Morphological, biochemical and molecular diversity analysis of upland cotton (Gossypium hirsutum L.)
| dc.contributor.advisor | Dahiya, G.S | |
| dc.contributor.author | Rathi, Meenakshi | |
| dc.date.accessioned | 2022-11-10T05:38:43Z | |
| dc.date.available | 2022-11-10T05:38:43Z | |
| dc.date.issued | 2021-02 | |
| dc.description.abstract | The present investigation “Morphological, biochemical and molecular diversity analysis of upland cotton (Gossypium hirsutum L.)” was carried out at Chaudhary Charan Singh Haryana Agricultural University, Hisar in kharif 2018-2019 and 2019-20 with the objective of estimating diversity of 150 genotypes of cotton. Variation among genotypes was present for hypocotyl pigmentation, pubescence on stem, stem pigmentation, leaf color, pigmentation of petiole, flower petal color, boll shape, prominence of tip, plant height, growth habit, seed index, ginning percentage, fiber length, fiber strength and fiber fineness. Analysis of variance revealed presence of variability for all the traits among the genotypes other than number of monopods and number of locules. GCV and PCV also shows that number of locules, days to first flower, ginning percentage and number of seeds per locules had low variability whereas as highest PCV and GCV values were possessed by number of bolls per plant and seed cotton yield. Additive gene action was dominant in plant height, number of sympods per plant, boll weight, seed index, lint index, number of bolls per plant and seed cotton yield per plant as high heritability coupled with high genetic advance was reported for these traits. Correlation studies showed that seed cotton yield per plant was significantly and positively correlated with all the traits highest among them was of number of bolls per plant but days to first flower, number of locules per boll and fiber quality traits exhibited negative association with yield. Path analysis revealed that maximum contribution is from number of bolls per plant and boll weight. Genetic diversity analysis was done using 118 SSR markers out of which 26 were found polymorphic with average number of alleles as 2.1 per locus. UPGMA clustering analysis formed 13 groups of genotypes. The biochemical profiling of the genotypes showed variability among the genotypes. Weather affected biochemical parameters but gossypol remained unaffected. Seed cotton yield did not show any relation with biochemical parameters but was in negative association with CLCuD | en_US |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810189724 | |
| dc.keywords | Upland cotton, Variability, Genetic parameters, Correlation, Genetic diversity, Biochemical profiling | en_US |
| dc.language.iso | English | en_US |
| dc.pages | 97+ix+XIV | en_US |
| dc.publisher | CCSHAU, Hisar | en_US |
| dc.sub | Genetics and Plant Breeding | en_US |
| dc.theme | Morphological, biochemical and molecular diversity analysis of upland cotton (Gossypium hirsutumL.) | en_US |
| dc.these.type | Ph.D | en_US |
| dc.title | Morphological, biochemical and molecular diversity analysis of upland cotton (Gossypium hirsutum L.) | en_US |
| dc.type | Thesis | en_US |