M. Kobir, Mohamed S. M. Ali, J. Hossain, M. Alam, M. Rahman, K. Ahammad, P. Hajong, S. Paul
Sea level rising, as a result of global warming, is a major threat to crop production; because inclusion of saline water in crop land limits the crop production. So, an experiment was undertaken to evaluate some mungbean genotypes under different levels of salt stresses in germination stage. The experiment was conducted at Regional Agricultural Research Station, Jashore during Rabi 2020-2021. The seeds of seven mungbean genotypes viz. BARI Mung-6, BARI Mung-8, BMXKI-112004-3, BMXKI- 112009-21, MMAT-V07, BMMP-201524 and BMMP-201506 were collected from different sources. This experiment was conducted following factorial completely randomized design (CRD) with two replications. The experimental factors were i) mungbean genotypes (seven) and ii) salt stress (three levels: 0, 4 and 8 dSm-1). The results showed that mungbean var. BARI Mung-6 at 0 dSm-1 and 4 dSm-1 showed highest value in case of germination index (9), germination percentage (100%), co-efficient of germination (40), vigor index (1950) and lowest value in case of mean germination time (2.5). BARI Mung-8 at 0 dS m-1 showed the inverse results. Genotype BMXKI-112009- 21, MMAT-V07 and BMMP-201524 at 4 dSm-1 and in some extent in 8 dSm-1 showed highest value in case of germination stress tolerance index, plant height stress index, root length stress index, shoot fresh weight stress index, root fresh weight stress index, shoot dry weight stress index and in root dry weight stress index. The lowest values in these parameters were found in BARI Mung-8 at 8 dSm-1 salt stress. BARI Mung-6, MMATV07, BMXKI-112009-21 and BMMP-201524 genotypes were found to be more tolerant to salt stress than rest of the genotypes in germination stage. Bangladesh Agron. J. 2022, 25(1): 57-65
{"title":"Salt Stress Tolerance and Germination Performance Of Mungbean Genotypes Under Salt Stress","authors":"M. Kobir, Mohamed S. M. Ali, J. Hossain, M. Alam, M. Rahman, K. Ahammad, P. Hajong, S. Paul","doi":"10.3329/baj.v25i1.62832","DOIUrl":"https://doi.org/10.3329/baj.v25i1.62832","url":null,"abstract":"Sea level rising, as a result of global warming, is a major threat to crop production; because inclusion of saline water in crop land limits the crop production. So, an experiment was undertaken to evaluate some mungbean genotypes under different levels of salt stresses in germination stage. The experiment was conducted at Regional Agricultural Research Station, Jashore during Rabi 2020-2021. The seeds of seven mungbean genotypes viz. BARI Mung-6, BARI Mung-8, BMXKI-112004-3, BMXKI- 112009-21, MMAT-V07, BMMP-201524 and BMMP-201506 were collected from different sources. This experiment was conducted following factorial completely randomized design (CRD) with two replications. The experimental factors were i) mungbean genotypes (seven) and ii) salt stress (three levels: 0, 4 and 8 dSm-1). The results showed that mungbean var. BARI Mung-6 at 0 dSm-1 and 4 dSm-1 showed highest value in case of germination index (9), germination percentage (100%), co-efficient of germination (40), vigor index (1950) and lowest value in case of mean germination time (2.5). BARI Mung-8 at 0 dS m-1 showed the inverse results. Genotype BMXKI-112009- 21, MMAT-V07 and BMMP-201524 at 4 dSm-1 and in some extent in 8 dSm-1 showed highest value in case of germination stress tolerance index, plant height stress index, root length stress index, shoot fresh weight stress index, root fresh weight stress index, shoot dry weight stress index and in root dry weight stress index. The lowest values in these parameters were found in BARI Mung-8 at 8 dSm-1 salt stress. BARI Mung-6, MMATV07, BMXKI-112009-21 and BMMP-201524 genotypes were found to be more tolerant to salt stress than rest of the genotypes in germination stage. \u0000Bangladesh Agron. J. 2022, 25(1): 57-65","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45850746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Soil salinity is becoming an alarming issue in crop production and increasing trend with a disastrous effect in near future. An experiment was conducted following completely randomized design to investigate the responses of zinc (Zn) priming (0.5 and 1.0 mM ZnSO4· 7H2O) upon exposure to different salt concentrations (50, 100, and 150 mM NaCl) in mitigating salt-induced damages in soybean (Glycine max L.). Results evidenced that shoot and root length, stem diameter, number of branches, number of leaves, and shoot and root biomass was reduced in a dose-dependent manner compared to control seedling. In a contrary, Zn priming resulted in the improvement of the parameters, particularly at a lower dose of salt. Moreover, leaf reduced relative water content and proline content were revived in primed seed in comparison with non-primed stressed plants. These triggers soybean plants' tolerance to salt stress. It was concluded that priming seeds with lower concentration of Zn (0.5 mM) could alleviate the salt stress through improving plant growth characteristics, relative water content while decreasing proline content. Bangladesh Agron. J. 2022, 25(1): 47-56
土壤盐度正成为作物生产中一个令人担忧的问题，并在不久的将来呈上升趋势，产生灾难性影响。采用完全随机设计进行了一项实验，研究了锌（Zn）引发剂（0.5和1.0mM ZnSO4·7H2O）在不同盐浓度（50、100和150mM NaCl）下减轻大豆（Glycine max L.）盐诱导损伤的反应。结果表明，与对照幼苗相比，地上部和根部生物量以剂量依赖的方式减少。相反，锌引发导致参数的改善，特别是在较低剂量的盐下。此外，与未引发胁迫的植物相比，引发种子中叶片减少的相对含水量和脯氨酸含量得以恢复。这些触发了大豆植物对盐胁迫的耐受性。结果表明，用较低浓度的锌（0.5mM）引发种子可以通过改善植物生长特性、相对含水量和降低脯氨酸含量来缓解盐胁迫。孟加拉国Agron。J.2022，25（1）：47-56
{"title":"Zinc Priming Triggers Osmoregulation to Enhancing Growth of Soybean (Glycine Max L.) Under Salinity","authors":"F. Nowroz, M. Alam, M. Raihan","doi":"10.3329/baj.v25i1.62831","DOIUrl":"https://doi.org/10.3329/baj.v25i1.62831","url":null,"abstract":"Soil salinity is becoming an alarming issue in crop production and increasing trend with a disastrous effect in near future. An experiment was conducted following completely randomized design to investigate the responses of zinc (Zn) priming (0.5 and 1.0 mM ZnSO4· 7H2O) upon exposure to different salt concentrations (50, 100, and 150 mM NaCl) in mitigating salt-induced damages in soybean (Glycine max L.). Results evidenced that shoot and root length, stem diameter, number of branches, number of leaves, and shoot and root biomass was reduced in a dose-dependent manner compared to control seedling. In a contrary, Zn priming resulted in the improvement of the parameters, particularly at a lower dose of salt. Moreover, leaf reduced relative water content and proline content were revived in primed seed in comparison with non-primed stressed plants. These triggers soybean plants' tolerance to salt stress. It was concluded that priming seeds with lower concentration of Zn (0.5 mM) could alleviate the salt stress through improving plant growth characteristics, relative water content while decreasing proline content. \u0000Bangladesh Agron. J. 2022, 25(1): 47-56","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41666885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The experiment was conducted in Boro season, 2020-21 to compare the performance of fortified rice variety BRRI dhan84 with non-fortified mega variety BRRI dhan89 and their suitable combinations for maximum growth and yield. Treatments were: two rice variety viz., i) BRRI dhan84 (V1) and ii) BRRI dhan89 (V2) in the main plot and seven different fertilizer management viz., i) No fertilizer (F1), ii) Recommended NPKS (RFD) with Zn as basal (F2), iii) RFD + Zn as foliar at anthesis (F3), iv) RFD + Zn & B as foliar at anthesis (F4), v) 50% RFD + 50% Cowdung as basal (F5), vi) 50% RFD + 50% Cowdung + Zn & B as basal (F6) and vii) 50% RFD + 50% Cowdung as basal + Zn & B as foliar at anthesis (F7) in the sub-plot. The experiment was laid out in a Split-plot design having 3 replications. No significant variations observed between the two varieties for almost all the studied characters except filled grains panicle-1 where the variety BRRI dhan89 showed higher number of grains (116.14) than the other variety. Foliar application of zinc and born (F4) gave the highest plant height (102.54 cm), effective tillers hill-1 (12.83) that similar (13.00) with F2 (recommended NPKS with Zn as basal), panicle length (25.91 cm), 1000-grain weight (23.58 g), grain yield (7.67 t ha-1), biological yield (14.85 t ha-1) and harvest index (51.69%). The interaction of V2F4 and V1F4 resulted superior response for almost all the studied parameters. Foliar application of zinc and boron (F4) along with RFD increased 8.79 and 27.45% yield in BRRI dhan89 compared to that of foliar (F3) and basal (F2) application of zinc, respectively that was 17.11 and 26.77% for the other rice variety BRRI dhan84. Bangladesh Agron. J. 2022, 25(1): 97-103
{"title":"Sustainable Soil Management for Nutrition Sensitive Agriculture Through Micronutrient Inclusion In Boro Rice Cultivation","authors":"P. Biswas, S. Samia, S. Shome","doi":"10.3329/baj.v25i1.62852","DOIUrl":"https://doi.org/10.3329/baj.v25i1.62852","url":null,"abstract":"The experiment was conducted in Boro season, 2020-21 to compare the performance of fortified rice variety BRRI dhan84 with non-fortified mega variety BRRI dhan89 and their suitable combinations for maximum growth and yield. Treatments were: two rice variety viz., i) BRRI dhan84 (V1) and ii) BRRI dhan89 (V2) in the main plot and seven different fertilizer management viz., i) No fertilizer (F1), ii) Recommended NPKS (RFD) with Zn as basal (F2), iii) RFD + Zn as foliar at anthesis (F3), iv) RFD + Zn & B as foliar at anthesis (F4), v) 50% RFD + 50% Cowdung as basal (F5), vi) 50% RFD + 50% Cowdung + Zn & B as basal (F6) and vii) 50% RFD + 50% Cowdung as basal + Zn & B as foliar at anthesis (F7) in the sub-plot. The experiment was laid out in a Split-plot design having 3 replications. No significant variations observed between the two varieties for almost all the studied characters except filled grains panicle-1 where the variety BRRI dhan89 showed higher number of grains (116.14) than the other variety. Foliar application of zinc and born (F4) gave the highest plant height (102.54 cm), effective tillers hill-1 (12.83) that similar (13.00) with F2 (recommended NPKS with Zn as basal), panicle length (25.91 cm), 1000-grain weight (23.58 g), grain yield (7.67 t ha-1), biological yield (14.85 t ha-1) and harvest index (51.69%). The interaction of V2F4 and V1F4 resulted superior response for almost all the studied parameters. Foliar application of zinc and boron (F4) along with RFD increased 8.79 and 27.45% yield in BRRI dhan89 compared to that of foliar (F3) and basal (F2) application of zinc, respectively that was 17.11 and 26.77% for the other rice variety BRRI dhan84. \u0000Bangladesh Agron. J. 2022, 25(1): 97-103","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43774371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Ferdous, M. Hossain, M. Sarker, M. Alim, MM Islam
The experiment was conducted at Jute Agriculture Experimental Station (JAES), Manikganj and Jute Research Sub Station (JRSS), Jashore during 2019- 2020 to determine the optimum sowing date of advanced breeding line O-0412-9-4, O-043-7-9 of tossa jute and BJRI Tossa Pat 5 (O-795) used as control. The experiment was laid-out in factorial RCBD with three replications. Crops were sown on four different dates viz., 30 March, 15 April, 30 April and 15 May as treatment variables. Plants were harvested at 120 days after sowing. All crops were given normal cultural practices. Results showed that advanced breeding line O-0412-9-4 and O-043-7-9 sown on 30 March to 10 April gave significantly higher fibre yield of 3.11 and 3.04 t ha-1, respectively) at Manikganj and 3.13 and 3.11 t ha-1, respectively at and Jashore. Bangladesh Agron. J. 2022, 25(1): 1-6
本试验于2019-2020年在Jashore Manikganj黄麻农业试验站（JAES）和黄麻研究分站（JRSS）进行，以确定托萨黄麻和BJRI托萨专利5号（O-795）作为对照的先进育种系O-0412-9-4、O-043-7-9的最佳播种期。实验在析因RCBD中进行，共进行了三次重复。作物在四个不同的日期播种，即3月30日、4月15日、4日30日和5月15日，作为处理变量。植物在播种后120天收获。所有作物都有正常的栽培习惯。结果表明，3月30日至4月10日播种的先进育种系O-0412-9-4和O-043-7-9在Manikganj和Jashore分别获得了显著较高的纤维产量（分别为3.11和3.04 t ha-1）和3.13和3.11 t ha-1。孟加拉国Agron。J.2022，25（1）：1-6
{"title":"Effect Of Sowing Date On Fibre Yield And Yield Attributes Of Advanced Breeding Line O-0412-9-4 And O- 043-7-9 Of Tossa Jute (Corchorus Olitorius L.)","authors":"J. Ferdous, M. Hossain, M. Sarker, M. Alim, MM Islam","doi":"10.3329/baj.v25i1.62824","DOIUrl":"https://doi.org/10.3329/baj.v25i1.62824","url":null,"abstract":"The experiment was conducted at Jute Agriculture Experimental Station (JAES), Manikganj and Jute Research Sub Station (JRSS), Jashore during 2019- 2020 to determine the optimum sowing date of advanced breeding line O-0412-9-4, O-043-7-9 of tossa jute and BJRI Tossa Pat 5 (O-795) used as control. The experiment was laid-out in factorial RCBD with three replications. Crops were sown on four different dates viz., 30 March, 15 April, 30 April and 15 May as treatment variables. Plants were harvested at 120 days after sowing. All crops were given normal cultural practices. Results showed that advanced breeding line O-0412-9-4 and O-043-7-9 sown on 30 March to 10 April gave significantly higher fibre yield of 3.11 and 3.04 t ha-1, respectively) at Manikganj and 3.13 and 3.11 t ha-1, respectively at and Jashore. \u0000Bangladesh Agron. J. 2022, 25(1): 1-6","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46501169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Begum, M. Rahman, J. Hossain, S. Kakon, Mz Ali, D. Choudhury
A field experiment was undertaken at Joydebpur, Jashore and Ishurdi Farm of Bangladesh Agricultural Research Institute during Kharif seasons of 2016 and 2017 to find out suitable combination of hybrid maize and Indian spinach as intercropping system for higher productivity and monetary advantage. Treatments included in the experiment were: T1 = Hybrid maize normal row (75 cm × 20 cm ) + 1 row Indian spinach (plant to plant 25 cm), T2 = Hybrid maize paired row (37.5 cm/150 cm × 20 cm) + 1 row Indian spinach (plant to plant 25 cm), T3 = Hybrid maize paired row (37.5 cm/150 cm × 20 cm) + 2 rows Indian spinach (plant to plant 25 cm), T4 = Hybrid maize paired row (37.5 cm/150 cm × 20 cm) + 3 rows Indian spinach (plant to plant 25 cm), T5 = Sole maize (75 cm × 20 cm) and T6 = Sole Indian spinach (40 cm × 25 cm). Grain yield of maize was the maximum in sole crop but it was decreased 1.0 to 12.6% at Joydebpur, 5.2 to 17.1% at Jashore and 13.4 to 22.2% at Ishurdi due to inter specific competition for growth resources among maize and Indian spinach due to intercropping. All intercropping treatments showed better performance than sole maize crop. The highest maize equivalent yield (19.22 and 18.80 t ha-1 at Joydebpur, 13.30 and 11.58 t ha-1 at Jashore and 11.23 and 11.10 t ha-1 at Ishurdi in 2016 and 2017, respectively), gross margin (Tk. 196300 and Tk. 192000 ha-1 at Joydebpur, Tk. 111130 and Tk. 85330 ha-1 at Jashore and Tk. 88450 and Tk. 86500 ha-1 at Ishurdi in 2016 and 2017, respectively) and benefit cost ratio (3.13 and 3.07 at Joydebpur, 2.26 and 1.97 at Jashore and 2.11 and 2.08 at Ishurdi in 2016 and 2017, respectively) were observed in hybrid maize paired row + 3 rows Indian spinach intercropping. The highest land equivalent ratio (1.32 and 1.39 at Joydebpur and 1.50 and 1.47 at Jashore in 2016 and 2017, respectively) was also found in the same treatment. On the other hand, at Ishurdi, the highest LER (1.34 and 1.35 in 2016 and 2017, respectively) was observed in MNR + 1 rows ISP treatment followed by MPR + 3 rows ISP treatment. The results revealed that hybrid maize paired row + 3 rows Indian spinach and Hybrid maize normal row + 1 row Indian spinach intercropping might be economically profitable for hybrid maize + Indian spinach intercropping system at Joydebpur, Jashore and Ishurdi. Bangladesh Agron. J. 2022, 25(1): 75-82
在2016年和2017年的Kharif季节，在孟加拉国农业研究所的Joydebpur、Jashore和Ishurdi农场进行了田间试验，以寻找杂交玉米和印度菠菜作为间作系统的合适组合，从而获得更高的生产力和货币优势。试验中包括的处理为：T1=杂交玉米正常行（75cm×20cm）+1行印度菠菜（株间25cm），T2=杂交玉米成对行（37.5cm/150cm×20cm）+1行印度人菠菜（株对25cm）；T3=杂交玉米对行（37.5cm/150cm×20cm）+2行印度人菠菜，T4=杂交玉米成对行（37.5厘米/150厘米×20厘米）+3行印度菠菜（株对株25厘米），T5=独播玉米（75厘米×20 cm），T6=独播印度菠菜（40厘米×25厘米）。玉米产量在单一作物中最高，但由于玉米和印度菠菜间作对生长资源的特定竞争，Joydebpur的玉米产量下降了1.0%至12.6%，Jashore的玉米产量降低了5.2%至17.1%，Ishurdi的玉米产量减少了13.4%至22.2%。所有间作处理均表现出比单一玉米作物更好的表现。最高的玉米当量产量（2016年和2017年，Joydebpur分别为19.22和18.80 t ha-1，Jashore分别为13.30和11.58 t ha-1和Ishurdi分别为11.23和11.10 t ha-1），在杂交玉米对行+3行印度菠菜中观察到毛利率（Joydebpur分别为196300和192000 ha-1，Jashore分别为111130和85330 ha-1，Ishurdi分别为88450和86500 ha-1）和效益成本比（Joydebbur分别为3.13和3.07，Jashor分别为2.26和1.97，Ishurdy分别为2.11和2.08）间作。在同一处理中也发现了最高的土地当量比（2016年和2017年，Joydebpur的土地当量率分别为1.32和1.39，Jashore的土地当量比率分别为1.50和1.47）。另一方面，在Ishurdi，MNR+1行ISP处理的LER最高（2016年和2017年分别为1.34和1.35），其次是MPR+3行ISP处理。结果表明，在Joydebpur、Jashore和Ishurdi，杂交玉米对行+3行印度菠菜和杂交玉米正常行+1行印度菠菜间作系统可能具有经济效益。孟加拉国Agron。J.2022，25（1）：75-82
{"title":"Effect of Planting System on Productivity of Hybrid Maize-Indian Spinach Intercropping System","authors":"A. Begum, M. Rahman, J. Hossain, S. Kakon, Mz Ali, D. Choudhury","doi":"10.3329/baj.v25i1.62849","DOIUrl":"https://doi.org/10.3329/baj.v25i1.62849","url":null,"abstract":"A field experiment was undertaken at Joydebpur, Jashore and Ishurdi Farm of Bangladesh Agricultural Research Institute during Kharif seasons of 2016 and 2017 to find out suitable combination of hybrid maize and Indian spinach as intercropping system for higher productivity and monetary advantage. Treatments included in the experiment were: T1 = Hybrid maize normal row (75 cm × 20 cm ) + 1 row Indian spinach (plant to plant 25 cm), T2 = Hybrid maize paired row (37.5 cm/150 cm × 20 cm) + 1 row Indian spinach (plant to plant 25 cm), T3 = Hybrid maize paired row (37.5 cm/150 cm × 20 cm) + 2 rows Indian spinach (plant to plant 25 cm), T4 = Hybrid maize paired row (37.5 cm/150 cm × 20 cm) + 3 rows Indian spinach (plant to plant 25 cm), T5 = Sole maize (75 cm × 20 cm) and T6 = Sole Indian spinach (40 cm × 25 cm). Grain yield of maize was the maximum in sole crop but it was decreased 1.0 to 12.6% at Joydebpur, 5.2 to 17.1% at Jashore and 13.4 to 22.2% at Ishurdi due to inter specific competition for growth resources among maize and Indian spinach due to intercropping. All intercropping treatments showed better performance than sole maize crop. The highest maize equivalent yield (19.22 and 18.80 t ha-1 at Joydebpur, 13.30 and 11.58 t ha-1 at Jashore and 11.23 and 11.10 t ha-1 at Ishurdi in 2016 and 2017, respectively), gross margin (Tk. 196300 and Tk. 192000 ha-1 at Joydebpur, Tk. 111130 and Tk. 85330 ha-1 at Jashore and Tk. 88450 and Tk. 86500 ha-1 at Ishurdi in 2016 and 2017, respectively) and benefit cost ratio (3.13 and 3.07 at Joydebpur, 2.26 and 1.97 at Jashore and 2.11 and 2.08 at Ishurdi in 2016 and 2017, respectively) were observed in hybrid maize paired row + 3 rows Indian spinach intercropping. The highest land equivalent ratio (1.32 and 1.39 at Joydebpur and 1.50 and 1.47 at Jashore in 2016 and 2017, respectively) was also found in the same treatment. On the other hand, at Ishurdi, the highest LER (1.34 and 1.35 in 2016 and 2017, respectively) was observed in MNR + 1 rows ISP treatment followed by MPR + 3 rows ISP treatment. The results revealed that hybrid maize paired row + 3 rows Indian spinach and Hybrid maize normal row + 1 row Indian spinach intercropping might be economically profitable for hybrid maize + Indian spinach intercropping system at Joydebpur, Jashore and Ishurdi. Bangladesh Agron. J. 2022, 25(1): 75-82","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48662696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Roy, MS Rahman, M. Mostofa, M. Nahid, MG Khatun, M. Razzaque
A pot experiment was conducted in the experimental field of Sher-e-Bangla Agricultural University, Dhaka during the period from November, 2020 to May, 2021 to find out the effect of rice husk as an bio-adsorbent to decontaminate As toxicity in potato. The experiment consisted of two factors. Factor A: Arsenic levels (4) viz., As0: control (0 mg As kg-1 soil), As1: 20 mg As kg-1 soil, As2: 40 mg As kg-1 soil, and As3: 60 mg As kg-1 soil. Factor B: Rice husk levels (4) viz., R0: control (0 g kg-1 soil), R1: 20 g kg-1 soil, R2: 40 g kg-1 soil and R3: 60 g kg-1 soil. The experiment was laid out in a factorial randomized complete block design with three replications. Results revealed that As and/or rice husk had significant effect on arsenic load in different plant parts of potato t. Arsenic content in potato tuber flesh, peel, haulm and root gradually increased with the increase of its levels. On the contrary, As content in plant parts decreased with increasing rice husk levels. The soil treated with As1R3 exhibited As accumulation in tuber flesh (0.1070 mg kg-1 fresh weight) and peel (0.443 mg kg-1 FW), respectively. As load in different plant parts was in the sequence: root > haulm > tuber peel > tuber flesh. Although, the least As loading in tuber flesh was observed in As1R1, As1R2, As1R3 (range 0.1258-0.1070 mg kg-1 FW) which also showed higher productivity (range 402.67 - 416.67 g plant-1), but the treatment combination of As1R1 may be suitable for safe potato cultivation in lower level As contaminated soil. Therefore, potato growers can grow potato up to 20 mg As kg-1 contaminated soil treated with 20 g rice husk kg1 soil, which contains safe As load than the critical one (0.157 mg As kg-1 FW) for human consumption. So, application of rice husk for potato cultivation may a good option to reduce the arsenic hazards in lower arsenic endemic areas. Bangladesh Agron. J. 2022, 25(1): 67-73
2020年11月至2021年5月，在达卡Sher-e-Bangla农业大学的试验场进行了盆栽试验，以了解稻壳作为生物吸附剂对马铃薯砷毒性的净化效果。实验由两个因素组成。因子A：砷含量（4），即As0：对照（0 mg As kg-1土壤），As1:20 mg As kg-1土壤，As2:40 mg As kg-土壤，以及As3:60 mg As kg-1土壤。因子B：稻壳水平（4），即R0：对照（0 g kg-1土壤），R1:20 g kg-1-1土壤，R2:40 g kg-11土壤和R3:60 g kg-1土壤。实验采用析因随机完全区组设计，三次重复。结果表明，As和/或稻壳对马铃薯不同部位的砷负荷有显著影响。马铃薯块茎果肉、果皮、茎和根中的砷含量随砷含量的增加而逐渐增加。相反，随着稻壳含量的增加，植物部分砷含量下降。As1R3处理的土壤在块茎果肉（0.1070 mg kg-1鲜重）和果皮（0.443 mg kg-1 FW）中分别表现出As的积累。不同部位的As负荷顺序为：根>茎>块茎皮>块茎肉。尽管在As1R1、As1R2和As1R3中观察到块茎肉中的As含量最低（范围0.1258-0.1070 mg kg-1 FW），其也显示出较高的生产力（范围402.67-416.67 g plant-1），但As1R1的处理组合可能适合在低水平As污染的土壤中安全种植马铃薯。因此，马铃薯种植者可以种植高达20 mg As kg-1污染土壤的马铃薯，用20 g稻壳kg-1土壤处理，其含有比人类食用的临界As负荷（0.157 mg As kg-1FW）更安全的As负荷。因此，在低砷流行区应用稻壳种植马铃薯可能是减少砷危害的一个很好的选择。孟加拉国Agron。J.2022，25（1）：67-73
{"title":"Effect of Rice Husk on Arsenic Accumulation In Potato Plant Under Different Levels of Arsenic Treated Soil","authors":"T. Roy, MS Rahman, M. Mostofa, M. Nahid, MG Khatun, M. Razzaque","doi":"10.3329/baj.v25i1.62833","DOIUrl":"https://doi.org/10.3329/baj.v25i1.62833","url":null,"abstract":"A pot experiment was conducted in the experimental field of Sher-e-Bangla Agricultural University, Dhaka during the period from November, 2020 to May, 2021 to find out the effect of rice husk as an bio-adsorbent to decontaminate As toxicity in potato. The experiment consisted of two factors. Factor A: Arsenic levels (4) viz., As0: control (0 mg As kg-1 soil), As1: 20 mg As kg-1 soil, As2: 40 mg As kg-1 soil, and As3: 60 mg As kg-1 soil. Factor B: Rice husk levels (4) viz., R0: control (0 g kg-1 soil), R1: 20 g kg-1 soil, R2: 40 g kg-1 soil and R3: 60 g kg-1 soil. The experiment was laid out in a factorial randomized complete block design with three replications. Results revealed that As and/or rice husk had significant effect on arsenic load in different plant parts of potato t. Arsenic content in potato tuber flesh, peel, haulm and root gradually increased with the increase of its levels. On the contrary, As content in plant parts decreased with increasing rice husk levels. The soil treated with As1R3 exhibited As accumulation in tuber flesh (0.1070 mg kg-1 fresh weight) and peel (0.443 mg kg-1 FW), respectively. As load in different plant parts was in the sequence: root > haulm > tuber peel > tuber flesh. Although, the least As loading in tuber flesh was observed in As1R1, As1R2, As1R3 (range 0.1258-0.1070 mg kg-1 FW) which also showed higher productivity (range 402.67 - 416.67 g plant-1), but the treatment combination of As1R1 may be suitable for safe potato cultivation in lower level As contaminated soil. Therefore, potato growers can grow potato up to 20 mg As kg-1 contaminated soil treated with 20 g rice husk kg1 soil, which contains safe As load than the critical one (0.157 mg As kg-1 FW) for human consumption. So, application of rice husk for potato cultivation may a good option to reduce the arsenic hazards in lower arsenic endemic areas. \u0000Bangladesh Agron. J. 2022, 25(1): 67-73 ","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44339675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Mahfuza, Afms Ahsan, I. Ahmed, F. Ahmed, A. Talukder, M. Islam
Soybean (Glycine max L. Merr) has a tremendous value in agriculture as a good source of high-quality plant protein and vegetable oils in one hand and nitrogen fixing ability on the other, now a day largely growing in coastal salt marshes areas of Bangladesh. The aim of this study was to evaluate morphological and physiological responses of soybean varieties (Shohag, BARI Soybean-6, BARI Soybean-5 and Binasoybean-4) to pot grown plants in different concentrations of salinity level i.e., control (0.3), 4, 8 and 12 dS m−1 during 2020-21. Irrespective of the variety, with the increase of salinity levels physiological parameters as well as seed yield were greatly affected. Salinity stress decreased total chlorophyll (Chl a+b) and total dry matter (TDM) was reduced due to salinity stress, which ultimately reduced seed yield irrespective of the variety. Sodium (Na+), calcium (Ca2+), potassium (K+) ion content and the potassium sodium ratios (K+: Na+) in leaf tissue were significantly affected by salinity levels. Under salinity stress, BARI Soybean- 6 showed a higher K+: Na+ ratio in leaf, which indicates higher tolerance to salinity compared to others. However, H2O2 and MDA contents was comparatively lower in the respective variety. This variety also showed higher TDM production, filled pods plant-1 and seed yield plant-1 in all salinity levels compared to other varieties. Results revealed that, soybean var. BARI Soybean-6showedmore tolerance against salinity stress compared to other varieties. Bangladesh Agron. J. 2022, 25(1): 15-22
大豆(Glycine max L. Merr)在农业上具有巨大的价值，一方面是优质植物蛋白和植物油的良好来源，另一方面具有固氮能力，现在在孟加拉国沿海盐沼地区大量种植。本研究旨在评价2020- 2021年不同盐度水平(对照(0.3)、4、8和12 dS m−1)对盆栽大豆品种(Shohag、BARI soybean- 6、BARI soybean- 5和Binasoybean-4)的形态和生理反应。无论品种如何，随着盐度水平的增加，生理参数和种子产量都受到很大影响。盐胁迫降低了总叶绿素(Chl a+b)和总干物质(TDM)，最终降低了籽粒产量。盐度对叶片组织中钠(Na+)、钙(Ca2+)、钾(K+)离子含量和钾钠比(K+: Na+)有显著影响。在盐胁迫下，BARI大豆- 6叶片K+: Na+比值较高，表现出较强的耐盐性。但各品种的H2O2和MDA含量相对较低。与其他品种相比，该品种在所有盐度水平下均表现出更高的TDM产量、饱满荚果植株-1和籽粒产量植株-1。结果表明，与其他品种相比，BARI soybean -6对盐胁迫表现出更强的耐受性。孟加拉国阿格龙。J. 2022, 25(1): 15-22
{"title":"Morpho-Physiological Responses of Soybean Varieties to Salinity Stress","authors":"S. Mahfuza, Afms Ahsan, I. Ahmed, F. Ahmed, A. Talukder, M. Islam","doi":"10.3329/baj.v25i1.62826","DOIUrl":"https://doi.org/10.3329/baj.v25i1.62826","url":null,"abstract":"Soybean (Glycine max L. Merr) has a tremendous value in agriculture as a good source of high-quality plant protein and vegetable oils in one hand and nitrogen fixing ability on the other, now a day largely growing in coastal salt marshes areas of Bangladesh. The aim of this study was to evaluate morphological and physiological responses of soybean varieties (Shohag, BARI Soybean-6, BARI Soybean-5 and Binasoybean-4) to pot grown plants in different concentrations of salinity level i.e., control (0.3), 4, 8 and 12 dS m−1 during 2020-21. Irrespective of the variety, with the increase of salinity levels physiological parameters as well as seed yield were greatly affected. Salinity stress decreased total chlorophyll (Chl a+b) and total dry matter (TDM) was reduced due to salinity stress, which ultimately reduced seed yield irrespective of the variety. Sodium (Na+), calcium (Ca2+), potassium (K+) ion content and the potassium sodium ratios (K+: Na+) in leaf tissue were significantly affected by salinity levels. Under salinity stress, BARI Soybean- 6 showed a higher K+: Na+ ratio in leaf, which indicates higher tolerance to salinity compared to others. However, H2O2 and MDA contents was comparatively lower in the respective variety. This variety also showed higher TDM production, filled pods plant-1 and seed yield plant-1 in all salinity levels compared to other varieties. Results revealed that, soybean var. BARI Soybean-6showedmore tolerance against salinity stress compared to other varieties. \u0000Bangladesh Agron. J. 2022, 25(1): 15-22","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43852306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Islam, P. Biswas, A. Amin, M. Fujita, A. Paul, J. Mahmud, M. Hasanuzzaman
Considering the effect of salt stress on morph-physiological and biochemical changes of wheat (Triticum aestivum L. var. BARI Gom-26) as well as mitigation of the adverse effect through exogenous application of Ascorbic Acid (AsA), Silicon (Si) and Gibberellic Acid (GA3), the experiment was conducted at Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh. In the field experiment, four levels of salt stress (0, 50, 80, 120 mM NaCl) were applied at 20 days after sowing and grown up to harvest. AsA (2 mM ascorbic acid), Si (200 μM SiO2), GA3 (100 μM gibberellic acid) were applied as foliar spraying at 20 days interval. Seeds were collected from the field experiment which used as secondary seeds as planting materials for second experiment to evaluate the influence of AsA, Si and GA3 on growth performance and physiological attributes of seedlings under salt stress. Experiment revealed that AsA, Si and GA3 enhanced the germination and growth performance of seedling under salinity stress. Overall, GA3 significantly increased the seed germination (%) and seedling growth parameters, while silicon mostly improved the fresh weight and chlorophyll (a, b and a+b) and AsA showed better relative water contents with other parameters. Considering the results of experiments, GA3 performed better than the AsA and Si in mitigating salt stress. Bangladesh Agron. J. 2022, 25(1): 115-128
考虑到盐胁迫对小麦(Triticum aestivum L. var. BARI Gom-26)形态生理生化变化的影响，以及通过外源施用抗坏血酸(AsA)、硅(Si)和赤霉素(GA3)来缓解这一不利影响，本试验在孟加拉国达卡Sher-e-Bangla农业大学农学系进行。在田间试验中，从播种后20 d开始施用0、50、80、120 mM NaCl 4种不同水平的盐胁迫，直至成熟收获。叶片喷施AsA (2 mM抗坏血酸)、Si (200 μM SiO2)、GA3 (100 μM赤霉素酸)，间隔20 d。田间试验收集种子作为次生种子作为种植材料进行二次试验，评价盐胁迫下AsA、Si和GA3对幼苗生长性能和生理属性的影响。试验结果表明，AsA、Si和GA3能提高盐胁迫下幼苗的萌发和生长性能。总体而言，GA3显著提高了种子发芽率(%)和幼苗生长参数，而硅主要提高了鲜重和叶绿素(a、b和a+b)， AsA对其他参数的相对含水量有较好的影响。综上所述，GA3对盐胁迫的缓解效果优于AsA和Si。孟加拉国阿格龙。[j] .浙江农业学报，2016,25(1):115-128
{"title":"Germination and Growth Performance of Seedlings Of Ascorbic Acid, Silicon and Gibberellic Acid Treated Secondary Seed of Wheat Under Salt Stress","authors":"S. Islam, P. Biswas, A. Amin, M. Fujita, A. Paul, J. Mahmud, M. Hasanuzzaman","doi":"10.3329/baj.v25i1.62854","DOIUrl":"https://doi.org/10.3329/baj.v25i1.62854","url":null,"abstract":"Considering the effect of salt stress on morph-physiological and biochemical changes of wheat (Triticum aestivum L. var. BARI Gom-26) as well as mitigation of the adverse effect through exogenous application of Ascorbic Acid (AsA), Silicon (Si) and Gibberellic Acid (GA3), the experiment was conducted at Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh. In the field experiment, four levels of salt stress (0, 50, 80, 120 mM NaCl) were applied at 20 days after sowing and grown up to harvest. AsA (2 mM ascorbic acid), Si (200 μM SiO2), GA3 (100 μM gibberellic acid) were applied as foliar spraying at 20 days interval. Seeds were collected from the field experiment which used as secondary seeds as planting materials for second experiment to evaluate the influence of AsA, Si and GA3 on growth performance and physiological attributes of seedlings under salt stress. Experiment revealed that AsA, Si and GA3 enhanced the germination and growth performance of seedling under salinity stress. Overall, GA3 significantly increased the seed germination (%) and seedling growth parameters, while silicon mostly improved the fresh weight and chlorophyll (a, b and a+b) and AsA showed better relative water contents with other parameters. Considering the results of experiments, GA3 performed better than the AsA and Si in mitigating salt stress. \u0000Bangladesh Agron. J. 2022, 25(1): 115-128","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47034984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
MM Khanam, N. Nawal, M. Hasanuzzaman, M. Karim, A. Rahman
A pot experiment was conducted in Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during aman season, 2018 to assess the effect of biochar on rice (BRRI dhan62) under salt stress conditions. The factorial experiment was laid out in Randomized Complete Block Design (RCBD) with four replications. Three levels of salinity were used viz. Control (S0), 1600 ppm NaCl (S1), and 2800 ppm NaCl (S2) under factor A and four levels of biochar were applied viz. 0 t ha−1 (B0), 2 t ha−1 (B1), 4 t ha−1 (B2) and 6 t ha−1 (B3) under factor B. The salt materials were added on pot in two installments at 20 and 30 days after transplanting (DAT). Exposure to salinity decreased growth and yield of rice including plant height, tillers hill-1, effective tillers hill-1, grains panicle-1, 1000-grain weight, grain yield and straw yield. The magnitude of growth and yield reduction increased with increasing the salinity level. Exposure of 1600 ppm and 2800 ppm NaCl declined the grain yield of rice by 28 and 100%, respectively. Straw yield (18 and 100%, respectively) and other yield contributing parameters declined by these two levels of salinity in the same way. Application of different levels of biochar ameliorated saltinduced damages to a certain extent. Under 2800 ppm NaCl stress, application of biochar extended life duration of rice plant upto 80 DAT, whereas without biochar application rice plant died after 60 DAT. Upon exposure to 1600 ppm NaCl stress, application of 2, 4 and 6 t ha−1 of biochar increased grain yield by 37, 42 and 30%, respectively, compared with the respective salt treatments (without biochar). Biochar enhanced yield of rice under saline conditions by enhancing yield contributing attributes including effective tillers and 1000-grain weight and by reducing salt-induced damages. However, response of 4 t ha−1 of biochar was best among the biochar levels (2, 4 and 6 t ha−1 of biochar) under both saline and non-saline conditions. Bangladesh Agron. J. 2022, 25(1): 105-113
2018年8月，在孟加拉国达卡的Sher-e-Bangla农业大学进行了盆栽试验，以评估盐胁迫条件下生物炭对水稻(BRRI dhan62)的影响。试验采用随机完全区组设计(RCBD)，共4个重复。在因子A条件下，盐浓度分别为对照(S0)、1600 ppm NaCl (S1)和2800 ppm NaCl (S2) 3个水平;在因子b条件下，生物炭浓度分别为0 t ha - 1 (B0)、2 t ha - 1 (B1)、4 t ha - 1 (B2)和6 t ha - 1 (B3) 4个水平。在移栽后20和30天(DAT)分2期在盆栽中添加盐。盐胁迫降低了水稻的生长和产量，包括株高、分蘖丘-1、有效分蘖丘-1、穗数-1、千粒重、籽粒产量和秸秆产量。随着盐度水平的增加，生长和减产幅度增大。1600 ppm和2800 ppm NaCl处理的水稻产量分别下降28%和100%。秸秆产量(分别为18%和100%)和其他产量贡献参数在这两个盐度水平下以相同的方式下降。施用不同水平的生物炭在一定程度上改善了盐害。在2800 ppm NaCl胁迫下，施用生物炭可使水稻植株寿命延长至80个DAT，而未施用生物炭的水稻植株在60个DAT后死亡。在1600 ppm NaCl胁迫下，与不施用生物炭的盐处理相比，施用2、4和6 t ha - 1的生物炭分别使籽粒产量提高了37%、42%和30%。生物炭通过提高有效分蘖数和千粒重等产量贡献属性以及减少盐害，提高了盐碱条件下水稻的产量。然而，在生理盐水和非生理盐水条件下，生物炭水平(2、4和6 t ha - 1)中，4 t ha - 1的生物炭反应最好。孟加拉国阿格龙。[j] .浙江农业学报，2014,25 (1):105-113
{"title":"Response of Biochar on Growth and Yield of Aman Rice Under Salt Stress","authors":"MM Khanam, N. Nawal, M. Hasanuzzaman, M. Karim, A. Rahman","doi":"10.3329/baj.v25i1.62853","DOIUrl":"https://doi.org/10.3329/baj.v25i1.62853","url":null,"abstract":"A pot experiment was conducted in Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during aman season, 2018 to assess the effect of biochar on rice (BRRI dhan62) under salt stress conditions. The factorial experiment was laid out in Randomized Complete Block Design (RCBD) with four replications. Three levels of salinity were used viz. Control (S0), 1600 ppm NaCl (S1), and 2800 ppm NaCl (S2) under factor A and four levels of biochar were applied viz. 0 t ha−1 (B0), 2 t ha−1 (B1), 4 t ha−1 (B2) and 6 t ha−1 (B3) under factor B. The salt materials were added on pot in two installments at 20 and 30 days after transplanting (DAT). Exposure to salinity decreased growth and yield of rice including plant height, tillers hill-1, effective tillers hill-1, grains panicle-1, 1000-grain weight, grain yield and straw yield. The magnitude of growth and yield reduction increased with increasing the salinity level. Exposure of 1600 ppm and 2800 ppm NaCl declined the grain yield of rice by 28 and 100%, respectively. Straw yield (18 and 100%, respectively) and other yield contributing parameters declined by these two levels of salinity in the same way. Application of different levels of biochar ameliorated saltinduced damages to a certain extent. Under 2800 ppm NaCl stress, application of biochar extended life duration of rice plant upto 80 DAT, whereas without biochar application rice plant died after 60 DAT. Upon exposure to 1600 ppm NaCl stress, application of 2, 4 and 6 t ha−1 of biochar increased grain yield by 37, 42 and 30%, respectively, compared with the respective salt treatments (without biochar). Biochar enhanced yield of rice under saline conditions by enhancing yield contributing attributes including effective tillers and 1000-grain weight and by reducing salt-induced damages. However, response of 4 t ha−1 of biochar was best among the biochar levels (2, 4 and 6 t ha−1 of biochar) under both saline and non-saline conditions.\u0000Bangladesh Agron. J. 2022, 25(1): 105-113","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41395107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Farmers’ existing rice production practices provide key indications of interventions for improving yield in their environments. This study aimed to explore those indications in the Fallow - T. Aman rice - Fallow cropping pattern (CP) under rainfed farming practiced by the farmers in Kapasia, Gazipur. Research method employed one-to-one and face-to face interview of 154 farmers practicing the CP. The average yield of T. Aman was estimated as 3.23 t ha-1, slightly below the national average yield of 3.93 t ha-1, in the range of 1.18 to 5.65 t ha-1. Variety was one of the two broad factors that determined the yield variation. The high yeld potential (HYP) category absolutely preferred the production aim, where Swarna-Ranjit (31.2% by farmer) and BRRI dhan49 (24.7% by farmer) were the dominated varieties where average yields were very close (3.51 and 3.36 t ha-1) for Swarna-Ranjit and BRRI dhan49, respectively). Management was the second factor determining the yield variation within varieties. While both the varieties received similar maximum yield (5.65 t ha-1), Swarna-Ranjit produced the minimum yield of 1.40 t ha-1 and BRRI dhan49 of 1.98 t ha-1. This study did not find a consistent pattern of response of the three measured management components - transplanting time, seedling age and seedling density to yield in either variety. The yield variance of BRRI dhan49 under three management components was higher compared to Swarna-Ranjit. Farmers practiced relatively a wide range of three management combinations to achieve high yield in Swarna-Ranjit, but a narrow range of the three management combinations for BRRI dhan49 to achieve the same level of yield. It is concluded that the variety-specific agronomic management to be the avenue for yield improvements in farmers’ fields. Bangladesh Agron. J. 2022, 25(1): 23-36
农民现有的水稻生产实践为改善其环境中的产量提供了干预措施的关键指标。本研究旨在探讨Gazipur Kapasia农民在雨养农业下的Fallow-T.Aman水稻-Fallow-种植模式（CP）中的这些迹象。研究方法采用一对一和面对面访谈的方式，对154名实施CP的农民进行了调查。估计T.Aman的平均产量为3.23 T ha-1，略低于全国3.93 T ha-2的平均产量，在1.18至5.65 T ha-1之间。品种是决定产量变化的两个主要因素之一。高yeld potential（HYP）类别绝对倾向于生产目标，其中Swarna Ranjit（农民占31.2%）和BRRI dhan49（农民占24.7%）是占主导地位的品种，Swarna Rangit和BRRI dhan49的平均产量非常接近（分别为3.51和3.36 t ha-1）。管理是决定品种间产量变化的第二个因素。虽然两个品种的最高产量相似（5.65 t ha-1），但Swarna Ranjit的最低产量为1.40 t ha-1，BRRI dhan49的最低产量是1.98 t ha-1。这项研究没有发现任何一个品种的三个测量管理组成部分——移植时间、苗龄和幼苗密度——对产量的反应模式一致。BRRI dhan49在三种管理成分下的产量方差高于Swarna Ranjit。Swarna Ranjit的农民采用了相对广泛的三种管理组合来实现高产，但BRRI dhan49采用了较窄的三种组合来实现相同的产量水平。结果表明，品种特异性农艺管理是提高农民田间产量的途径。孟加拉国Agron。J.2022，25（1）：23-36
{"title":"Farmers’ Rice Yield in Fallow - T. Aman Rice - Fallow Cropping Pattern Due to Variability in Genotype And Management","authors":"N. Parvin, M. Salam, M. Salam, M. Kader, B. Nessa","doi":"10.3329/baj.v25i1.62827","DOIUrl":"https://doi.org/10.3329/baj.v25i1.62827","url":null,"abstract":"Farmers’ existing rice production practices provide key indications of interventions for improving yield in their environments. This study aimed to explore those indications in the Fallow - T. Aman rice - Fallow cropping pattern (CP) under rainfed farming practiced by the farmers in Kapasia, Gazipur. Research method employed one-to-one and face-to face interview of 154 farmers practicing the CP. The average yield of T. Aman was estimated as 3.23 t ha-1, slightly below the national average yield of 3.93 t ha-1, in the range of 1.18 to 5.65 t ha-1. Variety was one of the two broad factors that determined the yield variation. The high yeld potential (HYP) category absolutely preferred the production aim, where Swarna-Ranjit (31.2% by farmer) and BRRI dhan49 (24.7% by farmer) were the dominated varieties where average yields were very close (3.51 and 3.36 t ha-1) for Swarna-Ranjit and BRRI dhan49, respectively). Management was the second factor determining the yield variation within varieties. While both the varieties received similar maximum yield (5.65 t ha-1), Swarna-Ranjit produced the minimum yield of 1.40 t ha-1 and BRRI dhan49 of 1.98 t ha-1. This study did not find a consistent pattern of response of the three measured management components - transplanting time, seedling age and seedling density to yield in either variety. The yield variance of BRRI dhan49 under three management components was higher compared to Swarna-Ranjit. Farmers practiced relatively a wide range of three management combinations to achieve high yield in Swarna-Ranjit, but a narrow range of the three management combinations for BRRI dhan49 to achieve the same level of yield. It is concluded that the variety-specific agronomic management to be the avenue for yield improvements in farmers’ fields.\u0000Bangladesh Agron. J. 2022, 25(1): 23-36 ","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44549448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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