GENETIC EVALUATION OF GARDEN PEA GENOTYPES
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Date
2020-11
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NAUNI,UHF
Abstract
ABSTRACT
The present investigations entitled “Genetic Evaluation of Garden Pea Genotypes” was
conducted at the Regional Horticultural Research and Training Station, Bajaura, Kullu (H.P.) during
Rabi season of 2018-19 and 2019-20 to evaluate the germplasm, assess the nature of variability in the
germplasm, to study correlation among various traits and to evaluate the direct and indirect effect of
these traits on yield for effective selection and to study the genetic diversity present in the germplasm.
The experiment was laid out in a Randomized Complete Block Design (RCBD) with three
replications. Thirty genotypes along with one check variety i.e. Pb-89 were evaluated for testing the
performance of each genotype for yield and other important horticultural traits. Significant differences
among the genotypes were observed based on the analysis of variance. A wide range of variability
was recorded for all the characters. Genotypes, Palam Priya, BAJ-PEA-11, Pb-89, BAJ-PEA-9, Green
Pearl, Azad P-1, BAJ-PEA-8 and Lincoln were found superior over the other genotypes for yield and
other horticultural traits. Wide genetic variability and high heritability coupled with high genetic gain
was observed for green pod yield per plant, seed yield per plant, plant height and number of pods per
plant. Correlation analysis unveiled that green pod yield per plant was positively and significantly
correlated with pod weight, number of pods per plant, number of pods per axil, shelling percentage,
seed yield per plant, 100- seed weight, number of seeds per pod, plant height, pod length, node
number bearing first flower and pod width at both genotypic and phenotypic levels. Based on the path
analysis, maximum positive direct effect of number of seeds per pod was observed on green pod yield
per plant followed by pod weight, plant height, number of pods per plant, days to marketable
maturity, days to fifty per cent flowering, seed yield per plant, shelling percentage and pod width.
This indicated that selection must be done for these characters for obtaining superior genotypes. The
genetic divergence analysis revealed considerable genetic diversity in thirty- one genotypes.
Mahalanobis D2 analysis divided the thirty-one genotypes into seven clusters with maximum
genotypes in cluster II. Cluster IV and VII were found to be more divergent with superior mean for
almost all the traits, thus hybridization between the genotypes of these clusters will produce superior
transgressive segregants with improved horticultural traits.