黄腐酸对欧美杨光合及蒸腾速率的影响  

Influence of FA on Photosynthesis and Transpiration Rate of Populus euramericana

作　　者：武应霞[1] 何威[2] 林春阳 冯建灿[1] 栗有枝[1] 

机构地区：[1]河南农业大学林学园艺学院,郑州450002 [2]河南省林业科学研究院,郑州450008 [3]郑州市市政工程勘测设计研究院,郑州450052

出　　处：《中国农学通报》2008年第10期171-174,共4页Chinese Agricultural Science Bulletin

基　　金：国家林业局948项目资助"抗蒸腾剂生产与应用技术引进"(2004-4-47)

摘　　要：抗蒸腾剂是减少水分损失的一种新型的抗旱化技术,为了解其对欧美杨的影响,以1年生苗木为研究对象,通过喷施不同浓度的黄腐酸处理,结果表明,质量浓度为3.5g/L的处理效果最好,其气孔导度和蒸腾速率分别比对照降低了42.0%和38.8%;对光合作用有促进作用;对欧美杨的叶水势提高幅度为13.8%,能显著抑制叶水势的下降。Antitranspirant is a new technology reducing water loss. The author object is to study the effects of FA on photosynthesis and transpiration rate of Populus Euramericana. Different concentration FA treatment on one-year-old seedlings was carried out. The result showed the effect of FA of 3.5g/L is the best, which reduced stomatal conductance and transpiration rate by 42.0% and 38.8% respectively; FA could promote photosynthetic rate; the leaf water potential was improved by 13.8%, it had an obvious prohibiting effect on the decrease of leaf water potential.

关 键 词：欧美杨 黄腐酸 气孔导度 蒸腾速率 光合速率 叶水势 

分 类 号：S687.1[农业科学—观赏园艺]