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GENETIC DIVERGENCE ANALYSIS IN DOLICHOS BEAN (Dolichos lablab L.) FOR CHHATTISGARH PLAINS

KrishiKosh

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Title GENETIC DIVERGENCE ANALYSIS IN DOLICHOS BEAN (Dolichos lablab L.) FOR CHHATTISGARH PLAINS
 
Creator Patel, Kanhaiya Lal
 
Contributor Sharma, G.L.
Verma, Satish
Mehta, Nandan
Saxena, Ravi R.
 
Subject GENETIC DIVERGENCE ANALYSIS,DOLICHOS BEAN (Dolichos lablab L.),CHHATTISGARH
Horticulture
 
Description The present investigation was carried out at Department of Horticulture, under All India Coordinated Research Project on Vegetable Crops, Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.) during kharif and Rabi season of 2009-10.The experimental material comprised of sixty-three genotypes of Dolichos bean and the experiment was laid out in Randomised Block Design with four replications. Data were analysed to work out the variability, heritability, genetic advance, path analysis, correlation coefficients and genetic divergence for the characters viz., days to first flowering, days to 50 per cent flowering, leaf length (cm), leaf width (cm), inflorescence length (cm), number of flower per inflorescence, pedicel length (cm), number of pod per inflorescence, pod length (cm), pod width (cm), number of pods per plant, number of seeds per pod, hundred seed weight (g) and pod yield per plant (kg).
The mean performance for marketable green pod yield per plant, pod length and inflorescence length of IS-02 was superior among all the genotypes. Number of flower per inflorescence was maximum in IS-38, as well as number of pod per inflorescence was maximum in IS-08. Like wise hundred seed weight was maximum in IS-04.The entry IS-37 was recorded largest pod width whereas national check Swarna Utkrishti showed optimum seed index among all the genotypes.
The analysis of variance revealed that the high genotypic and phenotypic coefficient of variation were recorded for leaf length (cm), leaf width (cm), inflorescence length (cm), number of flower per inflorescence, pod length (cm), pod width (cm), number of pod per plant, hundred seed weight (g) and pod yield per plant (kg). It was also revealed that relative magnitude of phenotypic coefficient of variation was higher than the genotypic coefficient of variation under the study.
Correlation and path analysis revealed that number of pod per plant influenced the green pod yield per plant (kg) with high direct effect and significant positive correlation therefore, number of pod per plant is an important trait which may be utilized as selection criterion in the dolichos bean improvement programme for Chhattisgarh plains. Other important traits which could be utilized for Dolichos bean improvement are hundred seed weight and number of flower per inflorescence.
The divergence analysis revealed the presence of appreciable amount of genetic diversity in the tested genotypes. Sixty three genotypes were grouped into six clusters. The intra and inter cluster distance were computed for all the clusters. The result indicated that the genotypes belongs the cluster II viz. IS-02, IS-04, IS-28 and IS-38 may be utilized as parents for hybridization in future breeding programmes
 
Date 2016-12-07T15:49:36Z
2016-12-07T15:49:36Z
2010
 
Type Thesis
 
Identifier 102 p.
http://krishikosh.egranth.ac.in/handle/1/89635
 
Language en
 
Format application/pdf
 
Publisher Indira Gandhi Krishi Vishwavidyalaya, Raipur