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水稻品种的生育期和适应性与品种的光温生态型有密切关系。要选育出早熟、抗灾、适应性强的高产品种,应首先了解当地理想的光温生态型,以作为亲本选配、后代选择和品种推广的依据。为此,我们从一九七六年以来,连续三年进行了黑龙江省水稻品种对光温条件反应特性的研究。材料与方法选用已在我省正式推广,或有相当种植面积的品种,以及我省搜集保存的综合性状较好适应性较强的品种共计66个,做为供试材料,处理(见表1)。
The growth and adaptability of rice varieties are closely related to the light and temperature ecotypes of rice varieties. To breed precocious, resilient and adaptable high-yielding varieties, we should first understand the local ideal light-temperature ecotype to serve as the basis for the selection of the parents, the selection of future generations and the promotion of varieties. To this end, we have studied the response characteristics of rice varieties in Heilongjiang Province to light and temperature for three years in a row since 1976. The selection of materials and methods has been officially promoted in our province, or has a considerable area of cultivars, and the province to collect and save the comprehensive traits of a better adaptability of a total of 66 varieties, as the test material, treatment (see Table 1 ).