S. Faruque, A. Bhuiyan, H. Khatun, M. T. Hossain, M. Manu, M. Ali
Four genotypes of quail Dhakai (D), White (W), Brown (Br) and Black (Bl) quail are being maintained at BLRI with the objectives of increasing the sixth-week body weight through selective breeding and selecting parental birds and breeding them in an assortative plan for the production of 8th generation birds. The parent males and females were maintained in cages for single-pair mating through selective breeding system for producing each generation. A total of 1118-day-old quail chicks comprising 4 types were hatched in one batch to produce eighth generation (G8). The expected genetic progress due to selection for 5th-week body weight was estimated for G8. The genotype had significant (p<0.001) effect on the body weight of quails at 5th week of age. The 5th-week body weight was 132.34±0.88, 123.91±0.52, 104.29±0.76 and 105.36±0.68g, respectively for D, W, Br, and Bl genotypes. The hatchability rate was significantly (p<0.001) higher in D (78.47%) compared to other three genotypes. The egg production percentage up to 24th week of age was 85.27±1.0, 80.22±1.61, 81.07±1.2 and 96.12±1.1, respectively for D, W, Br, and Bl and significantly (p<0.001) differed among all genotypes. Mortality percent among genotypes was statistically non-significant (p>0.05). Sixth-week body weight of males of D, W, Br, and Bl quails were expected to increase by 4.06, 6.36, 2.39, and 3.12g, respectively. While in females of D, W, Br, and Bl quails, the responses were 5.60, 3.61, 4.17, and 3.91g, respectively. Taken together, it may be concluded that Dhakai quail was superior for body weight and Black quail for egg production performance. These findings suggested continuing the quail breeding research for producing a suitable meat-type quail genotype in our country. SAARC J. Agric., 21(1): 265-271 (2023)
{"title":"Conservation and improvement of Quail: Performance of eighth generation","authors":"S. Faruque, A. Bhuiyan, H. Khatun, M. T. Hossain, M. Manu, M. Ali","doi":"10.3329/sja.v21i1.66260","DOIUrl":"https://doi.org/10.3329/sja.v21i1.66260","url":null,"abstract":"Four genotypes of quail Dhakai (D), White (W), Brown (Br) and Black (Bl) quail are being maintained at BLRI with the objectives of increasing the sixth-week body weight through selective breeding and selecting parental birds and breeding them in an assortative plan for the production of 8th generation birds. The parent males and females were maintained in cages for single-pair mating through selective breeding system for producing each generation. A total of 1118-day-old quail chicks comprising 4 types were hatched in one batch to produce eighth generation (G8). The expected genetic progress due to selection for 5th-week body weight was estimated for G8. The genotype had significant (p<0.001) effect on the body weight of quails at 5th week of age. The 5th-week body weight was 132.34±0.88, 123.91±0.52, 104.29±0.76 and 105.36±0.68g, respectively for D, W, Br, and Bl genotypes. The hatchability rate was significantly (p<0.001) higher in D (78.47%) compared to other three genotypes. The egg production percentage up to 24th week of age was 85.27±1.0, 80.22±1.61, 81.07±1.2 and 96.12±1.1, respectively for D, W, Br, and Bl and significantly (p<0.001) differed among all genotypes. Mortality percent among genotypes was statistically non-significant (p>0.05). Sixth-week body weight of males of D, W, Br, and Bl quails were expected to increase by 4.06, 6.36, 2.39, and 3.12g, respectively. While in females of D, W, Br, and Bl quails, the responses were 5.60, 3.61, 4.17, and 3.91g, respectively. Taken together, it may be concluded that Dhakai quail was superior for body weight and Black quail for egg production performance. These findings suggested continuing the quail breeding research for producing a suitable meat-type quail genotype in our country. \u0000SAARC J. Agric., 21(1): 265-271 (2023)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"78 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83196339","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}
Improving soil fertility and crop productivity is crucial to reduce food insecurity and poverty in Nepal. Biochar as a soil amendment has been found effective in increasing crop production. Here, we reviewed various biochar studies carried out in Nepal by different organizations and assessed future potential of biochar as an effective soil amendment. In this review, we have included the biochar pretreated (enriched) with nutrient or added separately in soil. We found that good quality biochar could be produced using the novel flame curtain metal and soil pit “Kontik” kiln with slow pyrolysis technology. Biochar produced from Kontiki found having high pH (9.8), organic carbon (OC, 72%), surface area (215 m2g-1) and cation exchange capacity (CEC, 72 cmol kg-1). Further, biochar application improved soil chemical properties (pH, OC, CEC, base cations) and nutrient availability such as available phosphorous (P) and potassium (K). Similarly, biochar addition increased crop yield significantly compared with non-biochar plots. Higher crop yield was achieved when biochar was enriched or charged with cattle urine. Thus, from this study, we suggest that biochar should be prioritized in government programs as a potential soil amendment and scale up or increase its use at farm level. SAARC J. Agric., 21(1): 227-238 (2023)
{"title":"Biochar for Improving crop Production in Nepal","authors":"S. Vista, N. Pandit","doi":"10.3329/sja.v21i1.65258","DOIUrl":"https://doi.org/10.3329/sja.v21i1.65258","url":null,"abstract":"Improving soil fertility and crop productivity is crucial to reduce food insecurity and poverty in Nepal. Biochar as a soil amendment has been found effective in increasing crop production. Here, we reviewed various biochar studies carried out in Nepal by different organizations and assessed future potential of biochar as an effective soil amendment. In this review, we have included the biochar pretreated (enriched) with nutrient or added separately in soil. We found that good quality biochar could be produced using the novel flame curtain metal and soil pit “Kontik” kiln with slow pyrolysis technology. Biochar produced from Kontiki found having high pH (9.8), organic carbon (OC, 72%), surface area (215 m2g-1) and cation exchange capacity (CEC, 72 cmol kg-1). Further, biochar application improved soil chemical properties (pH, OC, CEC, base cations) and nutrient availability such as available phosphorous (P) and potassium (K). Similarly, biochar addition increased crop yield significantly compared with non-biochar plots. Higher crop yield was achieved when biochar was enriched or charged with cattle urine. Thus, from this study, we suggest that biochar should be prioritized in government programs as a potential soil amendment and scale up or increase its use at farm level. \u0000SAARC J. Agric., 21(1): 227-238 (2023)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74395738","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}
H. Khatun, S. Sultana, S. Faruque, M. Sarker, M. Manu, M. Ali
This research was taken to improve the performance of native duck. Two native duck varieties, Rupali and Nageswari of 6th generation were selected aiming to increase their laying performances. A total of 540 ducklings of both genotypes were hatched and brooded in brooder house. Male and female ducks were separated and marked with wing band at 12 weeks of age. At 40 weeks of age, a total of 300 ducks of both genotype were selected on the basis of selection index comprising the parameters of age at first egg, body weight at first egg, egg production % and egg weight. The individual with the higher total score was selected for breeding purposes. Selected male and female ratio were 1:5 using natural mating. The selection intensity and expected selection responses of selection criteria of two duck genotypes were estimated. Selection responses for ASM (day), egg weight (g) and egg production rate was -1.84, 1.08 g and 0.45 in case of Rupali and -1.66, 1.35 and 0.73 for Nageswari, respectively. Egg production % was numerically higher in Rupali (60.12%) than Nageswari (58.41%). Egg weight (EW) and feed intake were significantly differences between two native ducks where both higher values were found in Rupali (EW 64.83g and feed intake 134g) than Nageswary. Egg shape index was significantly higher in Rupali (76%) than Nageswari (75%) duck. In conclusion, Rupali ducks showed better production performance and it is suggested that selective breeding of duck may have significant impact on the development of native duck. SAARC J. Agric., 21(1): 253-263 (2023)
{"title":"Growth performance, egg quality and selection intensity of 6th generation of BLRI improved native duck genotypes","authors":"H. Khatun, S. Sultana, S. Faruque, M. Sarker, M. Manu, M. Ali","doi":"10.3329/sja.v21i1.66244","DOIUrl":"https://doi.org/10.3329/sja.v21i1.66244","url":null,"abstract":"This research was taken to improve the performance of native duck. Two native duck varieties, Rupali and Nageswari of 6th generation were selected aiming to increase their laying performances. A total of 540 ducklings of both genotypes were hatched and brooded in brooder house. Male and female ducks were separated and marked with wing band at 12 weeks of age. At 40 weeks of age, a total of 300 ducks of both genotype were selected on the basis of selection index comprising the parameters of age at first egg, body weight at first egg, egg production % and egg weight. The individual with the higher total score was selected for breeding purposes. Selected male and female ratio were 1:5 using natural mating. The selection intensity and expected selection responses of selection criteria of two duck genotypes were estimated. Selection responses for ASM (day), egg weight (g) and egg production rate was -1.84, 1.08 g and 0.45 in case of Rupali and -1.66, 1.35 and 0.73 for Nageswari, respectively. Egg production % was numerically higher in Rupali (60.12%) than Nageswari (58.41%). Egg weight (EW) and feed intake were significantly differences between two native ducks where both higher values were found in Rupali (EW 64.83g and feed intake 134g) than Nageswary. Egg shape index was significantly higher in Rupali (76%) than Nageswari (75%) duck. In conclusion, Rupali ducks showed better production performance and it is suggested that selective breeding of duck may have significant impact on the development of native duck.\u0000SAARC J. Agric., 21(1): 253-263 (2023)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"2009 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78667654","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}
R. Perera, H. H. Jayawardana, A. Mubarak, M. Nashath, A. M. Shafna
Several plant diseases can be controlled biologically using Trichoderma spp. However, the mass production and storage of Trichoderma spp. is highly expensive. Therefore, this research was carried out at Fruit Crop and Development Center, Horana, Sri Lanka to screen the effects of leaves of four different crops and another 13 underutilized wild plant species on their suitability in the mass production of Trichoderma harzianum L. Seventeen different media were prepared using green leaves (5g) of individual plant species comprised with glucose (5g/L) and distilled water (50ml). Treatments were arranged in Complete Randomized Design (CRD) with five replications. Spore counts of fungus were recorded using hemocytometer at 1st, 2nd, 3rd and 4th week after inoculation. Different treatments showed significant variations in spore counting of T. harzianum after 1st, 2nd, 3rd and 4th week of inoculation (p<0.05). Castor (9.8x107 CFU/ml), gadapana (9.64x107 CFU/ml) and erabadu (9.64x107 CFU/ml) had significantly higher spore count at the 1st week while kappettiya (25.31x107 CFU/ml) and habarala (25.21x107 CFU/ml) had the highest values at 2nd week. Significantly increased spore count of 61.5x107 CFU/ml and 61.2x107 CFU/ml were resulted from castor and kappettiya during 3rd week after inoculation. However, a sharp increase in spore count was found at 4th week, particularly in wal sooriya kantha (157.17x107 CFU/ml) while in contrary, the lemon, rambutan, bovitiya, jack and mango leaves showed poor performances in the mass production of T. harzianum. Based on these results, wal sooriya kantha can be successfully used as growing media for T. harzianum. SAARC J. Agric., 21(1): 79-87 (2023)
{"title":"Potential uses of underutilized plant species for the mass production of Trichoderma harzianum L.","authors":"R. Perera, H. H. Jayawardana, A. Mubarak, M. Nashath, A. M. Shafna","doi":"10.3329/sja.v21i1.65590","DOIUrl":"https://doi.org/10.3329/sja.v21i1.65590","url":null,"abstract":"Several plant diseases can be controlled biologically using Trichoderma spp. However, the mass production and storage of Trichoderma spp. is highly expensive. Therefore, this research was carried out at Fruit Crop and Development Center, Horana, Sri Lanka to screen the effects of leaves of four different crops and another 13 underutilized wild plant species on their suitability in the mass production of Trichoderma harzianum L. Seventeen different media were prepared using green leaves (5g) of individual plant species comprised with glucose (5g/L) and distilled water (50ml). Treatments were arranged in Complete Randomized Design (CRD) with five replications. Spore counts of fungus were recorded using hemocytometer at 1st, 2nd, 3rd and 4th week after inoculation. Different treatments showed significant variations in spore counting of T. harzianum after 1st, 2nd, 3rd and 4th week of inoculation (p<0.05). Castor (9.8x107 CFU/ml), gadapana (9.64x107 CFU/ml) and erabadu (9.64x107 CFU/ml) had significantly higher spore count at the 1st week while kappettiya (25.31x107 CFU/ml) and habarala (25.21x107 CFU/ml) had the highest values at 2nd week. Significantly increased spore count of 61.5x107 CFU/ml and 61.2x107 CFU/ml were resulted from castor and kappettiya during 3rd week after inoculation. However, a sharp increase in spore count was found at 4th week, particularly in wal sooriya kantha (157.17x107 CFU/ml) while in contrary, the lemon, rambutan, bovitiya, jack and mango leaves showed poor performances in the mass production of T. harzianum. Based on these results, wal sooriya kantha can be successfully used as growing media for T. harzianum.\u0000SAARC J. Agric., 21(1): 79-87 (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":"79552183","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}
Sheikh Muhammad Masum, F. Nowroz, M. Talha, M. Islam, M. Jalal, M. A. Uddin
Parthenium hysterophorus L. is a noxious alien invasive weed species rapidly spreading in Bangladesh. P. hysterophorus examined the prospects of using allelopathic extracts during the period of July 2021 to June 2022. Experiments were conducted in the net house at Sher-e-Bangla Agricultural University, in non-cropped areas of Khustia and cropped areas of Chudanga. The net house experiments were laid out in complete randomized design (CRD) and replicated three times separately for each growth stage. Results showed that by using pretilachlor, pendimethalin, bensulfuron methyl + pretilachlor, bensulfuron methyl + acetachlor, oxadiazon, and pyrazosulfuron-ethyl + pretilachlor decreased the seed germination of parthenium at pot bioassay under both puddle and dry sown condition. At rosette stage of parthenium weed, glyphosate and carfentrazone ethyl (5%) + glyphosate with ½, ¾, and full doses gave 100% mortality at three weeks after treatment (WAT). In cropped areas carfentrazone Ethyl (5%) + glyphosate (36%) and quizalofop-p-ethyl resulted in a 100% and 90% mortality rate at 21 DAT. Overall, the efficacy of herbicides was more effective on rosette parthenium than bolted plants. A phytotoxic response to weed growth was induced by aqueous extracts of Oryza sativa L. var. Boteswar, Triticum aestivum L. var. BARI gom-21, Helianthus annus L., Datura metel, Mangifera indica L., Delonix regia, and Acacia nilotica. Delonix regia was the most effective for inhibition of germination (29%). Whereas Datura metel extracts and Oryza sativa var. Boteswar straw extracts significantly reduced root (1.5 mm) and shoot (3.8 mm) length. SAARC J. Agric., 21(1): 239-252 (2023)
虎耳草(Parthenium hysterophorus L.)是一种在孟加拉国迅速蔓延的有害外来入侵杂草。在2021年7月至2022年6月期间，P. hysterophorus研究了化感提取物的使用前景。试验在Sher-e-Bangla农业大学的网房、Khustia的非种植区和Chudanga的种植区进行。网箱试验采用完全随机设计(CRD)，每个生育期重复3次。结果表明，在水坑和干播条件下，喷施苯甲草胺、二甲甲烷、甲基苯磺隆+苯甲草胺、甲基苯磺隆+乙酰草胺、恶二嗪和吡唑磺隆乙基+苯甲草胺均可降低帕特兰种子的萌发率。在莲座期，草甘膦和卡芬曲酮乙基(5%)+草甘膦1 / 2、3 / 4和全剂量在治疗后3周死亡率为100% (WAT)。在作物地区，卡芬曲酮乙基(5%)+草甘膦(36%)和对乙基吡喹唑磷在21个时间点的死亡率分别为100%和90%。总体而言，除草剂对莲座孤雌草的效果优于栓接植物。水稻(Oryza sativa L. var. Boteswar)、小麦(Triticum aestivum L. var. BARI gom-21)、向日葵(Helianthus annus L.)、曼陀罗(Datura metel)、芒果(Mangifera indica L.)、龙葵(Delonix regia)和金合欢(Acacia nilotica)的水提液对杂草生长产生了植物毒性反应。龙葵对发芽的抑制效果最好(29%)。曼陀罗提取物和米草提取物显著缩短了根(1.5 mm)和茎(3.8 mm)的长度。南盟J.农业生态学报，21(1):239-252 (2023)
{"title":"Invasive weed (Parthenium hysterophorus) response to chemical and allelopathic extracts at different stages","authors":"Sheikh Muhammad Masum, F. Nowroz, M. Talha, M. Islam, M. Jalal, M. A. Uddin","doi":"10.3329/sja.v21i1.66001","DOIUrl":"https://doi.org/10.3329/sja.v21i1.66001","url":null,"abstract":"Parthenium hysterophorus L. is a noxious alien invasive weed species rapidly spreading in Bangladesh. P. hysterophorus examined the prospects of using allelopathic extracts during the period of July 2021 to June 2022. Experiments were conducted in the net house at Sher-e-Bangla Agricultural University, in non-cropped areas of Khustia and cropped areas of Chudanga. The net house experiments were laid out in complete randomized design (CRD) and replicated three times separately for each growth stage. Results showed that by using pretilachlor, pendimethalin, bensulfuron methyl + pretilachlor, bensulfuron methyl + acetachlor, oxadiazon, and pyrazosulfuron-ethyl + pretilachlor decreased the seed germination of parthenium at pot bioassay under both puddle and dry sown condition. At rosette stage of parthenium weed, glyphosate and carfentrazone ethyl (5%) + glyphosate with ½, ¾, and full doses gave 100% mortality at three weeks after treatment (WAT). In cropped areas carfentrazone Ethyl (5%) + glyphosate (36%) and quizalofop-p-ethyl resulted in a 100% and 90% mortality rate at 21 DAT. Overall, the efficacy of herbicides was more effective on rosette parthenium than bolted plants. A phytotoxic response to weed growth was induced by aqueous extracts of Oryza sativa L. var. Boteswar, Triticum aestivum L. var. BARI gom-21, Helianthus annus L., Datura metel, Mangifera indica L., Delonix regia, and Acacia nilotica. Delonix regia was the most effective for inhibition of germination (29%). Whereas Datura metel extracts and Oryza sativa var. Boteswar straw extracts significantly reduced root (1.5 mm) and shoot (3.8 mm) length.\u0000SAARC J. Agric., 21(1): 239-252 (2023)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82598983","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. Sarker, M. S. Hosen, H. Hossain, M. Roy, T. Afroz, M. Hasanuzzaman, A. Rahman
The experiment was carried out to investigate the effect of nutrient combinations and spacing on the growth performance of mungbean (BARI mung 5) using split plot design. The experiment comprised of 3 levels of spacing; S1- 20 cm × 10 cm, S2- 30 cm × 10 cm and S3- 45 cm × 15 cm; and 6 levels of fertilizers; F0- Control (without fertilizer), F1- Recommended dose of NPK, F2- 5 t ha-1 cowdung, F3- 5 t ha-1 cowdung + Recommended dose of NPK, F4- 2.5 t ha-1 cowdung + Recommended dose of NPK and F5- 2.5 t ha-1cowdung + ½ Recommended dose of NPK. Among different treatments maximum number of leaves (13.70), branches (2.44) and dry weight (10.97g) was recorded from S3 at 60 DAS on the other hand highest number of leaves (13.83) found in F4 and dry matter (8.89g) in F3 at 60 DAS. However, when combined with fertilizers and spacings, the S3F4 treatment had the highest dry matter weight (12.7g) before harvest. In terms of yield performance, applying cowdung @ 2.5 t ha-1 along with recommended NPK resulted in the highest seed yield (1156.7 kg ha-1). The number of plant populations was higher in S2 (30 cm 10 cm) than in S3 (45 cm × 15 cm), so S2 produced the highest grain yield (1022.8 kg ha-1). It is clear that different fertilizer combinations and spacings have a significant impact on mungbean growth performance. S2F4 combinations may be the best choice for improved mungbean cultivation. SAARC J. Agric., 21(1): 189-201 (2023)
本试验采用裂区设计，研究了营养组合和间距对绿豆(BARI mung 5)生长性能的影响。试验由3个水平间距组成;S1- 20厘米× 10厘米，S2- 30厘米× 10厘米，S3- 45厘米× 15厘米;6级肥料;F0-对照(不施肥)，F1- NPK推荐用量，F2- 5吨ha-1牛粪，F3- 5吨ha-1牛粪+ NPK推荐用量，F4- 2.5吨ha-1牛粪+ NPK推荐用量，F5- 2.5吨ha-1牛粪+ NPK推荐用量。不同处理中，60 DAS时S3处理的叶片数最多(13.70)，分枝数最多(2.44)，干重最多(10.97g)， 60 DAS时F4处理的叶片数最多(13.83)，干物质最多(8.89g)。然而，当与肥料和间隔相结合时，收获前干物质重最高(12.7g)。就产量表现而言，施用2.5 t hm -1牛粪和推荐的氮磷钾可获得最高的种子产量(1156.7 kg hm -1)。S2 (30 cm × 10 cm)植株种群数高于S3 (45 cm × 15 cm)，籽粒产量最高(1022.8 kg ha-1)。可见，不同施肥组合和间距对绿豆生长性能有显著影响。S2F4组合可能是改良绿豆栽培的最佳选择。南盟J.农业农业学报，21(1):189-201 (2023)
{"title":"Performance of different fertilizers and plant spacing on the growth of mungbean","authors":"S. Sarker, M. S. Hosen, H. Hossain, M. Roy, T. Afroz, M. Hasanuzzaman, A. Rahman","doi":"10.3329/sja.v21i1.65646","DOIUrl":"https://doi.org/10.3329/sja.v21i1.65646","url":null,"abstract":"The experiment was carried out to investigate the effect of nutrient combinations and spacing on the growth performance of mungbean (BARI mung 5) using split plot design. The experiment comprised of 3 levels of spacing; S1- 20 cm × 10 cm, S2- 30 cm × 10 cm and S3- 45 cm × 15 cm; and 6 levels of fertilizers; F0- Control (without fertilizer), F1- Recommended dose of NPK, F2- 5 t ha-1 cowdung, F3- 5 t ha-1 cowdung + Recommended dose of NPK, F4- 2.5 t ha-1 cowdung + Recommended dose of NPK and F5- 2.5 t ha-1cowdung + ½ Recommended dose of NPK. Among different treatments maximum number of leaves (13.70), branches (2.44) and dry weight (10.97g) was recorded from S3 at 60 DAS on the other hand highest number of leaves (13.83) found in F4 and dry matter (8.89g) in F3 at 60 DAS. However, when combined with fertilizers and spacings, the S3F4 treatment had the highest dry matter weight (12.7g) before harvest. In terms of yield performance, applying cowdung @ 2.5 t ha-1 along with recommended NPK resulted in the highest seed yield (1156.7 kg ha-1). The number of plant populations was higher in S2 (30 cm 10 cm) than in S3 (45 cm × 15 cm), so S2 produced the highest grain yield (1022.8 kg ha-1). It is clear that different fertilizer combinations and spacings have a significant impact on mungbean growth performance. S2F4 combinations may be the best choice for improved mungbean cultivation.\u0000SAARC J. Agric., 21(1): 189-201 (2023)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76388202","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}
Jubayer Ahmed, F. Mahmud, Sharmin Sultana, M. Shamsuzzaman
Twenty five genotypes of Kenaf (Hibiscus cannabinus L.) from different geographic origins were grown at the Central Jute Agricultural Experiment station of Bangladesh Jute Research Institute (BJRI), Jagir, Manikganj to study their variability, correlation for nine morphological characters. Significant variation was found for all the characters among the genotypes. PCV was greater than GCV and high GCV values were observed for green weight with leaves, green weight without leaves, stick weight and fibre weight. The high heritability (more than 85%) coupled with high genetic advance in percent of mean were observed for most of the traits. All the characters except green bark thickness and internode length showed significant and positive correlation with fibre weight. Path co-efficient analysis revealed that green weight with leaves, green weight without leaves, green bark thickness and stick weight showed positive direct effect on fibre yield. Considering these agronomic performance genotypes G22 and G25 are suggested for future hybridization program. SAARC J. Agric., 20(2): 31-42 (2022)
{"title":"Appraisement of genetic variability and character association of kenaf (Hibiscus cannabinus)","authors":"Jubayer Ahmed, F. Mahmud, Sharmin Sultana, M. Shamsuzzaman","doi":"10.3329/sja.v20i2.63449","DOIUrl":"https://doi.org/10.3329/sja.v20i2.63449","url":null,"abstract":"Twenty five genotypes of Kenaf (Hibiscus cannabinus L.) from different geographic origins were grown at the Central Jute Agricultural Experiment station of Bangladesh Jute Research Institute (BJRI), Jagir, Manikganj to study their variability, correlation for nine morphological characters. Significant variation was found for all the characters among the genotypes. PCV was greater than GCV and high GCV values were observed for green weight with leaves, green weight without leaves, stick weight and fibre weight. The high heritability (more than 85%) coupled with high genetic advance in percent of mean were observed for most of the traits. All the characters except green bark thickness and internode length showed significant and positive correlation with fibre weight. Path co-efficient analysis revealed that green weight with leaves, green weight without leaves, green bark thickness and stick weight showed positive direct effect on fibre yield. Considering these agronomic performance genotypes G22 and G25 are suggested for future hybridization program.\u0000SAARC J. Agric., 20(2): 31-42 (2022)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75790197","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. Islam, M. E. Hoque, Md. Alauddin, M. Shamsuzzaman
Genetic identification of cultivars and varieties is useful in preserving endangered potato germplasm and planning for new breeding programs. Molecular characterization and genetic diversity of 10 local potato genotypes of Bangladesh were investigated with five RAPD primers, namely OPA-18, OPB-06, OPC-01, OPD-02 and OPW. Genomic DNA was extracted from young leaves and PCR reactions were performed with selected primers. The selected primers generated 33 distinct and differential amplified bands (size ranged from 131-1188 bp), out of which 28 were polymorphic. The percentage of polymorphic loci was valued from 33.33% to 100%. Gene frequency was ranged from 0.300 to 1 and gene diversity was from 0 to 0.70. The inter-varietal similarity indices was ranged from 42.45% to 92.67%. Pair-wise comparisons of Nei's genetic identity value was from 0.4848 to 0.9394. The highest Nei's genetic identity (0.9394) was observed in Sheel Bilati and SAU Promising Genotype-5 genotype pair. Nei's (1972) genetic distance was from 0.0625 to 0.7239. Dendrogram based on Nei's genetic distance using Unweighted Pair Group Method with Arithmetic Means (UPGMA) indicated the segregation of studied potato genotypes into two main clusters. It was found that RAPD markers are sensitive enough to identify genetic variation in a variety of germplasm, which will be helpful for choosing genetically unique germplasm in potato breeding programs. SAARC J. Agric., 20(2): 43-55 (2022)
{"title":"Molecular characterization and diversity analysis of some local potato (Solanum tuberosum L.) genotypes of Bangladesh by RAPD markers","authors":"M. Islam, M. E. Hoque, Md. Alauddin, M. Shamsuzzaman","doi":"10.3329/sja.v20i2.63469","DOIUrl":"https://doi.org/10.3329/sja.v20i2.63469","url":null,"abstract":"Genetic identification of cultivars and varieties is useful in preserving endangered potato germplasm and planning for new breeding programs. Molecular characterization and genetic diversity of 10 local potato genotypes of Bangladesh were investigated with five RAPD primers, namely OPA-18, OPB-06, OPC-01, OPD-02 and OPW. Genomic DNA was extracted from young leaves and PCR reactions were performed with selected primers. The selected primers generated 33 distinct and differential amplified bands (size ranged from 131-1188 bp), out of which 28 were polymorphic. The percentage of polymorphic loci was valued from 33.33% to 100%. Gene frequency was ranged from 0.300 to 1 and gene diversity was from 0 to 0.70. The inter-varietal similarity indices was ranged from 42.45% to 92.67%. Pair-wise comparisons of Nei's genetic identity value was from 0.4848 to 0.9394. The highest Nei's genetic identity (0.9394) was observed in Sheel Bilati and SAU Promising Genotype-5 genotype pair. Nei's (1972) genetic distance was from 0.0625 to 0.7239. Dendrogram based on Nei's genetic distance using Unweighted Pair Group Method with Arithmetic Means (UPGMA) indicated the segregation of studied potato genotypes into two main clusters. It was found that RAPD markers are sensitive enough to identify genetic variation in a variety of germplasm, which will be helpful for choosing genetically unique germplasm in potato breeding programs.\u0000SAARC J. Agric., 20(2): 43-55 (2022)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"202 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83466653","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}
Algal biomass is good source of oils and it can be used for producing biodiesel. The present work is a study of biodiesel production from the algal blooms. Microcystis species was isolated from the blooms and cultured in BG-11 medium. The biodiesel was extracted using alkali catalyzed transesterification method. The trans esterified oil was collected and subjected to GC MS analysis. The FAME profiles showed the presence of unsaturated fatty acids which confirms the presence of biodiesel. The extracted biodiesel was also characterized for the physical properties like fatty acid value, saponification value, iodine value, cetane number, kinematic viscosity, pour point and cloud point. SAARC J. Agric., 20(2): 273-281 (2022)
{"title":"Algal blooms -a source of oil for biodiesel","authors":"S. Meghana, S. M. Murthy","doi":"10.3329/sja.v20i2.63587","DOIUrl":"https://doi.org/10.3329/sja.v20i2.63587","url":null,"abstract":"Algal biomass is good source of oils and it can be used for producing biodiesel. The present work is a study of biodiesel production from the algal blooms. Microcystis species was isolated from the blooms and cultured in BG-11 medium. The biodiesel was extracted using alkali catalyzed transesterification method. The trans esterified oil was collected and subjected to GC MS analysis. The FAME profiles showed the presence of unsaturated fatty acids which confirms the presence of biodiesel. The extracted biodiesel was also characterized for the physical properties like fatty acid value, saponification value, iodine value, cetane number, kinematic viscosity, pour point and cloud point.\u0000SAARC J. Agric., 20(2): 273-281 (2022)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"63 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91001365","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}
Mohammed Dedarul Islam, N. C. Sarker, Akter Jahan Kakon, J. Uddain, M. Chowdhury, M. Kabir
Performance of four oyster mushroom species such as Pleurotus ostreatus, PO-2 (S1), P. djmour, Pop-1 (S2), P. florida, FLO-2 (S3) and Pleurotus ostreatus PO-10 (S4) with two culture methods like spore culture (C1) and vegetative tissue culture (C2) was investigated. The experiment was conducted in Mushroom Development Institute (MDI), Savar, Dhaka from April to June, 2021 in CRD method. Considerable variations on different parameters related to growth and yield attributes were recorded.The least time required (56 days) from pure culture to first harvest was recorded in S2. The minimum days required for mycelium running completion in spawn packet (20.25 days) was observed from the treatment combination S2C1 whereas the maximum days (28.5 days) was observed from S3 C2. From pure culture to first harvest, the highest duration (77.75 days) was observed in S1C2 and the lowest duration (54.50 days) was observed in S2C1. The diameter of pilea ranged from 6.2 cm to 7.3 cm with significant difference. The maximum yield (137.25g) and biological efficiency (61%) were achieved from S2C1, the lowest yield (108.12g) and biological efficiency (48.05%) were being found with S3C1. The protein percentage was found highest (24.56%) in S1 and fiber was maximum (20.72%) in S3. Protein percentage was found maximum (24.82%) in S1C1 and minimum (21.52%) in S3C2. The highest yields (133.31 g, 124.47 g and 137.25 g) were achieved from S2 species, C1 culture method and combination treatment S2C1, respectively. SAARC J. Agric., 20(2): 169-181 (2022)
{"title":"Performance of oyster mushroom species in the summer season using spore culture and vegetative tissue culture methods","authors":"Mohammed Dedarul Islam, N. C. Sarker, Akter Jahan Kakon, J. Uddain, M. Chowdhury, M. Kabir","doi":"10.3329/sja.v20i2.63579","DOIUrl":"https://doi.org/10.3329/sja.v20i2.63579","url":null,"abstract":"Performance of four oyster mushroom species such as Pleurotus ostreatus, PO-2 (S1), P. djmour, Pop-1 (S2), P. florida, FLO-2 (S3) and Pleurotus ostreatus PO-10 (S4) with two culture methods like spore culture (C1) and vegetative tissue culture (C2) was investigated. The experiment was conducted in Mushroom Development Institute (MDI), Savar, Dhaka from April to June, 2021 in CRD method. Considerable variations on different parameters related to growth and yield attributes were recorded.The least time required (56 days) from pure culture to first harvest was recorded in S2. The minimum days required for mycelium running completion in spawn packet (20.25 days) was observed from the treatment combination S2C1 whereas the maximum days (28.5 days) was observed from S3 C2. From pure culture to first harvest, the highest duration (77.75 days) was observed in S1C2 and the lowest duration (54.50 days) was observed in S2C1. The diameter of pilea ranged from 6.2 cm to 7.3 cm with significant difference. The maximum yield (137.25g) and biological efficiency (61%) were achieved from S2C1, the lowest yield (108.12g) and biological efficiency (48.05%) were being found with S3C1. The protein percentage was found highest (24.56%) in S1 and fiber was maximum (20.72%) in S3. Protein percentage was found maximum (24.82%) in S1C1 and minimum (21.52%) in S3C2. The highest yields (133.31 g, 124.47 g and 137.25 g) were achieved from S2 species, C1 culture method and combination treatment S2C1, respectively.\u0000SAARC J. Agric., 20(2): 169-181 (2022)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85155107","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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