Pengaruh Vinase Sorgum dan Endomikoriza terhadap Pertumbuhan Semai Pongamia pinnata

Abstract

Pongamia pinnata known as malapari is a tree species found in coastal areas that potentially as bioenergy producer. Efforts to ensure the availability of malapari good quality seedlings can be obtained through application of liquid organic fertilizer (LOF) and mycorrhizal inoculation. Vinasse is a liquid waste produced by the process of sorghum bioethanol production, and it contains nutrients which are useful for plant growth. Inoculation of mycorrhizal fungi is able to support the growth success of malapari seedlings through nutrients absorption. The objectives of this research were to test the appropriate concentration of sorghum liquid organic fertilizer and endomycorrhizal inoculum as well as to test the combination effect of vinasse and endomychorrizal inoculum application towards malapari seedling growth. The vinasse treatments were consisting of 3 levels: 0% (V0), 2.5% (V1), 5% (V2), and mycorrhizal treatment were consisting of 3 levels: without mycorrhiza (M0), inoculated with Glomus aggregatum (M1), and inoculated Glomus mosseae (M2). The results of this research showed that mycorrhizal treatment had very significant effect to promote the percentage of mycorrhizal infection, and also had significant effect to height growth and total dry weight of malapari seedlings.