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Paper ID: 133

MYCORRHIZA BIOFERTILIZER AND INTERCROPPING WITH SOYBEAN INCREASE ANTHOCYANIN CONTENTS AND YIELD OF UPLAND RED RICE UNDER AEROBIC IRRIGATION SYSTEMS

Authorship

Wayan Wangiyana12*, I Gusti Putu Muliarta Aryana12, Ni Wayan Dwiani Dulur2

 1) Post Graduate Program, University of Mataram, Mataram, Lombok, NTB, Indonesia

2) Faculty of Agriculture, University of Mataram, Mataram, Lombok, NTB, Indonesia

w.wangiyana@unram.ac.id

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Abstract

Red rice kernels are known to have high antioxidant properties due to its anthocyanins, and application of biofertilizer containing arbuscular mycorrhizal fungi (AMF) was reported to increase anthocyanin content in the grains. This study aimed to examine the effects of intercropping with soybean and mycorrhiza biofertilizer application on grain anthocyanin content and yield of two upland red rice genotypes under aerobic irrigation system. The field experiment was conducted in Beleke, West Lombok, Indonesia, from March to July 2018, in a Split Split-Plot design with three blocks and three treatment factors, namely upland red rice genotypes as the main plot (G04 and G10), intercropping as the sub-plot (monocrop or intercropping with soybean), and mycorrhiza biofertilizer as the sub-sub-plot (without or with biofertilizer application). The results indicated that both intercropping with soybean and biofertilizer application significantly increased grain anthocyanin contents and yield components of the upland red rice genotypes, but both genotypes showed differences only in grain yield per clump. However, there was a three-way interaction effect on percentage of filled grain number, and two-way interaction effects on anthocyanin contents in the grains. Mycorrhiza application resulted in more significant increases in anthocyanin contents and grain yield of the upland red rice plants in intercropping with soybean than in monocrop. Therefore, application of mycorrhiza biofertilizer and intercropping with soybean, in addition to increasing grain yield, are also capable of increasing health values of the husked grains of the upland red rice grown on raised-beds in aerobic irrigation system.

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