Security research on different maize varieties to the 48% atrazine WP
By using the techniques of laboratory bioassay, security assessment on different maize varieties to 48% atrazine WP was determined in this paper. The effects of 48% atrazine WP on the germination rate, root length, shoot height, fresh weight and Chlorophyll content were studied and the results showed that sensitivity on different maize varieties to it was different. Maize variety Ludan9 002,and Zhongkel 1 were more sensitive than Jinsai6 850, when treat concentration was more than 1.5 g/L, there was inhibiting in the growth of maize, and the shoot safety of three maize varieties were greater than their roots. Ludan981, Yuyu26 and Zhongdan5 384 were the most sensitive, and there were inhibiting at 0.75 g/L, and the roots safety of three maize varieties were greater than their shoots. The regression analysis indicated that the inhibiting of root length,shoot height and fresh weight had linear relation with the log of the dosages. The inhibiting regression equation and I_(50) of root length,shoot heightand fresh weight were gained by the method of Finney.
NETL
NSTL
万方数据
维普
