优良种子是提高单产,增加总产的内因,是工省效宏的一项增产措施。克杂十三高粱杂交种在第三、四积温带部分县种植面积不断扩大,无论在熟期、产量、抗逆性等方面表现出一定的优越性,适应性较强,已成为取代大粒红的主栽品种。那么如何提高克杂十三杂交制种的产量和质量,以便满足生产大 Good seed is to improve the yield, increase the total internal production, is a provincial macro-efficiency measures to increase production. Gram-thirteen sorghum hybrids in the third and fourth quarters of the temperate part of the growing area planted, no matter in terms of maturity, yield, resistance and other aspects of the show some advantages, adaptability, has become the replacement of large grain red The main varieties. So how to improve the yield and quality of hybrid cross-hybrids in order to meet the production of large