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我们在毛主席革命路线指引下,积极开展杂交水稻的研究和推广工作,1975年秋季配制杂交水稻种158.7亩,平均亩产59.7斤,最高的5.6亩亩产超过90斤;制种田前作为“湘矮早7号”和“二九矮1号”,亩产500—600斤。我们认为,秋季制种的优点是:可以多种一季早熟早稻,父母本生育期间气温较稳定,两亲本播种差期较易掌握,花期易调节,母本抽穗期气候条件较好,开花正常而集中,有利于提高结实率。为促进父母本花期相遇,获得杂种高产,我们采取了如下做法:
Under the guidance of Chairman Mao’s revolutionary line, we actively carried out the research and popularization of hybrid rice. In the autumn of 1975, we formulated 158.7 acres of hybrid rice varieties, with an average yield of 59.7 kg per mu and a maximum of 5.6 mu of mu yield of more than 90 pounds. As a “ Xiang short morning 7 ”and“ February 9 short 1 ”, yield 500-600 pounds. In our opinion, the advantages of seed production in autumn are as follows: it is possible to produce a variety of early season rice in one season, and the temperature during the period of parental growth is relatively stable, the seeding period of the parents is easy to grasp, the flowering period is easy to adjust, the weather conditions of the female heading stage are good, Concentration, is conducive to raising the rate of seed set. In order to promote the parents to flowering encounter, access to high yield hybrids, we have taken the following practices: