FUNGICIDE EFFECT ON Glomus intrarradices IN DIFFERENT GENOTYPES OF BEANS (Phaseolus vulgaris L.), OAT (Avena sativa L.), AND WHEAT (Triticum aestivum L.) GROWTH CULTIVATED IN TWO SOIL TYPES UNDER GREENHOUSE CONDITIONS

Gardezi, A. K., Márquez-Berber S. R., Figueroa-Sandoval, B., Iourii Nikolskii Gavrilov, Larqué-Saavedra U. , Escalona-Maurice M. J.

ABSTRACT

The objective of this research was to evaluate the effect of fungicides on the association with Glomus intraradices and soil contamination on three genotypes of beans (Phaseolus vulgaris L.), one of oat (Avena sativa L.), and another one of wheat (Triticum aestivum L.). The study was done under greenhouse conditions at the Montecillo Campus of the Postgraduate College, Mexico. Two soils were used, one irrigated with sewage water and the other one with clean water from a well. Half of the plants were inoculated with Glomus intraradices. Metacaptan was used as a fungicide applied to half of the seeds. The pH of the soil was alkaline. Electric conductivity, and organic matter, nitric and ammoniac nitrogen, phosphorous, copper and nickel quantities were higher on the soils irrigated with sewage water. The soil contamination did not affect significantly plant responses in this study. It is concluded that endomycorrhiza inoculation (Glomus intraradices) gave better growth and yield, especially in beans. The application of fungicides improved plant growth.

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