Selection of sorghum hybrids grown under aluminum saturation
Abstract
皇冠体育app purpose of this study was to evaluate 165 hybrids derived from lines previously selected for aluminum (Al) tolerance. Nine check cultivars were used, eight commercial hybrids and one experimental hybrid. Hybrids were evaluated at three levels of Al saturation (0, 20 and 40% on average). 皇冠体育app differences between the environments were significant. Environment with 0% Al saturation yielded 29.5% more than that with 40% Al saturation, showing the importance of genotype selection for acid soils. 皇冠体育app best check cultivar was the hybrid DKB550. 皇冠体育app hybrids AG1020 and AG1040 also performed well, where the latter was more tolerant but the former more responsive to environment improvement. 皇冠体育app hybrid BRS304 was susceptible to high levels of Al saturation. 皇冠体育app three commercial BRS hybrids (BRS310, BRS330 and BRS332) performed better than BRS304 at high Al saturation. 皇冠体育app hybrid BRS330 was the best BRS hybrid to grow on a field with high Al saturation. 皇冠体育app hybrid DKB559 performed well at high Al saturation but did not respond to environment improvement. 皇冠体育app hybrids 727029, 727039, 729041, 729095, 729109, AG1040, and DKB550 were tolerant to higher levels of Al saturation and responsive to environment improvement, and showed good stability and adaptability at both low and high Al saturation.
Citation
Menezes, C.B.; Carvalho Junior, G.A.; Silva, L.A.; Bernardino, K.C.; Magalh茫es, J.V.; Guimar茫es, C.T.; Guimar茫es, L.J.M.; Schaffert, R.E. Selection of sorghum hybrids grown under aluminum saturation. Genetics and Molecular Research (2014) 13 (3) 5964-5973. [DOI: 10.4238/2014.August.7.12]