期刊论文

Li, Z.-H.

中文

生态学杂志

1000-4890

2014

33

4

996-1003

10.13292/j.1000-4890.2014.0101

“十二五”国家科技支撑项目（2012BAD21B03）资助；

本校为第一且通讯机构

以浙江庆元、湖南洞口和湖南靖县3个地理种源的赤皮青冈(Cyclobalanopsis gilva)1年生幼苗为试验材料,采用盆栽称重法控制土壤水分含量,研究了不同程度干旱胁迫对赤皮青冈幼苗生长、生物量分配、叶片自由水和束缚水含量、根系活力和叶片内源激素含量的影响,旨在揭示赤皮青冈幼苗对干旱胁迫的适应机制。结果表明: 随着干旱程度的增强,3个种源赤皮青冈幼苗的株高生长量和地径生长量呈下降的趋势; 幼苗地上部分和根部生物量增量呈下降的趋势; 叶片自由水/束缚水比值降低,束缚水含量升高,而自由水含量的变化趋势不一致; 干旱胁迫提高了湖南洞口和湖南靖县种源赤皮青冈的根系活力,但浙江庆元赤皮青冈...

Using a pot culture experiment, the response of one-year-old seedlings of Cyclobalanopsis gilva from three provenances to drought stress was assessed to understand the adaptation mechanisms of C. gilva to drought stress. The seedlings originating from Qingyuan of Zhejiang Province, and Dongkou and Jingxian of Hunan Province were observed for their growth and physiological properties in this experiment. The growth, biomass production and allocation, free water and bound water and endogenous hormone contents of leaves, and root vitality of the seedlings were measured. The results showed that as ...