TY  - BOOK
AU  - Salu Appan B 
AU  - Suma Bai D I (Guide)
TI  - Quantitative Variation and Genetic Divergence in Fodder Rice Bean [Vigna Umbellata (Thunb.) Ohwi and Ohashi]
U1  - 630.28 
PY  - 2002///
CY  -  Vellayani
PB  - Department of Plant Breeding and Genetics, College of Agriculture
N2  - I\. research programme was carried out at the Department of Plant 
Breeding and Genetics, College of Agriculture, Vellayani during 1999-2000 
with the objective of estimating the variability in the important economic 
characters and the genetic divergence among the accessions in order to group 
them into clusters based on the magnitude of genetic distance using 
Mahalanobis 02 statistic. The experiment was conducted using 60 accessions 
adopting a randomised block design with two replications. Data collected on 
eleven characters were subjected to statistical analysis. Coefficient of 
variation, heritability, genetic advance, correlation among the characters, path 
coefficient and genetic divergence were estimated. 
Analysis of variance revealed significant differences among the 
accessions for all the characters except duration of the crop. Phenotypic and 
genotypic coefficient of variation were high for leaf weight per plant, number 
of leaves per plant and green fodder yield. I ligh heritability coupled with high 
genetic advance was observed for plant height, leaf weight per plant, green 
fodder yield and dry fodder yield. 
Correlation studies indicated that plant height, number of leaves per 
plant, leaf area index, leaf weight per plant, dry fodder yield and crude fibre 
content exhibited significant positive correlation with green fodder yield. 
 

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Leaf weight per plant exhibited the highest positive direct effect on 
green fodder yield followed by plant height. Number of branches per plant 
and leaf area index recorded negative direct effect on green fodder yield. 
Based on the genetic distances computed with respect to ten characters 
studied, the 60 accessions of fodder rice bean were grouped into five clusters 
while accessions LRB 235, LRB 221, LRB 225, RBL 118 and LRB 145 
remained as single. Maximum divergence was obtained between C4 and CID 
while divergence was minimum between Cl and C3. Hence, selection of 
parents from C4 and CIO will be effective [or an overall improvement of 
fodder yield. 
 

viii 


UR  - https://krishikosh.egranth.ac.in/handle/1/5810154084
ER  -