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对６０３份国外、省外水稻品种的光温反应特性分析可知，山东从纬度３２°～４０°Ｎ之间的国家和省市引种，较易获得成功；如需从３２°Ｎ以南地区引种，应引感光性弱的或中间型的早粳或早籼品种；如需从４０°Ｎ以北地区引种，则以引进中、晚熟品种为宜。
Analysis of the light and temperature responses of 603 foreign and non-rice cultivars indicates that it is easier to succeed in Shandong Province from the countries and provinces where the latitude is between 32 ° and 40 ° N, and if it is to be introduced from the south of 32 ° N , Should lead to photosensitive weak or intermediate early japonica or early Indica varieties; for the introduction of the region north of 40 ° N, then the introduction of medium and late varieties is appropriate.