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Estimation of combining ability for yield and fiber quality traits in Gossypium hirsutum L.


The International Journal of Biological Research (TIJOBR)

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Muhammad Sheraz Rasheed1, Rabail Afzal1*, H. M. Umair Waqas1, Sana Zia1, Azka Muneer1, Abdul Manan1, Uzma Fatima Soomro1, Jawaria Johar1

*Corresponding author: rabail.afzal.10@gmail.com 
Submitted Accepted Published
Sep 04,2018 Jan 23,2019 Jan 30,2019

2019 / Vol: 2 / Issue: 1


Abstract


Cotton (Gossypium hirsutum L.) has vital role in economy of Pakistan. In the present study GCA effects of parents and SCA effects of crosses were estimated by using line × tester analysis. Four lines i.e. FH-312, CRS-2007, MNH-998, FH-2015 and four testers MS-71, NS-131, IUB-65, FH-114 were crossed to develop 16 F1 hybrids. The parents along with their hybrids were evaluated in RCBD in two replications in the field during 2017-2018. The GCA and SCA mean squares for plant height, number of monopodial branches, number of bolls per plant, boll weight, lint percentage, lint index, seed index, fibre length, fibre strength and fibre fineness were significant. Among lines FH-2015, MNH-998 and CRS- 2007 whereas among testers NS-131, IUB-65 and FH-114 were proved to be good general combiners for most of the characters. These parents suggested to be used in future programs for isolating the desirable traits. Among crosses CRS-2007 × NS-131, MNH-998 × IUB-65, FH-2015 × MS-71, CRS-2007 × FH-114, FH-2015 × FH-114 were proved to be best specific combiners for most of the characters. 


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