The ground base was evaluated and analysed by using biological index and variation of population of benthon which are effected by bottom water and mud environment.
The paper also reviews polyphenolic types , property, distribution, physiological function, biological synthesis and genetic variation in tobacco.
本文还综述了烟草多酚的种类、特性、分布、生理功能、生物合成和遗传变异等内容。
3
The paper reports the study on the variation way of the relationship between mechano-physical properties as well as biological characteristics and planting periods of ramie.