Abstract:

To study the suitable seeding container substrate in Melia azedarach cultivation, pearlite and vermiculite were mixed in peat. Effect of different container nursery substrate and on emergence and growth of Melia azedarach seeding were studied. Besides, we valuated the nursery effect of different container substrate by factor analysis method. Photosynthetic rate and transpiration rate were significant lower in T3 (Vpeat:Vpearlite=1:1) and T5(Vpeat:Vvermiculite= 2:1). However, photosynthetic rate and transpiration rate were highest in T4 (Vpeat:Vvermiculite= 3:1) of all the treatments. Melia azedarach emergence rate of T1 (Vpeat:Vpearlite=3:1) and T2 (Vpeat:Vpearlite=2:1) was significant higher than other treatments being 97.9%. However, Melia azedarach emergence rate of T3, T5 and T7 (Vpeat:Vvermiculite:Vpearlite=6:1:1) was significant lower being 88.7%、85.4% and 85.4%, respectively. Seedling height, and ground diameter of Melia azedarach in T2, T6 (Vpeat:Vvermiculite=1:1) and T7 were higher than other treatments. While in T5, seedling height, and ground diameter were lowest. Biomass of Melia azedarach in T6 was highest in all of the treatments, while in T3 and T5, it was lowest. Index of Melia azedarach growth and emergence in different treatments were not coincident. Factor analysis method was suitable for valuation on the nursery effect. Factor analysis about emergence, seedling height, ground diameter and biomass of Melia azedarach were made in this article. Result showed that T6 was the best compound substrate for Melia azedarach cultivation, next came T7 and T4, while T3 was the worst in all the treatments.