摘要
以楝叶吴萸Evodia glabrifolia为材料进行植物生长调节剂的根部灌溉处理,探讨了50、100、150 mg/L共3个浓度梯度的萘乙酸(NAA)、吲哚乙酸(IAA)和ABT-3号生根粉(ABT-3)对楝叶吴萸幼苗叶绿素荧光(PSⅡ实际量子产量Y(Ⅱ)、相对电子传递效率ETR、非光化学淬灭系数NPQ)、根系活力、根系形态指标(根系长度、根系表面积、根系体积、根系平均直径)的影响。试验结果表明:3种植物生长调节剂在适宜浓度处理下均能够促进楝叶吴萸的实际光能转换效率和根系活力,其中50 mg/L的IAA是最佳的处理,能够显著增进楝叶吴萸的根系生长,尤其是对根系还原强度有着较好的促进作用,并能够增强楝叶吴萸对光能的利用能力和光保护能力,促进植株的生长发育。
With Evodia glabrifolia as the materialc to the root of plant growth regulator irrigation treatment,discussing the three concentration(50, 100, 150 mg/L) of 1-naphthylacetic acid(NAA),indole-3-acetic acid(IAA) and ABT-3 root powder(ABT-3) of the seedlings of E. glabrifolia's chlorophyll fluorescence(PSⅡ actual quantum yield Y (Ⅱ)、the relative electron transfer efficiency ETR、 non-photochemical quenching coefficient NPQ)、root vigor、index of root morphology(root length、root surface area、the root volume、root average diameter), in order to provide reference for the reasonable cultivation of E. glabrifolia. Three kinds of plant growth regulator in the appropriate concentration treatment were able to promote the actual light energy conversion efficiency and root activity of E. glabrifolia, 50 mg/L of IAA was the best treatment who can significantly increase the root growth of E. glabrifolia, especially in root reduction intensity, and can promote the E. glabrifolia light utilization ability and light protection ability, thus promote the overall growth and development of plants.
作者
刘小玲
张亨
陈文
陈红跃
LIU Xiaoling;ZHANG Heng;CHEN Wen;CHEN Hongyue(South China Agricultural University,Guangzhou,Guangdong 510642,China;Pubang Landscape Architecture Co.,Ltd,Guangzhou, Guangdong 510600,China)
出处
《林业与环境科学》
2019年第4期71-78,共8页
Forestry and Environmental Science
基金
中山市科技基金资助项目(4400-H13527)
关键词
楝叶吴萸
植物生长调节剂
叶绿素荧光
根系活力
根系形态
Evodia glabrifolia
plant growth regulator
chlorophyll fluorescence
root activity root morphology
