International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 1
First page : (976) Last page : (981)
Article doi: http://dx.doi.org/10.18782/2320-7051.6132
Manifestation of Economic Heterosis for Seed Cotton Yield and its Component Traits in American Cotton (Gossypium hirsutum L.)
Bankar A. H.*, O. Sangwan K. S. Nirania, Ankit Kumar and Sunayana
Department of Genetics and Plant Breeding, CCS Haryana Agricultural University, Hisar - 125 004
*Corresponding Author E-mail: pinnya1111@gmail.com
Received: 28.12.2017 | Revised: 25.01.2018 | Accepted: 3.02.2018
ABSTRACT
Present study was conducted to assess the extent of economic heterosis for seed cotton yield and its component traits in 50 F1 hybrids of American cotton (Gossypium hirsutum L.) developed by crossing 5 females with 10 males in line x tester mating fashion during Kharif 2015. These hybrids along with 15 parents and one standard check HHH 223 were planted during kharif, 2016 at CCS HAU, Cotton Research Station, Sirsa. Analysis of variance revealed mean sum of squares due to parents and hybrids was highly significant for all the characters, indicated the presence of variability among hybrids and their parents. Results showed that maximum economic heterosis ranged from -17.88% to 46.04%, -33.40% to 38.02% for number of bolls per plant, -7.41 % to 14.84% for boll weight, -9.67% to 7.94% for days to first flower, -12.10% to 14.42% for plant height -70.59 to 37.25% and -33.99 to 29.00% for number of monopods and sympods per plant respectively. Highest heterosis for seed cotton yield was recorded by the hybrid H1226 x SR-38 (46.04%) followed by H1300 x Gregg 45 (43.16%), H1098i x PUSA 31 (39.53%), H1300 x PUSA 31 (38.18%) and H1117 x SR-38 (37.73). These hybrids also reported high positive significant heterosis either for number of bolls or boll weight. Thus, necessity of special devotion so as to exploit high heterotic values for seed cotton yield and its component traits in these hybrids. Study also revealed good scope for isolation of pure lines among the progenies of other heterotic F1 hybrids.
Key words: Gossypium hirsutum, Seed cotton yield, Economic heterosis, Line x Tester analysis.
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Bankar, A.H., Sangwan, O., Nirania, K.S., Kumar, A. and Sunayana, Manifestation of Economic Heterosis for Seed Cotton Yield and its Component Traits in American Cotton (Gossypium hirsutum L.), Int. J. Pure App. Biosci.6(1): 976-981 (2018). doi: http://dx.doi.org/10.18782/2320-7051.6132
