Growth, nodulation and yield of mungbean (Vigna radiata L.) as influenced by coinoculation with Rhizobium and plant growth promoting rhizobacteria.

摘要

A pot experiment was conducted in a greenhouse to study the effect of co-inoculation with Rhizobium japonicum [Bradyrhizobium japonicum] and 2 plant growth promoting rhizobacterial (PGPR) strains (Q7 and Q14) on mung bean. R. japonicum, Q7 and Q14 showed better results than the uninoculated control whether inoculated alone or in combination with each other. The co-inoculation of Q7 and Q14 with R. japonicum showed better results than R. japonicum alone. Q7 + R. japonicum increased plant height, root length, number of nodules and number of grains pod-1 by 10.8, 5.5, 56.5 and 37.7%, respectively, compared with R. japonicum alone, while Q14 +R. japonicum decreased these parameters but increased the number of pods plant-1, 100 grain weight and number of grains plant-1 by 66.1, 43.1 and 68.6%, respectively, compared with R. japonicum alone. Q7 promoted vegetative growth but grain size was less compared with the other treatments while Q14 showed bold grain size and more yield..