REACTIVE OXYGEN SPECIES ACCUMULATIONS, PHENYLALANINE AMMONIA-LYASE ACTIVITY AND PHENOLIC ACID COMPOSITION OF SOYBEAN [GLYCINE MAX(L.) MERR.] CV. GROBOGAN THAT EXPOSED TO MULTIPLE STRESS OF PURPLE NUTSEDGE (CYPERUS ROTUNDUS L.) INTERFERENCE AND DROUGHT - S. Darmanti; Santosa; L. H. Nugroho; K. Dewi (Journal of Animal and Plant Sciences, 2018)