Pub Date : 2020-09-29DOI: 10.3329/agric.v18i1.49465
A. Mahmud, M. Alam, M. Islam, M. Molla, M. Ali
Increasing system productivity in a planned way is an important base for attaining food security, where bringing marginal land like Charland under intensive crop cultivation is highly desirable. The field trial was conducted in the Charland of the Jamuna River under Saghataupazilla of Gaibandha during 2017- 18 & 2018-19 to increase the productivity and profitability through the development of three crops-based improved cropping patterns instead of the local practice (double-crop). Three crops based improved cropping pattern namely Millet (BARI Kaon-2)-Jute (O-9897)-T. Aman (Gainja) was compared with the existing cropping pattern of Millet (Local)-Fallow-T. Aman (Gainja). The experiment was laid out in six dispersed replications maintaining RCB design. The introduced improved cropping pattern produced the higher system productivity based on rice equivalent yield, REY (12.95 t ha-1), than the existing cropping pattern (4.20 t ha-1), which is three times higher than the existing pattern. Total field duration and turnaround time were 323 and 42 days, respectively in improved pattern and 215 and 150 days, respectively in the existing pattern, which revealed that 108 days more could be made productive through the introduction of improved cropping pattern. The alternate pattern increased production efficiency and land-use efficiency by 35% and 30%, respectively than that of the existing cropping system. The gross margin was also three times higher in the improved cropping pattern (1, 41,600 Tk ha-1 yr-1) compared to the farmers’ existing cropping pattern (38,350 Tk ha-1 yr-1). The marginal benefit-cost ratio (MBCR) was calculated 2.44 in an improved cropping pattern over the existing cropping pattern. The inclusion of an extra one crop (Jute) in the existing cropping pattern and replacement of the local millet variety by high yielding variety (BARI Kaon-2) could play a significant role to increase the system productivity as well as profitability in the Charland of Saghata, Gaibandha. The Agriculturists 2020; 18(1) 129-136
有计划地提高系统生产力是实现粮食安全的重要基础，在粮食安全方面，将Charland这样的边际土地纳入集约化作物种植是非常可取的。该田间试验于2017- 18年和2018-19年在Gaibandha Saghataupazilla下的Jamuna河的Charland进行，旨在通过开发三种基于作物的改良种植模式来提高生产力和盈利能力，而不是当地的做法(双重作物)。以谷子(BARI Kaon-2)-黄麻(O-9897)-T三种作物为基础的改良种植模式。将Aman (Gainja)与现有的Millet (Local)- flow - t种植模式进行了比较。哈曼(Gainja)。试验分为6个分散重复，维持RCB设计。以水稻当量产量REY (12.95 t ha-1)计算，改良种植模式的系统生产力比现有种植模式(4.20 t ha-1)高3倍。改良模式的总田期和周转时间分别为323天和42天，现有模式的总田期和周转时间分别为215天和150天，表明改良模式可增加108天的产量。与现有种植方式相比，交替种植方式的生产效率和土地利用效率分别提高了35%和30%。改良种植模式的毛利率(141600千塔卡/年)也比农民现有的种植模式(38350千塔卡/年)高出3倍。改良种植模式与现有种植模式的边际效益成本比(MBCR)为2.44。在现有的种植模式中增加一种作物(黄麻)，并用高产品种(BARI Kaon-2)取代当地的谷子品种，可以在提高系统生产力和盈利能力方面发挥重要作用。农业学家2020;18 (1) 129 - 136
{"title":"Millet-Jute-T. Aman Cropping Pattern for Increasing System Productivity in the Active Brahmaputra-Jamuna Floodplain Chars","authors":"A. Mahmud, M. Alam, M. Islam, M. Molla, M. Ali","doi":"10.3329/agric.v18i1.49465","DOIUrl":"https://doi.org/10.3329/agric.v18i1.49465","url":null,"abstract":"Increasing system productivity in a planned way is an important base for attaining food security, where bringing marginal land like Charland under intensive crop cultivation is highly desirable. The field trial was conducted in the Charland of the Jamuna River under Saghataupazilla of Gaibandha during 2017- 18 & 2018-19 to increase the productivity and profitability through the development of three crops-based improved cropping patterns instead of the local practice (double-crop). Three crops based improved cropping pattern namely Millet (BARI Kaon-2)-Jute (O-9897)-T. Aman (Gainja) was compared with the existing cropping pattern of Millet (Local)-Fallow-T. Aman (Gainja). The experiment was laid out in six dispersed replications maintaining RCB design. The introduced improved cropping pattern produced the higher system productivity based on rice equivalent yield, REY (12.95 t ha-1), than the existing cropping pattern (4.20 t ha-1), which is three times higher than the existing pattern. Total field duration and turnaround time were 323 and 42 days, respectively in improved pattern and 215 and 150 days, respectively in the existing pattern, which revealed that 108 days more could be made productive through the introduction of improved cropping pattern. The alternate pattern increased production efficiency and land-use efficiency by 35% and 30%, respectively than that of the existing cropping system. The gross margin was also three times higher in the improved cropping pattern (1, 41,600 Tk ha-1 yr-1) compared to the farmers’ existing cropping pattern (38,350 Tk ha-1 yr-1). The marginal benefit-cost ratio (MBCR) was calculated 2.44 in an improved cropping pattern over the existing cropping pattern. The inclusion of an extra one crop (Jute) in the existing cropping pattern and replacement of the local millet variety by high yielding variety (BARI Kaon-2) could play a significant role to increase the system productivity as well as profitability in the Charland of Saghata, Gaibandha. \u0000The Agriculturists 2020; 18(1) 129-136","PeriodicalId":322702,"journal":{"name":"The Agriculturists","volume":"268 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116051154","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}
Pub Date : 2020-09-29DOI: 10.3329/agric.v18i1.49464
Anusree Ghosh, B. Biswas, Md. Arifuzzaman
Tossa jute (Corchorus olitorius L.) is the most important commercial crop of Bangladesh. Fifty-six genotypes of F2 generation were raised at Breeding Research Farm, Hajee Mohammad Danesh Science and Technology University, Dinajpur from April 2018 to August 2019 from the parental lines O-9897, O-795, JRO-524, Acc. 2381, Acc. 3423, Acc. 3438, Acc. 3533 and Acc. 3860. The parameters, plant height (m), base diameter (mm), green bark thickness (mm), green bark weight without leaves (g), stick weight (g), fiber strength (MPa), days to flowering, days to maturity and fiber weight/stick varied significantly among the genotypes. Significant productivity was found from Acc. 3860. Green bark weight without leaves exhibited highest genotypic and phenotypic co-efficient of variation followed by fiber weight and stick weight. The highest genetic advance as percentage of mean (44.38%) was estimated against green bark weight without leaves suggest it as a prime character that enhanced fiber and stick yields. The Acc. 3860 resulted high production of fiber in hybrids. Considering the studied characters, the F2-generation of Acc. 3860 is comparatively batter than others. The research findings suggested that the F2-generation of Accession Acc. 3860 may produce desired segregates and therefore demands farther research in different environmental conditions and field trail.
{"title":"Variability and Character Association Study in Morphological Traits of Tossa Jute (Corchorus olitorius L.)","authors":"Anusree Ghosh, B. Biswas, Md. Arifuzzaman","doi":"10.3329/agric.v18i1.49464","DOIUrl":"https://doi.org/10.3329/agric.v18i1.49464","url":null,"abstract":"Tossa jute (Corchorus olitorius L.) is the most important commercial crop of Bangladesh. Fifty-six genotypes of F2 generation were raised at Breeding Research Farm, Hajee Mohammad Danesh Science and Technology University, Dinajpur from April 2018 to August 2019 from the parental lines O-9897, O-795, JRO-524, Acc. 2381, Acc. 3423, Acc. 3438, Acc. 3533 and Acc. 3860. The parameters, plant height (m), base diameter (mm), green bark thickness (mm), green bark weight without leaves (g), stick weight (g), fiber strength (MPa), days to flowering, days to maturity and fiber weight/stick varied significantly among the genotypes. Significant productivity was found from Acc. 3860. Green bark weight without leaves exhibited highest genotypic and phenotypic co-efficient of variation followed by fiber weight and stick weight. The highest genetic advance as percentage of mean (44.38%) was estimated against green bark weight without leaves suggest it as a prime character that enhanced fiber and stick yields. The Acc. 3860 resulted high production of fiber in hybrids. Considering the studied characters, the F2-generation of Acc. 3860 is comparatively batter than others. The research findings suggested that the F2-generation of Accession Acc. 3860 may produce desired segregates and therefore demands farther research in different environmental conditions and field trail.","PeriodicalId":322702,"journal":{"name":"The Agriculturists","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121404483","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}
Pub Date : 2020-09-29DOI: 10.3329/agric.v18i1.49456
Md. Hafizur Rahman, M. Islam, F. Aminuzzaman, A. Latif, H. Rahman
A field survey was conducted to find out the incidence of foot and root rot of betel vine caused by Sclerotium rolfsii under prevailing environmental condition in major betel vine growing areas of Bangladesh. The areas were Gouranadi, Kaligonj, Mirpur, Mohanpur and Sitakunda Upazila under the district of Barisal, Jhenaidah, Kushtia, Rajshahi and Chittagong, respectively. The incidence of foot and root rot disease varied remarkably and ranged from 4.53 to 15.46% in different upzillas. The maximum incidence of 15.46% was recorded from Gouranadi where soil pH was 5.4, ambient temperature was around 32 o C, relative humidity was 82% and light intensity was 53x100 lux. The lowest incidence of the disease was observed as 4.53% from Sitakunda where soil pH was 6.6, ambient temperature was 28 o C, RH was 72% and light intensity was 74x100lux. The incidence of foot and root rot of betel vine was high in the areas where soil pH and light intensity were low and temperature and relative humidity were high.
{"title":"Survey on Foot and Root Rot Disease of Betel Vine (Piper betle L.) under Prevailing Environmental Condition","authors":"Md. Hafizur Rahman, M. Islam, F. Aminuzzaman, A. Latif, H. Rahman","doi":"10.3329/agric.v18i1.49456","DOIUrl":"https://doi.org/10.3329/agric.v18i1.49456","url":null,"abstract":"A field survey was conducted to find out the incidence of foot and root rot of betel vine caused by Sclerotium rolfsii under prevailing environmental condition in major betel vine growing areas of Bangladesh. The areas were Gouranadi, Kaligonj, Mirpur, Mohanpur and Sitakunda Upazila under the district of Barisal, Jhenaidah, Kushtia, Rajshahi and Chittagong, respectively. The incidence of foot and root rot disease varied remarkably and ranged from 4.53 to 15.46% in different upzillas. The maximum incidence of 15.46% was recorded from Gouranadi where soil pH was 5.4, ambient temperature was around 32 o C, relative humidity was 82% and light intensity was 53x100 lux. The lowest incidence of the disease was observed as 4.53% from Sitakunda where soil pH was 6.6, ambient temperature was 28 o C, RH was 72% and light intensity was 74x100lux. The incidence of foot and root rot of betel vine was high in the areas where soil pH and light intensity were low and temperature and relative humidity were high.","PeriodicalId":322702,"journal":{"name":"The Agriculturists","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134464620","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}
Pub Date : 2020-09-29DOI: 10.3329/agric.v18i1.49457
A. Chowdhury, Nurul Huda Al Mamun, K. Islam, M. Farazi
Field and laboratory experiments were conducted at the Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, during boro season of 2015-2016 to determine the response of rice crop (BU Dhan 2) to different plant densities under different fertilizer levels. The variety was grown with three fertilizer levels viz. recommended (57-10-8-7-0.9 kg NPKSZn ha -1 ), 50% higher (114-2016-14-1.8 kg NPKSZn ha -1 ) and 50% lower (28.5-5-4-3.5-0.45 kg NPKSZn ha -1 ) than recommended level and three plant spacing (20 cm x 25 cm, 20 cm x 20 cm and 20 cm x 15 cm) representing wider, standard and closer plant densities. Nutrient uptake of the variety was higher at higher level of fertilizer and closer plant spacing. The highest grain yield 5.18 t ha -1 of the variety was associated with the highest nutrient uptake under higher dose of fertilizer at closer plant spacing. This treatment combination also showed the highest nitrogen (86.53 kg ha -1 ), phosphorus (9.85 kg ha -1 ), potassium (103.9 kg ha -1 ), sulphur (12.27 kg ha -1 ) and zinc uptake (265.76 g ha -1 ) of the variety, although nutrient use efficiency was higher at lower fertilizer level under wider plant density.
本研究于2015-2016年秋季在加济浦尔Bangabandhu Sheikh Mujibur Rahman农业大学进行了田间和室内试验，以确定不同施肥水平下水稻作物(BU Dhan 2)对不同种植密度的响应。施用3个施肥水平，即推荐水平(57-10-8-7-0.9 kg NPKSZn ha -1)、比推荐水平高50% (118 - 2016-14-18 -1.8 kg NPKSZn ha -1)和低50% (28.5-5-4-3.5-0.45 kg NPKSZn ha -1)， 3个株距(20 cm × 25 cm、20 cm × 20 cm和20 cm × 15 cm)，代表更宽、标准和更接近的植株密度。施肥量越大、株距越近，品种对养分的吸收率越高。株距越近、施肥量越大，籽粒产量最高(5.18 t ha -1)的品种养分吸收量最高。该组合对氮肥(86.53 kg ha -1)、磷(9.85 kg ha -1)、钾(103.9 kg ha -1)、硫(12.27 kg ha -1)和锌(265.76 g ha -1)的吸收也最高，但在较宽的植株密度下，较低的施肥量能提高养分利用效率。
{"title":"Determination of Nutrient Accumulation Pattern of New Aromatic Rice (Oryza sativa L.) as Influenced by Different Applied Fertilizers and Plant Spacing","authors":"A. Chowdhury, Nurul Huda Al Mamun, K. Islam, M. Farazi","doi":"10.3329/agric.v18i1.49457","DOIUrl":"https://doi.org/10.3329/agric.v18i1.49457","url":null,"abstract":"Field and laboratory experiments were conducted at the Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, during boro season of 2015-2016 to determine the response of rice crop (BU Dhan 2) to different plant densities under different fertilizer levels. The variety was grown with three fertilizer levels viz. recommended (57-10-8-7-0.9 kg NPKSZn ha -1 ), 50% higher (114-2016-14-1.8 kg NPKSZn ha -1 ) and 50% lower (28.5-5-4-3.5-0.45 kg NPKSZn ha -1 ) than recommended level and three plant spacing (20 cm x 25 cm, 20 cm x 20 cm and 20 cm x 15 cm) representing wider, standard and closer plant densities. Nutrient uptake of the variety was higher at higher level of fertilizer and closer plant spacing. The highest grain yield 5.18 t ha -1 of the variety was associated with the highest nutrient uptake under higher dose of fertilizer at closer plant spacing. This treatment combination also showed the highest nitrogen (86.53 kg ha -1 ), phosphorus (9.85 kg ha -1 ), potassium (103.9 kg ha -1 ), sulphur (12.27 kg ha -1 ) and zinc uptake (265.76 g ha -1 ) of the variety, although nutrient use efficiency was higher at lower fertilizer level under wider plant density.","PeriodicalId":322702,"journal":{"name":"The Agriculturists","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117141983","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}
Pub Date : 2020-09-29DOI: 10.3329/agric.v18i1.49461
M. Afrad, Akter, M. Haque, M. Zakaria
Traditionally, spices are important components used for preparation of everyday menu, especially for Bangladeshi. In this connection, Spices Research Center under Bangladesh Agricultural Research Institute (BARI) has been releasing new spices varieties but there is dearth of research on the adoption of these newly released spices varieties. Therefore, the present study aimed at to examine the extent of adoption of spices cultivation technology by the growers in Shibganj upazila under Bogura district. Data were collected from 90 household heads selected following proportionate random using a structured interview schedule. Major cultivating spices varieties which are noticed in the study area are BARI piaz1, BARI ada2, BARI holud5. Under the three major spices variety, 43.3 percent area was covered by small scale spices cultivation, 42.2 percent by medium scale and 14.5 percent was covered by large scale area of spices cultivation. Findings revealed that huge majority (80.0%) of the respondents had medium adoption of BARI piaz1 whereas almost all (93.3%) of them had medium adoption of BARI ada2. On the other hand, more than half (53.3%) of the respondents had low adoption of BARI holud5 whereas 40.0 percent of them had medium and 6.7 percent had high adoption of the same. Vital perceived benefits that attracted the respondents in spices cultivation were higher price, yield and quality of the technologies than those of previous. BARI holud5 was found more profitable (BCR 1.7) than BARI piaz1 (BCR 1.3) and BARI ada2 (BCR 1.3). Respondent farmers’ education, farm size, innovativeness, extension contact, knowledge on spices cultivation and annual family income showed significant and positive relationship with their adoption of spices technology.
{"title":"Adoption of Spices Cultivation Technology by the Growers in Shibganj Upazila under Bogura District of Bangladesh","authors":"M. Afrad, Akter, M. Haque, M. Zakaria","doi":"10.3329/agric.v18i1.49461","DOIUrl":"https://doi.org/10.3329/agric.v18i1.49461","url":null,"abstract":"Traditionally, spices are important components used for preparation of everyday menu, especially for Bangladeshi. In this connection, Spices Research Center under Bangladesh Agricultural Research Institute (BARI) has been releasing new spices varieties but there is dearth of research on the adoption of these newly released spices varieties. Therefore, the present study aimed at to examine the extent of adoption of spices cultivation technology by the growers in Shibganj upazila under Bogura district. Data were collected from 90 household heads selected following proportionate random using a structured interview schedule. Major cultivating spices varieties which are noticed in the study area are BARI piaz1, BARI ada2, BARI holud5. Under the three major spices variety, 43.3 percent area was covered by small scale spices cultivation, 42.2 percent by medium scale and 14.5 percent was covered by large scale area of spices cultivation. Findings revealed that huge majority (80.0%) of the respondents had medium adoption of BARI piaz1 whereas almost all (93.3%) of them had medium adoption of BARI ada2. On the other hand, more than half (53.3%) of the respondents had low adoption of BARI holud5 whereas 40.0 percent of them had medium and 6.7 percent had high adoption of the same. Vital perceived benefits that attracted the respondents in spices cultivation were higher price, yield and quality of the technologies than those of previous. BARI holud5 was found more profitable (BCR 1.7) than BARI piaz1 (BCR 1.3) and BARI ada2 (BCR 1.3). Respondent farmers’ education, farm size, innovativeness, extension contact, knowledge on spices cultivation and annual family income showed significant and positive relationship with their adoption of spices technology.","PeriodicalId":322702,"journal":{"name":"The Agriculturists","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125943731","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}
Pub Date : 2020-09-29DOI: 10.3329/agric.v18i1.49459
Md. Hafizur Rahman, M. Islam, F. Aminuzzaman, A. Latif, H. Rahman
The experiment was conducted during March, 2016 to March, 2017 in a baroj of experimental farm of Sher-e-Bangla Agricultural University, Dhaka. Thirteen betel vine cultivars designated as PB 001 through PB 013 were collected from different locations of Bangladesh and found remarkable variations in vegetative growth, morphological features, yield and yield attributes. The betel vine cultivars varied in vine elongation (37.46 – 50.34 cm per month), increase in internode length (6.75 – 10.08 cm per month) and vine girth (0.445 0.747 cm per year). The leaf length (17.13-27.35 cm), leaf breadth (8.33 16.20 cm), petiole length (4.83 -11.45 cm) and petiole breadth (0.47 0.28 cm) remarkably varied among the cultivars. Fresh weight of 100-petiole, 100-leaves, and dry matter content were 50.07 165.74 g, 289.38 565.25 g and 12.57 14.49%, respectively in different cultivars. Leaf number per meter vine (9.46 15.38) and leaf number per plant per year (50.16 78.44) were also varied among the cultivars. The highest annual per hectare yield was obtained from BARI Pan-1 (23.82 t) and PB 006 (23.46 t). Variations were also existed among the cultivars in vine colour, leaf colour, leaf shape, leaf tip, leaf softness and pungency of leaf of cultivars. No pungency of leaf was found in cultivars PB 006 (Misti pan). So, PB 006 (Misti pan) was seemed to be a better cultivar/ germplasm in respect of yield and quality of betel leaf.
{"title":"Physio-morphological Study of Betel Vine (Piper betle L.) Cultivars Available in Bangladesh","authors":"Md. Hafizur Rahman, M. Islam, F. Aminuzzaman, A. Latif, H. Rahman","doi":"10.3329/agric.v18i1.49459","DOIUrl":"https://doi.org/10.3329/agric.v18i1.49459","url":null,"abstract":"The experiment was conducted during March, 2016 to March, 2017 in a baroj of experimental farm of Sher-e-Bangla Agricultural University, Dhaka. Thirteen betel vine cultivars designated as PB 001 through PB 013 were collected from different locations of Bangladesh and found remarkable variations in vegetative growth, morphological features, yield and yield attributes. The betel vine cultivars varied in vine elongation (37.46 – 50.34 cm per month), increase in internode length (6.75 – 10.08 cm per month) and vine girth (0.445 0.747 cm per year). The leaf length (17.13-27.35 cm), leaf breadth (8.33 16.20 cm), petiole length (4.83 -11.45 cm) and petiole breadth (0.47 0.28 cm) remarkably varied among the cultivars. Fresh weight of 100-petiole, 100-leaves, and dry matter content were 50.07 165.74 g, 289.38 565.25 g and 12.57 14.49%, respectively in different cultivars. Leaf number per meter vine (9.46 15.38) and leaf number per plant per year (50.16 78.44) were also varied among the cultivars. The highest annual per hectare yield was obtained from BARI Pan-1 (23.82 t) and PB 006 (23.46 t). Variations were also existed among the cultivars in vine colour, leaf colour, leaf shape, leaf tip, leaf softness and pungency of leaf of cultivars. No pungency of leaf was found in cultivars PB 006 (Misti pan). So, PB 006 (Misti pan) was seemed to be a better cultivar/ germplasm in respect of yield and quality of betel leaf.","PeriodicalId":322702,"journal":{"name":"The Agriculturists","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126563750","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}
Pub Date : 2020-09-29DOI: 10.3329/agric.v18i1.49454
S. Pramanik, S. Sikder
The tobacco industry is one of the biggest industries in the world generates and disposes large quantities of wastewater in the environment which may be toxic to the plant, animal, public health as well as environment. Therefore, an experiment was conducted during November, 2019 at Crop Physiology and Ecology Laboratory, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh to observe the effects of tobacco industry wastewater on germination, early seedling growth and seedling leaf chlorophyll content of wheat (Triticum aestivum L.). Three wheat genotypes (BARI Gom 28, BARI Gom 29 and BAW 1177) and two growing conditions (normal tap water and tobacco industry wastewater) were assigned in a completely randomized design with three replications in germination test. Results showed that germination characteristics, seedling growth and chlorophyll content in leaf of seedling significantly influenced by wheat genotype, growing condition and their interaction. Irrigation with tobacco industry wastewater lowered the germination percentage, rate of germination, co-efficient of germination and vigor index. However, seedlings irrigated with tobacco industry wastewater produced longer shoot and root as compared to seedlings irrigated with tap water. Similarly, tobacco industry wastewater increased the shoot and root dry weight but reduced the chlorophyll content in leaf of seedling. Among the three wheat genotypes, BAW 1177 performed better under both tap water and wastewater conditions regarding germination, early growth and chlorophyll content in leaf of seedling.
{"title":"Germination and Seedling Leaf Chlorophyll Content of Wheat (Triticum aestivum L.) Grown under Industrial Wastewater Condition","authors":"S. Pramanik, S. Sikder","doi":"10.3329/agric.v18i1.49454","DOIUrl":"https://doi.org/10.3329/agric.v18i1.49454","url":null,"abstract":"The tobacco industry is one of the biggest industries in the world generates and disposes large quantities of wastewater in the environment which may be toxic to the plant, animal, public health as well as environment. Therefore, an experiment was conducted during November, 2019 at Crop Physiology and Ecology Laboratory, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh to observe the effects of tobacco industry wastewater on germination, early seedling growth and seedling leaf chlorophyll content of wheat (Triticum aestivum L.). Three wheat genotypes (BARI Gom 28, BARI Gom 29 and BAW 1177) and two growing conditions (normal tap water and tobacco industry wastewater) were assigned in a completely randomized design with three replications in germination test. Results showed that germination characteristics, seedling growth and chlorophyll content in leaf of seedling significantly influenced by wheat genotype, growing condition and their interaction. Irrigation with tobacco industry wastewater lowered the germination percentage, rate of germination, co-efficient of germination and vigor index. However, seedlings irrigated with tobacco industry wastewater produced longer shoot and root as compared to seedlings irrigated with tap water. Similarly, tobacco industry wastewater increased the shoot and root dry weight but reduced the chlorophyll content in leaf of seedling. Among the three wheat genotypes, BAW 1177 performed better under both tap water and wastewater conditions regarding germination, early growth and chlorophyll content in leaf of seedling.","PeriodicalId":322702,"journal":{"name":"The Agriculturists","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126856264","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}
Pub Date : 2020-09-29DOI: 10.3329/agric.v18i1.49455
F. Haydar
Inheritance of grain yield, heterosis and combining ability were investigated in maize populations obtained from half-diallel crossing among six inbred parental lines. General (GCA) and specific (SCA) combining ability effects were significantly different among parental lines. The grain yield was under the partial gene effect. The parents P1, P3 and P5were considered suitable according to their yield contributing attributes couple with general combining ability effects. The midparent heterosis values ranged from -27.246 (P2 xP5) to 15.209% (P1 xP2) whereas the better parent heterosis values varied between 22.375(P2x P3) to 40.363% (P2 x P5) only seven crosses had higher grain yields. Of those crosses, P1×P2, P2×P5 and P1×P3 were considered most promising hybrids yielding heterosis as 15.880%, 20.363% and 40.363 respectively over their parents.
{"title":"Inheritance of Yield Related Traits in a Half Diallel Crosses of Some Maize (Zea mays L.) Genotypes","authors":"F. Haydar","doi":"10.3329/agric.v18i1.49455","DOIUrl":"https://doi.org/10.3329/agric.v18i1.49455","url":null,"abstract":"Inheritance of grain yield, heterosis and combining ability were investigated in maize populations obtained from half-diallel crossing among six inbred parental lines. General (GCA) and specific (SCA) combining ability effects were significantly different among parental lines. The grain yield was under the partial gene effect. The parents P1, P3 and P5were considered suitable according to their yield contributing attributes couple with general combining ability effects. The midparent heterosis values ranged from -27.246 (P2 xP5) to 15.209% (P1 xP2) whereas the better parent heterosis values varied between 22.375(P2x P3) to 40.363% (P2 x P5) only seven crosses had higher grain yields. Of those crosses, P1×P2, P2×P5 and P1×P3 were considered most promising hybrids yielding heterosis as 15.880%, 20.363% and 40.363 respectively over their parents.","PeriodicalId":322702,"journal":{"name":"The Agriculturists","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129857884","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}
Pub Date : 2020-09-29DOI: 10.3329/agric.v18i1.49467
Mizanur Rahman, J. Biswas
Agriculture in Bangladesh is characterized by crop, fishery and livestock sectors. Urea-N is used in all three sectors. Crop sector plays a dominant role in urea consumption to supply of food for ever burgeoning population. Application of inorganic N fertilizer definitely increased agricultural productivity. This however playing a significant role in altering global nutrient budget, water quality, greenhouse gas emission, and ultimately affecting the global climate. Though cropping intensity and use of N fertilizer have increased, yield plateauing is a concern for food security. Recovery efficiency of N rarely exceeds 30% in both crop and fish culture, while remaining reactive N is a global concern. Different industries have emerged in the last decade producing huge amounts of effluents discharging to the environment without treatment which appeared as a potential threat in damaging and disintegrating the environment. Resultant negative effect from application of large amount of organic and inorganic fertilizers and feeds in fishponds is a matter of boundless anxiety as it might act as a source of reactive N. Livestock sector comprising poultry and dairy produce huge amount of manure annually which is equivalent to 0.30 million tons of N and because of poor manure management reactive N is spreading in the environment. Reluctant attitudes on these crucial issues might bring a disaster through stopping natural ecosystem functions of the environment from where ‘U’ turn will rather be impossible. Adoption of resource conservation strategies, judicial and optimum use of N fertilizers in all agricultural sectors, improved management of livestock manure and industrial effluents are strongly recommended for environmental sustainability.
{"title":"Reactive Nitrogen in Crop, Fishery and Livestock Sectors of Bangladesh","authors":"Mizanur Rahman, J. Biswas","doi":"10.3329/agric.v18i1.49467","DOIUrl":"https://doi.org/10.3329/agric.v18i1.49467","url":null,"abstract":"Agriculture in Bangladesh is characterized by crop, fishery and livestock sectors. Urea-N is used in all three sectors. Crop sector plays a dominant role in urea consumption to supply of food for ever burgeoning population. Application of inorganic N fertilizer definitely increased agricultural productivity. This however playing a significant role in altering global nutrient budget, water quality, greenhouse gas emission, and ultimately affecting the global climate. Though cropping intensity and use of N fertilizer have increased, yield plateauing is a concern for food security. Recovery efficiency of N rarely exceeds 30% in both crop and fish culture, while remaining reactive N is a global concern. Different industries have emerged in the last decade producing huge amounts of effluents discharging to the environment without treatment which appeared as a potential threat in damaging and disintegrating the environment. Resultant negative effect from application of large amount of organic and inorganic fertilizers and feeds in fishponds is a matter of boundless anxiety as it might act as a source of reactive N. Livestock sector comprising poultry and dairy produce huge amount of manure annually which is equivalent to 0.30 million tons of N and because of poor manure management reactive N is spreading in the environment. Reluctant attitudes on these crucial issues might bring a disaster through stopping natural ecosystem functions of the environment from where ‘U’ turn will rather be impossible. Adoption of resource conservation strategies, judicial and optimum use of N fertilizers in all agricultural sectors, improved management of livestock manure and industrial effluents are strongly recommended for environmental sustainability.","PeriodicalId":322702,"journal":{"name":"The Agriculturists","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115385524","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}
Pub Date : 2020-09-29DOI: 10.3329/agric.v18i1.49463
F. Akter, M. Haque, M. Baqui
With increasing health awareness, the demand for concentrated proteins from plant sources has been rising for direct consumption or to use as an ingredient in food formulation. The characteristic information of any component is prerequisite for its efficient usage in food preparation. This study was undertaken to isolate the protein from jackfruit seeds and characterizing the physicochemical and functional properties of the isolated protein. The protein fraction from jackfruit seed flour was isolated using pH treatments and centrifugation process. The isolated protein was converted into powder form by a vacuum drying and grinding method. Total protein content in the isolate was determined by the Kjeldahl method. The functional properties such as solubility and gelling capacity and secondary structural elements of jackfruit seed protein isolate (JSPI) were studied. The crude JSPI contained 76.89% protein with 58.44% solubility in aquatic solvent. The conformational study by Fouriertransform infrared spectroscopy (FTIR) indicated that the β -sheet is the dominant secondary structure of JSPI that contained 50.28% β -sheet, 21.71% α -helix, 8.86% β -turn, and 19.15% unordered structure. The least gelation concentration of JSPI dissolved in 1.0 M NaCl solution was 12%. The pH of the solvent significantly affected the emulsifying and foaming properties (p<0.05). Based on the observed structural and functional features, JSPI has prospects to be used as a supplementary ingredient in future food formulations.
随着健康意识的提高，对植物来源的浓缩蛋白质的需求一直在上升，用于直接消费或作为食品配方的成分。任何成分的特征信息是其在食品制备中有效利用的先决条件。本研究从菠萝蜜种子中分离蛋白质，并对分离蛋白质的理化性质和功能特性进行了表征。以菠萝蜜籽粉为原料，采用pH处理和离心分离法分离蛋白质。分离的蛋白质通过真空干燥和研磨的方法转化成粉末形式。用凯氏定氮法测定分离物的总蛋白含量。研究了菠萝蜜籽分离蛋白(JSPI)的溶解度、胶凝性能和二级结构元素等功能特性。粗制JSPI蛋白含量为76.89%，水溶性为58.44%。傅里叶变换红外光谱(FTIR)的构象研究表明，JSPI的主要二级结构为β -片结构，β -片结构占50.28%，α -螺旋结构占21.71%，β -转结构占8.86%，无序结构占19.15%。在1.0 M NaCl溶液中，JSPI的最小胶凝浓度为12%。溶剂的pH值对乳化剂的乳化和发泡性能有显著影响(p<0.05)。基于所观察到的结构和功能特点，JSPI在未来的食品配方中具有作为补充成分的应用前景。
{"title":"Isolation, Structural and Functional Characterization of Jackfruit (Artocarpus heterophyllus Lam) Seed Proteins","authors":"F. Akter, M. Haque, M. Baqui","doi":"10.3329/agric.v18i1.49463","DOIUrl":"https://doi.org/10.3329/agric.v18i1.49463","url":null,"abstract":"With increasing health awareness, the demand for concentrated proteins from plant sources has been rising for direct consumption or to use as an ingredient in food formulation. The characteristic information of any component is prerequisite for its efficient usage in food preparation. This study was undertaken to isolate the protein from jackfruit seeds and characterizing the physicochemical and functional properties of the isolated protein. The protein fraction from jackfruit seed flour was isolated using pH treatments and centrifugation process. The isolated protein was converted into powder form by a vacuum drying and grinding method. Total protein content in the isolate was determined by the Kjeldahl method. The functional properties such as solubility and gelling capacity and secondary structural elements of jackfruit seed protein isolate (JSPI) were studied. The crude JSPI contained 76.89% protein with 58.44% solubility in aquatic solvent. The conformational study by Fouriertransform infrared spectroscopy (FTIR) indicated that the β -sheet is the dominant secondary structure of JSPI that contained 50.28% β -sheet, 21.71% α -helix, 8.86% β -turn, and 19.15% unordered structure. The least gelation concentration of JSPI dissolved in 1.0 M NaCl solution was 12%. The pH of the solvent significantly affected the emulsifying and foaming properties (p<0.05). Based on the observed structural and functional features, JSPI has prospects to be used as a supplementary ingredient in future food formulations.","PeriodicalId":322702,"journal":{"name":"The Agriculturists","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116264751","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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