Publication Date
1997
Description
The objective of this study was to investigate the genetic behaviors of crude protein (CP), potassium (K), calcium (Ca), magnesium (Mg) and hydrocyanic acid (HCN) by using 28 forage sorghum lines (including one set of half diallel cross and seven parents) as experimental materials. The results showed that the differences of all chemical components except Mg were significant among parents at heading and maturity. The mean squares of general(GCA) and specific (SCA) combining abilities of K and HCN at heading and maturity were all significant. Their additive variances were higher than their dominant variances at heading, however, similar at maturity. The SCA of CP was highly significant at heading and maturity,but GCA not. The Ca component was controlled by additive and dominant genes at heading, but only dominant genes at maturity. From above, it might be suggested that the concentrations of K, Ca and HCN could be improved by recurrent selection breeding in forage sorghum.
Citation
Shaug, S P. and Lo, K D., "Evaluation of Combining Ability for Chemical Components of Forage Sorghum" (2024). IGC Proceedings (1997-2023). 45.
https://uknowledge.uky.edu/igc/1997/session17/45
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Evaluation of Combining Ability for Chemical Components of Forage Sorghum
The objective of this study was to investigate the genetic behaviors of crude protein (CP), potassium (K), calcium (Ca), magnesium (Mg) and hydrocyanic acid (HCN) by using 28 forage sorghum lines (including one set of half diallel cross and seven parents) as experimental materials. The results showed that the differences of all chemical components except Mg were significant among parents at heading and maturity. The mean squares of general(GCA) and specific (SCA) combining abilities of K and HCN at heading and maturity were all significant. Their additive variances were higher than their dominant variances at heading, however, similar at maturity. The SCA of CP was highly significant at heading and maturity,but GCA not. The Ca component was controlled by additive and dominant genes at heading, but only dominant genes at maturity. From above, it might be suggested that the concentrations of K, Ca and HCN could be improved by recurrent selection breeding in forage sorghum.
