杂交水稻三系亲本提纯复壮,随着杂交水稻的发展先后经历了“三系配套法”、“三系七圃法”、“混合改良法”、“两交四圃法”及“一选三圃法”等多种方法。我们地区作为湖南省的两个“省提”基地之一至今已10年了。据我们多年采用两种不同方法对三系亲本进行提纯并对其育性、纯度变化进行的比较(见表1)及湖南省贺家山原种场进行的不同提纯方法的杂交稻三系亲本及子一代种植鉴定的试验(见表2)结果可以看出:①无论采用哪种方法提纯,三系亲本及子一代的结果均无显著差异;②不育系的育性不因提纯方 Three generations of hybrid rice parents purify and rejuvenate, with the development of hybrid rice has experienced “three lines supporting law”, “three lines seven law”, “mixed improvement”, Law “and ” a law of three nurseries “and other methods. Our region has been one of the two ”provincial bureaus" bases in Hunan Province for 10 years now. According to our three years using two different methods to purify the three-line parents and their fertility, purity comparison (Table 1) and Hejian Mountain in Hunan Province, different purification methods of hybrid rice three-line parents and The results of the seed generation identification tests (see Table 2) show that: ① no matter what method of purification, the three-line parents and the results of the child generation were no significant difference; ② sterile fertility is not due to purification