<FONT face="Verdana">Comparison on Electrical Penetration Graph (EPG) of Two Populations of <EM>Nilaparvata lugens</EM> with Different Virulence</FONT>

PAN Jian-hong,CHEN Feng,HE Jia-chun,LAI Feng-Xiang,FU Qiang*

doi:10.3969/j.issn.1001-7216.2011.01.013

Chinese Journal OF Rice Science >

2011 , Vol. 25 >Issue 1: 86 - 90

DOI: https://doi.org/10.3969/j.issn.1001-7216.2011.01.013

研究报告

Comparison on Electrical Penetration Graph (EPG) of Two Populations of Nilaparvata lugens with Different Virulence

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State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China; *Corresponding author, E-mail: qiangfu1@yahoo.com.cn

Received date: 1900-01-01

Revised date: 1900-01-01

Online published: 2011-01-10

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Abstract

The electrical penetration graph (EPG) of two populations of Nilaparvata lugens with different virulence（TN1 population, Mudgo population） on susceptible rice variety TN1 and resistant rice variety Mudgo (with resistance gene Bph1) were studied. The results showed that duration of I waveform significantly affected by population of N. lugens and rice variety, followed by A waveform, then S waveform. The sex of N. lugens did not affect the three types of waveform. Three virulent treatments (TN1 population on TN1, Mudgo population on TN1 and Mudgo) showed shorter S and A waveforms compared with nonvirulent treatment (TN1 population on Mudgo). And a significant difference in A waveform between virulent treatments and nonvirulent one was found. The I waveform under the three virulent treatments was significantly shorter than that under nonvirulent treatment. The accuracies to distinguish the virulence of TN1 population and Mudgo population were 82.6% and 100%, respectively with 75 min of I waveform in a 3h record period as a criterion(i.e., I waveform more than 75 min represented virulent, less than 75 min represented nonvirulent). It is suggested that the duration of I waveform is a possible alternative for monitoring the virulence of N. lugens individual.

Key words： Nilaparvata lugens; virulence; electrical penetration graph; rice

Cite this article

PAN Jian-hong,CHEN Feng,HE Jia-chun,LAI Feng-Xiang,FU Qiang* . Comparison on Electrical Penetration Graph (EPG) of Two Populations of Nilaparvata lugens with Different Virulence[J]. Chinese Journal OF Rice Science, 2011 , 25(1) : 86 -90 . DOI: 10.3969/j.issn.1001-7216.2011.01.013

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