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以三系法配制杂种的籼型杂交稻推广以来,国内对其生理、生化特点曾有不少报告。而以化学杀雄配制的杂交稻,由于投入生产使用较晚,应用面积也较少。广东1975年种植面积达60万亩,江西、浙江、上海、江苏也只开始推广使用。因此对化杀组合优势的生理特点的研究尚无系统报道。本文以赣化2号这一强优高产组合为材料,以比较生理的办法探讨与产量形成和栽培利用关系较为密切的一些生理特点,分析其高产的原因,以便为合理的栽培利用提供依据。
Since the promotion of indica hybrid rice with three-line hybrids, there have been many reports about its physiological and biochemical characteristics in China. However, chemical hybridization to kill male hybrid rice, due to put into production later, the application area is also less. In 1975, the planting area of Guangdong reached 600,000 mu, and only started to be used in Jiangxi, Zhejiang, Shanghai and Jiangsu. Therefore, there is no systematic report on the physiological characteristics of combinatorial advantage. In this paper, Ganghi 2, a high-yielding and high-yielding combination, was used as material to explore physiological characteristics closely related to yield formation and cultivation and utilization, and to analyze the reasons for its high yield in order to provide a basis for rational cultivation and utilization.