Effects of ultraviolet-B irradiated rice plants on the growth and development of the rice leaf folder, Marasmia Patnalis Bradley

Issue Date

10-1998

Abstract

The effect of ultraviolet-B (UV-B) irradiated rice leaves on the growth and development of the rice leaf folder, Marasmic patnalis Bradley was investigated. Two experiments were conducted using UV-B irradiated whole rice plants and detached leaves. Results showed that UV-B irradiated 44-day old leaves of whole plants had lower levels of phenolic content and were feeding stimulant to the test insects. UV-B irradiated detached 22-day old leaves had higher phenolic content and antifeedant and growth inhibitory to the larvae. Adults reared on older whole plants irradiated with UV-B laid fewer eggs. The reduction in the number of eggs suggests that the effects of these kinds of compounds were crucial at the later growth and development stages. Results derived from this study encouraged further investigations to determine the effects of partially-purified extracts of UV-B irradiated leaves on the test insect.

Source or Periodical Title

The Philippine Entomologist

ISSN

0048-3753

Volume

12

Issue

2

Page

179-193

Document Type

Article

Frequency

semi-annually

Physical Description

tables; graphs

Language

English

En – AGROVOC descriptors

ORAYZA SATIVA; MARASMIA; ULTRAVIOLET IRRADIATION; FLAVONOIDS

This document is currently not available here.

Share

COinS