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杂交水稻在我省总的说来是一个发展的趋势。但是,地区间发展很不平衡,杂种优势在一些地区未能充分发挥。其原因主要是:对杂交水稻增产潜力是否优于“桂朝2号”等常规良种的问题,川东南高温伏旱区能否发展杂交中稻的问题存在不同看法;对杂交水稻高产栽培技术的科学研究、经验总结、技术推广做得不够。本文试图以几年来我省杂交水稻发展的基本实践经验和科研结果为依据作一些初步分析,供生产上参考。
Hybrid rice in our province is generally a trend of development. However, inter-regional development is very uneven, heterosis in some areas failed to give full play. The main reasons are: whether the yield potential of hybrid rice is superior to that of conventional cultivars such as “Guichao No.2”, and different opinions on whether hybrid rice can be developed in the high-temperature and drought-prone area of southeastern Sichuan; and the scientific research on high-yielding cultivation techniques for hybrid rice Summary of experience, technology promotion did not do enough. This article attempts to make some preliminary analyzes based on the basic practical experience and scientific research results of the development of hybrid rice in our province in recent years for reference for production.