提高杂交种的产量水平是一个连续的过程。在印度,首批投放的商用高粱杂交种组合是外国×外国。此后培育的杂交种及品种来自温带(外国)×热带(印度/非洲)的杂交组合选系。最近推广的杂交种产量水平很高,因此欲进一步提高产量,需要有一个合理而科学的依据。本研究就是在这方面的尝试,尤其注意母本改良的重要性。材料和方法来自温带×热带杂交后代的 Increasing the yield of hybrids is a continuous process. In India, the first commercial combination of sorghum hybrids was foreign × foreign. The hybrids and varieties cultivated thereafter come from the crosses of temperate (foreign) × tropical (Indian / African) lines. The level of hybrids recently promoted is high, so there is a need for a reasonable and scientific basis to further increase production. This study is an attempt in this area, paying particular attention to the importance of parental improvement. Materials and Methods from Temperate × Tropical Hybrids