[Population dynamics of beauveria bassiana in masson pine plantation ecosystem].
Annual dynamics of Beauveria bassiana in 12 experimental plots of masson pine plantation inoculated at different doses and frequencies was investigated. The results showed that inoculum density of B. bassiana in the plantation was correlative to released inoculum in initial stage after B. bassiana released. In this period, the amount of inoculum densities at different niches of the plantation was in order of litter layer > crown layer > soil layer. Four months later, inoculum densities in X-plots (2 releases a year), Y-plots (1 release a year) and Z-plots (1 release every two years inoculated one year ago) fluctuated stably within certain ranges. Therefore, the optimal frequency and dosage of inoculation releasing B. bassiana was determined as twice a year, and 37.5 g.hm-2 (10(11) conidia.g-1) each time.
Wang
Bin
B
Zhejiang University, Hangzhou 310029.
Fan
Meizhen
M
Li
Zengzhi
Z
D017753:Ecosystem; D006999:Hypocreales / Q000502:physiology*; D028223:Pinus / Q000382:microbiology / Q000502:physiology*; D011157:Population Dynamics; D014197:Trees / Q000382:microbiology / Q000502:physiology*