Synergistic interactions between endomycorrhizas, rhizobium japonicum strain CB 1809 and soybean

Place

University of the Philippines Los Banos, College, Laguna

Date

1-12-1982

Abstract

A pot experiment at UPLB-CA and a field experiment in an infertile field in Quezon were done to evaluate the effect of endomycorrhizal and combined endomycorrhizal and R. japonicum strain CB 1809 inoculations on soybean.

Soybean plants responded differently to the eight exotic and indigenous endomycorrhizal isolates both in field and pot experiments. Differences in mean height between treatments were significant. Inoculated plants were noticeably larger, more vigorous, taller, greener and healthier than the non-inoculated control plants.

In the field experiment, the number of pods, yield, dry weight and height of soybean inoculated with endomycorrhizas and R. japonicum were significantly higher compared with plants inoculated with either endomycorrhizas or R. japonicum alone. Not all plants inoculated with the endomycorrhizal isolates alone exhibited significant nodule formation. However, when such isolates were combined with R. japonicum, the plants showed strikingly increased nodule formation compared with plants inoculated with R. japonicum alone.

Location

UPLB Main Library Special Collections Section (USCS)

College

College of Agriculture and Food Science (CAFS)

Language

English

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