Mechanism of resistance of peanut, arachis hypogea L. against the peanut leafhopper, Empoasca Ricei Dwarakowska and Pawar

Issue Date

4-1999

Abstract

Five peanut entries, namely NC Ac 343, Myria (PC), UPL Pn 4, UPL Pn 6 and IPB Pn 83-68-140, were tested to determine the mechanism of resistance to the peanut leafhopper, Empoasca ricei Dworakowska and Pawer. These were selected based on different levels of resistance to E. ricei. NC Ac 343 was the most resistant entry, which showed both antibiosis and antixenosis effects. This entry had the lowest number of adults that settled on the test plants and had twice the number of trichomes per microscopic field than those of the susceptible cultivar IPB Pn 83-68-140 and UPL Pn 6. Nymphal development was longer while adult longevity was comparatively shorter on the resistant cultivars NC Ac 343 and Myria (PC). A significant negative correlation was found between various morphological characters and number of adult leafhoppers.

Source or Periodical Title

The Philippine Entomologist

ISSN

0048-3753

Volume

13

Issue

1

Page

43-58

Document Type

Article

Frequency

semi-annually

Physical Description

tables; graphs

Language

English

En – AGROVOC descriptors

ARACHIS HYPOGAEA; GROUNDNUTS; EMPOASCA; CICADELLIDAE; PEST RESISTANCE; PEST CONTROL; PLANT PROTECTION

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