SAARC Journal of Agriculture最新文献_第3页

Morpho-molecular characterization of napier (Pennisetum purpureum) fodder mutants through SSR markers 利用SSR标记对紫荆草饲料突变体的形态分子特征进行分析

SAARC Journal of Agriculture Pub Date : 2022-12-29 DOI: 10.3329/sja.v20i2.63478

M. Islam, M. Islam, M. Uddin, Md. Ismail Hossain, Md Jannatul Jalal

{"title":"Morpho-molecular characterization of napier (Pennisetum purpureum) fodder mutants through SSR markers","authors":"M. Islam, M. Islam, M. Uddin, Md. Ismail Hossain, Md Jannatul Jalal","doi":"10.3329/sja.v20i2.63478","DOIUrl":"https://doi.org/10.3329/sja.v20i2.63478","url":null,"abstract":"Napier (Pennisetum purpureum) fodder is an important fodder supporting livestock systems in Bangladesh. Using gamma irradiation we developed 48 Napier fodder mutants which were analyzed through morpho-molecular characterization. Among 48 Napier fodder mutants, 41 mutants were originated by applying radiation (20Gy, 30Gy, 40Gy and 50 Gy) on them. The Napier mutants showed variations in survival rate and fresh weight. The survival rate (0-75%) was observed, 20Gy treated plants produced higher fresh weight in Napier-2, Napier-3, Rokona, Markiron grasses; whereas, 30Gy treated plants produced higher fresh weight in Napier-1, Napier-4 and Pakchong. The total of the alleles found in molecular characterization were 17 and the mean number of allele per locus was 3.4. The PIC value ranged from 0.3047 to 0.6587 having an average of 0.4704 per locus. The highest gene diversity (0.7101) was observed in primer Xipes0093 and the lowest gene diversity (0.3750) was observed in primer PSMP2255, having an average diversity of 0.5286. Pair wise genetic distance values ranged (0.0-1.0) with highest between Napier-2 40 Gy vs (Napier-1control, Napier-2 20Gy Napier-2 30Gy), Napier -3 control, vs (Napier-1control, Napier-2 20Gy Napier-2 30Gy), Napier- 3 20Gy vs (Napier-1control, Napier-2 20Gy Napier-2 30Gy) ,(Napier-3 20Gy, Napier-3 30Gy Napier-1 20Gy, Napier-3 50Gy) vs (Napier -2 20Gy, Napier-3 control, Napier-3 20Gy) etc. The UPGMA displayed five major clusters including sub-clusters. Cluster 5 included the highest number of genotypes (21) and cluster 3 included the lowest number of genotypes (2). The results may be useful for future breeding program for Napier fodder development.\u0000SAARC J. Agric., 20(2): 105-119 (2022)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87884158","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}

引用次数: 0

Evaluation of mulch practices on growth and yield of four Lisianthus (Eustoma grandiflorum) germplasm 地膜覆盖对四种桔花种质生长和产量的影响

SAARC Journal of Agriculture Pub Date : 2022-12-29 DOI: 10.3329/sja.v20i2.63577

Most Naznin Sultana, F. Khan, Asmaa Ul Husna, M. Maliha, A. Uddin

{"title":"Evaluation of mulch practices on growth and yield of four Lisianthus (Eustoma grandiflorum) germplasm","authors":"Most Naznin Sultana, F. Khan, Asmaa Ul Husna, M. Maliha, A. Uddin","doi":"10.3329/sja.v20i2.63577","DOIUrl":"https://doi.org/10.3329/sja.v20i2.63577","url":null,"abstract":"An experiment was conducted in the horticultural farm at Sher-e-Bangla Agricultural University, Dhaka to evaluate the Mulch practices on Growth and yield of four Lisianthus germplasm. The experiment consisted of four treatments (Mo: Control, Ms: Straw mulch, Mc: Cocodust mulch, Mbp: Black polythene mulch) and four Lisianthus germplasms (V1: Arena Type Pure White,V2: Double Pure White, V3: Arena Type Light Pink, V4:Super Magic Type Blue), laid out in a Randomized Complete Block Design (RCBD) with three replications. The results showed significant variations among the four varieties and different mulches. The tallest plant (71.6 cm), thickest stem (5.7 mm) and the largest flower size (70.6 mm) were found in V4 (Super magic type Blue) than others. Plants grown in Black polythene mulch (Mbp) recorded the tallest plant (65.1 cm), highest stem dia. (5.7 mm), maximum stem number (6.4), maximum number of flowers/plant (44.7) and the largest flower size (64.9 mm) than control. Based on the above parameters, the mulches are put in order as follows Mbp ≥ Mc ≥ Ms ≥ Mo. These findings may provide useful data for the improvement of sustainable flower production of Lisianthus.\u0000SAARC J. Agric., 20(2): 157-167 (2022)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"115 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85973665","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}

引用次数: 0

Assessment of the profitability and productivity of Jute-T Aman-Maize cropping pattern at char land in Jamalpur district of Bangladesh 孟加拉国贾马尔普尔地区焦地黄麻-阿曼-玉米种植模式的盈利能力和生产力评估

SAARC Journal of Agriculture Pub Date : 2022-12-29 DOI: 10.3329/sja.v20i2.63571

R. Ashrafi, K. U. Ahmed, M. Khan, Asmmr Khan

{"title":"Assessment of the profitability and productivity of Jute-T Aman-Maize cropping pattern at char land in Jamalpur district of Bangladesh","authors":"R. Ashrafi, K. U. Ahmed, M. Khan, Asmmr Khan","doi":"10.3329/sja.v20i2.63571","DOIUrl":"https://doi.org/10.3329/sja.v20i2.63571","url":null,"abstract":"People living in the char land area are considered the most disadvantaged group of people in Bangladesh. Considering the situation, a study was conducted to evaluate the feasibility of increasing income of char dwellers by following profitable cropping pattern. The treatments were CP1 (Farmers’ practice cropping pattern): Grass pea (BARI Khesari- 1)-Jute (var. JRO 524)-T. Aman (var. Swarna) and CP2 (Altered cropping pattern): Maize (var. Hybrid 981)-Jute (var. JRO 524)-T. Aman (var. Binadhan-11). A randomized complete block design with six dispersed replications was followed in this experiment. It was observed that the altered cropping pattern (CP2) produced higher rice equivalent yield (avg. 25.47 t ha-1), production efficiency (78.61 kgha-1 day-1) and gross margin US$ 3056.58 ha-1 than those of the farmer’s practice cropping pattern (CP1) rice equivalent yield (12.97 t ha-1), production efficiency (40.40 kgha-1 day- 1) and gross margin (Tk. 79,950 ha-1). Gross margin increased by 206% in altered cropping pattern compared with the existing cropping pattern, revealing that rabi crop based cropping pattern including flood damage escaping rice varieties {Maize (var. Hybrid 981)-Jute (var. JRO 524)-T. Aman (var. Binadhan-11)} is appropriate for getting higher productivity and profitability by the poor char dwellers of Jamalpur district in Bangladesh. SAARC J. Agric., 20(2): 121-131 (2022)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81936161","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}

引用次数: 0

Growth and production of monosex tilapia (Oreochromis niloticus L.) under different levels of stocking densities 不同放养密度下单性罗非鱼的生长和产量

SAARC Journal of Agriculture Pub Date : 2022-12-29 DOI: 10.3329/sja.v20i2.63585

Karuna Sapkota, Susant Mani Chaudhary, Laxmee Bhandari, M. Magar, Birendra Chaudhary, S. K. Jha, P. C. Pandey, J. Shrestha

引用次数: 0

Factors affecting the productivity of maize (Zea mays L.) in selected areas of Bangladesh 影响孟加拉国选定地区玉米(Zea mays L.)生产力的因素

SAARC Journal of Agriculture Pub Date : 2022-12-29 DOI: 10.3329/sja.v20i2.63477

Asma Yeasmin Sampa, Md Ariful Alam, H. Sammy

{"title":"Factors affecting the productivity of maize (Zea mays L.) in selected areas of Bangladesh","authors":"Asma Yeasmin Sampa, Md Ariful Alam, H. Sammy","doi":"10.3329/sja.v20i2.63477","DOIUrl":"https://doi.org/10.3329/sja.v20i2.63477","url":null,"abstract":"Though the production of maize and the area under cultivation has accelerated, the rate of increase in production is not satisfactory due to its increasing demand with the continuous expansion of the dairy and poultry sectors in Bangladesh. The intended study aimed to identify the factors affecting the production of maize and whether the resources were utilized optimally in the production process. Required data were gathered from 130 maize growers, who were taken through simple random sampling from two districts, Manikganj and Rajshahi, of Bangladesh, through the interview with a pretested questionnaire. The impact of several factors on the productivity of maize was computed with the help of the Cobb-Douglas production function. The study revealed a significant positive impact of seed, land preparation, fertilizer and water management on the final output of maize. Although maize cultivators earned a decent profit, inefficient uses of resources were practiced. Seed and fertilizer were underutilized while labour was over-utilized in the production process. The sampling frame was selected purposively to represent the intensive maize producing area. Farmers shifted to maize cultivation progressively but the high price of seeds, natural calamities and low price of grains may affect production in future.\u0000SAARC J. Agric., 20(2): 93-104 (2022)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91127642","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}

引用次数: 1

Host range of rugose spiraling whitefly, (Aleurodicus rugioperculatus) martin and its incidence and damage on coconut plant in coastal region of Bangladesh 孟加拉沿海地区穗状白蝇的寄主范围及其对椰子植物的危害

SAARC Journal of Agriculture Pub Date : 2022-12-29 DOI: 10.3329/sja.v20i2.63580

Md. Mohasin Hussain Khan

{"title":"Host range of rugose spiraling whitefly, (Aleurodicus rugioperculatus) martin and its incidence and damage on coconut plant in coastal region of Bangladesh","authors":"Md. Mohasin Hussain Khan","doi":"10.3329/sja.v20i2.63580","DOIUrl":"https://doi.org/10.3329/sja.v20i2.63580","url":null,"abstract":"Rugose spiraling whitefly, Aleurodicus rugioperculatus Martin (Hemiptera: Aleyrodidae) is an invasive pest causing severe damage to several plant species. Surveys were conducted in the farmers’ orchards of 11 coastal districts of Bangladesh namely Patuakhali, Barguna, Barishal, Khulna, Bagherhat, Pirojpur, Jhalokathi, Bhola, Laxmipur, Noakhali and Cox’s Bazar to know the host range of rugose spiraling whitefly and its incidence and damage in coconut during July 2021 to June 2022. Results revealed that a total of 22 plant species from 16 families were recorded as hosts of A. rugioperculatus. Among the host plants 4 hosts were infested by A. rugioperculatus in which all the life stages such as egg spirals, nymphs and adults of whitefly were noticed whereas in other 18 host plants only the egg stages were observed. The highest incidence of whitefly egg spirals, nymphs and adults per leaflet of coconut was observed in September 2021 at Bagherhat followed by October, November and May 2022 while the lowest was in July 2021 at Cox’s Bazar followed by June, January, February 2022 and December 2021. The highest percent (97%) infested tree was recorded in Bagherhat district while the lowest percent infested tree (68%) was in Cox’s Bazar. The highest percent (96.23%) of infested fronds per tree were recorded in Bagherhat district and the lowest percent infested fronds per tree (67.23%) was in Cox’s Bazar. The highest percent (84%) of leaflet area occupied by this insect was recorded in Bagherhat and the lowest percent was in Cox’s Bazar (48%).\u0000SAARC J. Agric., 20(2): 183-197 (2022)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73193922","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}

引用次数: 0

Sugarcane growth in India: Problems and prospects 印度甘蔗种植:问题与前景

SAARC Journal of Agriculture Pub Date : 2022-12-29 DOI: 10.3329/sja.v20i2.63575

JV Arun, A. Premkumar

{"title":"Sugarcane growth in India: Problems and prospects","authors":"JV Arun, A. Premkumar","doi":"10.3329/sja.v20i2.63575","DOIUrl":"https://doi.org/10.3329/sja.v20i2.63575","url":null,"abstract":"Sugarcane is one of the most important cash crops in India. India being a major consumer of sugar occupies the second place in sugarcane production, next to Brazil. In recent times, sugarcane has become a preferred crop for renewable and eco-friendly energy production. Excepted rise in demand for energy has improved the scope of sugarcane production. In this backdrop, the study focuses on the trend and growth of production area, production and productivity of sugarcane crop in India for the period 2001-02 to 2017-18. The relationship between harvested area and production is tested with the help of a regression model. Apart from that, the study analyzes the state wise growth rate of sugarcane sector. The study is based on secondary data collected from various government reports and publications. The result highlights that all the three variables under consideration witness positive growth rate. About 65% of the production comes from two states, Uttar Pradesh and Maharashtra. Comparatively states falling under tropical region have higher yield per hectare than states of sub-tropical region. Finally, to an extent, this paper suggests ways to improve sugarcane productivity.\u0000SAARC J. Agric., 20(2): 133-144 (2022)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"78 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73615253","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}

引用次数: 1

Phosphorus dose and potassium source on yield and export quality of potato 磷剂量和钾源对马铃薯产量和出口品质的影响

SAARC Journal of Agriculture Pub Date : 2022-12-29 DOI: 10.3329/sja.v20i2.63581

T. Roy, S. Roy, R. Chakraborty, M. Mostofa, B. C. Kundu

{"title":"Phosphorus dose and potassium source on yield and export quality of potato","authors":"T. Roy, S. Roy, R. Chakraborty, M. Mostofa, B. C. Kundu","doi":"10.3329/sja.v20i2.63581","DOIUrl":"https://doi.org/10.3329/sja.v20i2.63581","url":null,"abstract":"In Bangladesh, potato (Solanum tuberosum L.) lacks optimum quality for export or processing industries. Optimum utilization of specific plant nutrients can improve quality. The experiment was conducted to evaluate the best dose(s) of phosphorus in combination with potassium sources as they affect potato tuber quality. The experiment consisted the factors: phosphorus dose(4); P1 = 200 kg ha-1 TSP @ 42.55 kg ha-1 P; P2 = 220 kg ha-1 TSP @ 46.81 kg ha-1 P, P3 = 240 kg ha-1 TSP @ 51.06 kg ha-1 P and P4 = 260 kg ha-1 TSP @ 55.32 kg ha-1 P, and potassium sources (3); K1= KCl (250 kg ha-1 KCl @130 kg ha-1 K), K2 = KH2PO4 (452.19 kg ha-1 KH2PO4 @130 kg ha-1 K) and K3 = K2SO4 (288.6 kg ha-1 K2SO4 @130 kg ha-1 K). The interaction of phosphorus doses and potassium sources affected most parameters studied. The highest yield (35.35 t ha-1), caned (10.35 t ha-1), chips (28.06 t ha-1), and French fry (0.367 t ha-1) were from P3K2, P4K2, P3K2, P3K1 respectively; the lowest yield (30.90 t ha-1), caned (5.59 t ha-1) and chips (20.01 t ha-1) were from P1K3, P4K1, P1K3 respectively. The highest dry matter (22.85%), starch (17.936%), antioxidant (630.12 Trolox μMol/100 g FW), and polyphenol (92.994 GA mg/100 g FW) were from P1K3; the lowest reducing sugar (0.1713 mg g-1 FW) and non-reducing sugar (0.3290 mg g-1 FW) were from P1K3. It appeared that 200 kg ha-1 TSP @ 42.55 kg ha-1 P as a dose of phosphorus and K2SO4 as sources of potassium may be a suitable combination to produce export and processing quality potato.\u0000SAARC J. Agric., 20(2): 199-210 (2022)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"64 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85776582","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}

引用次数: 0

Fertilizer demand-supply gap and avenues for policy revisits in Nepal 尼泊尔肥料供需缺口和政策重访途径

SAARC Journal of Agriculture Pub Date : 2022-12-29 DOI: 10.3329/sja.v20i2.63583

Shriniwas Gautam, Y. K. Gaihre, G. Acharya, Prabin Dongol, D. Choudhary

{"title":"Fertilizer demand-supply gap and avenues for policy revisits in Nepal","authors":"Shriniwas Gautam, Y. K. Gaihre, G. Acharya, Prabin Dongol, D. Choudhary","doi":"10.3329/sja.v20i2.63583","DOIUrl":"https://doi.org/10.3329/sja.v20i2.63583","url":null,"abstract":"Nepal's farmers report fertilizer shortages yearly, especially for rice, wheat, and maize production. A reliable and established approach to estimating the actual demand for fertilizers for different crops and cropping seasons is lacking. Therefore, it is difficult to project the types and quantity of fertilizer to import and allocate across various regions in the country. With the direct involvement of the Government of Nepal (GoN) in fertilizer import, price (subsidy), and distribution, together with the high affinity of farmers for the subsidy, there is no incentive for the private sector to import and distribute fertilizers. Thus, farmers’ access to fertilizers in the country depends primarily on the subsidy budget, quantity and types of fertilizers imported, and their distribution management. In this study, the fertilizer demands, both at the national and sub-national levels, were estimated through a survey of cooperatives that distribute subsidized fertilizers in the country. Our estimate suggests that the fertilizer supplied in 2018/19 was only 60% of the total effective demand in the country. With this estimate of the demand-supply gap and the price variability across provinces, short, medium, and long-term policy recommendations are made to improve the supply of chemical fertilizer in the country\u0000SAARC J. Agric., 20(2): 223-234 (2022)","PeriodicalId":21319,"journal":{"name":"SAARC Journal of Agriculture","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78834188","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}

引用次数: 0

Collective impacts of LPGOD plasma and plasma activated water treatment in rice (Oryza sativa L.) LPGOD等离子体和等离子体活化水处理对水稻的集体影响

SAARC Journal of Agriculture Pub Date : 2022-12-29 DOI: 10.3329/sja.v20i2.63448

M. Rashid, M. Alam, M. Talukder

引用次数: 1