Browsing by Author "Vijayaraghavakumar"

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    Comparative study of the contribution of biometric characters on yield in dessert varieties of banana
    (Kerala Agricultural University, 1984) Vijayaraghavakumar; George, K C; Krishnan Nair, N
    Investigations of twelve morphological characters were carried out on the crop raised at the KAU Banana Research Farm, Kannara. Fifty six dessert varieties of banana plants were grown in randomised blocks of three replications. The analysis revealed that all the twelve characters showed high significant difference among the varieties. All the phenotypic and genotypic correlations of the characters) with yield were positive. From the path coefficient analysis the character having maximum contribution to yield is 'weight of hands'. The 'weight of fingers' and 'number of fingers' also influence the yield indirectly. The genetic advance through discriminant function was found to be less than that through straight selection. Chenkadali and Red banana were the best two varieties selected through the method of selection indices.
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    Statistical analysis of the influence of biometric characters on yield in some culinary varieties of banana
    (Kerala Agricultural University, 1984) Vijayaraghavakumar; George, K C; Krishnan Nair, N
    The plants were grown on a three replicated RBD with thirty culinary varieties of banana at the Banana Research Station (KAU) Kannara. Measurements ort thirteen morphological characters were taken for the study. These biometric characters had shown high significant difference among the varieties. All the significant phenotypic and genotypic correlations of the characters with yield were positive. From the path coefficient analysis, it was seen that the yield is influenced by the number of fingers and as the number of hands increases, the number of fingers per hand decreases. No significant gain in genetic advance was observed when the genetic advance through discriminant function was compared with that through straight selection. The analysis with restricted selection (to girth) indicated that the character, number of fingers, had the maximum genetic advance. The varieties Poykunnam and Walha were noted for their highest values of selection indices.