摘要
在１９７３年用美国品种兰贝利与早籼珍龙选杂交，从Ｆ２起采用系谱法选择，１９７７年在Ｆ５群体中选得光叶、矮秆、柱头外露和花时早的单株，与ＢＴ型不育系辐育１号Ａ成对测交。Ａ逐年连续成对追踪测交，回交转育，至１９８８年秋，选育出性能稳定的包珍兰Ａ、Ｂ。包珍兰Ａ具有不育性稳定、恢复系众多、无胞质负作用和早熟、光身、优质等特点。
In 1973 the USA Labelle was crossed with Zhen-Long-Xuan(early maturing indica ). Selection was conducted from F2 by using pedigree method. In 1977 a plant with smooth leves, dwarf stalk,exserted stigma and early flowering was selected out from F5 population to make test-cross with Fu-yu 1 A (a sterile line of BT type ) in pairs. Since then, successive test- crosses and backcrosses were made year after year. In the autumn of 1988 Bao-Zhen-Nan A, B were developed. Their characters were very stable. Bac-Zhen-Nan A was characterized by stable sterility,having many restorer lines, early maturing,smooth leaves and good quality. In addition,it had not any negative effects of cytoplasm.
出处
《杂交水稻》
CSCD
北大核心
1989年第4期18-19,共2页
Hybrid Rice
