论文部分内容阅读
从1982—1985年经过四年连续的三系提纯探讨,先后完成了V20A、V41A及珍汕97A和IR26,IR30的“成对法”与“改良法”的提纯程序,已生产三系原种三万五千余斤。从试验观察及海南与本市田间纯度检查,杂交一代原种与对照种产量差异显著。三系原种一代的杂种一代纯度检验,V20A提纯原种纯度均达99.1～99.9％,主要组合杂交一代威优6号、汕优6号和四优30纯度均达99％左右;威优20A原种花粉败育类型稳定范围:典败60％、圆败40％,染色株率仅0.33％左右,套袋与盆栽隔离自交基本不孕(未发现结实)。
From 1982 to 1985 after four years of continuous three-line purification study, has completed the V20A, V41A and Zhenshan 97A and IR26, IR30 “paired method” and “improved method” purification procedures have been produced three lines of original Thirty five thousand pounds. From the experimental observation and field tests in Hainan and the city, there was significant difference in the yield between the hybrid and the control. The pure purity of V20A purified varieties reached 99.1-99.9%. The purity of the main combination crosses Weiyou 6, Shanyou 6 and Siyou 30 reached 99% Pollen abortion type of the original species stable range: Code defeated 60%, round defeat 40%, stained strain rate of only about 0.33%, bagging and potted self-fertility basic infertility (not found strong).