[ Objective] The paper was to discuss the control effect of tomato and maize intereropping against tomato powdery mildew. [Method] Three tomato varieties （6629, .[in＇aihong and Yuxing） and two maize varieties were ...[ Objective] The paper was to discuss the control effect of tomato and maize intereropping against tomato powdery mildew. [Method] Three tomato varieties （6629, .[in＇aihong and Yuxing） and two maize varieties were selected as materials, and control effects of maize and tomato intercmpping against tomato pow- dery mildew were studied in the paper. [ Result ] Tomato and maize intercmpping had obvious control effect against tomato powdery mildew. The relative control effect of 6629 was the highest （61.1%）, followed by Jin＇aihang （49.5%）, and the control effect of Yuxing was the lowest （30.4%）. [ Conclusion] The study provides the theoretical basis for pollution - free production of tomato.展开更多
[ Objective ] The paper was to explore the pathogenic mechanism of tomato powdery mildew, and to study the effects of the disease on photosynthetic characteristics of tomato. [ Method ] With four tomato varieties as m...[ Objective ] The paper was to explore the pathogenic mechanism of tomato powdery mildew, and to study the effects of the disease on photosynthetic characteristics of tomato. [ Method ] With four tomato varieties as materials, the pathogen of tomato powdery mildew was artificially inoculated. After the varieties were infected, the parameters including net photosynthetic rate, stomatal conductance and transpiration rate of tomato leaf were measured by Li-6400 portable photo- synthesis detector under natural lighting conditions. [ Result] The net photosynthetic rate, stomatal conductance and transpiration rate of four tomato varieties all decreased after infection. However, the decrease extent of these parameters of four varieties was different. The parameters of seriously damaged Jinyangdajuxdng （ No. 4） and Xinsheng No. 1 （ No. 5 ） decreased greatly, while the parameters of slightly damaged Lujia （ No. 13 ） and improved 98-6 decreased lightly. [ Condu- sion] The results could provide theoretical basis for the study on pathogenic mechanism, new prevention way and resistance breeding of tomato powdery mildew.展开更多
文摘[ Objective] The paper was to discuss the control effect of tomato and maize intereropping against tomato powdery mildew. [Method] Three tomato varieties （6629, .[in＇aihong and Yuxing） and two maize varieties were selected as materials, and control effects of maize and tomato intercmpping against tomato pow- dery mildew were studied in the paper. [ Result ] Tomato and maize intercmpping had obvious control effect against tomato powdery mildew. The relative control effect of 6629 was the highest （61.1%）, followed by Jin＇aihang （49.5%）, and the control effect of Yuxing was the lowest （30.4%）. [ Conclusion] The study provides the theoretical basis for pollution - free production of tomato.
基金Supported by Research Foundation of Sichuan Education Department "Utilization of Diversity of Tomato Varieties for Continuous Control of Tomato Disea-ses"(07ZC047)~~
文摘[ Objective ] The paper was to explore the pathogenic mechanism of tomato powdery mildew, and to study the effects of the disease on photosynthetic characteristics of tomato. [ Method ] With four tomato varieties as materials, the pathogen of tomato powdery mildew was artificially inoculated. After the varieties were infected, the parameters including net photosynthetic rate, stomatal conductance and transpiration rate of tomato leaf were measured by Li-6400 portable photo- synthesis detector under natural lighting conditions. [ Result] The net photosynthetic rate, stomatal conductance and transpiration rate of four tomato varieties all decreased after infection. However, the decrease extent of these parameters of four varieties was different. The parameters of seriously damaged Jinyangdajuxdng （ No. 4） and Xinsheng No. 1 （ No. 5 ） decreased greatly, while the parameters of slightly damaged Lujia （ No. 13 ） and improved 98-6 decreased lightly. [ Condu- sion] The results could provide theoretical basis for the study on pathogenic mechanism, new prevention way and resistance breeding of tomato powdery mildew.
