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Study of genetic variability and diversity in brinjal (Solanum melongena L.)

KrishiKosh

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Title Study of genetic variability and diversity in brinjal (Solanum melongena L.)
 
Creator Yadav, Neha
 
Contributor Dhankhar, S.K.
 
Subject Colourants, Animal husbandry, Oils, Antioxidants, Biological phenomena, Concentrates, Additives, Hydration, Oligosaccharides, Aromatic compounds
 
Description A field experiment entitled “Study of genetic variability and diversity in brinjal
(Solanum melongena L.)” including forty genotypes was conducted at Research Farm of the
Department of Vegetable Science, CCS Haryana Agricultural University, Hisar during
autumn winter season 2015. The observations were recorded on thirteen qualitative characters
including fifteen qualitative traits. The analysis of variance exhibited significant genotypic
differences, showing considerable amount of genetic variability among different genotypes.
The characters like fruit weight and yield per plant showed high GCV along with heritability,
indicating additive gene action. Relatively higher and lower values of genotypic coefficient of
variation for different yield contributing characters like number of fruits per plant, average
fruit weight, fruit length and fruit diameter, which were less affected by environments should
be selected for future development of higher yielding varieties. Significantly positive
genotypic correlation was observed for number of branches per plant (0.610**), number of
fruits per plant (0.565**), number of flowers per cluster (0.394**) and plant height (0.213*)
with fruit yield per plant. Path analysis showed that number of branches and fruits per plant
had high direct effect and number of flowers per cluster had indirect effect via., number of
branches per plant with fruit yield per plant, indicating that these traits should be given
importance for selection in present material. Average intra- and inter-cluster D
2
values among
40 genotypes revealed that cluster II showed a minimum intra-cluster value of 3.793,
indicating that the genotypes within this cluster were similar, while the cluster I showed
maximum intra-cluster D
2
value (4.681) revealing the existence of diverse genotypes in these
clusters. The inter-cluster D
2
values ranged from 4.657 to 7.174. The minimum inter-cluster
D
2
value was observed between cluster III and IV (4.657), indicating the close relationship
among the genotypes included in these clusters. The maximum inter-cluster value was
observed between cluster V and II (7.174), indicating that the genotypes included in these
clusters had maximum divergence. Hence, hybridization between the genotypes included in
these different clusters may give high heterotic responses and thus better segregants are
greatly suggested for selection and improvement of brinjal crop.
 
Date 2016-10-25T13:46:05Z
2016-10-25T13:46:05Z
2016
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/81824
 
Language en
 
Format application/pdf
 
Publisher CCSHAU