Effect of salt tolerant Trichoderma spp on growth and nodulation of mungbean (Vigna radiata L.)

Apart from their biocontrol potential, Trichoderma spp stimulate plants growth through several direct and indirect effects that influence various growth parameters. In this study, effect of thirteen salinity tolerant isolates of Trichoderma spp from tropical island ecosystem on seed germination, seedling vigor and nodulation of Vignaradiata was studied. The highest vigour was observed for isolate TNR4 with maximum shoot length (39.13 cm). Overall seed germination rate was increased with highest germination of 80% and vigor index of 4730. Trichoderma treated plants produced greater number of root nodules per plant than control plants indicating the fact that Trichoderma spp. enhances root nodulation of mungbean crop. Maximum nodulation was recorded due to application of isolates viz., TNR4, TV3, NRT1, and TGD1, respectively.