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优ⅠA是湖南杂交水稻研究中心育成的早熟早籼型、优质、高产稳产的不育系。经组配系列杂交组合,均具有配合力强,性状整齐,米质优,高产稳产特点,近年来是我地区大面积推广的当家组合,深受广大农民的欢迎。经过多年来对优ⅠA的生物特性进行深入观察研究,我们总结了一套优ⅠA系列组合的高产制种技术措施。 1 多项措施配套技术、培育壮秧,适时移栽。培育叶蘖同伸壮秧是高产的基础。主要技术措施,一是选择好秧田。选择较肥沃,排灌方便,阳光充足的地块。二是
You Ⅰ A is a hybrid progeny of early hybrid rice cultivars with high quality and high yield in Hunan Hybrid Rice Research Center. Through the combination of hybrid combinations, all of them have the characteristics of strong cohesion, tidy traits, high quality and stable yield of rice. In recent years, they have become the most popular populace in our region and are welcomed by many peasants. After years of in-depth observation of the biological characteristics of the superior Ⅰ A, we summarized a set of superior Ⅰ A series of high-yielding seed production techniques and measures. A number of measures supporting technology, nurturing strong seedlings, timely transplanting. Cultivation of leaf tiller with stretch seedling is the basis of high yield. The main technical measures, first, choose a good seedling. Choose more fertile, irrigation and drainage convenient, sunny lot. two is