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

采用限性动物实验的方法,对感染根管内几株之间在毒力学上的关系作了究。

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育胚型杂交种的良种繁育实践经验，对该类品种的良种繁育主要原则和技术措施进行探讨。