本文研究了番茄晚疫病菌在15% T-Rye,Oat,PDA这3种培养基上的扩繁效果,同时应用晚疫病生理小种1,3,4,7

This paper studies the tomato late blight bacteria in 15% T-Rye,Oat,PDA this three kinds of the culture medium enlargement numerous effect,and applied late blight of physiological small,3,4,7,9 1 of different concentrations of sporangium of tomatoes leaves and suspending liquid in seedling stage from the body artificial inoculation,the blade was studied.The results show that:(1) the pathogen and three in the culture medium can grow,but with 15% T-Rye medium the best effect of spores most; In the culture medium of Oat than 15% T Rye-is a bit poor,a small,but because the sporangium Oat than 15% T-Rye easier to obtain,so Oat medium can be used to save late blight poison.PDA medium effect is poorer,does not meet with numerous expansion.(2) the seedling inoculation used the sporangium slurry concentration for 4000 a/mL,according to the pathogenesis of 5 days on resistance identification; From the body of the concentration of the blade vaccination for 2000 sorus
你自己看看