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Subject: Horticulture × Author: Adavi.Rao.Desai ×
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    ThesisItemOpen Access
    Molecular diversity and phenotyping of selected cashew genotypes of Goa, and physiological response of cv. Goa-1 to in situ moisture conservation
    (UAS, Dharwad, 2008) Adavi.Rao.Desai; A.N.Mokashi
    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.
  • Thumbnail Image
    ThesisItemOpen Access
    Molecular diversity and phenotyping of selected cashew genotypes of Goa, and physiological response of cv. Goa-1 to in situ moisture conservation
    (UAS Dharwad, 2008) Adavi.Rao.Desai; A.N.Mokashi
    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.