International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 2
First page : (240) Last page : (248)
Article doi: http://dx.doi.org/10.18782/2320-7051.2582
Heterosis Studies For Economic and Fibre Quality Traits in Line X Tester Crosses of Upland Cotton (Gossypium hirsutum L.)
L. Lingaraja1*, R.S. Sangwan2, S. Nimbal3, Omender Sangwan4 and Sukhdeep Singh5
1Ph.D. Res. Scholar, 2Principal Scientist, 3Assistant Scientist, 4Assistant Scientist, 5Ph.D. Res. Scholar
Department of Genetics and Plant Breeding, CCS HAU, Hisar-125004, Haryana, India
*Corresponding Author E-mail: lingarajlnaik@gmail.com
Received: 12.02.2017 | Revised: 24.02.2017 | Accepted: 25.02.2017
ABSTRACT
The present study was performed to evaluate the heterosis effects for economic and fibre quality traits of 60 hybrids were obtained from a line x tester analysis of crosses involving fifteen female parents and four male parents along with a check hybrid HHH 223. The heterosis was observed for number of seeds per boll, seed index, lint index, ginning outturn, 2.5 per cent span length, fibre strength, micronaire value, fibre uniformity and seed cotton yield per plant. The results showed that range of economic heterosis varied from -18.18 to 20.45% of number of seeds per boll, 1.58 to 32.91% of seed index, 11.15 to 31.85% of lint index, -11.06 to 3.37% of ginning outturn, -6.32 to 8.80% of 2.5 per cent span length, -2.73 to 18.27 of fibre strength, 17.69 to 21.23 of micronaire value, -2.08 to 1.66 of fibre uniformity and -60.38 to 48.32 of seed cotton yield per plant. The overall study of heterosis revealed that the better performing hybrids, H1316 X H1236 for number of seeds per boll and seed cotton yield, LH2232 x H1236 for seed index, H1300 x H1236 for lint index and ginning outturn, H1300 x H1098-i for 2.5 per cent span length and fibre strength, H1220 x H1226 for micronaire value and H1353 x H1117 for fibre uniformity. So these crosses could be exploited to improve the yield along with one or more fibre quality traits through heterosis breeding.
Key words: Cotton, Economic heterosis, Line x tester analysis, yield and fibre quality traits.
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Lingaraja, L., Sangwan, R.S., Nimbal, S., Sangwan, O. and Singh, S., Heterosis Studies For Economic and Fibre Quality Traits in Line X Tester Crosses of Upland Cotton (Gossypium hirsutum L.), Int. J. Pure App. Biosci.5(2): 240-248 (2017). doi: http://dx.doi.org/10.18782/2320-7051.2582
