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汕优 6 44是由湖南杂交水稻研究中心选育出的强恢复系 6 44与珍汕 97Ａ配组而成的 ,1 999年由我县引入示范表现高产。 2 0 0 0年我们首次春季制种 5 .0ｈｍ2 ,获得平均单产3.0 1ｔ/ｈｍ2 的好收成。现将其主要制种技术介绍如下。1 644的主要特征特性6 44在新干县 3月 2 4日播
Shanyou 6 44 is a combination of strong restorer line 6 44 and Zhenshan 97A bred by Hunan Hybrid Rice Research Center. In 1999, the demonstration of high yield was introduced by our county. For the first time in spring, we planted 5.0hm2 in spring in 2000 to obtain a good yield with an average yield of 3.01t / hm2. Now its main seed production technology is as follows. The main characteristics of 1 644 are 444 broadcast in Xinchuan County on March 24