Interaksi Plant Growth Promoting Rhizobacteria Dosis Pemupukan P dalam Memacu Pertumbuhan dan Mengendalikan Penyakit Antraknosa pada Cabai Merah

Abstract

The aims of this research were to investigate  the effect of Plant Growth-Promoting Rhizobacteria (PGPR) and P fertilizer on  anthtracnose caused by Colletotrichum sp. , plant growth and yield of hot pepper under field condition.. The research was arranged in split plot design with two factors. The first factor is aplication of PGPR which consists of two treatments; without PGPR and with PGPR.. The second factor is application of P fertilizer which consists of four treatment of SP 36 fertilizers; 250 kg , 187.5 kg , 125 kg, and 62.5 kg . Application P fertilizer affect growth parameters of chili pepper but have no effect on antrachnose disease.  PGPR was able to control antrachnose  under field application, and promoted plant growth parameters and yield.  PGPR application increase emergence rate  and vigor index of treated seeds.  There was interaction between PGPR  and  P fertilizer dose regarding with growth, with optimum field dose is  125 kg SP 36/ha.