Field Evaluation of Alternaria alternata as Mycoherbicide for the Management of Rumex dentatus L

Issue Date

3-2010

Abstract

The study investigated the mycoherbicidal potential of Alternaria alternata to control Rumex dentatus L., a problematic weed of wheat (Triticum aestivum L.), under field conditions. Two wheat cultivars, viz. Inqalab 91 and Punjab 96, were co-cultivated with R. dentatus at 1:1 crop-weed ratio. Mycoherbicidal formulation was prepared in 20% canola oil emulsion with 10(7) conidia mL(-1). The mycoherbicidal formulation was sprayed at the 2-3 and again at the 4-5 leaf stage of the weed. Application of mycoherbicide significantly reduced the biomass of the target weed species up to 88% and enhanced the number of fertile tillers, shoot and root biomass and grain weight in both wheat cultivars. The study concludes that A. alternata can be used as a potential biological agent for the management of R. dentatus in wheat.

Source or Periodical Title

Philippine Agricultural Scientist, The (Formerly: The Philippine Agriculturist)

ISSN

0031-7454

Volume

93

Issue

1

Page

116-120

Document Type

Article

College

College of Agriculture and Food Science (CAFS)

Frequency

quarterly

Physical Description

graphs ; references

Language

English

Subject

Alternaria alternata, canola oil emulsion, mycoherbicide, Rumex dentatus, weed management

En – AGROVOC descriptors

ALTERNARIA ALTERNATA; RUMEX; TRITICUM AESTIVUM; WHEAT; BIOLOGICAL WEED CONTROL

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