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

Xiaoping Yu, Guorui Wu, Tao LinYong, Chengliang Wang, XU Qiqang

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Abstract

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.

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What this paper is about

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.

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Available abstract

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.

Key concepts: Brown planthopper, Planthopper, Population, Biology, Rice plant, Agronomy, Horticulture, Toxicology

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Effects of Rice Resistant Varieties on Population Growth of Brown Planthopper and Whitebacked Planthopper — Research Paper | ScholarLens