豆(dolichos lablab L.var)生长、荚果品质和产量性状的遗传分化、变异、遗传力和遗传进展。典型植物)种质

IF 0.8 4区 生物学 Q3 AGRONOMY Legume Research Pub Date : 2018-05-05 DOI:10.18805/LR-3952
K. Jyothireddy, B. Prabhakar, P. Saidaiah, S. Pandravada
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引用次数: 1

摘要

2016年8月至2017年3月,在海得拉巴Rajendranagar农业研究所蔬菜研究站对35个基因型豆种质系进行了遗传分化、变异、遗传力和遗传进展评估。根据D2值的相对大小将35个基因型分为6个聚类。聚类ⅱ基因型最多(15个)。聚类III和聚类VI之间的簇间距离最大(D2=1780.19)。聚类II和聚类IV之间的簇间距离最小(D2 =333.46)。聚类IV的簇内距离最大(D2=249.64)。其中单株荚果产量对分化的贡献最大(26.21%)。15个性状遗传力高,单株一手枝数、单荚种子数、种子宽度和百粒干重遗传力中等。在藤长、开花期、荚果长、荚果宽、荚果重、单株荚果数、种子长、种子宽、百鲜重、蛋白质含量、纤维含量和单株荚果产量等性状上,均有较高的遗传进步和遗传率。因此,在对品种进行多位点径迹改良的同时,应对上述性状给予适当的重视。
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Genetic divergence, variability, heritability and genetic advance for growth, pod quality and yield characters in dolichos bean (Dolichos lablab L.var. typicus Prain) germplasm
Thirty five genotypes of dolichos bean germplasm lines were evaluated for genetic divergence, variability, heritability and genetic advance at Vegetable Research Station, Agriculture Research Institute, Rajendranagar, Hyderabad during August, 2016 to March, 2017. Thirty five genotypes were grouped into six clusters based on the relative magnitude of D2 values. The highest number of genotypes (15) appeared in cluster II. The maximum inter cluster distance was observed between cluster III and cluster VI (D2=1780.19).The minimum inter cluster distance was observed between cluster II and cluster IV (D2 =333.46). Maximum intra cluster distance was in cluster IV (D2=249.64). Among the characters, the maximum contribution towards divergence was made by pod yield per plant (26.21%). High heritability estimates were observed for 15 characters and medium heritability was observed for primary branches per plant, number of seeds per pod, seed breadth and 100 dry seed weight. High genetic advance along with relatively high heritability percent were observed for vine length, days to first flowering, pod length, pod width, pod weight, number of pods per plant, seed length, seed breadth, 100 fresh seed weight, protein content, fibre content and pod yield per plant. Hence, due weightage should be given to the above traits, while selection is practiced for multilocation trails improvement of varieties.
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来源期刊
Legume Research
Legume Research AGRONOMY-
CiteScore
1.30
自引率
37.50%
发文量
256
审稿时长
6-12 weeks
期刊介绍: Legume Research An International Journal. The Journal is an official publication of Agricultural Research Communication Centre. It is designed to bring out the original research articles on genetics, breeding, physiology, bacterial avtivity, production, quality, biochemistry and seeds of legumes crops. The objective of the journal is to serve as a forum for scientific community to publish their research findings on legumes ans to provide basis for new research. Journal is being scanned in the important indexing and abstracting services.
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