Preliminary evaluation of radiation-modified kappa carrageenan and chitosan on plant resistance to insect pests of rice

Issue Date

10-2014

Abstract

Biological efficacy of radiation-modified carrageenan and chitosan was preliminarily evaluated using rice variety NSIC 216 under field conditions at the Central Experiment Station at UPLB during wet season (August to December), 2013. The effects of organic plant growth promoter (PGP) versus inorganic fertilizers and their combination were assessed. Preliminary data on the effect of PGP versus inorganic fertilizers and their combination on the occurrence and abundance of pests and other arthropods showed more or less similar trends between treatments regardless of plant growth stage. However, prior results showed that Kappa carrageenan and chitosan with concentrations as low as 50 ppm has promising effect on plant vigor, presence of tungro virus infection, and has influence on population density of the beneficial arthropods despite the weather disturbances experienced during the season. These results have yet to be confirmed during the dry season (February to May), 2014.

Source or Periodical Title

The Philippine Entomologist

ISSN

0048-3753

Volume

28

Issue

2

Page

221

Document Type

Article

Frequency

semi-annually

Language

English

En – AGROVOC descriptors

CARRAGEENANS; CHITOSAN; INORGANIC FERTILIZERS; PLANT GROWTH SUBSTANCES; PLANT GROWTH STIMULANTS

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