淹水胁迫对白骨壤种子萌发及幼苗生长的影响研究  

Research on the water logging stress impact on Avicennia Marina seed germination and its seedling growth

作　　者：张影[1] Zhang Ying(Hainan Dongzhaigang National Nature Reserve Authority,Haikou Hainan 571129)

机构地区：[1]海南东寨港国家级自然保护区管理局,海南海口571129

出　　处：《热带林业》2018年第1期35-38,共4页Tropical Forestry

摘　　要：该试验以淹水时间分别为0.1h/d(CK)、1h/d(D4)、2h/d(D3)、4h/d(D2)、6h/d(D1)5个处理梯度对白骨壤种子萌发和幼苗生长的影响。90d后对白骨壤进行萌发率、株高、叶片数、叶面积指数、根长、生物量及根冠比等指标测定。结果表明:淹水时间为4h/d、6h/d时白骨壤的种子发芽率、幼苗的株高、叶片数、叶面积指数及总生物量均高于0.1h/d、1h/d、2h/d淹水时间处理,而淹水时间为2h/d根冠比较高。This experiment mainly research on the water logging stress,which the time level of water logging were 0.1h/d/(CK),1h/d(D4),2h/d(D3),4 h/d(D2),6h/d(D1)respectively,impact on Avicennia marina seed germination and its seedling growth.The germination rate,plant height,leaf number,leaf area index,root length,biomass and root cap ratio of Avicennia marina seedling after 90 days experiment period were measured.The result obtained that the germination rate,height,the number of leaf,leaf area index and total biomass in both of 4h/d and 6h/d water logging levels were higher than other water logging levels and the time level of 2h/d water logging had the highest root cap ratio of Avicennia marina seedling.

关 键 词：淹水胁迫 白骨壤 种子萌发 幼苗生长 

分 类 号：S712[农业科学—林学]