Record Details

Genetic Variabilty for seed Longevity and Component Traits in Soybean [Glycine max (L.)Merill.]

KrishiKosh

View Archive Info
 
 
Field Value
 
Title Genetic Variabilty for seed Longevity and Component Traits in Soybean [Glycine max (L.)Merill.]
 
Creator Shilpa Mahadeva Naik
 
Contributor K. Madhusudan
 
Subject Genetics and Plant Breeding
 
Description An experiment was conducted to elucidate nature and magnitude of genetic variability
for yield, seed longevity, correlation and genetic diversity at morphological level and to
screen the accessions for seed longevity using molecular markers. 225 genotypes were
evaluated for 16 quantitative traits and per cent reduction in germination was recorded as a
measure of seed longevity.
Genotypes exhibited significant variability for all the 16 characters. Plant height,
number of pods per plant, test weight, seed yield per plant, seed yield per hectare, final
germination, seed coat permeability (SCP), electrical conductivity (EC) and per cent
reduction in germination showed high PCV, GCV, heritability and genetic advance as per
cent mean, whereas days to 50 per cent flowering, days to maturity, number of seeds per pod,
protein content and oil content showed low PCV and GCV.
Number of branches per plant, number of pod per plant and test weight showed
positive and significant correlation with seed yield per plant. Whereas, per cent reduction in
germination was positively and significantly associated with test weight, SCP and EC.
Maximum positive direct effect on seed yield was exhibited by number of pods per plant and
test weight, on seed longevity it was exhibited by EC and SCP.
Genetic diversity analyses using 225 genotypes were grouped into 8 clusters. Higher
diversity among the genotypes was revealed by high intra and inter cluster distances.
Similarly for seed longevity, 62 genotypes were grouped into 6 clusters; highest intra cluster
distance was exhibited by cluster IV (364.42). Molecular screening with SSR marker
revealed that, primer Satt 281 gave distinct banding pattern between good and poor longevity
genotypes. From the present investigation, five superior genotypes like PK 7379, PI 284815,
PI 204336, CO-1 and JS 79-307 were identified for high yield (3041.67-3708.33 kg/ha) with
good seed longevity (3.95-11.54).
 
Date 2016-11-21T18:15:53Z
2016-11-21T18:15:53Z
2012
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/86816
 
Format application/pdf
 
Publisher UAS, Dharwad