UJI KEMAMPUAN SPORA CENDAWAN MIKORIZA ARBUSKULA (CMA) LOKAL BALI PADA PERTUMBUHAN TANAMAN KEDELAI (Glycine max L.)

Abstract

Necessity of soybean in Indonesia increase every year along with population growth. The goverment need to import
the soybeans from abroad. Soybean in Indonesia are generally planted in ricefield and upland (dryland) which have potential
of deficiency water. Water deficiency can caused the reduction of soybean production. Therefore some alternatives are needed
to increase the yield of soybean productivity, one of them is applying arbuscular mycorrhizal fungi (AMF). The aim of this
research was to know the dosage of isolates AMF to increase the growth of soybean. The experiments conducted over 2
months at Agriculture Faculty’s Greenhouse, Udayana University. The research use Completely Randomized Design which
consists of 5 treatments, which are : without inoculation/negative control (M0), 50 spores AMF (M1), 100 spores AMF (M2),
150 spores AMF (M3), and ZA/positive control (M4). The results showed that, the inoculation of spores AMF Bali indigenus
were significantly different (P<0,05) on the number of leaves, leaf length, root fresh weight, and percentage of root
colonization. The parameter of plant height, leaf width, plant fresh weight, and plant dry weight are no significant different
(P>0,05) based on analysis of variance (ANOVA) level 5%. Doses 50 spores AMF (M1) is the dose of inoculants has been
able to increase number of leaves, leaf length, root fresh weight, and percentage of root colonization.
Keywords : fungi mycorrhizal arbuscular, mycorrhiza doses, soybean.