首页 > 最新文献

Journal of Agriculture and Environment for International Development最新文献

英文 中文
Sustainable Rice Industry in Nepal: Comparative Analysis with South Asia 尼泊尔可持续稻米产业:与南亚的比较分析
IF 0.8 Q4 AGRONOMY Pub Date : 2023-06-30 DOI: 10.3126/aej.v24i01.58199
P. Pandey, H. Pandey, Aashish Shrestha
Rice, a prime crop in Nepal and other South Asian nations, plays a crucial role in ensuring food security and socio-economic development. In Nepal’s agricultural sector, rice accounts for the largest share of the Agricultural Gross Domestic Product (AGDP), comprising approximately 20%. However, the absence of appropriate policies poses a significant challenge to the sustainable production of rice in Nepal. This study aims to assess the various policy dimensions of the sustainable rice industry in Nepal and compare them with the policy implications in neighboring South Asian countries such as India, Pakistan, and Bangladesh. The study draws on secondary sources of information for its analysis. The findings reveal that Nepal lacks a comprehensive rice policy, while its existing agriculture policy is characterized by confusion and contradictions. To attain self-sufficiency in food production, it is imperative to establish a comprehensive rice policy in Nepal and implement price subsidies on diverse inputs, as observed in neighboring countries which will ultimately contribute to enhancing the sustainability of the rice industry and promote the goal of food self-sufficiency in Nepal.
水稻是尼泊尔和其他南亚国家的主要作物,在确保粮食安全和社会经济发展方面发挥着至关重要的作用。在尼泊尔的农业部门,大米占农业国内生产总值(AGDP)的最大份额,约占20%。然而,缺乏适当的政策对尼泊尔的可持续大米生产构成了重大挑战。本研究旨在评估尼泊尔可持续水稻产业的各种政策维度,并将其与邻近的南亚国家(如印度、巴基斯坦和孟加拉国)的政策影响进行比较。这项研究利用二手信息来源进行分析。研究结果表明,尼泊尔缺乏全面的大米政策,而其现有的农业政策具有混乱和矛盾的特点。为了实现粮食生产的自给自足,必须在尼泊尔建立全面的大米政策,并对各种投入实施价格补贴,正如邻国所观察到的那样,这最终将有助于提高大米产业的可持续性,并促进尼泊尔粮食自给自足的目标。
{"title":"Sustainable Rice Industry in Nepal: Comparative Analysis with South Asia","authors":"P. Pandey, H. Pandey, Aashish Shrestha","doi":"10.3126/aej.v24i01.58199","DOIUrl":"https://doi.org/10.3126/aej.v24i01.58199","url":null,"abstract":"Rice, a prime crop in Nepal and other South Asian nations, plays a crucial role in ensuring food security and socio-economic development. In Nepal’s agricultural sector, rice accounts for the largest share of the Agricultural Gross Domestic Product (AGDP), comprising approximately 20%. However, the absence of appropriate policies poses a significant challenge to the sustainable production of rice in Nepal. This study aims to assess the various policy dimensions of the sustainable rice industry in Nepal and compare them with the policy implications in neighboring South Asian countries such as India, Pakistan, and Bangladesh. The study draws on secondary sources of information for its analysis. The findings reveal that Nepal lacks a comprehensive rice policy, while its existing agriculture policy is characterized by confusion and contradictions. To attain self-sufficiency in food production, it is imperative to establish a comprehensive rice policy in Nepal and implement price subsidies on diverse inputs, as observed in neighboring countries which will ultimately contribute to enhancing the sustainability of the rice industry and promote the goal of food self-sufficiency in Nepal.","PeriodicalId":43365,"journal":{"name":"Journal of Agriculture and Environment for International Development","volume":"23 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90275664","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
Phytochemical Screening and Allelopathic Potential of Important Medicinal Plants Used by Dhimal Community in Urlabari Municipality 乌拉巴里市迪马族重要药用植物的化学筛选及其化感作用
IF 0.8 Q4 AGRONOMY Pub Date : 2023-06-30 DOI: 10.3126/aej.v24i01.58192
Sonika Poudel, Subodh Khanal
A study was conducted to document the major ethnobotanicals used against different ailments from Dhimal community of Urlabari Municipality. Deductive research approach employed through household survey using semi-structured questionnaire with 115 respondents for research work. Out of 23 documented plants, Cuscuta reflexa Roxb., Mimosa pudica L. , Azadirachta indica A. Juss, Achyranthes aspera L. and Acorus calamus L. were screened for further phytochemical analysis based on fidelity level. Five treatments maintained as 3 different concentrations (5, 10, and 15% of stock solution), and control were arranged in a completely randomized design with three replications for evaluating allelopathic potential where selected botanical extracts on germination, radical, and plumule growth of wheat seedlings were examined under invitro condition. Mimosa pudica L. had the highest alkaloid (15.39%), Cuscuta reflexa Roxb. had the highest terpenoid (9.17%) and Acorus calamus L. had the highest saponin (5.49%) when calculated via gravimetric method. Germination, radical and plumule growth found under control treatment were 3.24ab±0.09, 2.94a ±0.09cm and 2.70a ±0.17cm respectively. The stock solution of Acorus calamus L. with 15% concentration extract resulted in the maximum reduction of radicle length (1.14e ±0.22cm) and plumule length (1.04h ±0.17cm), along with heavily controlled germination (1.05f ±0.17) of wheat seedlings. Thus, Acorus calamus L. proved the highest allelopathic potential on wheat seedling growth indicating further investigation on other crops.
进行了一项研究,记录了乌拉巴里市Dhimal社区用于治疗不同疾病的主要民族植物药。采用演绎研究方法,采用半结构式问卷对115名回答者进行入户调查。在记录在案的23种植物中,龙葵属植物(Cuscuta reflexa Roxb)。筛选含羞草、印楝、牛膝草和菖蒲等植物,根据保真度进行进一步的植物化学分析。采用3个完全随机设计的对照和5个不同浓度处理(原液的5%、10%和15%),在体外条件下研究了植物提取物对小麦幼苗发芽、根茎和胚芽生长的化感作用。含羞草(Mimosa pudica L.)生物碱含量最高,为15.39%;其中萜类含量最高(9.17%),菖蒲皂苷含量最高(5.49%)。对照处理的萌发、根茎和子芽生长分别为3.24ab±0.09、2.94a±0.09和2.70a±0.17cm。浓度为15%的菖蒲原液对小麦幼苗的根长(1.14±0.22cm)和子叶长(1.04±0.17cm)的影响最大,对小麦幼苗的萌发(1.05±0.17)也有较大的抑制作用。由此可见,菖蒲对小麦幼苗生长的化感作用最强,对其他作物的化感作用有待进一步研究。
{"title":"Phytochemical Screening and Allelopathic Potential of Important Medicinal Plants Used by Dhimal Community in Urlabari Municipality","authors":"Sonika Poudel, Subodh Khanal","doi":"10.3126/aej.v24i01.58192","DOIUrl":"https://doi.org/10.3126/aej.v24i01.58192","url":null,"abstract":"A study was conducted to document the major ethnobotanicals used against different ailments from Dhimal community of Urlabari Municipality. Deductive research approach employed through household survey using semi-structured questionnaire with 115 respondents for research work. Out of 23 documented plants, Cuscuta reflexa Roxb., Mimosa pudica L. , Azadirachta indica A. Juss, Achyranthes aspera L. and Acorus calamus L. were screened for further phytochemical analysis based on fidelity level. Five treatments maintained as 3 different concentrations (5, 10, and 15% of stock solution), and control were arranged in a completely randomized design with three replications for evaluating allelopathic potential where selected botanical extracts on germination, radical, and plumule growth of wheat seedlings were examined under invitro condition. Mimosa pudica L. had the highest alkaloid (15.39%), Cuscuta reflexa Roxb. had the highest terpenoid (9.17%) and Acorus calamus L. had the highest saponin (5.49%) when calculated via gravimetric method. Germination, radical and plumule growth found under control treatment were 3.24ab±0.09, 2.94a ±0.09cm and 2.70a ±0.17cm respectively. The stock solution of Acorus calamus L. with 15% concentration extract resulted in the maximum reduction of radicle length (1.14e ±0.22cm) and plumule length (1.04h ±0.17cm), along with heavily controlled germination (1.05f ±0.17) of wheat seedlings. Thus, Acorus calamus L. proved the highest allelopathic potential on wheat seedling growth indicating further investigation on other crops.","PeriodicalId":43365,"journal":{"name":"Journal of Agriculture and Environment for International Development","volume":"90 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74817025","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
Effect of Transplanting Date and Spacing on Seed Production of Broccoli (Brassica oleracea var. italica Plenck) at Chitwan, Nepal 尼泊尔Chitwan地区花椰菜(Brassica oleracea var. italica Plenck)移栽日期和间距对种子产量的影响
IF 0.8 Q4 AGRONOMY Pub Date : 2023-06-30 DOI: 10.3126/aej.v24i01.58134
Saraswati Shrestha, Arvind Shribastava, Mohadatta Sharma
A study was conducted at the Agriculture and Forestry University, Rampur, Chitwan during the winter season, to find out the suitable transplanting dates and spacing for quality seed production of broccoli (Brassica oleracea var. italica) Cv. Calabrese. The experiment was laid out in split plot design with three replications, where main plot treatment consisted of transplanting dates (November 1, November 15 and November 30) and sub plot treatment consisted of spacing (60 cm × 50 cm, 60 cm × 60 cm, 60 cm × 75 cm). Since transplanting time and spacing affect vegetative traits, which are very important for seed yield. The highest seed yield (1.09 mt./ha) was obtained with November 1st planting at the spacing of 60 cm × 50 cm. So that transplanting date of November 1st with spacing 60 cm × 50 cm is better for seed production of broccoli in plain areas of Chitwan, Nepal.
为确定花椰菜(Brassica oleracea var. italica) Cv.的优质种子生产的适宜移栽日期和株距,在Chitwan Rampur的农林大学进行了冬季研究。花茎甘蓝。试验采用3个重复的分割小区设计,其中主小区处理为移栽日期(11月1日、11月15日和11月30日),子小区处理为间距(60 cm × 50 cm、60 cm × 60 cm、60 cm × 75 cm)。移栽时间和移栽间距对种子产量有重要影响。11月1日播种时,种植间距为60 cm × 50 cm,种子产量最高,为1.09 mt / hm2。因此,在尼泊尔奇旺平原地区,以11月1日插秧60 cm × 50 cm为宜。
{"title":"Effect of Transplanting Date and Spacing on Seed Production of Broccoli (Brassica oleracea var. italica Plenck) at Chitwan, Nepal","authors":"Saraswati Shrestha, Arvind Shribastava, Mohadatta Sharma","doi":"10.3126/aej.v24i01.58134","DOIUrl":"https://doi.org/10.3126/aej.v24i01.58134","url":null,"abstract":"A study was conducted at the Agriculture and Forestry University, Rampur, Chitwan during the winter season, to find out the suitable transplanting dates and spacing for quality seed production of broccoli (Brassica oleracea var. italica) Cv. Calabrese. The experiment was laid out in split plot design with three replications, where main plot treatment consisted of transplanting dates (November 1, November 15 and November 30) and sub plot treatment consisted of spacing (60 cm × 50 cm, 60 cm × 60 cm, 60 cm × 75 cm). Since transplanting time and spacing affect vegetative traits, which are very important for seed yield. The highest seed yield (1.09 mt./ha) was obtained with November 1st planting at the spacing of 60 cm × 50 cm. So that transplanting date of November 1st with spacing 60 cm × 50 cm is better for seed production of broccoli in plain areas of Chitwan, Nepal.","PeriodicalId":43365,"journal":{"name":"Journal of Agriculture and Environment for International Development","volume":"1 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75303502","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 Different Growing Media for Tomato and Sweet Pepper Seedlings Raising in Pokhara, Nepal 尼泊尔博卡拉地区番茄和甜椒不同育苗培养基的评价
IF 0.8 Q4 AGRONOMY Pub Date : 2023-06-30 DOI: 10.3126/aej.v24i01.58176
S. Lohani, Saroj Adhikari, L. Aryal, Y. Bhusal, Manahar Kadariya, Sunil Aryal
Nine different compositions of growing media were evaluated for growing tomato and capsicum in two consecutive years (2020 and 2021). Experiments were conducted in Randomized Complete Block Design (RCBD) under rain shelter (poly house) with three replications. The growing media were Cocopeat, FYM+Cocopit+Perlite, FYM+ Cocopit+Vermiculite, FYM+Perlite, FYM+Soil, FYM+Vermiculite, Vermicompost+Perlite, Vermicompost +Soil and Vermicompost+Vermiculite. There were significant (P<0.05) differences in the observed parameters like number of seedlings emergence, number of seedling establishment, number of leaves, seedling height and diameter of seedling stem among the tested growing media. The highest seedling emergence of tomato and sweet pepper were recorded in cocopeat as a growing media. After 30 days after seed sowing (DAS) in tomato, the highest number of seedling (103.5) were found in Cocopeat and the tallest seedling height (19.92 cm) was found in Vermicompost+ perlite. Similarly, in Capsicum (40DAS), the highest number of seedling (83.5) were found for the growing media Cocopeat only, followed by Vermicompost + Perlite (78) and the tallest seedling height (13.89 cm) was found in Vermicompost+Vermiculite grown seedlings. The good root plug formation was found for the use of cocopeat. Therefore, use of vermicompost or FYM in the mixed form with cocopeat or the soil as a growing media would be sustainable technology for commercial seedling production of vegetables.
对番茄和辣椒连续2年(2020年和2021年)9种不同培养基组成进行了评价。试验采用随机完全区组设计(RCBD),设3个重复。生长介质为cocopre、FYM+Cocopit+珍珠岩、FYM+Cocopit+蛭石、FYM+珍珠岩、FYM+土壤、FYM+蛭石、蚯蚓堆肥+珍珠岩、蚯蚓堆肥+土壤和蚯蚓堆肥+蛭石。不同培养基的出苗数、建立苗数、叶片数、苗高、苗茎直径等观测参数差异均显著(P<0.05)。番茄和甜椒出苗率最高的培养基是椰肉。播种30 d后,cocopin的苗数最多,为103.5株,蚯蚓堆肥+珍珠岩的苗高最高,为19.92 cm。在辣椒(40DAS)中,仅cocopite培养基的幼苗数最多(83.5株),其次是蚯蚓堆肥+珍珠岩(78株),而蚯蚓堆肥+蛭石的幼苗高度最高(13.89 cm)。发现椰子油具有良好的根栓形成条件。因此,使用蚯蚓堆肥或FYM与鸡粪或土壤混合作为生长介质将是蔬菜商业苗木生产的可持续技术。
{"title":"Evaluation of Different Growing Media for Tomato and Sweet Pepper Seedlings Raising in Pokhara, Nepal","authors":"S. Lohani, Saroj Adhikari, L. Aryal, Y. Bhusal, Manahar Kadariya, Sunil Aryal","doi":"10.3126/aej.v24i01.58176","DOIUrl":"https://doi.org/10.3126/aej.v24i01.58176","url":null,"abstract":"Nine different compositions of growing media were evaluated for growing tomato and capsicum in two consecutive years (2020 and 2021). Experiments were conducted in Randomized Complete Block Design (RCBD) under rain shelter (poly house) with three replications. The growing media were Cocopeat, FYM+Cocopit+Perlite, FYM+ Cocopit+Vermiculite, FYM+Perlite, FYM+Soil, FYM+Vermiculite, Vermicompost+Perlite, Vermicompost +Soil and Vermicompost+Vermiculite. There were significant (P<0.05) differences in the observed parameters like number of seedlings emergence, number of seedling establishment, number of leaves, seedling height and diameter of seedling stem among the tested growing media. The highest seedling emergence of tomato and sweet pepper were recorded in cocopeat as a growing media. After 30 days after seed sowing (DAS) in tomato, the highest number of seedling (103.5) were found in Cocopeat and the tallest seedling height (19.92 cm) was found in Vermicompost+ perlite. Similarly, in Capsicum (40DAS), the highest number of seedling (83.5) were found for the growing media Cocopeat only, followed by Vermicompost + Perlite (78) and the tallest seedling height (13.89 cm) was found in Vermicompost+Vermiculite grown seedlings. The good root plug formation was found for the use of cocopeat. Therefore, use of vermicompost or FYM in the mixed form with cocopeat or the soil as a growing media would be sustainable technology for commercial seedling production of vegetables.","PeriodicalId":43365,"journal":{"name":"Journal of Agriculture and Environment for International Development","volume":"158 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77138539","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
Satellite Remote Sensing of Rice Crops in Nepal : A Review 尼泊尔水稻作物卫星遥感研究综述
IF 0.8 Q4 AGRONOMY Pub Date : 2023-06-30 DOI: 10.3126/aej.v24i01.58193
Keshav Thapa Magar
Remote sensing, based on satellite data, is useful in studying rice crops for their several parameters such as cropped area, crop-coverage, growth stages, production, yield estimation and other statistics useful in scientific investigations. Despite some satellite-remote-sensing based researches have been reported in the country, such appliance in agricultural studies is very sparse in Nepal. In the current situation, Nepal could benefit from remote sensing technology for betterment of its agricultural planning and development specifically in the rice sub-sector for its national economic and food security importance. This review article is an attempt to highlight the importance of rice remote sensing in Nepal and list research articles in the field as bookmarks to benefit future rice researchers and interested readership.
基于卫星数据的遥感在研究水稻作物的几个参数方面是有用的,这些参数包括种植面积、作物覆盖、生长阶段、产量、产量估计和其他对科学调查有用的统计数据。尽管尼泊尔报告了一些基于卫星遥感的研究,但在农业研究中这种应用非常少。在目前的情况下,尼泊尔可以受益于遥感技术,以改善其农业规划和发展,特别是在水稻分部门,因为它对国家经济和粮食安全具有重要意义。这篇综述文章试图强调尼泊尔水稻遥感的重要性,并列出该领域的研究文章作为书签,以造福未来的水稻研究人员和感兴趣的读者。
{"title":"Satellite Remote Sensing of Rice Crops in Nepal : A Review","authors":"Keshav Thapa Magar","doi":"10.3126/aej.v24i01.58193","DOIUrl":"https://doi.org/10.3126/aej.v24i01.58193","url":null,"abstract":"Remote sensing, based on satellite data, is useful in studying rice crops for their several parameters such as cropped area, crop-coverage, growth stages, production, yield estimation and other statistics useful in scientific investigations. Despite some satellite-remote-sensing based researches have been reported in the country, such appliance in agricultural studies is very sparse in Nepal. In the current situation, Nepal could benefit from remote sensing technology for betterment of its agricultural planning and development specifically in the rice sub-sector for its national economic and food security importance. This review article is an attempt to highlight the importance of rice remote sensing in Nepal and list research articles in the field as bookmarks to benefit future rice researchers and interested readership.","PeriodicalId":43365,"journal":{"name":"Journal of Agriculture and Environment for International Development","volume":"50 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83649893","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
Molecular Identification of Coffea Arabica Varieties in Nepal: Insights from Phylogenetic Analysis 尼泊尔阿拉比卡咖啡品种的分子鉴定:来自系统发育分析的见解
IF 0.8 Q4 AGRONOMY Pub Date : 2023-06-30 DOI: 10.3126/aej.v24i01.58187
G. Pandey, Shreejana Pokharel, Samsher Basnet, Anish Basnet, A. Mainali, Sadikshya Rijal, Asmita Shrestha, Bignya Chandra Khanal
This study aimed to identify and characterize the coffee varieties cultivated in Nepal using molecular phylogenetic analysis. The molecular identification and genetic relationship of twenty five coffee varieties were collected from the Nepal Coffee Development Center, Gulmi, Nepal. DNA was isolated from leaf tissue, and Internal Transcribed Spacers Region (ITS)-specific PCR was performed, followed by sequencing and phylogenetic tree construction. BLASTN was performed to identify the similarities with the sequences of the National Center for Biotechnology Information (NCBI) Database. Evolutionary divergence between the sequences was computed using Maximum Composite Likelihood Model. Sequences were analyzed using Maximum Likelihood Model and Tamura-Nei model to construct molecular phylogeny. BLASTN and molecular phylogeny confirm all the samples to be Coffea arabica. Evolutionary divergence in pairwise comparison was found to be 0% to 4.3%. Divergence of 4.3% was detected between CDC-S21 and CDC-S73. With this, we identified the coffee samples to be C. arabica and we also computed relatedness among our varieties.
本研究旨在利用分子系统发育分析鉴定和表征尼泊尔种植的咖啡品种。对尼泊尔咖啡开发中心收集的25个咖啡品种进行了分子鉴定和亲缘关系分析。从叶片组织中分离DNA,进行ITS特异性PCR,测序并构建系统发育树。采用BLASTN方法鉴定与国家生物技术信息中心(NCBI)数据库序列的相似性。利用最大复合似然模型计算了序列间的进化差异。利用极大似然模型和Tamura-Nei模型对序列进行分析,构建分子系统发育。BLASTN和分子系统发育证实所有样品都是阿拉比卡咖啡。两两比较的进化差异为0% ~ 4.3%。CDC-S21与CDC-S73的差异为4.3%。有了这个,我们确定了咖啡样品是阿拉比卡咖啡,我们也计算了我们品种之间的相关性。
{"title":"Molecular Identification of Coffea Arabica Varieties in Nepal: Insights from Phylogenetic Analysis","authors":"G. Pandey, Shreejana Pokharel, Samsher Basnet, Anish Basnet, A. Mainali, Sadikshya Rijal, Asmita Shrestha, Bignya Chandra Khanal","doi":"10.3126/aej.v24i01.58187","DOIUrl":"https://doi.org/10.3126/aej.v24i01.58187","url":null,"abstract":"This study aimed to identify and characterize the coffee varieties cultivated in Nepal using molecular phylogenetic analysis. The molecular identification and genetic relationship of twenty five coffee varieties were collected from the Nepal Coffee Development Center, Gulmi, Nepal. DNA was isolated from leaf tissue, and Internal Transcribed Spacers Region (ITS)-specific PCR was performed, followed by sequencing and phylogenetic tree construction. BLASTN was performed to identify the similarities with the sequences of the National Center for Biotechnology Information (NCBI) Database. Evolutionary divergence between the sequences was computed using Maximum Composite Likelihood Model. Sequences were analyzed using Maximum Likelihood Model and Tamura-Nei model to construct molecular phylogeny. BLASTN and molecular phylogeny confirm all the samples to be Coffea arabica. Evolutionary divergence in pairwise comparison was found to be 0% to 4.3%. Divergence of 4.3% was detected between CDC-S21 and CDC-S73. With this, we identified the coffee samples to be C. arabica and we also computed relatedness among our varieties.","PeriodicalId":43365,"journal":{"name":"Journal of Agriculture and Environment for International Development","volume":"9 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81526702","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
Nepalese Fine and Aromatic Rice Landraces: A Review 尼泊尔香米地方品种综述
IF 0.8 Q4 AGRONOMY Pub Date : 2023-06-30 DOI: 10.3126/aej.v24i01.58190
K. Rayamajhi, Bishwas Malla Thakuri
With the recent issue of Geographical Indication (GI) tag claim by India on Basmati rice, Nepalese rice sector got an urgent call to conserve and promote fine and aromatic rice landraces. Fine, medium, coarse landraces were further classified into aromatic and non-aromatic. Some of the aromatic landraces popularized by their local dialect names as Basmati anadi, Basmati anpjhutte, Choti basmati, etc. were cultivated in diverse environment by local farmers but utilization in national rice improvement program is insufficient. Just handful of landraces were used as parental lines to develop improved varieties viz. Jarneli in Khumal-2, Pokhreli masino in Khumal 4, Khumal -5 and Palung 2, pureline of Jethobudho as Pokhreli jethobudho, pureline of Lalkabasmati as Lalkabasmati. With the prevailing trend of fast-track registration of the exotic improved lines, our grassroots level efforts to study the genetic makeup and unique attributes of our landraces are overshadowed. However, Jarneli, Kalo marshi, Kalo nuniya, Mansara, etc. were found to be popular for traits nutritious, medicinal, abiotic stress tolerance and resilience to low fertility soil. Furthermore, the modern tools of molecular characterization are yet to be utilized prominently to identify such valuable genes and understand their phylogenetic diversity rewarding for future rice breeding program.
随着印度最近对巴斯马蒂大米发布地理标志(GI)标签,尼泊尔大米部门接到了保护和促进优质和芳香的地方大米的紧急呼吁。细、中、粗乡土品种又分为芳香型和非芳香型。一些以当地方言命名的香型地方品种,如Basmati anadi、Basmati anpjhutte、Choti Basmati等,由当地农民在不同的环境中种植,但在国家水稻改良计划中的利用不足。只有少数地方品种作为亲本培育了改良品种,即胡玛尔2号的雅内利,胡玛尔4号、胡玛尔5号和帕隆2号的波赫里马西诺,杰索布多的纯种为波赫里杰索布多,拉卡巴斯马蒂的纯种为拉卡巴斯马蒂。随着外来良种快速注册的流行趋势,我们基层对我国地方品种基因组成和独特属性的研究工作被掩盖了。而Jarneli、Kalo marshi、Kalo nuniya、Mansara等品种则因其营养、药用、非生物耐受性和对低肥力土壤的抗逆性等特性而广受欢迎。此外,现代分子表征工具尚未被充分利用来识别这些有价值的基因,并了解它们的系统发育多样性,为未来的水稻育种计划提供帮助。
{"title":"Nepalese Fine and Aromatic Rice Landraces: A Review","authors":"K. Rayamajhi, Bishwas Malla Thakuri","doi":"10.3126/aej.v24i01.58190","DOIUrl":"https://doi.org/10.3126/aej.v24i01.58190","url":null,"abstract":"With the recent issue of Geographical Indication (GI) tag claim by India on Basmati rice, Nepalese rice sector got an urgent call to conserve and promote fine and aromatic rice landraces. Fine, medium, coarse landraces were further classified into aromatic and non-aromatic. Some of the aromatic landraces popularized by their local dialect names as Basmati anadi, Basmati anpjhutte, Choti basmati, etc. were cultivated in diverse environment by local farmers but utilization in national rice improvement program is insufficient. Just handful of landraces were used as parental lines to develop improved varieties viz. Jarneli in Khumal-2, Pokhreli masino in Khumal 4, Khumal -5 and Palung 2, pureline of Jethobudho as Pokhreli jethobudho, pureline of Lalkabasmati as Lalkabasmati. With the prevailing trend of fast-track registration of the exotic improved lines, our grassroots level efforts to study the genetic makeup and unique attributes of our landraces are overshadowed. However, Jarneli, Kalo marshi, Kalo nuniya, Mansara, etc. were found to be popular for traits nutritious, medicinal, abiotic stress tolerance and resilience to low fertility soil. Furthermore, the modern tools of molecular characterization are yet to be utilized prominently to identify such valuable genes and understand their phylogenetic diversity rewarding for future rice breeding program.","PeriodicalId":43365,"journal":{"name":"Journal of Agriculture and Environment for International Development","volume":"31 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81070327","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
Morphological Characterization of Pomegranate (Punica granatum L.) Genotypes at Dailekh 石榴的形态特征Dailekh的基因型
IF 0.8 Q4 AGRONOMY Pub Date : 2023-06-30 DOI: 10.3126/aej.v24i01.58188
B. Luitel, Asmita Khanal
Pomegranate is an emerging potential fruit crop of Nepal and it can be cultivated successfully from tropical to warm temperate climatic condition of terai to mid- hills. This research was conducted to study the morphological traits and identify the superior pomegranate genotypes at Horticulture Research Station (HRS), Dailekh in 2019. Three pomegranate genotypes (HRDPOM001, HRDPOM004 and HRDPOM004M) were studied for their growth, flowers and pomological characters. Variation in plants, flower and pomological characters was observed in pomegranate genotypes. The highest marketable fruit weight (1.4 kg/plant) produced in HRDPOM001, followed by HRDPOM004 (1.2 kg/plant). The highest aril weight (60.5%) was measured in HRDPOM004. Highest TSS (12.8°Brix) and good taste preferences were recorded in the fruits of HRDPOM004. Pomological attributes for HRDPOM004 was found better than other studied genotypes. Individual fruit weight, fruit length, and fruit diameter showed the significant positive association with total fruit weight, and selection of these traits could improve the fruit yield. Based on the major pomological attributes, HRDPOM004 was found promising and selected to cultivate at the similar agro-climatic regions of Nepal.
石榴是尼泊尔一种新兴的有潜力的水果作物,在热带到暖温带气候条件下都可以成功种植。本研究旨在研究2019年代列克园艺研究站(HRS)石榴的形态性状和优势基因型。以HRDPOM001、HRDPOM004和HRDPOM004M 3个基因型石榴为研究对象,对其生长、开花和果学性状进行了研究。研究了石榴基因型在植株、花和果实学性状上的差异。HRDPOM001的最高可售果实重量(1.4公斤/株),其次是HRDPOM004(1.2公斤/株)。HRDPOM004的假种重最高,为60.5%。HRDPOM004果实TSS最高(12.8°白利度),口感偏好好。HRDPOM004的形态学特性优于其他基因型。单果重、果长、果径与果实总重呈极显著正相关,这些性状的选择可以提高果实产量。基于主要的果学属性,HRDPOM004被认为是有前途的,并被选择在尼泊尔类似的农业气候地区种植。
{"title":"Morphological Characterization of Pomegranate (Punica granatum L.) Genotypes at Dailekh","authors":"B. Luitel, Asmita Khanal","doi":"10.3126/aej.v24i01.58188","DOIUrl":"https://doi.org/10.3126/aej.v24i01.58188","url":null,"abstract":"Pomegranate is an emerging potential fruit crop of Nepal and it can be cultivated successfully from tropical to warm temperate climatic condition of terai to mid- hills. This research was conducted to study the morphological traits and identify the superior pomegranate genotypes at Horticulture Research Station (HRS), Dailekh in 2019. Three pomegranate genotypes (HRDPOM001, HRDPOM004 and HRDPOM004M) were studied for their growth, flowers and pomological characters. Variation in plants, flower and pomological characters was observed in pomegranate genotypes. The highest marketable fruit weight (1.4 kg/plant) produced in HRDPOM001, followed by HRDPOM004 (1.2 kg/plant). The highest aril weight (60.5%) was measured in HRDPOM004. Highest TSS (12.8°Brix) and good taste preferences were recorded in the fruits of HRDPOM004. Pomological attributes for HRDPOM004 was found better than other studied genotypes. Individual fruit weight, fruit length, and fruit diameter showed the significant positive association with total fruit weight, and selection of these traits could improve the fruit yield. Based on the major pomological attributes, HRDPOM004 was found promising and selected to cultivate at the similar agro-climatic regions of Nepal.","PeriodicalId":43365,"journal":{"name":"Journal of Agriculture and Environment for International Development","volume":"69 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79109142","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
Efficacy of Chemicals and Hot Water Treatments on Quality and Shelf Life of Amrapali Variety of Mango 化学药剂和热水处理对Amrapali芒果品质和保质期的影响
IF 0.8 Q4 AGRONOMY Pub Date : 2023-06-30 DOI: 10.3126/aej.v24i01.58163
Shakar Shasi Pandey, Nirajan Bhandari, Madhav Dhital, A. Shrestha, Bishal Shrestha
An experiment was conducted to evaluate the effect of hot water and chemicals on the quality and shelf life of Amrapali variety of mango at Agriculture and Forestry University, Rampur, Chitwan, Nepal. The experiment was laid out in completely randomized design with 6 treatments and 4 replications. Physiologically matured mango fruits (200±20 g) were treated with distilled water for 10 minutes, hot water @ 50°C for 10 minutes, hot water @ 55°C for 10 minutes, carbendazim solution @ 0.1% for 10 minutes and Sodium hypochlorite solution @ 100 ppm for 2 minutes. The untreated fruits were considered as control treatment. The highest total soluble solid (18.15°Brix), the lowest physiological loss in weight (24.20%) and the lowest spoilage loss (42.05%) were observed in fruits treated with hot water at 55°C. Therefore, the post-harvest treatment of mango fruits with hot water at 55°C for 10 minutes was found to be effective for maintaining the quality and shelf life of mango.
在尼泊尔奇旺兰布尔农林大学进行了热水和化学药剂对Amrapali品种芒果品质和保质期的影响试验。试验采用完全随机设计,6个处理,4个重复。生理成熟的芒果果实(200±20 g)分别用蒸馏水、50°C热水、55°C热水、0.1%多菌灵溶液、100 ppm次氯酸钠溶液处理10分钟。未处理的果实作为对照处理。55°C热水处理的果实总可溶性固形物最高(18.15°Brix),生理重量损失最低(24.20%),腐败损失最低(42.05%)。因此,芒果果实采后用55℃的热水处理10分钟,可以有效地保持芒果的品质和保质期。
{"title":"Efficacy of Chemicals and Hot Water Treatments on Quality and Shelf Life of Amrapali Variety of Mango","authors":"Shakar Shasi Pandey, Nirajan Bhandari, Madhav Dhital, A. Shrestha, Bishal Shrestha","doi":"10.3126/aej.v24i01.58163","DOIUrl":"https://doi.org/10.3126/aej.v24i01.58163","url":null,"abstract":"An experiment was conducted to evaluate the effect of hot water and chemicals on the quality and shelf life of Amrapali variety of mango at Agriculture and Forestry University, Rampur, Chitwan, Nepal. The experiment was laid out in completely randomized design with 6 treatments and 4 replications. Physiologically matured mango fruits (200±20 g) were treated with distilled water for 10 minutes, hot water @ 50°C for 10 minutes, hot water @ 55°C for 10 minutes, carbendazim solution @ 0.1% for 10 minutes and Sodium hypochlorite solution @ 100 ppm for 2 minutes. The untreated fruits were considered as control treatment. The highest total soluble solid (18.15°Brix), the lowest physiological loss in weight (24.20%) and the lowest spoilage loss (42.05%) were observed in fruits treated with hot water at 55°C. Therefore, the post-harvest treatment of mango fruits with hot water at 55°C for 10 minutes was found to be effective for maintaining the quality and shelf life of mango.","PeriodicalId":43365,"journal":{"name":"Journal of Agriculture and Environment for International Development","volume":"10 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75795833","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
Economic Analysis of Coffee Subsector in Nepal 尼泊尔咖啡分行业的经济分析
IF 0.8 Q4 AGRONOMY Pub Date : 2023-06-30 DOI: 10.3126/aej.v24i01.58129
Indra Hari Paudel
Coffee being one of the emerging crops with high potential to export to earn foreign currency, has been given due importance by the Government of Nepal. Among different agricultural goods produced in and exported from Nepal, the competitiveness of coffee has quickly increased in recent years, thus contributing to the improvement of rural livelihoods. This study was based on review of literature and analysis of secondary data/information. Statistical tools such as correlation analysis was also used to analyze data. According to the official records coffee production area has expanded from around 135.7 ha in fiscal year 1994/95 to 3052 ha in 2020/21 and the production has increased from 12.95 Mt. of dry cherry to 315 Mt. of green beans during the same period. Nepal’s coffee subsector is characterized by low productivity, low production and poor quality. Inter alia, it was mainly due to incidence of insect pests, production done by smallholder farmers in a widely scattered area creating problems in quality control and collection leading to higher cost. The good price, high demand and overwhelmingly organic system of production are the encouraging factors but the formidable challenge remains on fighting with white stem borer and providing incentives for small holder farmers throughout the relatively long gestation period of coffee crop. Apart from low production level, organic certification and quarantine requirements pose serious challenges to export. Coffee produced in Nepal is Organic & Fair-trade and is readily accepted as a Specialty Coffee in specific international markets.
咖啡是一种新兴作物,具有很高的出口赚取外汇的潜力,尼泊尔政府对此给予了应有的重视。在尼泊尔生产和出口的各种农产品中,咖啡的竞争力近年来迅速提高,从而有助于改善农村生计。本研究基于文献回顾和二手数据/信息分析。相关分析等统计工具也被用于分析数据。根据官方记录,咖啡生产面积已从1994/95财政年度的约135.7公顷扩大到2020/21财政年度的3052公顷,同期干樱桃的产量从12.95亿吨增加到31.5亿吨绿豆。尼泊尔咖啡分部门的特点是生产率低、产量低、质量差。除其他外,这主要是由于虫害的发生,小农户在广泛分散的地区进行生产,造成质量控制和收集方面的问题,导致成本较高。良好的价格、高需求和压倒性的有机生产系统是令人鼓舞的因素,但在与白茎螟虫的斗争以及在咖啡作物相对较长的酝酿期为小农户提供激励措施方面,仍然存在巨大的挑战。除了生产水平低外,有机认证和检疫要求对出口构成严重挑战。尼泊尔生产的咖啡是有机和公平贸易的,在特定的国际市场上很容易被接受为专业咖啡。
{"title":"Economic Analysis of Coffee Subsector in Nepal","authors":"Indra Hari Paudel","doi":"10.3126/aej.v24i01.58129","DOIUrl":"https://doi.org/10.3126/aej.v24i01.58129","url":null,"abstract":"Coffee being one of the emerging crops with high potential to export to earn foreign currency, has been given due importance by the Government of Nepal. Among different agricultural goods produced in and exported from Nepal, the competitiveness of coffee has quickly increased in recent years, thus contributing to the improvement of rural livelihoods. This study was based on review of literature and analysis of secondary data/information. Statistical tools such as correlation analysis was also used to analyze data. According to the official records coffee production area has expanded from around 135.7 ha in fiscal year 1994/95 to 3052 ha in 2020/21 and the production has increased from 12.95 Mt. of dry cherry to 315 Mt. of green beans during the same period. Nepal’s coffee subsector is characterized by low productivity, low production and poor quality. Inter alia, it was mainly due to incidence of insect pests, production done by smallholder farmers in a widely scattered area creating problems in quality control and collection leading to higher cost. The good price, high demand and overwhelmingly organic system of production are the encouraging factors but the formidable challenge remains on fighting with white stem borer and providing incentives for small holder farmers throughout the relatively long gestation period of coffee crop. Apart from low production level, organic certification and quarantine requirements pose serious challenges to export. Coffee produced in Nepal is Organic & Fair-trade and is readily accepted as a Specialty Coffee in specific international markets.","PeriodicalId":43365,"journal":{"name":"Journal of Agriculture and Environment for International Development","volume":"4 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75139617","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
期刊
Journal of Agriculture and Environment for International Development
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1