The relationship of toxicity between prominent bactria of infected canals was studied in this article with animal monogerm tcst.

采用限菌性动物法,对感染根管内几株常见菌之间在毒力学上关系作了究。

Based on the years experiences, the author summarized and provided the main criterion and technique measures for improved cytoplasmic male sterile monogerm hybrid sugarbeet of seed reproduction.

摘要总结了多年雄性不甜菜单胚型杂交种良种繁经，对该类品种良种繁主要原则和技术措施进行探讨。