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在本站解放前遗留之水稻品种中,从已往资料了解,秈稻云南白、早禾4号、中黔2号均具有高产特性,但两者非常晚熟。为通过春化方法提早成熟,并研究春化处理的技术和方法,以便进一步掌握特性,选择杂交亲本起见,随在解放初期(1951及1952年)进行春化工作。一.1951年春化试验春化处理天数分做不处理及处理5天、10天、15天4种。播种期分做3月30日、4月5日、4月10日、4月16日4种。4月16日为当地一般正常播种期。4月以前地温平均在12℃以下(10公分深度)。当时试验另一意图,为抓住春化阶段,将完而未完时期进行早期播
Among the rice varieties left before the liberation of this site, it has been learned from the past data that the indica rice Yunnan Bai, Zaohe No.4 and Zhongqian No.2 both have high yield characteristics, but the two are very late-maturing. In order to prematurely mature through vernalization and to study the techniques and methods of vernalization in order to further understand the characteristics, the vernalization work was carried out in the early period of liberation (1951 and 1952). A spring vernalization test in 1951 the number of days divided into do not handle and deal with 5 days, 10 days, 15 days 4 kinds. Seeding points do March 30, April 5, April 10, April 16 4 species. April 16 for the local general normal sowing period. Before April the average ground temperature below 12 ℃ (10 cm depth). At that time, another attempt was made to test the early stages of sowing the vernalization stage and ending the course