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Subject: Seed Science and Technology × Author: Mohammad, Wasim × End date: 2018 × Start date: 2010 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Morpho-physiological characterization of wheat (Triticum aestivum L.) under normal and late sowing conditions
    (CCSHAU, 2018) Mohammad, Wasim; Mor, V.S.
    A study was conducted on ―Morpho-physiological characterization of wheat (Triticum a estivum L.) under normal and late sowing conditions‖ by applying 26 morphological qualitative and quantitative traits to characterize the 30 wheat genotypes. The qualitative traits like coleoptile colour, plant growth habit, auricle colour, flag leaf attitude, outer glume pubescence, shoulder width and shape were found to be most important diagnostic characters for genotype identification of wheat. There was no change in their state of expression with respect to change in the sowing time. The waxiness of ear, sheath, blade and peduncle were the supportive traits used for genotype identification. The phenol test was resulted in clear cut categorize genotypes into different groups on seed basis. The ranking of phenol test was found stable in seeds produced under both dates of sowing. The quantitative traits decreased significantly under late sown conditions as compare to normal sown condition. The clustering analysis was done on the basis of their traits which classified 30 wheat genotypes into nine distinct clusters under normal and late sown conditions. The schematic diagrams were made on the basis of morpho-physiological traits. The identification keys were developed to identify all the genotypes under study. Some genotypes had specific character through which they can be identified easily viz. WH 1322 have coleoptile colouration, WH 1025 have prostrate plant growth habit, C 306 have pale green foliage colouration, WH 1221 have very strong flag leaf waxiness on blade, PBW 550 have glume pubescence, WH 711 have lower glume: shoulder width and elevated shaller shape. The seed physiological traits resulted that the bold and vigorous seeds of all wheat genotypes with higher yield can be produced under normal sown conditions.