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不同基质对千年桐容器苗光合生理特征的影响

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于2019-2020年,在福建省南平市建阳区国营苗圃,采用9种基质配方,探讨不同基质对千年桐容器幼苗光合生理特性的影响.结果显示,千年桐苗木在P5(泥炭50%+黄心土25%+谷壳25%)基质培育的容器苗的净光合速率、蒸腾速率、水分利用效率均最高,P3(泥炭30%+黄心土 50%+谷壳20%)基质培育的千年桐容器苗的气孔导度最大且显著高于CK(黄心土基质),P4(泥炭60%+黄心土 20%+谷壳20%)基质培育的千年桐容器苗的胞间二氧化碳浓度和Fv/Fm最高.综合各指标特征来看,以泥炭50%+黄心土 25%+谷壳25%以及泥炭60%+黄心土 20%+谷壳20%这2种基质配方最有利于提高千年桐的光合能力.本研究结果可为千年桐容器育苗生产应用提供参考.
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.

Aleurites montanacontainer seedlingsubstrate formulaphotosynthetic physiology

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福建省南平市建阳区林业局,福建南平 354200

千年桐 容器苗 基质配方 光合生理

2024

福建林业科技
福建省林学会,福建省林业科学研究院

福建林业科技

影响因子:0.528
ISSN:1002-7351
年,卷(期):2024.51(2)