S. A. Siddiqui, Apple Mahmud, Q. Khaliq, M. G. Haque, A. Solaiman, M. Karim
Mungbean [Vigna radiata (L)], an important grain legume in Bangladesh, is grown during kharif1 (pre-monsoon) season, when drought is a common abiotic stress. This study was thus conducted in pots inside semi-controlled vinylhouse to assess the effect of water stress on growth and yield of some popular mungbean varieties, viz. BUmug 2, BUmug 4, BARI Mung-5, BARI Mung-6, Binamoog-5 and Binamoog-8. Two water regimes, 80% field capacity (FC; non-stress) and 50% FC (water stress) were maintained. The experiment was laid out in a completely randomized design having four replications. Under water stress the variety Binamoog-5 had the largest leaf area (850.4 cm2 ), while BUmug 4 had the smallest (695.1 cm2 ). At maturity the reduction of shoot dry weight due to water stress was the highest in BUmug 4 (20.6%) while that was the lowest in Binamoog-5 (12.5%). The highest reduction of pod number due to water stress was recorded in BUmug 4 (45.1%) and the lowest was in Binamoog-5 (32.9%) followed by Binamoog-8 (34.5%). The highest reduction in seed number pod-1 due to water stress was in BUmug 4 (21.8%) and the lowest was in Binamoog-5 (16.79%). Water deficit did not exert significant effect on 100-seed weight in the varieties except BUmug 4. Binamoog-5 had the maximum yield plant-1 under both control (12.8 g) and water deficit (7.4 g) conditions followed by Binamoog-8, while BUmug 4 had the lowest in both control (11.6 g) and water deficit (6.3 g) conditions. It was concluded that Binamoog-5 and Binamoog-8 can be potential varieties for field trial for cultivation under water deficit conditions.
{"title":"MUNGBEAN VARIETIES EXPRESSED VARIATION IN MORPHOPHYSIOLOGICAL TRAITS AND YIELD UNDER WATER STRESS","authors":"S. A. Siddiqui, Apple Mahmud, Q. Khaliq, M. G. Haque, A. Solaiman, M. Karim","doi":"10.59619/ej.5.1.6","DOIUrl":"https://doi.org/10.59619/ej.5.1.6","url":null,"abstract":"Mungbean [Vigna radiata (L)], an important grain legume in Bangladesh, is grown during kharif1 (pre-monsoon) season, when drought is a common abiotic stress. This study was thus conducted in pots inside semi-controlled vinylhouse to assess the effect of water stress on growth and yield of some popular mungbean varieties, viz. BUmug 2, BUmug 4, BARI Mung-5, BARI Mung-6, Binamoog-5 and Binamoog-8. Two water regimes, 80% field capacity (FC; non-stress) and 50% FC (water stress) were maintained. The experiment was laid out in a completely randomized design having four replications. Under water stress the variety Binamoog-5 had the largest leaf area (850.4 cm2 ), while BUmug 4 had the smallest (695.1 cm2 ). At maturity the reduction of shoot dry weight due to water stress was the highest in BUmug 4 (20.6%) while that was the lowest in Binamoog-5 (12.5%). The highest reduction of pod number due to water stress was recorded in BUmug 4 (45.1%) and the lowest was in Binamoog-5 (32.9%) followed by Binamoog-8 (34.5%). The highest reduction in seed number pod-1 due to water stress was in BUmug 4 (21.8%) and the lowest was in Binamoog-5 (16.79%). Water deficit did not exert significant effect on 100-seed weight in the varieties except BUmug 4. Binamoog-5 had the maximum yield plant-1 under both control (12.8 g) and water deficit (7.4 g) conditions followed by Binamoog-8, while BUmug 4 had the lowest in both control (11.6 g) and water deficit (6.3 g) conditions. It was concluded that Binamoog-5 and Binamoog-8 can be potential varieties for field trial for cultivation under water deficit conditions.","PeriodicalId":39335,"journal":{"name":"Open Ecology Journal","volume":"143 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78532114","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}
Rubina Parvin, M. Amin, ,. M. Afroz, M. Z. Alam, Md Ramiz Uddin Miah
Ash gourd Benincasa hispida Thumb., a cucurbit vegetable, faces frequent infestation of red pumpkin beetle and cucurbit fruit fly. Farmers in Bangladesh mainly apply conventional synthetic insecticides to protect crops from the attack of these pests. The current study was conducted in the experimental field of the Department of Entomology, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur during March 2021 to July 2021 to know the effects of five biorational insecticides, namely Biotrin (matrine), Proclaim (emamectin benzoate), Sunmectin (abamectin), Mahogany oil and Neem oil on the abundance and infestation of red pumpkin beetle and fruit fly infesting ash gourd. The insecticides were applied 3 times maintaining 7 days interval. Results showed significant reduction of the insect population compared to untreated control. Sunmectin (1.55±0.34) treated plot showed the lowest abundance of red pumpkin beetle after the 3rd spray with 65% reduction of population compared to untreated control plot. Biotrin (8.59±1.00%) treated plot showed the lowest leaf and flower infestation by red pumpkin beetle after 3rd spray, with the reduction (69% in both) over control. The lowest fruit infestation was found in Sunmectin treated plot (23.01±8.05%). The highest yield of ash gourd (17.9 T/ha) was recorded from Sunmectin treated plot which showed statistical similarity to Proclaim (16.01 T/ha) and Biotrin (15.90 T/ha) treated plots with 3.5, 2.5 and 2.6 benefit cost ratio, respectively. Therefore, it could be concluded that Sunmectin, Proclaim and Biotrin were more effective to control the infestation of red pumpkin beetle and fruit fly of ash gourd than the other tested insecticides.
{"title":"MANAGEMENT OF RED PUMPKIN BEETLE AND FRUIT FLY IN ASH GOURD USING BIORATIONAL INSECTICIDES","authors":"Rubina Parvin, M. Amin, ,. M. Afroz, M. Z. Alam, Md Ramiz Uddin Miah","doi":"10.59619/ej.5.1.2","DOIUrl":"https://doi.org/10.59619/ej.5.1.2","url":null,"abstract":"Ash gourd Benincasa hispida Thumb., a cucurbit vegetable, faces frequent infestation of red pumpkin beetle and cucurbit fruit fly. Farmers in Bangladesh mainly apply conventional synthetic insecticides to protect crops from the attack of these pests. The current study was conducted in the experimental field of the Department of Entomology, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur during March 2021 to July 2021 to know the effects of five biorational insecticides, namely Biotrin (matrine), Proclaim (emamectin benzoate), Sunmectin (abamectin), Mahogany oil and Neem oil on the abundance and infestation of red pumpkin beetle and fruit fly infesting ash gourd. The insecticides were applied 3 times maintaining 7 days interval. Results showed significant reduction of the insect population compared to untreated control. Sunmectin (1.55±0.34) treated plot showed the lowest abundance of red pumpkin beetle after the 3rd spray with 65% reduction of population compared to untreated control plot. Biotrin (8.59±1.00%) treated plot showed the lowest leaf and flower infestation by red pumpkin beetle after 3rd spray, with the reduction (69% in both) over control. The lowest fruit infestation was found in Sunmectin treated plot (23.01±8.05%). The highest yield of ash gourd (17.9 T/ha) was recorded from Sunmectin treated plot which showed statistical similarity to Proclaim (16.01 T/ha) and Biotrin (15.90 T/ha) treated plots with 3.5, 2.5 and 2.6 benefit cost ratio, respectively. Therefore, it could be concluded that Sunmectin, Proclaim and Biotrin were more effective to control the infestation of red pumpkin beetle and fruit fly of ash gourd than the other tested insecticides.","PeriodicalId":39335,"journal":{"name":"Open Ecology Journal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90816669","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}
Rugose spiraling whitefly (RSW) Aleurodicus rugioperculagus (Hemiptera: Aleurodidae) is an invasive pest causing severe damage to coconut plant, having higher percent of infestation (70.2% to 165.4%). The nymph and adults suck cell sap from the underside of the leaves and secret honeydew that develop sooty mold fungi and interfere the growth of the plants. It was first identified in Bangladesh in 2019 on coconut plants in Jashore.Then it has spread to almost all other districts in Bangladesh. Highest coconut tree infestation was observed in southwestern part (97.5%) and lowest (68.0%) was in central part of the country and there was no significant difference among locations. In the coastal regions, the highest percent (97.0%) of infested coconut tree, infested fronds (96.2%) and leaflet area (84.0%) was recorded in Bagerhat district while the lowest percent infested tree (68.0%), fronds per tree (67.2%) and leaflet area (48.0%) was in Cox’s Bazar. The abundance of RSW increases as the number of leaves increased. Higher percent tree infestation (85.7%) was noticed in native while it was lower(81.2%) in dwarf coconut plants although no significant difference was observed.Low abundances of adult RSW were also found in dwarf coconut plants than that of native ones. The highest incidence of whitefly of coconut was observed in summer months of April-May andthe lowest was in June-July. Biological control is an effective measure where Encarsia guadeloupae, lady bird beetleand lacewings are common predators and entomopathogenic fungi Isaria fumosorosea reduces the incidenceof RSW from 77.8 to 75.1%. Various cultural and mechanical practices also significantly reduce the pest incidence, infestation, abundance of egg, nymph and adult by 50.0%, 49.9%, 49.7%, 50.1% and 49.8% respectively. Different systemic neonicotinoid insecticides also showed successful result in controlling rugose spiraling whitefly
{"title":"RUGOSE SPIRALING WHITEFLY INFESTATION ON COCONUT: THREATS AND REMEDY","authors":"Tasfia Tasnim Moon, M. Amin","doi":"10.59619/ej.5.1.11","DOIUrl":"https://doi.org/10.59619/ej.5.1.11","url":null,"abstract":"Rugose spiraling whitefly (RSW) Aleurodicus rugioperculagus (Hemiptera: Aleurodidae) is an invasive pest causing severe damage to coconut plant, having higher percent of infestation (70.2% to 165.4%). The nymph and adults suck cell sap from the underside of the leaves and secret honeydew that develop sooty mold fungi and interfere the growth of the plants. It was first identified in Bangladesh in 2019 on coconut plants in Jashore.Then it has spread to almost all other districts in Bangladesh. Highest coconut tree infestation was observed in southwestern part (97.5%) and lowest (68.0%) was in central part of the country and there was no significant difference among locations. In the coastal regions, the highest percent (97.0%) of infested coconut tree, infested fronds (96.2%) and leaflet area (84.0%) was recorded in Bagerhat district while the lowest percent infested tree (68.0%), fronds per tree (67.2%) and leaflet area (48.0%) was in Cox’s Bazar. The abundance of RSW increases as the number of leaves increased. Higher percent tree infestation (85.7%) was noticed in native while it was lower(81.2%) in dwarf coconut plants although no significant difference was observed.Low abundances of adult RSW were also found in dwarf coconut plants than that of native ones. The highest incidence of whitefly of coconut was observed in summer months of April-May andthe lowest was in June-July. Biological control is an effective measure where Encarsia guadeloupae, lady bird beetleand lacewings are common predators and entomopathogenic fungi Isaria fumosorosea reduces the incidenceof RSW from 77.8 to 75.1%. Various cultural and mechanical practices also significantly reduce the pest incidence, infestation, abundance of egg, nymph and adult by 50.0%, 49.9%, 49.7%, 50.1% and 49.8% respectively. Different systemic neonicotinoid insecticides also showed successful result in controlling rugose spiraling whitefly","PeriodicalId":39335,"journal":{"name":"Open Ecology Journal","volume":"94 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76428556","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}
Dini Gustiningsih, H. Purnamawati, I. Lubis, M. Syukur
Cowpea, known as a food crop, demonstrates thrive on land with low soil fertility. Albina IPB is a new superior variety of cowpea with a potential yield of 3.88-4.69 t ha-1. This study aims to evaluate the productivity of Albina based on differences in the number of seeds and fertilization. Minus one test method was applied to find out which nutrients among N, P, and K had the most influence on the growth and production of cowpea. The results showed that one seed per planting hole gave the best results which were significantly different from others, while the combination of three seeds per planting hole with minus K resulted in the lowest growth in general. Nevertheless, anthocyanin in the combination of three seeds per planting hole with minus K produced the highest value, significantly different from the other treatments. These results indicate that element K is a limiting element in the growth of cowpea. However, neither the fertilization treatment nor the number of seeds was significantly different in the yield and yield components. Plant productivity ranged from 0.82-1.42 t ha-1 for all treatments.
作为一种粮食作物，豇豆在土壤肥力较低的土地上生长旺盛。albiina IPB是一种新的优良豇豆品种，潜在产量为3.88 ~ 4.69吨/公顷。本研究的目的是在种子数量和受精差异的基础上评价白桦的生产力。采用负一试验法，找出氮、磷、钾中哪些养分对豇豆的生长和生产影响最大。结果表明，每播穴1粒种子的生长效果最好，且差异有统计学意义，而每播穴3粒种子在负钾条件下的组合，总体生长效果最差。在负钾条件下，每播穴3粒组合的花青素产量最高，与其他处理差异显著。这些结果表明，钾元素是豇豆生长的限制元素。而施肥处理和种子数量对产量和产量构成均无显著影响。各处理的植株产量在0.82 ~ 1.42 t hm -1之间。
{"title":"MORPHOPHYSIOLOGICAL CHARACTERS AND PRODUCTION OF COWPEA DUE TO VARIATION IN THE NUMBER OF SEEDS AND FERTILIZATION COMBINATION","authors":"Dini Gustiningsih, H. Purnamawati, I. Lubis, M. Syukur","doi":"10.59619/ej.5.1.4","DOIUrl":"https://doi.org/10.59619/ej.5.1.4","url":null,"abstract":"Cowpea, known as a food crop, demonstrates thrive on land with low soil fertility. Albina IPB is a new superior variety of cowpea with a potential yield of 3.88-4.69 t ha-1. This study aims to evaluate the productivity of Albina based on differences in the number of seeds and fertilization. Minus one test method was applied to find out which nutrients among N, P, and K had the most influence on the growth and production of cowpea. The results showed that one seed per planting hole gave the best results which were significantly different from others, while the combination of three seeds per planting hole with minus K resulted in the lowest growth in general. Nevertheless, anthocyanin in the combination of three seeds per planting hole with minus K produced the highest value, significantly different from the other treatments. These results indicate that element K is a limiting element in the growth of cowpea. However, neither the fertilization treatment nor the number of seeds was significantly different in the yield and yield components. Plant productivity ranged from 0.82-1.42 t ha-1 for all treatments.","PeriodicalId":39335,"journal":{"name":"Open Ecology Journal","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89127221","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. Mrong, Antara Samiha, M. Amin, E. Kayesh, Md Shamim Hossain
The present study was conducted during March to July 2021 in the experimental field of the Department of Entomology of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur to evaluate the effect of some biorational insecticides on pod borer infestation in yard long bean. The study was laid out by Randomized Complete Block Design (RCBD) with 3 replications. The treatment comprised Vermitec 1.8 EC (Abamectin) @ 1.0 ml/L, Tracer 45 SC (Spinosad) @ 0.4 g/L, Bio-Action 1.5 SL (Matrine) @ 1.5 ml/L of water, Ecomec 1.8 EC (Azadiractin) @ 1.5 ml/L and Phytoclean (Potassium salt of fatty acid 40%) @ 1.5 ml/L of water at 15 days interval along with an untreated control for comparison. The study revealed that the lowest rate of inflorescence infestation, the highest reduction of flower shedding, lowest rate of pod infestation by pod borer as well as the highest fruit sets and marketable yield (10.7±0.3 MT/ha) was recorded with the bio-rational management approach comprising 3 sprays of Tracer 45 SC (Spinosad) @ 0.4 g/L of water
{"title":"EFFECT OF DIFFERENT BIO-RATIONAL INSECTICIDES ON THE INFESTATION OF POD BORER ATTACKING YARD LONG BEAN","authors":"A. Mrong, Antara Samiha, M. Amin, E. Kayesh, Md Shamim Hossain","doi":"10.59619/ej.5.1.9","DOIUrl":"https://doi.org/10.59619/ej.5.1.9","url":null,"abstract":"The present study was conducted during March to July 2021 in the experimental field of the Department of Entomology of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur to evaluate the effect of some biorational insecticides on pod borer infestation in yard long bean. The study was laid out by Randomized Complete Block Design (RCBD) with 3 replications. The treatment comprised Vermitec 1.8 EC (Abamectin) @ 1.0 ml/L, Tracer 45 SC (Spinosad) @ 0.4 g/L, Bio-Action 1.5 SL (Matrine) @ 1.5 ml/L of water, Ecomec 1.8 EC (Azadiractin) @ 1.5 ml/L and Phytoclean (Potassium salt of fatty acid 40%) @ 1.5 ml/L of water at 15 days interval along with an untreated control for comparison. The study revealed that the lowest rate of inflorescence infestation, the highest reduction of flower shedding, lowest rate of pod infestation by pod borer as well as the highest fruit sets and marketable yield (10.7±0.3 MT/ha) was recorded with the bio-rational management approach comprising 3 sprays of Tracer 45 SC (Spinosad) @ 0.4 g/L of water","PeriodicalId":39335,"journal":{"name":"Open Ecology Journal","volume":"74 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89819344","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}
Nusrat Jahan Nezu, M. Islam, Md. Soumik Hasan, Atm Shafiqul Islam, M. Hasan
Anthracnose of chili caused by Colletotrichum capsici is responsible for huge yield loss in Bangladesh. To avoid chemical control of the disease, the present study was aimed to observe the field efficacy of selected medicinal plants including neem (Azadirachta indica) and mahogany (Swietenia mahagoni) and a commercially available formulated Trichoderma either alone or in various combinations. Among all the treatments, combined application of mahogany leaf extract and peat soil-based Trichoderma resulted highest reduction of disease incidence (58.99%) and severity (67.19%) of the leaf over control. Similar treatment combinations also resulted the highest reduction of disease incidence (64.08%) and severity (68.97%) of fruit over control. The combined application of mahogany leaf extract and peat soil-based Trichoderma also exhibited the highest plant height (27.44 cm), number of fruits per plant (169), and fruit weight per plant (499.10 g). The findings of the present study explored the potentiality of the combined application of mahogany leaf extract and peat soil-based Trichoderma for the eco-friendly management of Anthracnose of chili.
{"title":"ECO-FRIENDLY MANAGEMENT OF ANTHRACNOSE OF CHILI USING FORMULATED TRICHODERMA AND INDIGENOUS MEDICINAL PLANT","authors":"Nusrat Jahan Nezu, M. Islam, Md. Soumik Hasan, Atm Shafiqul Islam, M. Hasan","doi":"10.59619/ej.5.1.10","DOIUrl":"https://doi.org/10.59619/ej.5.1.10","url":null,"abstract":"Anthracnose of chili caused by Colletotrichum capsici is responsible for huge yield loss in Bangladesh. To avoid chemical control of the disease, the present study was aimed to observe the field efficacy of selected medicinal plants including neem (Azadirachta indica) and mahogany (Swietenia mahagoni) and a commercially available formulated Trichoderma either alone or in various combinations. Among all the treatments, combined application of mahogany leaf extract and peat soil-based Trichoderma resulted highest reduction of disease incidence (58.99%) and severity (67.19%) of the leaf over control. Similar treatment combinations also resulted the highest reduction of disease incidence (64.08%) and severity (68.97%) of fruit over control. The combined application of mahogany leaf extract and peat soil-based Trichoderma also exhibited the highest plant height (27.44 cm), number of fruits per plant (169), and fruit weight per plant (499.10 g). The findings of the present study explored the potentiality of the combined application of mahogany leaf extract and peat soil-based Trichoderma for the eco-friendly management of Anthracnose of chili.","PeriodicalId":39335,"journal":{"name":"Open Ecology Journal","volume":"114 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77994159","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. A. Siddiqui, Apple Mahmud, Q. Khaliq, M. Haque, A. Solaiman, M. Karim
The production of mungbean [Vigna radiata (L.)] is adversely affected by drought in the tropics and sub-tropics. This study investigated the physiological responses of six mungbean varieties viz. BUmug 2, BUmug 4, BARI Mung-5, BARI Mung-6, Binamoog-5 and Binamoog-8 to non-stress (80% of field capacity) and water deficit (50% of field capacity) conditions. The experiment was laid out in a completely randomized design having four replications at the research field of Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur. The variety Binamoog-5 showed the highest level of physiological parameters related to drought tolerance, such as proline content (32.57%), xylem exudation (577.00 mg hr-1 and 383.70 mg hr-1) and total chlorophyll content (2.65 mg g-1 and 2.81 mg g-1) at preflowering and pod development stage, photosynthesis (38.94 μmol m-2 s-1 CO2 ), transpiration (15.00 mg H2 O/dm2 /h), and relative water content (66.14%), whereas that showed the lowest level of cell membrane thermostability (63.8%) under water stressed condition, followed by Binamoog-8. The measured physiological characteristics of other varieties were affected noticeably. Therefore, Binamoog-5 may be considered as a resource for drought tolerant genetic material.
{"title":"WATER STRESS INDUCED CHANGES IN PHYSIOLOGICAL ATTRIBUTES OF MUNGBEAN","authors":"S. A. Siddiqui, Apple Mahmud, Q. Khaliq, M. Haque, A. Solaiman, M. Karim","doi":"10.59619/ej.5.1.8","DOIUrl":"https://doi.org/10.59619/ej.5.1.8","url":null,"abstract":"The production of mungbean [Vigna radiata (L.)] is adversely affected by drought in the tropics and sub-tropics. This study investigated the physiological responses of six mungbean varieties viz. BUmug 2, BUmug 4, BARI Mung-5, BARI Mung-6, Binamoog-5 and Binamoog-8 to non-stress (80% of field capacity) and water deficit (50% of field capacity) conditions. The experiment was laid out in a completely randomized design having four replications at the research field of Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur. The variety Binamoog-5 showed the highest level of physiological parameters related to drought tolerance, such as proline content (32.57%), xylem exudation (577.00 mg hr-1 and 383.70 mg hr-1) and total chlorophyll content (2.65 mg g-1 and 2.81 mg g-1) at preflowering and pod development stage, photosynthesis (38.94 μmol m-2 s-1 CO2 ), transpiration (15.00 mg H2 O/dm2 /h), and relative water content (66.14%), whereas that showed the lowest level of cell membrane thermostability (63.8%) under water stressed condition, followed by Binamoog-8. The measured physiological characteristics of other varieties were affected noticeably. Therefore, Binamoog-5 may be considered as a resource for drought tolerant genetic material.","PeriodicalId":39335,"journal":{"name":"Open Ecology Journal","volume":"49 5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89439572","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}
F. Haque, Sharifa Marmita Noori, Jahid Hasan, D. Shaha
The Mathabhanga river has abundant fish resources, which plays a significant role in maintaining and replenishing the fish resources. The study was conducted from March to October, 2019 by a questionnaire survey and socio economic study of the fishermen in the Chudanga district. However, fish bio-diversity has rapidly declined in the Mathabhanga River. In this study, 44 fish species were found in the Mathabhanga River belonging to eight orders, 18 families and 29 genera. According to the IUCN Red List, 24.99% of fish species were threatened. Among the threatened species, 13.63% were vulnerable, 9.09% endangered and 2.27% were critically endangered. About 45% of fishermen were illiterate and housing condition of fishermen were dominated by tin-shed with bamboo (65%). A significant proportion of fishermen depend upon village doctors (62%) and 86% of the fishermen were far from power plants. Majority (45%) of fishermen were landless and 75% of fishermen were engaged in fishing as their main occupation whereas 65% of the fishermen had annual income between Tk. 35000 to Tk. 55000. In addition, overall values of diversity richness and evenness indices were found 1.12, 4.99 and 0.57,for vulnerable, endangered, and critically endangered species, respectively. These results indicated that dam construction and other human activities have seriously destroyed the fish habitat and led to the decline in fish diversity. Therefore, the conservation of fish has become urgent in the Mathabhanga River, and an integrated management plan should be developed and effectively implemented.
{"title":"DECLINATION OF FISH BIODIVERSITY AND SOCIO-ECONOMIC STATUS OF THE FISHING COMMUNITY OF MATHABHANGA RIVER IN CHUADANGA DISTRICT OF BANGLADESH","authors":"F. Haque, Sharifa Marmita Noori, Jahid Hasan, D. Shaha","doi":"10.59619/ej.5.1.5","DOIUrl":"https://doi.org/10.59619/ej.5.1.5","url":null,"abstract":"The Mathabhanga river has abundant fish resources, which plays a significant role in maintaining and replenishing the fish resources. The study was conducted from March to October, 2019 by a questionnaire survey and socio economic study of the fishermen in the Chudanga district. However, fish bio-diversity has rapidly declined in the Mathabhanga River. In this study, 44 fish species were found in the Mathabhanga River belonging to eight orders, 18 families and 29 genera. According to the IUCN Red List, 24.99% of fish species were threatened. Among the threatened species, 13.63% were vulnerable, 9.09% endangered and 2.27% were critically endangered. About 45% of fishermen were illiterate and housing condition of fishermen were dominated by tin-shed with bamboo (65%). A significant proportion of fishermen depend upon village doctors (62%) and 86% of the fishermen were far from power plants. Majority (45%) of fishermen were landless and 75% of fishermen were engaged in fishing as their main occupation whereas 65% of the fishermen had annual income between Tk. 35000 to Tk. 55000. In addition, overall values of diversity richness and evenness indices were found 1.12, 4.99 and 0.57,for vulnerable, endangered, and critically endangered species, respectively. These results indicated that dam construction and other human activities have seriously destroyed the fish habitat and led to the decline in fish diversity. Therefore, the conservation of fish has become urgent in the Mathabhanga River, and an integrated management plan should be developed and effectively implemented.","PeriodicalId":39335,"journal":{"name":"Open Ecology Journal","volume":"88 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84148831","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}
This study was carried out to investigate the productive and reproductive performances following oral supplementation of dicalcium phosphate (DCP) in different crossbred and local dairy cows. A total of 64 dairy cows of different genetics were selected for the study. All the cows were divided into four different groups and each group consists of 16 cows, namely Local (L), Local ×Holstein Friesian (L×HF), Local × Sindhi (L×S) and Local ×Sahiwal (L×SA). Each group of dairy cows were again subdivided into two subgroups like control and DCP supplement group. We assessed the productive performances such as milk production and lactation length, as well as reproductive performances such as service per conception, post-partum heat period and calving intervals among different breeds of cows as well as in the matching DCP supplement group. The productive performance among the different groups of cows i.e. L×HF, L×S, L×SA and Local cows were found significantly (p<0.01) different. Interestingly, DCP supplement group showed a significant increase of productive performances compared with the control group. Likewise, reproductive performance such as service per conception in different crossbred and Local cows also decreased significantly (p<0.01) with DCP supplement group than the control. Contrarily, the post-partum heat period and calving intervals in different crossbred and Local cows were slightly lower in the DCP supplemented group than control that did not differ significantly. Therefore, the study reveals that L×HF crossbred were found to be better performer followed by L×SA, L×S and Local cows, and DCP supplementation improve all the parameters studied irrespective of genetic variation.
{"title":"DIETARY DICALCIUM PHOSPHATE SUPPLEMENTATION ENHANCES PRODUCTIVE AND REPRODUCTIVE PERFORMANCES OF CROSSBRED AND LOCAL DAIRY COWS","authors":"Md Mizanur Rahman, Abu N. M. A. Rahman, Z. C. Das","doi":"10.59619/ej.5.1.3","DOIUrl":"https://doi.org/10.59619/ej.5.1.3","url":null,"abstract":"This study was carried out to investigate the productive and reproductive performances following oral supplementation of dicalcium phosphate (DCP) in different crossbred and local dairy cows. A total of 64 dairy cows of different genetics were selected for the study. All the cows were divided into four different groups and each group consists of 16 cows, namely Local (L), Local ×Holstein Friesian (L×HF), Local × Sindhi (L×S) and Local ×Sahiwal (L×SA). Each group of dairy cows were again subdivided into two subgroups like control and DCP supplement group. We assessed the productive performances such as milk production and lactation length, as well as reproductive performances such as service per conception, post-partum heat period and calving intervals among different breeds of cows as well as in the matching DCP supplement group. The productive performance among the different groups of cows i.e. L×HF, L×S, L×SA and Local cows were found significantly (p<0.01) different. Interestingly, DCP supplement group showed a significant increase of productive performances compared with the control group. Likewise, reproductive performance such as service per conception in different crossbred and Local cows also decreased significantly (p<0.01) with DCP supplement group than the control. Contrarily, the post-partum heat period and calving intervals in different crossbred and Local cows were slightly lower in the DCP supplemented group than control that did not differ significantly. Therefore, the study reveals that L×HF crossbred were found to be better performer followed by L×SA, L×S and Local cows, and DCP supplementation improve all the parameters studied irrespective of genetic variation.","PeriodicalId":39335,"journal":{"name":"Open Ecology Journal","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73390521","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}
Dev Protim, H. F. El-Taj, Md. Abdul Alim, M. Hossain
The study was conducted in the farmer’s mustard field near the campus of Hajee Mohammad Danesh Science and Technology University, Dinajpur-5200, Bangladesh from November 2020 to March 2021 to identify the insects involved in pollination of mustard and to know their relative abundance. A total number of 24 pollinator insects belonging to 15 families (Apidae, Andrenidae, Halictidae, Scoliidae, Tenthredinidae, Muscidae, Calliphoridae, Rhiniidae, Syrphidae, Arctiide, Crambidae, Nymphalidae, Pieridae, Plutellidae and Coccinellidae) and 4 orders (Hymenoptera, Diptera, Lepidoptera and Coleoptera) were observed associated with mustard (Brassica rapa) crop on BARI Sarisha-17. Among the orders, the Hymenoptera, Diptera, Lepidoptera and Coleoptera were found as 49.8%, 42.0%, 7.4% and 0.6%, respectively. However, Hymenopterans insects were evident the pre-dominant floral visitors. Indian honey bee, Apis cerana showed the highest abundance (23.2%) followed by Rock bee, Apis dorsata (13.8%), Rhiniid blowfly, Stomorhina sp. (10.5%).
该研究于2020年11月至2021年3月在孟加拉国Dinajpur-5200 Hajee Mohammad Danesh科技大学校园附近的农民芥菜田进行，以确定参与芥菜授粉的昆虫并了解它们的相对丰度。在BARI Sarisha-17上共观察到与芥菜(Brassica rapa)作物相关的传粉昆虫24只，隶属于15科(蚜蝇科、蚜蝇科、蚜蝇科、蚜蝇科、蚜蝇科、蚜蝇科、蚜蝇科、蚜蝇科、瘿蝇科、蛱蝶科、小蛱蝶科)和4目(膜翅目、双翅目、鳞翅目、鞘翅目)。其中膜翅目占49.8%，双翅目占42.0%，鳞翅目占7.4%，鞘翅目占0.6%。膜翅目昆虫是显性访花昆虫。印度蜜蜂的丰度最高(23.2%)，其次是岩蜂、灰蜜蜂(13.8%)和灰蛉(10.5%)。
{"title":"ABUNDANCE OF INSECT POLLINATORS IN A MUSTARD FIELD AT DINAJPUR IN BANGLADESH","authors":"Dev Protim, H. F. El-Taj, Md. Abdul Alim, M. Hossain","doi":"10.59619/ej.5.1.7","DOIUrl":"https://doi.org/10.59619/ej.5.1.7","url":null,"abstract":"The study was conducted in the farmer’s mustard field near the campus of Hajee Mohammad Danesh Science and Technology University, Dinajpur-5200, Bangladesh from November 2020 to March 2021 to identify the insects involved in pollination of mustard and to know their relative abundance. A total number of 24 pollinator insects belonging to 15 families (Apidae, Andrenidae, Halictidae, Scoliidae, Tenthredinidae, Muscidae, Calliphoridae, Rhiniidae, Syrphidae, Arctiide, Crambidae, Nymphalidae, Pieridae, Plutellidae and Coccinellidae) and 4 orders (Hymenoptera, Diptera, Lepidoptera and Coleoptera) were observed associated with mustard (Brassica rapa) crop on BARI Sarisha-17. Among the orders, the Hymenoptera, Diptera, Lepidoptera and Coleoptera were found as 49.8%, 42.0%, 7.4% and 0.6%, respectively. However, Hymenopterans insects were evident the pre-dominant floral visitors. Indian honey bee, Apis cerana showed the highest abundance (23.2%) followed by Rock bee, Apis dorsata (13.8%), Rhiniid blowfly, Stomorhina sp. (10.5%).","PeriodicalId":39335,"journal":{"name":"Open Ecology Journal","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72916362","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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