MORPHOLOGICAL, BIOCHEMICAL AND MOLECULAR CHARACTERIZATION OF FIELD PEA (Pisum sativum var. arvense)
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Date
2023-08-18
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DEPARTMENT OF GENETICS AND PLANT BREEDING COLLEGE OF AGRICULTURE BANDA UNIVERSITY OF AGRICULTURE & TECHNOLOGY BANDA-210001, UTTAR PRADESH (INDIA)
Abstract
Forty-six germplasm of field pea including two checks (IPFD 10-12 and Ambika)
were evaluated for genetic parameters, character association studies, and molecular
diversity during rabi 2021-22 at BUAT, Banda. The observation was recorded on fifteen
morpho-biochemical characters. Analysis of variance showed the existence of sufficient
variability for studied characters among test genotypes. The results revealed that plant
height, pods per plant, effective pods per plant, biological yield per plant, seed yield per
plant, non-reducing sugar, reducing sugar, total sugar, and total phenol exhibited high
estimates of both PCV and GCV, indicating the possibility of improving these traits
through selection. High heritability coupled with high genetic advance as percent of mean
recorded for plant height, total number of pods per plant, effective pods per plant,
biological yield per plant, seed yield per plant, non-reducing sugar, reducing sugar, total
sugar, and total phenol indicated that these traits were governed by additive gene effects
and selection may be effective. Correlation analysis revealed that seed yield per plant had
strong positive association with total number of pods per plant, effective pods per plant,
biological yield, seed per pods and plant height. Path analysis revealed that effective pods
per plant, followed by biological yield exerted highest direct effect on seed yield in
positive direction, whereas highly positive indirect effect exhibited by total number pods
per plant, biological yield, and plant height via effective pod per plant, indicating these
traits were important contributors to seed yield. A total of 43 repeatable alleles were
detected by 14 polymorphic SSR markers in a size range of 150 bp (AA122) to 970 bp
(AA504) with maximum of 4 fragments intensified by AD147, D21, AA504, AA122, and
A9. Based on Jaccard dissimilarity coefficients and UNJ methods, all 46 genotypes were
grouped into 3 clusters. The PCoA revealed 20.95% and 10.85% of the variation,
respectively with 31.80% of cumulative variation. SSR markers indicated the presence of
considerable genetic variability in studied genotypes.
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SATYENDRA {2023}, “MORPHOLOGICAL, BIOCHEMICAL AND MOLECULAR CHARACTERIZATION OF FIELD PEA (Pisum sativum var. arvense)’’ M.Sc. (Ag.), DEPARTMENT OF GENETICS AND PLANT BREEDING COLLEGE OF AGRICULTURE BANDA UNIVERSITY OF AGRICULTURE & TECHNOLOGY BANDA-210001, UTTAR PRADESH (INDIA)