The experiment was carried out at the farmers’ field condition under On-Farm Research Division, Bangladesh Agricultural Research Institute, Tangail during 2016-18 and 2018-20 to find out suitable intercropping system for increasing crop productivity and profitability of pineapple + mukhikachu + papaya intercropping system. The treatments were viz. T1 = Pineapple (100%) + Mukhikachu (40%), T2 = Pineapple (100%) + Papaya (66%) and T3 = Pineapple (100%) + Papaya (66%) + Mukhikachu (40%), T4 = Pineapple (100%), T5 = Mukhikachu (100%), T6 = Papaya (100%). Pineapple (Honey queen), Mukhikachu (Bilashi) and Papaya (Shahi) were used as test materials. The experiment was laid out in a randomized complete block design with six dispersed replications. Pineapple was the main crop, mukhikachu and papaya were intercrop in the study. Among three intercropped treatments, pineapple (100%) + papaya (66%) + mukhikachu (40%) within two paired rows of pineapple (T3) showed higher equivalent yield of pineapple, mukhikachu and papaya 70.37, 46.91 and 58.64 tha-1, respectively which provided yield advantages of 57, 138 and 92 % over their respective sole crops. The highest land equivalent ratio (1.83), gross return (Tk 7,03,700 ha-1) and benefit cost ratio (2.04) were achieved in this treatment (T3) compared to other cropping systems. The higher values of all competition functions were also exhibited in Pineapple (100%) + Papaya (66%) + Mukhikachu (40%) intercropping system. Thus, it could be stated that papaya (66%) and mukhikachu (40%) in between two paired rows of pineapple was the most productive and profitable intercropping system for the farmers of Madhupur Tract (AEZ-28). SAARC J. Agric., 21(1): 25-38 (2023)
{"title":"Intercropping of mukhikachu and papaya with pineapple","authors":"M. A. Khan, M. Rahman, N. Sultana","doi":"10.3329/sja.v21i1.65577","DOIUrl":"https://doi.org/10.3329/sja.v21i1.65577","url":null,"abstract":"The experiment was carried out at the farmers’ field condition under On-Farm Research Division, Bangladesh Agricultural Research Institute, Tangail during 2016-18 and 2018-20 to find out suitable intercropping system for increasing crop productivity and profitability of pineapple + mukhikachu + papaya intercropping system. The treatments were viz. T1 = Pineapple (100%) + Mukhikachu (40%), T2 = Pineapple (100%) + Papaya (66%) and T3 = Pineapple (100%) + Papaya (66%) + Mukhikachu (40%), T4 = Pineapple (100%), T5 = Mukhikachu (100%), T6 = Papaya (100%). Pineapple (Honey queen), Mukhikachu (Bilashi) and Papaya (Shahi) were used as test materials. The experiment was laid out in a randomized complete block design with six dispersed replications. Pineapple was the main crop, mukhikachu and papaya were intercrop in the study. Among three intercropped treatments, pineapple (100%) + papaya (66%) + mukhikachu (40%) within two paired rows of pineapple (T3) showed higher equivalent yield of pineapple, mukhikachu and papaya 70.37, 46.91 and 58.64 tha-1, respectively which provided yield advantages of 57, 138 and 92 % over their respective sole crops. The highest land equivalent ratio (1.83), gross return (Tk 7,03,700 ha-1) and benefit cost ratio (2.04) were achieved in this treatment (T3) compared to other cropping systems. The higher values of all competition functions were also exhibited in Pineapple (100%) + Papaya (66%) + Mukhikachu (40%) intercropping system. Thus, it could be stated that papaya (66%) and mukhikachu (40%) in between two paired rows of pineapple was the most productive and profitable intercropping system for the farmers of Madhupur Tract (AEZ-28).\u0000SAARC J. Agric., 21(1): 25-38 (2023)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75342025","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 investigation was carried out during wheat season of 2019-2020 under normal and late sowing conditions at the research farm of the Agriculture and Forestry University, Rampur, Chitwan, Nepal to evaluate the agro-morphological and yield related traits of spring wheat. A set of thirty elite spring wheat genotypes were evaluated. The experiment was laid out in an Alpha lattice design with three replications. Each replication consisted of 30 treatments of wheat with altogether 90 treatments in three replications. Wheat was sown in two sowing dates that normal sowing date (22nd November, 2019) and late sowing date (23rd December, 2019). Significant differences were observed between two sowing dates for heading and maturity days, plant height, grains spike-1, thousand kernel weight, grain yield, biomass yield, harvest index and SPAD reading. Generally, almost all the traits manifested superiorly on normal sowing date. The mean plant height was 92.71 cm for normal and 88.3 cm for late sown condition. The mean grain yield was 2.94 t ha-1 in normal and 1.91 t ha-1 in late sown condition. Gautam had maximum grain yield that 3.84 t ha-1 followed by Bhrikuti, Vijaya and Aditya under normal sown condition. Bhrikuti had maximum grain yield (2.34 t ha-1) followed by Vijaya, Gautam and NL 297 under late sowing conditions. Significant positive correlation was found between grain yield and investigated attributes. Days to maturity, plant height, spikes per m2, grains per spike, and thousand kernel weight showed significant positive correlations with grain yield. SAARC J. Agric., 21(1): 167-174 (2023)
在2019-2020年小麦季节，在尼泊尔奇旺兰布尔农林大学研究农场进行了正常和晚播条件下的田间调查，以评价春小麦的农业形态和产量相关性状。对30个优质春小麦基因型进行了评价。实验采用阿尔法格子设计，重复三次。每个重复包括30个小麦处理，共90个处理，分3个重复。小麦分正常播期(2019年11月22日)和晚播期(2019年12月23日)两个播期播种。抽穗和成熟期、株高、穗1、千粒重、籽粒产量、生物量产量、收获指数和SPAD读数在两个播期均存在显著差异。一般来说，在正常播期，几乎所有性状都表现出优势。正常和晚播条件下平均株高分别为92.71 cm和88.3 cm。籽粒产量正常条件下为2.94 t hm -1，晚播条件下为1.91 t hm -1。在正常播种条件下，高塔姆籽粒产量最高，为3.84 t hm -1，其次是布里库提、维贾雅和阿迪提亚。在晚播条件下，brikuti籽粒产量最高(2.34 t hm -1)，其次是Vijaya、Gautam和nl297。籽粒产量与所调查性状呈显著正相关。成熟期、株高、穗数、穗粒数、千粒重与产量呈极显著正相关。南盟J.农业生态学报，21(1):167-174 (2023)
{"title":"Evaluation of wheat (Triticum aestivum L.) for agro-morphological and yield related traits under normal and late sowing conditions at Chitwan, Nepal","authors":"A. Thapa, R. Neupane, A. Srivastava, B. Panthi","doi":"10.3329/sja.v21i1.65600","DOIUrl":"https://doi.org/10.3329/sja.v21i1.65600","url":null,"abstract":"A field investigation was carried out during wheat season of 2019-2020 under normal and late sowing conditions at the research farm of the Agriculture and Forestry University, Rampur, Chitwan, Nepal to evaluate the agro-morphological and yield related traits of spring wheat. A set of thirty elite spring wheat genotypes were evaluated. The experiment was laid out in an Alpha lattice design with three replications. Each replication consisted of 30 treatments of wheat with altogether 90 treatments in three replications. Wheat was sown in two sowing dates that normal sowing date (22nd November, 2019) and late sowing date (23rd December, 2019). Significant differences were observed between two sowing dates for heading and maturity days, plant height, grains spike-1, thousand kernel weight, grain yield, biomass yield, harvest index and SPAD reading. Generally, almost all the traits manifested superiorly on normal sowing date. The mean plant height was 92.71 cm for normal and 88.3 cm for late sown condition. The mean grain yield was 2.94 t ha-1 in normal and 1.91 t ha-1 in late sown condition. Gautam had maximum grain yield that 3.84 t ha-1 followed by Bhrikuti, Vijaya and Aditya under normal sown condition. Bhrikuti had maximum grain yield (2.34 t ha-1) followed by Vijaya, Gautam and NL 297 under late sowing conditions. Significant positive correlation was found between grain yield and investigated attributes. Days to maturity, plant height, spikes per m2, grains per spike, and thousand kernel weight showed significant positive correlations with grain yield.\u0000SAARC J. Agric., 21(1): 167-174 (2023)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74954572","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}
Agri-food systems have increasingly faced complex socio-economic and biophysical challenges. Poverty, inequalities, low productivity, food insecurity, resources degradation, loss of biodiversity, and climate change are some of the pertinent challenges demanding immediate attention. There is an increasing realization that current dominant model of development characterized by excessive use of resources, constantly poses negative externalities to the environmental health, climate and human welfare. Since agricultural development policies and practices are key to addressing these issues, there have been compelling calls for adequate policy environments for the profound transformation of agri-food systems to achieve better nutritional, environmental, and sustainability outcomes. Circular economy and agroecological approaches are widely recognized as providing credible pathways to develop inclusive, sustainable and resilient agri-food systems. While there is plethora of studies on agroecology and circular economy in international arena but studies on potential application and implications of these measures in Nepalese context remain unexplored. Furthermore, the circular economic framework is mainly used in industries and yet to be adapted in the agriculture sector. Based on systematic reviews and analysis of academic literatures we propose a framework for sustainable transformation of agrifood systems that encompasses both the circular economic and agroecological principles. We argue that the framework offers plausible solutions to the pressing need of reducing negative externalities of agri-food systems. However, agricultural research, education and development systems are traditionally entrenched by reductionist traditions that poorly accommodate the complex epistemological issues of circular economy and agroecology, and hence are the potential barriers for effective application in Nepalese context. SAARC J. Agric., 21(1): 1-12 (2023)
{"title":"Sustainable Transformation of Agrifood Systems: A Circular Economic and Agroecological Perspective","authors":"G. Acharya","doi":"10.3329/sja.v21i1.66340","DOIUrl":"https://doi.org/10.3329/sja.v21i1.66340","url":null,"abstract":"Agri-food systems have increasingly faced complex socio-economic and biophysical challenges. Poverty, inequalities, low productivity, food insecurity, resources degradation, loss of biodiversity, and climate change are some of the pertinent challenges demanding immediate attention. There is an increasing realization that current dominant model of development characterized by excessive use of resources, constantly poses negative externalities to the environmental health, climate and human welfare. Since agricultural development policies and practices are key to addressing these issues, there have been compelling calls for adequate policy environments for the profound transformation of agri-food systems to achieve better nutritional, environmental, and sustainability outcomes. Circular economy and agroecological approaches are widely recognized as providing credible pathways to develop inclusive, sustainable and resilient agri-food systems. While there is plethora of studies on agroecology and circular economy in international arena but studies on potential application and implications of these measures in Nepalese context remain unexplored. Furthermore, the circular economic framework is mainly used in industries and yet to be adapted in the agriculture sector. Based on systematic reviews and analysis of academic literatures we propose a framework for sustainable transformation of agrifood systems that encompasses both the circular economic and agroecological principles. We argue that the framework offers plausible solutions to the pressing need of reducing negative externalities of agri-food systems. However, agricultural research, education and development systems are traditionally entrenched by reductionist traditions that poorly accommodate the complex epistemological issues of circular economy and agroecology, and hence are the potential barriers for effective application in Nepalese context.\u0000SAARC J. Agric., 21(1): 1-12 (2023)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84852822","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}
Productivity gap in this study is the difference between the productivity of BADC Boro seed and non-BADC Boro seed at the farm level. Again, the economic competitiveness of hybrid Boro seed produced by Bangladesh Agricultural Development Corporation (BADC) is measured through Domestic Resource Cost (DRC). Therefore, the study was examined the productivity gap and the comparative advantage of producing BADC hybrid Boro seed. Primary data were collected from 240 adopters and 240 non-adopters of BADC Boro seed from eight districts of Bangladesh. The average productivity of adopters and non-adopters of BADC Boro seed was 5274 and 4885 kg ha-1, respectively. The average productivity gap between adopters and non-adopters was positive (389 kg ha-1). The average productivity of adopters was 1.08 times higher than that of non-adopters. The study pointed out that 9.51% productivity gap was identified due to the difference in observable characteristics and 90.49% gap to the difference in the yields of such characteristics. The DRC of hybrid Boro seed was 0.87 which is implying that BADC has a comparative advantage in producing hybrid Boro seed. The study revealed that an adequate supply of BADC Boro seed to the farmers will enhance Boro rice productivity in Bangladesh. Therefore, BADC should take necessary steps to increase hybrid Boro seed production to decrease imports and save foreign currency of Bangladesh. SAARC J. Agric., 21(1): 115-126 (2023)
本研究的生产力差距是指BADC Boro种子与非BADC Boro种子在农场水平上的生产力差异。同样，孟加拉国农业发展公司(BADC)生产的杂交Boro种子的经济竞争力通过国内资源成本(DRC)来衡量。因此，研究了生产BADC杂交种Boro种子的生产力差距和比较优势。从孟加拉国8个地区的240名BADC Boro种子采用者和240名非采用者中收集了初步数据。采用和未采用BADC Boro种子的平均产量分别为5274和4885 kg ha-1。采用者和非采用者之间的平均生产力差距是正的(389 kg ha-1)。采用者的平均生产力是非采用者的1.08倍。研究指出，9.51%的生产率差距是由于可观测特征的差异造成的，90.49%的差距是由于可观测特征的产量差异造成的。杂交种的DRC为0.87，表明BADC在生产杂交种方面具有比较优势。该研究表明，向农民提供足够的BADC Boro种子将提高孟加拉国的Boro水稻生产力。因此，BADC应采取必要措施增加杂交Boro种子的产量，以减少进口并节省孟加拉国的外汇。南盟J.农业农业学报，21(1):115-126 (2023)
{"title":"Productivity gap and comparative advantage of BADC Boro rice seed production in Bangladesh","authors":"M. Mia, M. Uddin, H. Kabir, M. Miah, M. Salam","doi":"10.3329/sja.v21i1.65036","DOIUrl":"https://doi.org/10.3329/sja.v21i1.65036","url":null,"abstract":"Productivity gap in this study is the difference between the productivity of BADC Boro seed and non-BADC Boro seed at the farm level. Again, the economic competitiveness of hybrid Boro seed produced by Bangladesh Agricultural Development Corporation (BADC) is measured through Domestic Resource Cost (DRC). Therefore, the study was examined the productivity gap and the comparative advantage of producing BADC hybrid Boro seed. Primary data were collected from 240 adopters and 240 non-adopters of BADC Boro seed from eight districts of Bangladesh. The average productivity of adopters and non-adopters of BADC Boro seed was 5274 and 4885 kg ha-1, respectively. The average productivity gap between adopters and non-adopters was positive (389 kg ha-1). The average productivity of adopters was 1.08 times higher than that of non-adopters. The study pointed out that 9.51% productivity gap was identified due to the difference in observable characteristics and 90.49% gap to the difference in the yields of such characteristics. The DRC of hybrid Boro seed was 0.87 which is implying that BADC has a comparative advantage in producing hybrid Boro seed. The study revealed that an adequate supply of BADC Boro seed to the farmers will enhance Boro rice productivity in Bangladesh. Therefore, BADC should take necessary steps to increase hybrid Boro seed production to decrease imports and save foreign currency of Bangladesh.\u0000SAARC J. Agric., 21(1): 115-126 (2023)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"48 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89362199","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}
Five different locations namely; PSTU campus, BRRI Barishal, RARS Barishal, Dhaka University campus and Mohera Jamidarbari landscapes of Tangail district were selected to study the host range, incidence and damage of the pink hibiscus mealybug. Results revealed that the Pink hibiscus mealybug was found to feed on 22 known host plants from 7 families and 6 unknown host plants. The highest incidence of mealybug per leaf was recorded on century plant and the lowest was on Mussaenda. The highest number of mealybugs per twig was found on Elite patabahar (30) followed by Hibiscus (24) while the lowest number was found on Croton (5). Among five locations the highest percentage of plant infestation was observed at PSTU campus (52%) and the lowest percentage was at BRRI Barishal (35%). The highest percentage of infested leaves per plant was found on Century plant (47%) and the lowest percentage was on Laurentti (12%). The highest percentage of infested twigs per plant was found on Hibiscus (60%) followed by Jatropha (50%) while the lowest percentage was on Maity patabahar (13%). These findings could be helpful to adopt management strategy against Pink hibiscus mealybug in proper time to protect landscape ornamentals and increase beautification. SAARC J. Agric., 21(1): 203-215 (2023)
{"title":"Host range, incidence and damage of pink hibiscus mealybug, maconellicoccus hirsutus infesting ornamental plants","authors":"M. H. Khan","doi":"10.3329/sja.v21i1.66274","DOIUrl":"https://doi.org/10.3329/sja.v21i1.66274","url":null,"abstract":"Five different locations namely; PSTU campus, BRRI Barishal, RARS Barishal, Dhaka University campus and Mohera Jamidarbari landscapes of Tangail district were selected to study the host range, incidence and damage of the pink hibiscus mealybug. Results revealed that the Pink hibiscus mealybug was found to feed on 22 known host plants from 7 families and 6 unknown host plants. The highest incidence of mealybug per leaf was recorded on century plant and the lowest was on Mussaenda. The highest number of mealybugs per twig was found on Elite patabahar (30) followed by Hibiscus (24) while the lowest number was found on Croton (5). Among five locations the highest percentage of plant infestation was observed at PSTU campus (52%) and the lowest percentage was at BRRI Barishal (35%). The highest percentage of infested leaves per plant was found on Century plant (47%) and the lowest percentage was on Laurentti (12%). The highest percentage of infested twigs per plant was found on Hibiscus (60%) followed by Jatropha (50%) while the lowest percentage was on Maity patabahar (13%). These findings could be helpful to adopt management strategy against Pink hibiscus mealybug in proper time to protect landscape ornamentals and increase beautification. \u0000SAARC J. Agric., 21(1): 203-215 (2023)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"66 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86888738","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. Ghosh, S. Begum, A. Hossain, M. O. Ali, M. Islam
Soil salinity is a big threat to the world and has become a major concern to agricultural productivity. Sweet pepper (Capsicum annuum L.) is a high value vegetable; due to its quality nutrition. Despite growing all over the country, its production is not so high in Bangladesh. As a popular crop and also available everywhere, some varieties of sweet pepper were put under this study to assess their salt tolerance level. A pot experiment was conducted at net house, Botanical Garden, BAU, Mymensingh during the period from November, 2020 to April, 2021A factorial with CRD (Completely Randomized Design) was applied, where Factor A consisted of six sweet pepper varieties and Factor B included three salinity levels. In the vegetative stage, most of the parameters showed significant variation with salinity levels among varieties except chlorophyll content. In case of physio-morphological traits, all the parameters were significantly reduced with increasing salinity levels. In case of biochemical attributes, leaf proline contents were significantly increased with the higher level of salinity. Among six varieties being examined under the study, Messi had a relatively higher tolerance level than other varieties and therefore can be recommended for salt tolerance breeding studies. SAARC J. Agric., 21(1): 53-65 (2023)
{"title":"Evaluation of Sweet Pepper Varieties For Salinity Tolerance Based on Morpho- Physiological and Biochemical Attributes","authors":"S. Ghosh, S. Begum, A. Hossain, M. O. Ali, M. Islam","doi":"10.3329/sja.v21i1.66235","DOIUrl":"https://doi.org/10.3329/sja.v21i1.66235","url":null,"abstract":"Soil salinity is a big threat to the world and has become a major concern to agricultural productivity. Sweet pepper (Capsicum annuum L.) is a high value vegetable; due to its quality nutrition. Despite growing all over the country, its production is not so high in Bangladesh. As a popular crop and also available everywhere, some varieties of sweet pepper were put under this study to assess their salt tolerance level. A pot experiment was conducted at net house, Botanical Garden, BAU, Mymensingh during the period from November, 2020 to April, 2021A factorial with CRD (Completely Randomized Design) was applied, where Factor A consisted of six sweet pepper varieties and Factor B included three salinity levels. In the vegetative stage, most of the parameters showed significant variation with salinity levels among varieties except chlorophyll content. In case of physio-morphological traits, all the parameters were significantly reduced with increasing salinity levels. In case of biochemical attributes, leaf proline contents were significantly increased with the higher level of salinity. Among six varieties being examined under the study, Messi had a relatively higher tolerance level than other varieties and therefore can be recommended for salt tolerance breeding studies.\u0000SAARC J. Agric., 21(1): 53-65 (2023)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"36 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86643706","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}
Salinity in the most critical abiotic stress particularly in the coastal area of Ganges Delta. The cropping in the coastal regions of southwestern (SW) Bangladesh during Boro season mainly constraint by the soil and water salinity. Therefore, responses of the rice to different degree of salinity is important. So, a pot experiment was conducted at Dr. Purnendu Gain Field Laboratory of Agrotechnology Discipline, Khulna University, Khulna to screen the response of 8 different boro rice varieties (Noyanmoni, Abdulhai, Kaliboro, BRRI dhan55, Noyantara, Kajollota, Bareyratna, BINA dhan8) at different levels of salinity (0, 4, 8, 12, 16 and 20 dS m-1). The experiment was conducted in a factorial completely randomized deign and replicated thrice. All the growth, yield attributes and yield were significantly declined with the increased levels of salinity compared to control (no salt solution added). All the plants were died with the imposed salinity levels at 12, 16 and 20 dS m-1. Therefore, the collected parameters of rice varieties at 0-8 dS m-1 salinity levels were analyzed. Rice varieties respond well up to 4 dS m-1 and afterwards poor response noticed. Noyanmoni showed best performance in terms of growth, yield attributes and yield compared to other varieties in salinity conditions. From the findings of this study, it is concluded that under medium saline condition Noyanmoni is the suitable rice variety and can be fitted in the coastal saline soil of southwestern Bangladesh during Boro season. SAARC J. Agric., 21(1): 127-137 (2023)
{"title":"Effect of salinity stress on growth and yield potential of dry season rice","authors":"M. S. Jahan, B. C. Sarker, A. A. Ruma, Y. Islam","doi":"10.3329/sja.v21i1.66234","DOIUrl":"https://doi.org/10.3329/sja.v21i1.66234","url":null,"abstract":"Salinity in the most critical abiotic stress particularly in the coastal area of Ganges Delta. The cropping in the coastal regions of southwestern (SW) Bangladesh during Boro season mainly constraint by the soil and water salinity. Therefore, responses of the rice to different degree of salinity is important. So, a pot experiment was conducted at Dr. Purnendu Gain Field Laboratory of Agrotechnology Discipline, Khulna University, Khulna to screen the response of 8 different boro rice varieties (Noyanmoni, Abdulhai, Kaliboro, BRRI dhan55, Noyantara, Kajollota, Bareyratna, BINA dhan8) at different levels of salinity (0, 4, 8, 12, 16 and 20 dS m-1). The experiment was conducted in a factorial completely randomized deign and replicated thrice. All the growth, yield attributes and yield were significantly declined with the increased levels of salinity compared to control (no salt solution added). All the plants were died with the imposed salinity levels at 12, 16 and 20 dS m-1. Therefore, the collected parameters of rice varieties at 0-8 dS m-1 salinity levels were analyzed. Rice varieties respond well up to 4 dS m-1 and afterwards poor response noticed. Noyanmoni showed best performance in terms of growth, yield attributes and yield compared to other varieties in salinity conditions. From the findings of this study, it is concluded that under medium saline condition Noyanmoni is the suitable rice variety and can be fitted in the coastal saline soil of southwestern Bangladesh during Boro season.\u0000SAARC J. Agric., 21(1): 127-137 (2023)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80471997","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 aonla based multistoried agroforestry research field of Bangabandhu Sheikh Mujibur Rahman Agricultural University from June, 2018 to July, 2019 to know the growth performance of dragon fruit and its establishment problems under multistoried tree orchard. The upper storied component of multistoried was aonla tree, carambola and lemon were used as middle storied components, while dragon fruit was the test crop grown as lower storied component. The experiment was laid out in a two-factor randomized complete block design with three replications. Factor A: Production systems (T1: aonla + carambola + lemon + dragon fruit, T2: aonla + dragon fruit, and T3: dragon fruit as sole). Factor B: Two dragon fruit genotypes i.e. red fleshed dragon fruit (V1), and white fleshed dragon fruit (V2). The result indicated that the higher plant height and the maximum number of branches were produced by the red-fleshed dragon fruit than white-fleshed dragon fruit irrespective of production systems. Upper storied plant aonla received 100% PAR but the average amount of light availability for lower storied dragon fruit in the whole growing season was 70.71% (807.51 µmm-2s-1), middle storied carambola and lemon received 77.11% (880.60 µmm-2s-1) and 65.19% (744.47 µmm-2s-1) PAR, respectively. The study found a negative linear relationship between the plant height of dragon fruit and PAR. Only basal rot disease was observed as establishment problem. The maximum disease infestation occurred (37.50%) in multistoried system compared to the sole cropping system (6.94%) and Fusarium oxysporum was identified as causal organism. SAARC J. Agric., 21(1): 39-51 (2023)
{"title":"Initial growth performance and establishment problem of dragon fruit under aonla based multistoried production system","authors":"R. Hasan, M. Miah, T. Ahamed, A. Reza, M. Bhuiyan","doi":"10.3329/sja.v21i1.66239","DOIUrl":"https://doi.org/10.3329/sja.v21i1.66239","url":null,"abstract":"A field experiment was conducted at the aonla based multistoried agroforestry research field of Bangabandhu Sheikh Mujibur Rahman Agricultural University from June, 2018 to July, 2019 to know the growth performance of dragon fruit and its establishment problems under multistoried tree orchard. The upper storied component of multistoried was aonla tree, carambola and lemon were used as middle storied components, while dragon fruit was the test crop grown as lower storied component. The experiment was laid out in a two-factor randomized complete block design with three replications. Factor A: Production systems (T1: aonla + carambola + lemon + dragon fruit, T2: aonla + dragon fruit, and T3: dragon fruit as sole). Factor B: Two dragon fruit genotypes i.e. red fleshed dragon fruit (V1), and white fleshed dragon fruit (V2). The result indicated that the higher plant height and the maximum number of branches were produced by the red-fleshed dragon fruit than white-fleshed dragon fruit irrespective of production systems. Upper storied plant aonla received 100% PAR but the average amount of light availability for lower storied dragon fruit in the whole growing season was 70.71% (807.51 µmm-2s-1), middle storied carambola and lemon received 77.11% (880.60 µmm-2s-1) and 65.19% (744.47 µmm-2s-1) PAR, respectively. The study found a negative linear relationship between the plant height of dragon fruit and PAR. Only basal rot disease was observed as establishment problem. The maximum disease infestation occurred (37.50%) in multistoried system compared to the sole cropping system (6.94%) and Fusarium oxysporum was identified as causal organism.\u0000SAARC J. Agric., 21(1): 39-51 (2023)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"68 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81687031","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}
Chickpea (Cicer arietinum) is a major legume food crop. Its seeds are rich in carbohydrates, protein, vitamin B, and other minerals. For better seed output and protein content, various factors viz; proper light conditions, and freedom from insect pests are necessary. Many insect pests play a damaging role in chickpea production and hence pest control is key to better production. This study was carried out at the experimental sites of Chhatrapati Shahu Ji Maharaj University, Kanpur, India to assess the responses to different dosages of monocrotophos pesticides on chlorophyll and protein contents in Chickpea. Different doses of monocrotophos viz., control, 0.5%, 1%, 1.5%, 2%, 2.5%, 5% 7.5%, and 10% were applied to seeds before sowing. Quantitative analysis of plants for chlorophyll content was done on a per-plant basis, The plant tissues were weighed and the analysis was done on an mgg-1 fresh weight basis. Chlorophyll content was estimated by extracting 80% acetone and determined spectrophotometrically and the quantification was done by the Arnon method (1949). The protein content was also estimated spectrophotometrically. The best results were obtained at 0.5% pesticide concentration. The total chlorophyll content was 1.662 mgg-1 for control and 1.671mgg-1 for 0.5% and decreased with the increasing concentration of monocrotophos pesticide. The protein content was highest, 28.41 mgg-1 at 0.5%, as compared to 27.45 mgg-1 at the control and decreased for increasing concentrations of monocrotophos. The same trend of results was recorded for different doses of deltamethrin. SAARC J. Agric., 21(1): 217-225 (2023)
{"title":"Responses to different dosages of monocrotophos and deltamethrin on chlorophyll and protein contents of chickpea","authors":"R. Dixit, M. Rani, J. Kumar","doi":"10.3329/sja.v21i1.66247","DOIUrl":"https://doi.org/10.3329/sja.v21i1.66247","url":null,"abstract":"Chickpea (Cicer arietinum) is a major legume food crop. Its seeds are rich in carbohydrates, protein, vitamin B, and other minerals. For better seed output and protein content, various factors viz; proper light conditions, and freedom from insect pests are necessary. Many insect pests play a damaging role in chickpea production and hence pest control is key to better production. This study was carried out at the experimental sites of Chhatrapati Shahu Ji Maharaj University, Kanpur, India to assess the responses to different dosages of monocrotophos pesticides on chlorophyll and protein contents in Chickpea. Different doses of monocrotophos viz., control, 0.5%, 1%, 1.5%, 2%, 2.5%, 5% 7.5%, and 10% were applied to seeds before sowing. Quantitative analysis of plants for chlorophyll content was done on a per-plant basis, The plant tissues were weighed and the analysis was done on an mgg-1 fresh weight basis. Chlorophyll content was estimated by extracting 80% acetone and determined spectrophotometrically and the quantification was done by the Arnon method (1949). The protein content was also estimated spectrophotometrically. The best results were obtained at 0.5% pesticide concentration. The total chlorophyll content was 1.662 mgg-1 for control and 1.671mgg-1 for 0.5% and decreased with the increasing concentration of monocrotophos pesticide. The protein content was highest, 28.41 mgg-1 at 0.5%, as compared to 27.45 mgg-1 at the control and decreased for increasing concentrations of monocrotophos. The same trend of results was recorded for different doses of deltamethrin.\u0000SAARC J. Agric., 21(1): 217-225 (2023)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81009545","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. A. Nadim, Md. Mydul Islam, M. Mitu, N. Atiq, M. Hasan, M. I. Uddin
Sweet pepper is one of the most important vegetable crops and its demand is increasing day by day in Bangladesh indicating need for varietal improvement program. Eleven sweet pepper genotypes from native and exotic sources were characterized for twenty-five morphological traits using vegetative and reproductive appearances at Bangladesh Institute of Nuclear Agriculture, Mymensingh, from November 2021 to March 2022. Noticeable variation was observed among twenty-five qualitative traits (25) studied. Nineteen (19) traits showed undisputable variation. Higher number (9 genotypes) of light purple, purple and dark purple color at node indicated high amount of anthocyanin content. Leaf shape is used as genotypes identifier at vegetative stage and three types of leaves were found with dark green color (6 genotypes) that is highly correlates with yield. In case of flower, 100% white color corolla indicates higher number of fruit set. Entire genotypes exhibited one or more exclusive characters especially fruit shape and color which could be used as important breeding materials. CKN-1 and CKN-8 had the highest yield per plant (367.6 and 362.04 grams, respectively), making them potentially good for cultivation, whereas plant height, fruit number, weight, length, and diameter varied among the selected genotypes. A positive Correlation was observed among the traits and genetic distance value ranged from 0.17 to 0.68 among the selected genotypes. However, selection of genotypes with desirable morphological characteristics can be used for their exploitation of future research program. SAARC J. Agric., 21(1): 13-24 (2023)
{"title":"Morphogenetic divergence in Sweet Pepper (Capsicum annum L.) Genotypes","authors":"M. A. Nadim, Md. Mydul Islam, M. Mitu, N. Atiq, M. Hasan, M. I. Uddin","doi":"10.3329/sja.v21i1.62443","DOIUrl":"https://doi.org/10.3329/sja.v21i1.62443","url":null,"abstract":"Sweet pepper is one of the most important vegetable crops and its demand is increasing day by day in Bangladesh indicating need for varietal improvement program. Eleven sweet pepper genotypes from native and exotic sources were characterized for twenty-five morphological traits using vegetative and reproductive appearances at Bangladesh Institute of Nuclear Agriculture, Mymensingh, from November 2021 to March 2022. Noticeable variation was observed among twenty-five qualitative traits (25) studied. Nineteen (19) traits showed undisputable variation. Higher number (9 genotypes) of light purple, purple and dark purple color at node indicated high amount of anthocyanin content. Leaf shape is used as genotypes identifier at vegetative stage and three types of leaves were found with dark green color (6 genotypes) that is highly correlates with yield. In case of flower, 100% white color corolla indicates higher number of fruit set. Entire genotypes exhibited one or more exclusive characters especially fruit shape and color which could be used as important breeding materials. CKN-1 and CKN-8 had the highest yield per plant (367.6 and 362.04 grams, respectively), making them potentially good for cultivation, whereas plant height, fruit number, weight, length, and diameter varied among the selected genotypes. A positive Correlation was observed among the traits and genetic distance value ranged from 0.17 to 0.68 among the selected genotypes. However, selection of genotypes with desirable morphological characteristics can be used for their exploitation of future research program.\u0000SAARC J. Agric., 21(1): 13-24 (2023)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81007667","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：