铝磷对普通油茶根系形态和活力及物质分配的影响  

Effects of aluminum and phosphate on material distribution and roots characteristics and activity of Camellia oleifera seedlings

作　　者：谭晓风[1,2] 袁军[1,2] 李泽[1,2] 叶思诚[1,2] 姜志娜[1,2] 

机构地区：[1]中南林业科技大学经济林育种与栽培国家林业局重点实验室,湖南长沙410004 [2]北京林业大学,北京100083

出　　处：《中南林业科技大学学报》2011年第12期108-110,共3页Journal of Central South University of Forestry & Technology

基　　金：国家"十一五"科技支撑计划项目[2009BADB1B02]

摘　　要：以普通油茶幼苗为试材,研究铝(AlCl3)和磷(KH2PO4)对油茶幼苗物质分配和根系形态及根系活力的影响。结果表明,适宜浓度的铝对油茶幼苗地上部分的干鲜重、苗高、地径、侧根长、侧根数和根系干、鲜重以及根系活力等指标有一定的促进作用,能降低根冠比;磷可以增加油茶幼苗根系干鲜重、苗高、根冠比以及根系活力。该研究说明油茶对低磷和高铝具有一定的耐受性,适宜浓度的铝磷对油茶生长具有促进作用。Effects of aluminum and phosphate on material distribution and roots activity of Camellia Oleifera seedlings were studied by taking Camellia oleifera seedlings as testing material.The results show that the aluminum（AlCl3） increased aerial part’s dry and fresh weight,plant height,lateral root length,lateral root number,root dry weight and fresh root activity,and inhibited the main root and root/shoot ratio.Phosphates（KH2PO4） increased root’s dry and fresh weight,plant height,root-shoot ratio and root activity.The results suggest that the suitable concentration of aluminum and phosphate can improve oil tea’s growth.

关 键 词：油茶 根系形态 根系活力 物质分配 铝磷 

分 类 号：S794.4[农业科学—林木遗传育种] S718.55[农业科学—林学]