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Academic Research Journal of
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Academic Research Journal of Agricultural Science and Research Vol. 3(6), pp. 128-136. June, 2015. ISSN: 2360-7874 DOI: 10.14662/ARJASR2015.033
Full Length Research Heterotic Studies in 8 × 8 Diallel Crosses of Upland Cotton
Kashif Ali Shah1*, NaqibUllah Khan1, Liaqat Shah2, Asif Ali2, Aaqil Khan3, Xu Ying3, Zaheer Abbas1
1Department of Plant Breeding and Genetics, The University of Agriculture Peshawar, Pakistan 2Key Lab of Crop Biology, School of Life Sciences, Anhui Agricultural University, Hefei 230036, China 3School of Agronomy, Anhui Agricultural University, Hefei 230036, China Corresponding author E-mail: kashifgenetics@gmail.com
Accepted 8 May 2015
To study the genetic variability in 8 × 8 diallel cross of upland cotton among different morpho-yield traits, an experiment involving eight cotton (Gossypium hirsutum L.) cultivars and their 56 F1 crosses were grown at The University of Agriculture Peshawar, Pakistan during May, 2009. Mean values for days to flowering varied from 57.00 to 71.67 among parental genotypes while mean values ranged from 51.33 to 65.33 days in F1 hybrids. Mean values for monopodia plant-1among the parental genotypes and F1 hybrid varied from 0.30 to 1.13 and 0.22 to 1.59, respectively. Mean values for seed cotton yield plant-1 varied from 40.48 to 117.50 g among parental cultivars while 42.11 to 243.10 g in F1 hybrids.The cross combination SLH-284 × CIM-506 showed desirable negative values heterosis over mid and better parents for days to first flowering (-20.00 and -27.45%). The F1 hybrid CIM-499 × CIM-473 exhibited promising mid and better parent heterosis values for bolls sympodia-1 (110.12 and 101.37%). The cross combination CIM-473 × CIM-554 showed superior heterosis over both parents for bolls plant-1 (101.10 and 77.00%) and boll weight (25.87 and 18.28%). The F1 hybrid CIM-707 × CIM-496 demonstrated promising mid and better parent heterosis values seed for cotton yield plant-1 (86.95 and 84.86%) and desirable negative values for monopodia plant-1 (-56.44 and -67.76%). The above mentioned F1 crosses can be further studied for their stability in F2 generation for hybrid cotton production.
Key words: heterosis; F1 crosses; morphological traits; yield traits; upland cotton
How to cite this article: Shah KA*, Khan N, Shah L, Ali A, Khan A, Ying X, Abbas Z (2015). Heterotic Studies in 8 × 8 Diallel Crosses of Upland Cotton. Acad. Res. J. Agri. Sci. Res. 3(6):128-136.
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