Yield Stability Parameters for Sorghum in East Africa
Domaine:
agricultureCréateur:
D.
Éditeur:
Hôte:
Yield data of single crosses, three‐way crosses and inbreds of Sorghum bicolor (L.) Moench, obtained in East Africa, are analyzed by previously described techniques on both an arithmetic and a log scale to obtain estimates of parameters describing yield stability over environments. Comparison of regression coefficients of yield on environmental index show that hybrids are more stable in terms of this parameter, but that there is no difference between three‐way and single crosses. In terms of deviations from regression, weak evidence is presented that indicates that three‐way crosses may be more stable than single crosses. This is interpreted as being due to population buffering. However, one single cross showed particularly low deviations, indicating that this may be a heritable characteristic. The analyses on the arithmetic scale and on the log scale are compared, with the conclusion that analysis on the log scale is preferable if varieties differ markedly in yield.
Similaires
Genomic prediction and characterization of grain yield and yield stability in sorghumGGE Biplot Analysis for Grain Yield Stability of Sorghum (Sorghum bicolor L. Moench) Across Four Environments in NigerYield Stability for Some Selected Drought Tolerant Sorghum Genotypes in Dry Lowlands of EthiopiaGenotype by environment interactions and stability for grain yield and other agronomic traits of sorghum in EthiopiaGenotype by Environment Interaction and Stability Analysis for Yield of Chili Pepper (Capsicum annuum L.) in East Hararghe, EthiopiaSorghum Hybrids for Low‐Input Farming Systems in West Africa: Quantitative Genetic Parameters to Guide Hybrid Breeding