Agro morphological characterization of cotton germplasm (Gossypium hirsutum L.)

摘要

The present investigation was conducted to characterize 518 genotypes of cotton on the basis of 30 morphological characters as suggested by Protection of Plant Variety and Farmer's Right Act (PPV and FRA) for Distinctiveness Uniformity and Stability (DUS) testing in cotton. The experiment was conducted in the experimental area of the Cotton Section, Department of Genetics and Plant Breeding, CCS Haryana Agricultural University, Hisar in kharif, 2017-2018 in a randomized block design with three replications. Results revealed that there is no variation observed for gossypol glands, nectarines, petiole pigmentation, sepal pigmentation, petal spotting, boll bearing habit and boll colour. Moderate range of variation was recorded for hypocotyl pigmentation, plant stem pigmentation, plant stem hairiness, leaf shape, leaf appearance, bract type, stigma position, anther colour, boll surface and boll opening. The spacious scale of variation was observed for quantitative character like time of flowering, plant height, lobe number, number of serration and boll weight. Extensive extent of variation was observed for character like plant stem hairiness, leaf size, leaf colour, leaf pubescence, petal colour, anther colour, boll shape and boll tip these morphological characters proved to be useful and stable diagnostic characters which could classify the genotypes based on the phenotypic traits.