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我国劳动人民培育了众多的水稻品种。为着了解和掌握稻种演变的有关规律,我们从1963—1967年,用典型的晚季稻品种“短种”,在其种子植株及其分蘖个体发育的第二阶段,适当用短日(9小时/日)光照处理若干天,但不满足其遗传性的要求,然后将其从暗室移至早造自然长日照(14—15小时/日)综合条件下,让其结实。其后四年连续将这些种子后代在早造条件下加以培育,并每年选择其抽穗成熟提早植株,经过连续四年的选育,终于获得了具有适应早造季节条件的早季稻品种。揭露了早季稻起源的规律性。
Our working people have cultivated many varieties of rice. In order to understand and master the related laws of rice species evolution, we used the “short species” of typical late-season rice varieties from 1963 to 1967 in the second stage of their seed plants and individual development of tillers, 9 hours / day) for several days but does not meet its hereditary requirements, and then move it from the darkroom to the early combination of natural long days (14-15 hours / day) to make it strong. In the following four years, these offspring of seeds were continuously cultivated under the conditions of early establishment, and their mature and early plants were selected for heading each year. After four years of continuous breeding, the early-season varieties with early-season conditions were finally obtained. Revealed the regularity of the origin of early rice.