Evaluation of Advanced Generation Genetically Introgressed Lines for Fibre Traits in Cotton (Gossypium spp.)
KrishiKosh
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Title |
Evaluation of Advanced Generation Genetically Introgressed Lines for Fibre Traits in Cotton (Gossypium spp.)
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Creator |
Vithoba M. Choudki
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Contributor |
I.S. Katageri
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Subject |
Genetics and Plant Breeding
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Description |
Higher rate of success in crop improvement has been achieved due to the presence of high genetic variability. Genetic variability is generated through intra, interspecific crosses and mutation breeding. In the present study, advanced generation recombinant lines obtained from different interspecific crosses were evaluated at ARS, Dharwad Farm, during 2009-10, under Augmented Design-II. The data obtained was mainly discussed on genetic variability and perse performance of recombinant lines. Recombinant lines of G. hirsutum x G. barbadense cross: Genetic variability was significant for seed cotton yield, yield contributing and fibre quality traits except plant height, uniformity ratio and fibre elongation. Top four recombinant lines namely HBS-115 (2360 kg/ha, 24.68 g/tex), HBS-232 (1642 kg/ha, 24.83 g/tex), HBS-23 (1617 kg/ha, 28.23 g/tex) and HBS-114 (1317 kg/ha, 27.28 g/tex) recorded significantly higher seed cotton yield and fibre strength than Sahana (high yielding check, 1214 kg/ha, 21.30 g/tex) and MCU-5 (quality check, 912 kg/ha, 20.00 g/tex) respectively. About 48 RIL’s were screened using RAPD markers and distributed in different clusters with lowest and highest record of similarity coefficients 0.38 and 0.93, respectively. Recombinant lines of G. herbaceum x G. anomalum cross: Genetic variability was significant for seed cotton yield; all yield contributing and fibre quality traits. Top five recombinant lines namely PSCANOI-166 (1896 kg/ha, 20.75 g/tex), PSCANOI- 173 (1777 kg/ha, 20.45 g/tex), PSCANOI-170 (1761 kg/ha, 21.85 g/tex), PSCANOI- 42 (1737 kg/ha, 21.45 g/tex) and PSCANOI-5 (1703 kg/ha, 19.55 g/tex) recorded significantly higher seed cotton yield and fibre strength than DDhC-11 (702 kg/ha, 17.63 g/tex) and DLSa-17 (1236 kg/ha, 20.16 g/tex). Recombinant lines of G. herbaceum x G. barbadense cross: Genetic variability was significant for seed cotton yield, yield contributing and fibre quality traits except seed index, ginning outturn, lint index, uniformity ratio, micronaire and fibre elongation. Top five recombinant lines namely PSCCOL-32 (2525 kg/ha, 18.3 g/tex), PSCCOL-36 (2356 kg/ha, 19.2 g/tex), PSCCOL-30 (2279 kg/ha, 19.5 g/tex), PSCCOL-31 (2253 kg/ha, 18.4 g/tex) and PSCCOL-62 (1725 kg/ha, 18.2 g/tex) recorded significantly superior fibre strength and seed cotton yield than DDhC-11 (987 kg/ha, 17.10 g/tex) and they also recorded significantly higher seed cotton yield than DLSa-17 (1124 kg/ha, 20.40 g/tex). Recombinant lines of G. herbaceum x G. anomalum cross were more superior than RILs of G. herbaceum x G. barbadense cross in both seed cotton yield and fire quality. It indicated that G. anomalum is more desirable as a donor parent. |
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Date |
2016-11-10T16:21:55Z
2016-11-10T16:21:55Z 2011 |
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Type |
Thesis
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Identifier |
http://krishikosh.egranth.ac.in/handle/1/84953
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Format |
application/pdf
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Publisher |
UAS, Dharwad
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