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Molecular diversity and phenotyping of selected cashew genotypes of Goa, and physiological response of cv. Goa-1 to in situ moisture conservation

KrishiKosh

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Title Molecular diversity and phenotyping of selected cashew genotypes of Goa, and physiological response of cv. Goa-1 to in situ moisture conservation
 
Creator Adavi.Rao.Desai
 
Contributor A.N.Mokashi
 
Subject Horticulture
 
Description Evaluation of 57 cashew genotypes revealed significant differences among the with
respect to growth and yield attributes. Genotypes such as Karapur-1, Karapur-2, Tiswadi-3,
Ganje-2 and Red Local were the prominent genotypes with vigourous growth habit under the
tall group. Sattari Dwarf and Tiswadi-4 showed less vigorous growth rate under dwarf group.
Tiswadi-3, Agonda-1, Bardez-9, KN-2/98, Valpoi-7 were observed to show promising results
with respect to yield and yield related characters.
Variability studies revealed higher heritability, coupled with higher GCV, PCV and
genetic advance (GA) over mean for number of panicles, sex ratio, nut weight and number of
flowering shoots per m2 canopy.
Tree height, canopy spread, number of leaves per twig, total leaf area per twig, number
of flowering shoots per m2 canopy, flowering intensity, number of nuts per panicle and nut
weight showed strong and significant positive correlation with nut yield per tree both at
genotypic and phenotypic levels and hence useful in enhancement of the genetic stock in
cashew.
Nut and kernel characters in PC1, apple characters in PC2, flowering factors in PC3
and growth and yield factors in PC4 accounted for >50 per cent of total variability. Of the six
clusters based on PCA, cluster IV had genotypes with highest nut weight, apple weight,
kernel weight and sex ratio, which included Tiswadi-3, Balli-1, Bardez-9, Agonda-1, KN-
2/98 and Valpoi-7.
RAPD analysis could differentiate all genotypes into two broad groups. While, first
group comprised of 35 and other comprised of 22 genotypes which inturn grouped the
genotypes into eight and three sub-clusters.
The comparative analysis of clustering pattern based on morphometric and molecular
diversity data reflected rather a partial consensus.
Cultivar Goa-1 showed enhanced physiological response to in situ moisture
conservation measures, which was reflected in nut yield differences between the various
conservation measures and control.
 
Date 2016-07-23T08:54:34Z
2016-07-23T08:54:34Z
2008
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/69445
 
Format application/pdf
 
Publisher UAS Dharwad