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    Genetic variability and correlation in short duration rice cultivars
    (Kerala Agricultural University, 1994) Ahmed Regina; Rema Bai, N; Devika, R; Joseph, C A
    In order to understand the nature and extent of variability and association of various quantitative characters with grain yield, a field experiment was conducted with 45 short duration rice genotypes at the Rice Research Station, Moncompu. The environmental influence on the different traits was evident from the phenotypic coefficient of variability being higher than the genotypic coefficient of variability. Characters such as plant height, flag leaf area, panicle exsertion, number of grains per panicle and grain yield exhibited moderate to high heritability and genetic advance. Grain yield was found to be positively correlated both at genotypic and phenotypic level with number of productive tiller's per hill, plant height, flag leaf area, panicle length anil number of grains per panicle.
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    Genetic variability in Abelmoschus caillei L.
    (Kerala Agricultural University, 1999) Reena Susan Chacko; Suresh Babu, K V; Rajan, S; Krishnan, S
    Studios on parameters of variability, correlation and path coefficient analysis of fruit yield in Abelmoschus caillei L- revealed that characters such as number of branches per plant, number of nodes per plant, plant height and fruit length had maximum coefficient of variation. Higher values of heritahility anil genetic advance were simultaneously estimated for fruit yield per plant and fruits per plant. Yield per plant had hiph positive significant correlation with fruits per plant, fruit length, fruit weight, plant height and number of intemodes on main stem. Path analysis revealed positive direct effect on fruit yield per plant through fruits per plant followed by plant height,
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    Genetic analysis of yield and its components in fodder teosinte (Euchlaena mexicana L. Schrad)
    (Kerala Agricultural University, 2000) Suma Bai, D I; Lekha Rani, C
    Ten fodder tcosintc types were evaluated in a randomized block design with three replications during Kharif 1995 at the College of Agriculture, Vellayani under AICRP on Forage Crops. Genetic analysis of fodder yield and its components revealed that plant height recorded high genotypic coefficient oi' variation, herilability and genetic advance indicating that selection based on this character will result in improving fodder yield. Highest genotypic correlation was observed between green fodder yield and dry matter yield. Leaf number per plant and plant stand recorded highest positive genotypic correlation with green fodder yield.