The role of endophytic bacteria and mycorrhizae fungus as plant growth inducer of white turmeric

Abstract

The use of endophytic bacteria and mycorrhizae fungus as plant growth inducer has been known. Endophytic bacteria could promote the growth of their host plant and Mycorrhizae could promote the growth of almost all species of plants. This study was aimed to investigate the effect of endophytic bacteria (Bacillus paramycoides KPU2, Klebsiella quasipneumoniae KPU4, Klebsiella pneumoniae KPR4.2, Burkholderia lata KPR8, Burkholderia metallica KPR9, and Kosakonia sachari KPD5), mycorrhizae fungus, and consortium both of the potential microbes on the growth of white turmeric. The experiment was set up at lath house for 10 months. The results of this study showed that single inoculation was better than that multi strains inoculation. Single endophytic bacteria inoculation and mycorrhizae inoculation produced the higher tuber dry weight of white turmeric (1059,33 gr and 918 gr, respectively). Endophytic bacteria were the most efficient inoculant compared to the other inoculant or treatment and significantly increased the number of leaf and sapling (14,33 and 2,83, respectively). The maximum plant height was observed in mycorrhizae inoculation (109,75 cm). Based on the microscopic observation of root infection, endophytic bacteria and mycorrhizae fungus could infected the root of white turmeric with the percentage of root infection is 25,55%. The results suggested that single endophytic bacteria and single mycorrhizae inoculation can be employed for plant growth inducer of white turmeric.