This study was conducted in Crop Physiology and Ecology research field of Hajee Mohammad Danesh science and Technology University, Dinajpur during the two successive years of 2011-12 and 2012-13 to identify morpho-physiological attributes of wheat genotypes in response to terminal heat stress. In this respect, three sowing dates at November 27 (normal), December 17 (late) and January 7 (very late growing condition) and eight wheat genotypes viz., Pavon-76, Prodip, BARI Gom-25, BARI Gom-26, BAW-1143, BAW-1146, BAW-1147 and BAW-118 were evaluated. Growth and morphological changes of wheat genotypes were evaluated in relation to heat tolerance in field condition. Growth attributes such as LAR, SLA and LWR for all the genotypes declined throughout the advancement of growth stages in both the growing seasons and at heat stress condition values of all the parameters such as plant height and grain yields were reduced compared to normal condition. Bangladesh Agron. J. 2018, 21(1): 25-37
{"title":"Wheat Genotypes as Affected by Terminal Heat Stress in Northern Bangladesh","authors":"P. Bala, S. Sikder","doi":"10.3329/baj.v21i1.39358","DOIUrl":"https://doi.org/10.3329/baj.v21i1.39358","url":null,"abstract":"This study was conducted in Crop Physiology and Ecology research field of Hajee Mohammad Danesh science and Technology University, Dinajpur during the two successive years of 2011-12 and 2012-13 to identify morpho-physiological attributes of wheat genotypes in response to terminal heat stress. In this respect, three sowing dates at November 27 (normal), December 17 (late) and January 7 (very late growing condition) and eight wheat genotypes viz., Pavon-76, Prodip, BARI Gom-25, BARI Gom-26, BAW-1143, BAW-1146, BAW-1147 and BAW-118 were evaluated. Growth and morphological changes of wheat genotypes were evaluated in relation to heat tolerance in field condition. Growth attributes such as LAR, SLA and LWR for all the genotypes declined throughout the advancement of growth stages in both the growing seasons and at heat stress condition values of all the parameters such as plant height and grain yields were reduced compared to normal condition. \u0000Bangladesh Agron. J. 2018, 21(1): 25-37","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3329/baj.v21i1.39358","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44613393","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}
M. Maniruzzaman, Alam, Islam, Mz Islam, M. Molla, M. A. Islam
The experiment was conducted at charland of Charsadipur in Pabna district under AEZ-11 during Khrif season of 2014 and 2015 to determine appropriate fertilizer dose for enhancing yield of blackgram as well as to increase farmers’ income. The experiment was laid out in a randomized complete block design with four dispersed replications. Eight fertilizer packages, viz.T1: N20P15K6S9Zn2 kg ha-1(STB), T2: N25P15K6S9Zn2kg ha-1, T3: N25P19K6S9Zn2 kg ha-1, T4: N25P15K8S9Zn2 kg ha-1, T5: N20P19K8S9Zn2 kg ha-1, T6: N25P19K15S9Zn2 kg ha-1, T7: N15P11K5S7Zn1.5kg ha-1and T8: Native nutrients (control) were tested on blackgram. Fertilizer package of N25P19K15S9Zn2 kg ha-1 (T6) enhanced crop growth and yield of blackgram in both the years. Maximum seed yield of blackgram (1.43t ha-1 in 2014 and 0.97 t ha-1 in 2015) was obtained with N25P19K15S9Zn2 kg ha-1 (T6), which was 80 and 147% more than the control in 2014 and 2015, respectively. The highest gross return (Tk. 82815 ha-1 in 2014 and Tk. 65200 ha-1 in 2015) and gross margin (Tk. 51125 ha-1 in 2014 and Tk. 32020 ha-1 in 2015) were also recorded from the same treatment in both the years. The results revealed that fertilizer package of N25P19K15S9Zn2kg ha-1 might be recommended for getting higher seed yield of blackgram and economic return as well under charland condition of Pabna district Bangladesh Agron. J. 2018, 21(1): 89-94
该试验于2014年和2015年Khrif季节在Pabna区Charsadipur的charland根据AEZ-11进行，以确定提高黑色素产量和增加农民收入的适当肥料剂量。实验采用四个分散重复的随机完全区组设计。八个肥料包，即T1:N20P15K6S9Zn2 kg ha-1（STB），T2:N25P15K69Zn2kg ha-1，T3:N25P19K6S9Zn2 kg ha-1，T4:N25P15 K8 S9Zn2公斤ha-1，T5:N20P9K8 S9Zn 2公斤ha-1，T6:N25P19 K15S9Zn2千克ha-1、T7:N15P11K5S7Zn1.5kg ha-1和T8：天然营养素（对照）在黑图上进行测试。N25P19K15S9Zn2kg ha-1（T6）的肥料包在这两个年份都促进了作物生长和黑克产量。N25P19K15S9Zn2kg ha-1（T6）的黑克小麦产量最高（2014年1.43t ha-1，2015年0.97t ha-1），分别比2014年和2015年的对照增产80%和147%。在这两年中，同一处理的总回报率最高（2014年为82815千塔卡，2015年为65200千塔卡），毛利润率最高（2015年为32020千塔卡和2014年为51125千塔卡。结果表明，在孟加拉农牧业Pabna地区夏兰条件下，N25P19K15S9Zn2kg ha-1的施肥包可获得较高的黑穗种子产量和经济效益。J.2018，21（1）：89-94
{"title":"Development of Fertilizer Recommendation for Blackgram in Charland of Pabna, Bangladesh","authors":"M. Maniruzzaman, Alam, Islam, Mz Islam, M. Molla, M. A. Islam","doi":"10.3329/baj.v21i1.39365","DOIUrl":"https://doi.org/10.3329/baj.v21i1.39365","url":null,"abstract":"The experiment was conducted at charland of Charsadipur in Pabna district under AEZ-11 during Khrif season of 2014 and 2015 to determine appropriate fertilizer dose for enhancing yield of blackgram as well as to increase farmers’ income. The experiment was laid out in a randomized complete block design with four dispersed replications. Eight fertilizer packages, viz.T1: N20P15K6S9Zn2 kg ha-1(STB), T2: N25P15K6S9Zn2kg ha-1, T3: N25P19K6S9Zn2 kg ha-1, T4: N25P15K8S9Zn2 kg ha-1, T5: N20P19K8S9Zn2 kg ha-1, T6: N25P19K15S9Zn2 kg ha-1, T7: N15P11K5S7Zn1.5kg ha-1and T8: Native nutrients (control) were tested on blackgram. Fertilizer package of N25P19K15S9Zn2 kg ha-1 (T6) enhanced crop growth and yield of blackgram in both the years. Maximum seed yield of blackgram (1.43t ha-1 in 2014 and 0.97 t ha-1 in 2015) was obtained with N25P19K15S9Zn2 kg ha-1 (T6), which was 80 and 147% more than the control in 2014 and 2015, respectively. The highest gross return (Tk. 82815 ha-1 in 2014 and Tk. 65200 ha-1 in 2015) and gross margin (Tk. 51125 ha-1 in 2014 and Tk. 32020 ha-1 in 2015) were also recorded from the same treatment in both the years. The results revealed that fertilizer package of N25P19K15S9Zn2kg ha-1 might be recommended for getting higher seed yield of blackgram and economic return as well under charland condition of Pabna district \u0000Bangladesh Agron. J. 2018, 21(1): 89-94","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3329/baj.v21i1.39365","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44089415","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}
An experiment was carried out in Agronomy field of Sher-e-Bangla Agricultural University, Dhaka to find out the performance of wheat (var. BARI Gom 27) as influenced by time of irrigation and different mulch materials during 2015-2016. Four levels of irrigation viz. control, one irrigation at CRI (crown root initiation) stage, one irrigation at flowering stage and two irrigations each at CRI + flowering stage; and four different mulch materials viz. control, rice straw, rice husk and plastic sheets were considered as treatment variables. The experiment was laid out in a split- plot design with three replications, assigning irrigation to main plot and mulch materials to sub plots. Results showed that time of irrigation and different mulch materials had significant effect on plant characters, yield and yield components of wheat. Two irrigations given at CRI + flowering stage resulted with significantly higher plant height, number of spikelets spike-1, number of grains spike-1, 1000- grain weight, grain yield, straw yield and harvest index over one irrigation and control plots. Among mulch materials, black plastic mulch resulted with significantly higher grain yield of wheat. The highest grains (4.15 t ha-1) and straw yields (4.25 t ha-1) were obtained with two irrigations at CRI and flowering stage with black plastic mulch for achieving higher productivity. Bangladesh Agron. J. 2018, 21(1): 71-76
在达卡Sher-e-Bangla农业大学的农学场进行了一项实验，以了解2015-2016年小麦（变种BARI Gom 27）受灌溉时间和不同覆盖材料的影响。四个灌溉水平，即对照，CRI（冠根起始）阶段一次灌溉，开花阶段一次浇灌，CRI+开花阶段各两次灌溉；以对照、稻草、稻壳和地膜四种不同的覆盖材料为处理变量。试验采用三次重复的分块设计，将灌溉分配给主地块，将覆盖材料分配给子地块。结果表明，灌溉时间和不同覆盖材料对小麦的植株性状、产量和产量构成有显著影响。CRI+开花期两次灌溉的株高、小穗穗数-1、穗粒数-1、粒重、籽粒产量、秸秆产量和收获指数均显著高于一次灌溉和对照。在覆盖材料中，黑色地膜显著提高了小麦的产量。在CRI和开花期用黑色地膜进行两次灌溉，获得了最高的谷物产量（4.15 t ha-1）和秸秆产量（4.25 t ha-1。孟加拉国Agron。J.2018，21（1）：71-76
{"title":"Effect of Irrigation and Mulch Materials on Growth and Yield of Wheat","authors":"S. Rummana, A. Amin, Islam, Gm Faruk","doi":"10.3329/baj.v21i1.39362","DOIUrl":"https://doi.org/10.3329/baj.v21i1.39362","url":null,"abstract":"An experiment was carried out in Agronomy field of Sher-e-Bangla Agricultural University, Dhaka to find out the performance of wheat (var. BARI Gom 27) as influenced by time of irrigation and different mulch materials during 2015-2016. Four levels of irrigation viz. control, one irrigation at CRI (crown root initiation) stage, one irrigation at flowering stage and two irrigations each at CRI + flowering stage; and four different mulch materials viz. control, rice straw, rice husk and plastic sheets were considered as treatment variables. The experiment was laid out in a split- plot design with three replications, assigning irrigation to main plot and mulch materials to sub plots. Results showed that time of irrigation and different mulch materials had significant effect on plant characters, yield and yield components of wheat. Two irrigations given at CRI + flowering stage resulted with significantly higher plant height, number of spikelets spike-1, number of grains spike-1, 1000- grain weight, grain yield, straw yield and harvest index over one irrigation and control plots. Among mulch materials, black plastic mulch resulted with significantly higher grain yield of wheat. The highest grains (4.15 t ha-1) and straw yields (4.25 t ha-1) were obtained with two irrigations at CRI and flowering stage with black plastic mulch for achieving higher productivity. \u0000Bangladesh Agron. J. 2018, 21(1): 71-76","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3329/baj.v21i1.39362","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49423223","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 executed at the Agronomy researchfield of Sher-e-Bangla Agricultural University, Dhaka-1207, during the period from November, 2015 to March, 2016 to study the effects of fertilizer management of different combinations of inorganic and organic fertilizers on growth, yield attributes and yield of soybean (var. BARI Soybean 6). The treatment combinations wereT0= Control, T1= fertilization at recommended fertilizer dose (RFD - urea 50 kg ha-1, TSP 150 kg ha-1, MoP 100 kgha-1, gypsum 80 kg ha-1 and boron 500 kg ha-1), T2= Bio-fertilizer + 50% RFD, T3= Biofertilizer + 75% RFD, T4= Mixed fertilizer + 50% RFD, T5= Mixed fertilizer + 75% RFD, T6= Vermi-compost + 50% RFD, T7= Vermicompost + 75% RFD, T8= Poultry litter + 50% RFD and T9= Poultry litter + 75% RFD. Results indicated that application of fertilizer at recommended dose, vermi-compost + 75% RFD and poultry litter + 75% RFD produced higher grain yield 2053, 2073 and 2166 kg ha-1, respectively over control. It was also observed thatconsidering the sustainable yield and environment friendly,poultry litter + 75% RFD (T9) and vermi-compost + 75% RFD (T7) couldbe promising for soybean cultivation. Bangladesh Agron. J. 2018, 21(1): 77-81
本试验于2015年11月至2016年3月在达卡-1207 Sher-e-Bangla农业大学农学研究场进行，研究了不同无机肥和有机肥组合的肥料管理对大豆（var.BARI大豆6号）生长、产量特性和产量的影响。处理组合为T0=对照，T1=按推荐肥料剂量施肥（RFD-尿素50 kg ha-1，TSP 150 kg ha-1、MoP 100 kg ha-1，石膏80 kg ha-1和硼500 kg ha-1），T2=生物肥料+50%RFD，T3=生物肥料+75%RFD，T4=混合肥料+50%RF D，T5=混合肥料+75%RF D，T6=Vermi堆肥+50%RFD，T8=家禽粪便+50%RFD，T9=家禽粪便+75%RFD。结果表明，施用推荐剂量的肥料、蚯蚓堆肥+75%的RFD和家禽粪便+75%的RF分别比对照增产2053、2073和2166kg ha-1。研究还表明，从可持续产量和环境友好的角度考虑，家禽粪便+75%RFD（T9）和蚯蚓堆肥+75%RFD（T7）有可能用于大豆种植。孟加拉国Agron。J.2018，21（1）：77-81
{"title":"Influence of Inorganic and Organic Fertilizers on Growth and Yield of Soybean","authors":"A. Mamia, A. Amin, T. Roy, Gm Faruk","doi":"10.3329/baj.v21i1.39363","DOIUrl":"https://doi.org/10.3329/baj.v21i1.39363","url":null,"abstract":"The experiment was executed at the Agronomy researchfield of Sher-e-Bangla Agricultural University, Dhaka-1207, during the period from November, 2015 to March, 2016 to study the effects of fertilizer management of different combinations of inorganic and organic fertilizers on growth, yield attributes and yield of soybean (var. BARI Soybean 6). The treatment combinations wereT0= Control, T1= fertilization at recommended fertilizer dose (RFD - urea 50 kg ha-1, TSP 150 kg ha-1, MoP 100 kgha-1, gypsum 80 kg ha-1 and boron 500 kg ha-1), T2= Bio-fertilizer + 50% RFD, T3= Biofertilizer + 75% RFD, T4= Mixed fertilizer + 50% RFD, T5= Mixed fertilizer + 75% RFD, T6= Vermi-compost + 50% RFD, T7= Vermicompost + 75% RFD, T8= Poultry litter + 50% RFD and T9= Poultry litter + 75% RFD. Results indicated that application of fertilizer at recommended dose, vermi-compost + 75% RFD and poultry litter + 75% RFD produced higher grain yield 2053, 2073 and 2166 kg ha-1, respectively over control. It was also observed thatconsidering the sustainable yield and environment friendly,poultry litter + 75% RFD (T9) and vermi-compost + 75% RFD (T7) couldbe promising for soybean cultivation. \u0000Bangladesh Agron. J. 2018, 21(1): 77-81","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3329/baj.v21i1.39363","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46901607","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}
An experiment was carried out at the Agronomy Field of Sher-e-Bangla Agricultural University, Dhaka during the period from March to June 2015 (Kharif-I season) to find out the effect of different manures along with inorganic fertilizers on yield and yield traits of mungbean varieties. The experiment consisted of two factors: factor A: five levels of manures along with inorganic fertilizers [ T0 = Control (no fertilizer or manure), T1 = Recommended dose of fertilizer (R) (45 kg urea ha-1 + 100 kg TSP ha-1 + 58 kg MoP ha-1), T2 = R + cowdung (3 t ha-1), T3 = R + poultry manure (2 t ha-1), T4 = R + vermicompost (2.5 t ha-1)] and factor B: two mungbean varieties; (V1 = BARI Mung 5 and V2 = BARI Mung 6). The experiment was laid out in split- plot design with three replications. The effect of manures along with recommended inorganic fertilizers on yield and yield traits were found significant. The maximum grain yield (1.53 t ha-1) and maximum stover yield (1.88 t ha-1) was recorded from T4 treatment. Mungbean variety had also significant influence on yield and yield traits. The maximum seed yield (1.58 t ha-1) was obtained from var. BARI Mung 6) but Maximum stover yield (1.91 t ha-1) was obtained from var. BARI Mung 5). The combined effects of manures along with recommended inorganic fertilizers and variety were found statically significant on yield and yield traits. The maximum seed yield (2.01 t ha-1) and maximum stover yield (2.61 t ha-1) was recorded from T4V2. There were positive correlations of seed yield with different yield components. It was comparatively stronger correlations in BARI Mung 5 and weaker in BARI Mung 6. So, var. BARI Mung 6 performed the best result with the application of vermi-compost @ 2.5 t ha-1 with recommended dose of fertilizer.Bangladesh Agron. J. 2017, 20(2): 115-122
本试验于2015年3 - 6月(kharifi季)在达卡Sher-e-Bangla农业大学农艺学大田进行，研究不同肥料配合无机肥料对绿豆品种产量及产量性状的影响。试验包括2个因子:因子A: 5个水平的肥料加无机肥料[T0 =对照(不施肥或不施肥)，T1 =肥料推荐用量(R) (45 kg尿素hm -1 + 100 kg TSP hm -1 + 58 kg MoP hm -1)， T2 = R +牛粪(3 t hm -1)， T3 = R +禽粪(2 t hm -1)， T4 = R +蚯蚓堆肥(2.5 t hm -1)]，因子B: 2个绿豆品种;(V1 = BARI Mung 5, V2 = BARI Mung 6)。试验采用分区设计，3个重复。有机肥配施推荐无机肥料对产量和产量性状影响显著。T4处理籽粒产量最高(1.53 t ha-1)，秸秆产量最高(1.88 t ha-1)。绿豆品种对产量和产量性状也有显著影响。品种BARI Mung 6的种子产量最高(1.58 t ha-1)，品种BARI Mung 5的秸秆产量最高(1.91 t ha-1)。肥料、推荐无机肥料和品种对产量和产量性状的综合影响具有统计学意义。T4V2的最高种子产量为2.01 t ha-1，最高秸秆产量为2.61 t ha-1。籽粒产量与各产量成分呈显著正相关。BARI Mung 5的相关性较强，BARI Mung 6的相关性较弱。因此，品种BARI Mung 6在施用2.5 t hm -1蚯蚓堆肥和推荐施肥剂量时效果最佳。孟加拉国阿格龙。[j] . 2017, 20(2): 115-122
{"title":"Effect of Manures with Fertilizers on Yield and Yield Traits of Mungbean (Vigna radiate L.)","authors":"M. Hossain, Islam","doi":"10.3329/BAJ.V20I2.37096","DOIUrl":"https://doi.org/10.3329/BAJ.V20I2.37096","url":null,"abstract":"An experiment was carried out at the Agronomy Field of Sher-e-Bangla Agricultural University, Dhaka during the period from March to June 2015 (Kharif-I season) to find out the effect of different manures along with inorganic fertilizers on yield and yield traits of mungbean varieties. The experiment consisted of two factors: factor A: five levels of manures along with inorganic fertilizers [ T0 = Control (no fertilizer or manure), T1 = Recommended dose of fertilizer (R) (45 kg urea ha-1 + 100 kg TSP ha-1 + 58 kg MoP ha-1), T2 = R + cowdung (3 t ha-1), T3 = R + poultry manure (2 t ha-1), T4 = R + vermicompost (2.5 t ha-1)] and factor B: two mungbean varieties; (V1 = BARI Mung 5 and V2 = BARI Mung 6). The experiment was laid out in split- plot design with three replications. The effect of manures along with recommended inorganic fertilizers on yield and yield traits were found significant. The maximum grain yield (1.53 t ha-1) and maximum stover yield (1.88 t ha-1) was recorded from T4 treatment. Mungbean variety had also significant influence on yield and yield traits. The maximum seed yield (1.58 t ha-1) was obtained from var. BARI Mung 6) but Maximum stover yield (1.91 t ha-1) was obtained from var. BARI Mung 5). The combined effects of manures along with recommended inorganic fertilizers and variety were found statically significant on yield and yield traits. The maximum seed yield (2.01 t ha-1) and maximum stover yield (2.61 t ha-1) was recorded from T4V2. There were positive correlations of seed yield with different yield components. It was comparatively stronger correlations in BARI Mung 5 and weaker in BARI Mung 6. So, var. BARI Mung 6 performed the best result with the application of vermi-compost @ 2.5 t ha-1 with recommended dose of fertilizer.Bangladesh Agron. J. 2017, 20(2): 115-122","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45444041","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 field experiment was conducted at the research field of Agronomy Department of Bangabandhu Sheikh Mujibur Rahman Agricultural University during Aman season of 2014. Twenty four day old seedlings were transplanted in the main filed in a randomized complete block design with three replications. The advanced rice line BU- 9958-40-5-1 was compared with BRRI dhan56, BRRI dhan57, Binadhan-7 and BU dhan1. Results showed that rice var. BRRI dhan57 matured earlier [81 days after transplanting (DAT)] while the advanced line took the maximum days (90 DAT) to mature in the field. Although the tallest plant (113.80 cm) was observed in BRRI dhan56 but tiller number (12.22), leaf area index (4.67) and dry matter production (398.69 g m-2) were the highest in advanced line BU-9958-40-5-1. The advanced line produced the highest grain yield (5.98 t ha-1) coupled with the highest biological yield (11.55 t ha-1) but failed to show the highest harvest index. Thus it seemed that this line was not much efficient in converting total dry matter into grain which is the ultimate target of crop production. Therefore, this result can help physiologists and breeders to determine physiological and morphological features of the advanced line BU-9958-40- 5-1 that contribute the most to increasing dry matter partition into grain.Bangladesh Agron. J. 2017, 20(2): 27-36
2014年阿曼季节，在Bangabandhu Sheikh Mujibur Rahman农业大学农学系研究场进行了田间试验。24日龄苗采用完全随机区组设计，3个重复移栽于主田。将先进水稻品系BU- 9958-40-5-1与BRRI dhan56、BRRI dhan57、Binadhan-7和BU dhan1进行比较。结果表明，水稻品种BRRI dhan57成熟较早(移栽后81天)，而先期系在田间成熟时间最长(90天)。BRRI dhan56植株最高(113.80 cm)，但分蘖数(12.22)、叶面积指数(4.67)和干物质产量(398.69 g - m-2)以BU-9958-40-5-1最高。先进系籽粒产量最高(5.98 t hm -1)，生物产量最高(11.55 t hm -1)，但收获指数未能达到最高。因此，这一品系在将总干物质转化为粮食方面似乎效率不高，而粮食是作物生产的最终目标。因此，这一结果可以帮助生理学家和育种家确定高级系BU-9958-40- 5-1对增加干物质分配到籽粒中贡献最大的生理和形态特征。孟加拉国阿格龙。[j] . 2017, 20(2): 27-36
{"title":"Growth and Productivity of Short Duration Aman Rice Genotype","authors":"Hasan, Ar Khan, M. Islam, M. Haque","doi":"10.3329/BAJ.V20I2.37085","DOIUrl":"https://doi.org/10.3329/BAJ.V20I2.37085","url":null,"abstract":"A field experiment was conducted at the research field of Agronomy Department of Bangabandhu Sheikh Mujibur Rahman Agricultural University during Aman season of 2014. Twenty four day old seedlings were transplanted in the main filed in a randomized complete block design with three replications. The advanced rice line BU- 9958-40-5-1 was compared with BRRI dhan56, BRRI dhan57, Binadhan-7 and BU dhan1. Results showed that rice var. BRRI dhan57 matured earlier [81 days after transplanting (DAT)] while the advanced line took the maximum days (90 DAT) to mature in the field. Although the tallest plant (113.80 cm) was observed in BRRI dhan56 but tiller number (12.22), leaf area index (4.67) and dry matter production (398.69 g m-2) were the highest in advanced line BU-9958-40-5-1. The advanced line produced the highest grain yield (5.98 t ha-1) coupled with the highest biological yield (11.55 t ha-1) but failed to show the highest harvest index. Thus it seemed that this line was not much efficient in converting total dry matter into grain which is the ultimate target of crop production. Therefore, this result can help physiologists and breeders to determine physiological and morphological features of the advanced line BU-9958-40- 5-1 that contribute the most to increasing dry matter partition into grain.Bangladesh Agron. J. 2017, 20(2): 27-36","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3329/BAJ.V20I2.37085","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44093059","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}
Four wheat genotypes (BARI Gom 25, E 28, BAW 1170, BAW1140) were grown under well water and water deficit stress condition to evaluate the sensitivity of physiological traits of wheat resulting reduced grain yield under water deficit stress. Wheat genotypes showed greater stability of flag leaf chlorophyll, greater ability to retain water in leaf, higher level of proline in flag leaf and kernel, higher level of soluble sugar in flag leaf and greater ability to keep the canopy cooler compared to sensitive genotype under water deficit condition. Greater spike dry matter accumulation at peak, longer grain growth duration, better yield components such as spikes m-2 and grains spike-1 under water deficit stress contributed to better tolerance of BARI Gom 25, E 28 and BAW 1170. The order of tolerance based on grain yield was BAW 1170 > BARI Gom 25 > E 28 > BAW 1140 and the order of tolerance based on above ground biological yield was BAW 1170 > E 28 > BARI Gom 25 > BAW 1140.Bangladesh Agron. J. 2017, 20(2): 37-52
{"title":"Physiological Evaluation of Wheat Genotypes for Tolerance to Water Deficit Stress","authors":"Raña, M. Hasan, M. Bahadur, Islam","doi":"10.3329/BAJ.V20I2.37086","DOIUrl":"https://doi.org/10.3329/BAJ.V20I2.37086","url":null,"abstract":"Four wheat genotypes (BARI Gom 25, E 28, BAW 1170, BAW1140) were grown under well water and water deficit stress condition to evaluate the sensitivity of physiological traits of wheat resulting reduced grain yield under water deficit stress. Wheat genotypes showed greater stability of flag leaf chlorophyll, greater ability to retain water in leaf, higher level of proline in flag leaf and kernel, higher level of soluble sugar in flag leaf and greater ability to keep the canopy cooler compared to sensitive genotype under water deficit condition. Greater spike dry matter accumulation at peak, longer grain growth duration, better yield components such as spikes m-2 and grains spike-1 under water deficit stress contributed to better tolerance of BARI Gom 25, E 28 and BAW 1170. The order of tolerance based on grain yield was BAW 1170 > BARI Gom 25 > E 28 > BAW 1140 and the order of tolerance based on above ground biological yield was BAW 1170 > E 28 > BARI Gom 25 > BAW 1140.Bangladesh Agron. J. 2017, 20(2): 37-52","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3329/BAJ.V20I2.37086","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49369160","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 a net house of Sher-e-Bangla Agricultural University,(23°35'N latitude and 90°35'E longitude) Dhaka, Bangladesh during November - May to study the effect of fertilizer and manure on the yield of boro rice and movement of nutrients through undisturbed soil columns. The experiment consists of 2 factors, i.e. soils and fertilizer plus manure. Two soils (S1= SAU Soil and S2= Sonargaon Soil) with 4 levels of fertilizer plus manure, as T0: Control, T1: 100% N120P20K45S20 (Recommended dose), T2: 50% NPKS + 5 t ha−1 cowdung, T3: 50% NPKS + 2.1 t ha−1 poultry manure were imposed during boro (winter) season. Boro rice (BRRI dhan29) was grown in the soil cores, and fertilizer and manure treatments were applied to the soils. Higher and statistically similar grain yields of boro rice were found from T1, T2, and T3 fertilizer treatments. The highest grain yield was found where 50% NPKS + 5 t ha-1 cowdung were used in the Sonargaon soil. Higher grain N, P and K concentrations were obtained in the treatment combination where fertilizer plus manure were applied in two soils. Higher leachate N, P and K concentrations were found in 100% chemical fertilizer treatment. The N leaching increased up to 45 DAT and then declined while the P and K leaching increased up to 35 DAT and then decreased. Higher pH values were found in the 10-20cm depth of post-harvest soils in comparison to 0-10 cm. The higher pH values were found in soils where 50% NPKS + 2.1 t ha−1 poultry manure applied. The level of P more increased in the depths of 0-10 cm of SAU soil where fertilizer or fertilizer plus manure were applied and the P concentrations more increased in the depth of 10-20 cm where fertilizer plus manure were applied in SAU soil. The level of S more increased in the depths of 0-10 cm and 10-20 cm of S2T2 and S2T3 treatment combination where fertilizer plus manure applied in Sonargaon soil. Similar levels of N and K concentrations were observed in the initial and post-harvest soils.Bangladesh Agron. J. 2017, 20(2): 123-133
{"title":"Effect of Fertilizer and Manure on the Movement of NPKS in Rice Soils of Madhupur Tract and Meghna River Floodplain","authors":"Ma Khan, M. Islam, A. Bari, S. Akter","doi":"10.3329/BAJ.V20I2.37097","DOIUrl":"https://doi.org/10.3329/BAJ.V20I2.37097","url":null,"abstract":"The experiment was conducted in a net house of Sher-e-Bangla Agricultural University,(23°35'N latitude and 90°35'E longitude) Dhaka, Bangladesh during November - May to study the effect of fertilizer and manure on the yield of boro rice and movement of nutrients through undisturbed soil columns. The experiment consists of 2 factors, i.e. soils and fertilizer plus manure. Two soils (S1= SAU Soil and S2= Sonargaon Soil) with 4 levels of fertilizer plus manure, as T0: Control, T1: 100% N120P20K45S20 (Recommended dose), T2: 50% NPKS + 5 t ha−1 cowdung, T3: 50% NPKS + 2.1 t ha−1 poultry manure were imposed during boro (winter) season. Boro rice (BRRI dhan29) was grown in the soil cores, and fertilizer and manure treatments were applied to the soils. Higher and statistically similar grain yields of boro rice were found from T1, T2, and T3 fertilizer treatments. The highest grain yield was found where 50% NPKS + 5 t ha-1 cowdung were used in the Sonargaon soil. Higher grain N, P and K concentrations were obtained in the treatment combination where fertilizer plus manure were applied in two soils. Higher leachate N, P and K concentrations were found in 100% chemical fertilizer treatment. The N leaching increased up to 45 DAT and then declined while the P and K leaching increased up to 35 DAT and then decreased. Higher pH values were found in the 10-20cm depth of post-harvest soils in comparison to 0-10 cm. The higher pH values were found in soils where 50% NPKS + 2.1 t ha−1 poultry manure applied. The level of P more increased in the depths of 0-10 cm of SAU soil where fertilizer or fertilizer plus manure were applied and the P concentrations more increased in the depth of 10-20 cm where fertilizer plus manure were applied in SAU soil. The level of S more increased in the depths of 0-10 cm and 10-20 cm of S2T2 and S2T3 treatment combination where fertilizer plus manure applied in Sonargaon soil. Similar levels of N and K concentrations were observed in the initial and post-harvest soils.Bangladesh Agron. J. 2017, 20(2): 123-133","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3329/BAJ.V20I2.37097","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49015661","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 study was conducted at the University of KwaZulu-Natal (29o37’ S, 30o23’ E) from May to November 2012 under controlled environment conditions with three water regimes namely: well watered controls, mild water stress to -1.4 MPa and severe water stress to -2.0 MPa, at the V4 (28 DAS) and V5 stages (35 DAS). Severe stress significantly reduced no. of nodule and root mass, leaf area, shoot dry mass and uptake, regardless of the stage. Mild stress on the other hand had little effect on this parameter as plants recovered on re-watering, to attain values similar to the control treatments. The V4 and V5 stages can recover from mild stress, but severe stress at both growth stages reduces nodulation and nitrogen uptake and this can lead to reduction in production potential of soybean.Bangladesh Agron. J. 2017, 20(2): 11-16
{"title":"Effect of Early Water Deficits on Nodulation and Nitrogen Content of Inoculated Soybean","authors":"J. Adjetey, Bng Nxumalo","doi":"10.3329/BAJ.V20I2.37083","DOIUrl":"https://doi.org/10.3329/BAJ.V20I2.37083","url":null,"abstract":"The study was conducted at the University of KwaZulu-Natal (29o37’ S, 30o23’ E) from May to November 2012 under controlled environment conditions with three water regimes namely: well watered controls, mild water stress to -1.4 MPa and severe water stress to -2.0 MPa, at the V4 (28 DAS) and V5 stages (35 DAS). Severe stress significantly reduced no. of nodule and root mass, leaf area, shoot dry mass and uptake, regardless of the stage. Mild stress on the other hand had little effect on this parameter as plants recovered on re-watering, to attain values similar to the control treatments. The V4 and V5 stages can recover from mild stress, but severe stress at both growth stages reduces nodulation and nitrogen uptake and this can lead to reduction in production potential of soybean.Bangladesh Agron. J. 2017, 20(2): 11-16","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3329/BAJ.V20I2.37083","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69447085","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}
An experiment was conducted to evaluate seedling growth of wheat under saline condition. Thirty wheat genotypes were grown in trays containing different levels of salinity (Control, 6 and 12 dSm-1) during October to December, 2013. Seedling emergence index, shoot and root length, shoot and root dry weight were found to be reduced with the increases of soil salinity level but the degree of reduction were not similar for all wheat genotypes. Salt tolerance index (STI) also indicated a wide difference in salt tolerance among the wheat genotypes. Sourav, Gourav, Shatabdi, BAW 1185, BAW 1186, BAW 1187, BAW 1189 and BAW 1193 were more salt tolerance while BAW 1177, BAW 1190 and BAW 1198 showed greater salt sensitivity than the other wheat genotypes at 6 dS m-1. However, at 12 dS m-1, Sourav, Gourav, Shatabdi, Sufi and BAW 1184 showed more salt tolerance and BAW 1183, BAW 1190, BAW 1192, BAW 1194 and BAW 97 provided greater stress sensitivity among the testing wheat genotypes. Considering both saline stress Sourav, Gourav and Shatabdi were found to be salt tolerant and BAW 1190 was saline sensitive wheat genotypes.Bangladesh Agron. J. 2017, 20(2): 53-66
{"title":"Seedling Growth of Wheat as Affected by Soil Salinity","authors":"E. Sultana, M. Hasan, S. Sikder, Rana, F. Alam","doi":"10.3329/BAJ.V20I2.37087","DOIUrl":"https://doi.org/10.3329/BAJ.V20I2.37087","url":null,"abstract":"An experiment was conducted to evaluate seedling growth of wheat under saline condition. Thirty wheat genotypes were grown in trays containing different levels of salinity (Control, 6 and 12 dSm-1) during October to December, 2013. Seedling emergence index, shoot and root length, shoot and root dry weight were found to be reduced with the increases of soil salinity level but the degree of reduction were not similar for all wheat genotypes. Salt tolerance index (STI) also indicated a wide difference in salt tolerance among the wheat genotypes. Sourav, Gourav, Shatabdi, BAW 1185, BAW 1186, BAW 1187, BAW 1189 and BAW 1193 were more salt tolerance while BAW 1177, BAW 1190 and BAW 1198 showed greater salt sensitivity than the other wheat genotypes at 6 dS m-1. However, at 12 dS m-1, Sourav, Gourav, Shatabdi, Sufi and BAW 1184 showed more salt tolerance and BAW 1183, BAW 1190, BAW 1192, BAW 1194 and BAW 97 provided greater stress sensitivity among the testing wheat genotypes. Considering both saline stress Sourav, Gourav and Shatabdi were found to be salt tolerant and BAW 1190 was saline sensitive wheat genotypes.Bangladesh Agron. J. 2017, 20(2): 53-66","PeriodicalId":30957,"journal":{"name":"Bangladesh Agronomy Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3329/BAJ.V20I2.37087","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42518599","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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