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STUDIES ON GENETIC DIVERGENCE IN PEA (Pisum sativum L.)

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Title STUDIES ON GENETIC DIVERGENCE IN PEA (Pisum sativum L.)
 
Creator RAKESH
 
Contributor MANISH, KUMAR
 
Subject ---
pea (Pisum sativum L.),genetic divergence
 
Description ABSTRACT
The present investigation entitled “Studies on genetic divergence in pea (Pisum sativum
L.)” was carried out at the Research Farm, Department of Vegetable Science, Dr. YS Parmar
University of Horticulture and Forestry, Nauni, Solan (HP) during Rabi, 2010-11 to evaluate
germplasm of pea. The experiment was laid out in a RBD with three replications. Fifty four
genotypes including four check cultivars were evaluated for different horticultural traits. The
observations were recorded on days to first flower (number), node at which the first flower appear
(number), number of pods per plant, pod length (cm), number of seeds per pod, shelling percentage
(%), days to marketable maturity (number), pod yield (kg/plot), pod yield (q/ha), TSS (0B), total
phenols (g/100g) and powdery mildew severity (%). Analysis of variance showed significant
differences among all the genotypes for all the characters under study. Seven genotypes viz.
10/PMVAR-3, 10/PMVAR-4, 10/PMVAR-5, 9/PMVAR-7, AG-12, IC-381058 and VP-433 were
found superior over other entries and over standard checks for yield, quality and other important
horticultural traits. High heritability estimates coupled with high to moderate genetic gain were
observed for pod yield (kg/plot), pod yield (q/ha), total Phenols (g/100g), node at which the first
flower appear (number) and number of pods per plant which indicated that these characters are
under additive gene control and are more reliable for effective selection. Yield had shown positive
association with number of pods per plant, pod length (cm), number of seeds per pod, shelling
percentage (%), total sugars (%) and total soluble solids (0B). Among all the traits studied pod yield
per plot had shown maximum positive direct effect on yield per hectare followed by number of pods
per plant, number of seeds per pod, days to first flower and pod length. Further divergence studies
indicated that hybridization between genotypes from cluster II and III can be utilized for getting the
superior recombinants in segregating generations.
 
Date 2016-12-27T12:26:21Z
2016-12-27T12:26:21Z
2012
 
Type Thesis
 
Identifier 47797
http://krishikosh.egranth.ac.in/handle/1/93179
 
Language en
 
Format application/pdf