Tao LinYong

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Xiaoping Yu

Hunan Cancer Hospital

Jianming Chen

Ningbo No.6 Hospital

Zhongxian Lü

Institute of Plant Protection

Liu Guang-jie

Zen-Noh (Japan)

Cheng Jiaan

State Key Laboratory of Rice Biology

Kong LingJun

Chengliang Wang

Beijing Jiaotong University

Tong ZhongHua

Xusong Zheng

ZheJiang Academy of Agricultural Sciences

Hong-lan YAN

China National Rice Research Institute

Cooperative Institutions

Institute of Plant Protection

ZheJiang Academy of Agricultural Sciences

China National Rice Research Institute

Zhejiang University

Ministry of Agriculture and Rural Affairs

China Jiliang University

Ningbo No.6 Hospital

Hong Kong Polytechnic University

Beijing University of Chemical Technology

South China University of Technology

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Some physiological changes in rice plants infested by the white-backed planthopper, Sogatella furcifera.

Zhongguo shuidao kexue (2000)

Jianming Chen Xiaoping Yu Ge XiuCun Zhongxian Lü Cheng Jiaan

Physiological response of rice plants infested by the white-backed planthopper (Sogatella furcifera) (WBPH) was carried out. The results showed that after rice plants were infested by WBPH, photosynthesis rate and chlorophyll contents in leaves of susceptible rice varieties (TN1 and Shanyou 63) declined obviously compared to those of resistant rice variety (N22); activity of superoxide dismutase (SOD) increased and of catalase (CAT) and peroxidase (POD) decreased in susceptible rice varieties, but activity of SOD and POD went up, CAT went down in resistant rice variety N22. In the body of susceptible rice varieties, except for Ala, other free amino acid contents increased, especially Asp, Thr, Val, Met increased rapidly. In resistant rice variety, contents of Asp, Val also increased obviously, but ones of Thr, Met and Ala decreased significantly.

Planthopper

Brown planthopper

Rice plant

Delphacidae

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Effects of insecticides on the symbiotes in brown planthopper.

Acta Agriculturae Zhejiangensis (2000)

Hongxing Xu Zhen XuShong Tong ZhongHua Zhongxian Lü Jianming Chen

The effects of methamidophos and omethoate on the number of symbiotes in brown planthopper (BPH),Nilaparvata lugens Stl,were studied.The results showed that symbiotes in the brown planthopper were adversely affected after treated with two insecticides.The symbiotes in the newly emerged brachpterous female decreased by over 50% as compared with the check,after their low-instar nymphs were treated with methamidophos.The number of symbiotes in BPH decreased with the increase of insecticide concentration.Far less symbiotes were found in BPH treated with omethoate for four days than that treated with omethoate for only two days.

Omethoate

Brown planthopper

Methamidophos

Planthopper

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Effects of Rice Resistant Varieties on Population Growth of Brown Planthopper and Whitebacked Planthopper

Zhongguo shuidao kexue (1993)

Xiaoping Yu Guorui Wu Tao LinYong Chengliang Wang XU Qiqang

The life table and Morris-Watt mathematical model were used as the methods of comprehensive evaluation to analysis the resistance levels of 5 rice varieties to brown planthopper (BPH) Nilaparvata lugens Stal and whitebacked planthopper (WBPH) Sogatella furcyera Horvath. The results showed that variety IR36, Shanyou 6, Xieyou 10, Xiushui 620 and Bing 664 had significantly inhibiting effects on the population growth of BPH, but variety Xiushui 620, Bing 664 and Xieyou 10 were moderately resistant to WBPH. The results also indicated that the ovipositional stage of adults of both BPH and WBPH was the key stage on which the resistant varieties had the most adverse influence.

Brown planthopper

Planthopper

Rice plant

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Citations (1)