Effects of Different Substrate Formula on the Photosynthetic Characteristics of Aleurites montana Container Seedlings
In the paper,9 different substrate formula for Aleurites montana container seedlings were compared in State-owned Nurs-ery of Jianyang,Nanping during the years of 2019 and 2020,in order to examine the effects of different substrate formula on the pho-tosynthesis efficiency of Aleurites montana seedlings.The results showed that in P5 substrate treatment(50%peat+25%yellow soil+25%hull),net photosynthetic rate,transpiration rate,and water utilization efficiency of Aleurites montana seedlings reached the highest.In P3 treatment(30%peat+50%yellow soil+20%hull),the stomatal conductance of seedlings was the highest and significantly higher than CK.P4 treatment(60%peat+20%yellow soil+20%hull)witnessed the peaks in intercellular carbon dioxide concentration and Fv/Fm.According to the comprehensive characteristics,the two kinds of substrate formula of 50%peat+25%yellow soil+25%hull and 60%peat+20%yellow soil+20%hull were the most beneficial to improving the photosyn-thetic capacity of Aleurites montana container seedlings.This studycan provide relevant data and theoretical reference for the culti-vation technology optimization in the application of Aleurites montana container seedling production.