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STUDIES ON VARIABILITY, CORRELATION AND GENETIC DIVERGENCE IN OPEN POLLINATED BRINJAL GENOTYPES (Solanum melongena L.)

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Title STUDIES ON VARIABILITY, CORRELATION AND GENETIC DIVERGENCE IN OPEN POLLINATED BRINJAL GENOTYPES (Solanum melongena L.)
 
Creator Mishra, Malayaj Narhari
 
Contributor Trivedi, Jitendra
Sharma, D.
Shrivastava, L.K.
Saxena, R.R.
 
Subject VARIABILITY, ORRELATION,GENETIC DIVERGENCE,POLLINATED BRINJAL GENOTYPES (Solanum melongena L.)
Horticulture
 
Description The experiment was carried out during the year 2011-12 in Rabi season at
Horticulture Research cum Instructional Farm, Department of Horticulture, Indira
Gandhi Krishi Vishwavidyalaya, Raipur (C.G.) with objectives to find out the mean
performance, to assess the genetic variability, heritability, genetic advance and
genetic divergence for fruit yield and it’s contributing characters in brinjal genotypes.
High GCV and PCV were found in some characters viz., number of fruits per
plant, yield per plot, fruit weight, fruit length, fruit yield per plant, fruit girth and
number of fruits per cluster.
The estimates of genotypic correlation coefficients, in general, were higher in
magnitude than phenotypic correlation coefficients for most of the characters
indicating least influence of environmental factors in the expression of association
among these characters. A correlation was significant in case of number of flowers
per cluster, number of fruits per cluster, number of branches per plant and fruit yield
per plant with fruit yield per plot at both genotypic and phenotypic levels. Fruit yield
was significantly and positively associated with plant spread and number of fruits per
plant at genotypic level.
The path analysis revealed that the fruit weight had maximum and positive
direct effect on fruit yield followed by number of branches per plant, fruit length,
number of fruits per cluster, number of cluster per plant, days to 50% flowering, plant
spread, days to first flowering and number of flower per cluster. The characters viz.,
fruit yield per plant, fruit girth, fruit stalk length, number of fruits per plant, fruit
setting percentage, days to first fruit set, TSS and plant height had negative direct
effect on fruit yield.
Genetic divergence analysis indicated that cluster I and II contains highest
number of genotypes (7 genotypes). The maximum intra-cluster was obtained in
cluster I while, inter-cluster distance was highest between cluster I and cluster III.
Cluster II exhibited high cluster mean value for fruit yield per plant, fruit girth and
fruit weight. Cluster III exhibited earliest 50% flowering, days to first fruit set,
number of fruits per plant and fruit length. The maximum contribution towards total
genetic divergence were obtained from fruit yield per plant, fruit weight, total soluble
solids, yield per plot, fruit girth and number of branches per plant.
The study of variability parameter, correlation, path analysis and genetic
divergence indicated that character like number of fruit weight, number of fruits per
plant, fruit yield per plant, fruit girth and number of fruits per cluster were important
for improvement in yield and its contributing characters.
 
Date 2016-11-29T15:22:37Z
2016-11-29T15:22:37Z
2012
 
Type Thesis
 
Identifier 120 p.
http://krishikosh.egranth.ac.in/handle/1/88183
 
Language en
 
Format application/pdf
 
Publisher Indira Gandhi Krishi Vishwavidyalaya Raipur