GGR6号和“施丰乐”溶液浸根对银杏生长、光合特性及水分利用效率的影响  

Influence of phytohormone “Shifengle” and GGR6 on the growth, photosynthetic characteristics and water use efficiency in seedlings of Ginkgo biloba.

作　　者：何茜[1] 李吉跃[1] 齐涛[2] 

机构地区：[1]北京林业大学资源与环境学院省部共建森林培育与保护教育部重点实验室 [2]四川省林业厅种苗站

出　　处：《北京林业大学学报》2006年第S1期55-59,共5页Journal of Beijing Forestry University

基　　金："863"国家高新技术项目(2002AA2Z4281);北京林业大学省部共建森林培育与保护教育部重点实验室"北京城市绿地水分经济生态的研究"项目(JD100220535).

摘　　要：为探索植物生长调节剂对银杏幼苗生长、光合特性、水分利用效率及生物量分配的影响,在移栽前分别用10mg/L的GGR6号和“施丰乐”溶液进行浸根处理,研究幼苗的生长、光合特性、生物量各指标.结果表明:两种处理都能有效增加银杏幼苗的光合能力(净光合速率较对照高18.10%~26.52%),提高水分利用效率(较对照高2.69%~10.85%),促进生物量积累(较对照高23.62%~175.97%),其中“施丰乐”的作用大于GGR6号,这对干旱地区提高苗木成活率和增强抗旱性有重要的意义.To study the effects of growth, photosynthetic characteristics, water use efficiency and biomass allocation on Ginkgo biloba, seedlings were dipped into GGR6 and “Shifengle” solution(10 mg L), and then transplanted in field. The indices about growth increment, photosynthetic characteristics and biomass were studied. Two treatments on seedlings were contributed to improve net photosynthetic capacity((18.10%-26.52%) was greater than the comparison on photosynthetic rate), increase water use efficiency(2.69%-1...

关 键 词：银杏 “施丰乐” GGR6 光合特性 水分利用效率 叶绿素含量 生物量分配 

分 类 号：S792.95[农业科学—林木遗传育种]