PJB-2021-669
Combining ability analysis in soybean through North Carolina mating design II under varying water levels and temperature at maturity stage
Bareera Nasir, Humera Razzaq, Hafeez Ahmad Sadaqat and Muhammad Ashfaq Wahid
Abstract
Soybean is a climate sensitive crop. Water and temperature is crucial factors for its cultivation. The objective of this study was to evaluate the performance of eight soybean parents and their crosses under various levels of water and temperature at maturity stage. Fifteen crosses resulting from North Carolina Mating Design II and their parents were evaluated for maturity traits under three levels of water and temperature i.e. T0= Water level: 4 irrigations + Average weekly temperature= 36.50°C, T1= Water level: 3 irrigations + Average weekly temperature= 33.83°C and T2 = Water level: 2 irrigations + Average weekly temperature= 29.80°C. Recorded data were subjected to analysis of variance. Existence of genetic variability among most of the entries showed that this germplasm can be further used for breeding programme in soybean to improve yield and stability. General combining ability (GCA) effects of the parents and specific combining ability (SCA) effects of crosses were estimated. Our findings reveal that selected parents (17444, 24567 and 24581) and cross combinations (17444×24581 and 24567×24576) are the most promising for breeding soybeans under different climatic conditions and may be further evaluated to study their worth as potential parents and crosses
To Cite this article:
Nasir, B., H. Razzaq, H.A. Sadaqat and M.A. Wahid. 2023. Combining ability analysis in soybean through North Carolina mating design II under varying water levels and temperature at maturity stage. Pak. J. Bot., 55(5): DOI: http://dx.doi.org/10.30848/PJB2023-5(8)
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