期刊论文

Repair regulation of exogenous Spd on physiological function of Toona ciliata seedlings under drought stress with different levels

中文

中南林业科技大学学报

1673-923X

2017

37

7

66-72

10.14067/j.cnki.1673-923x.2017.07.010

国家林业公益性行业科研专项

本校为第一机构

本研究旨在探讨持续干旱胁迫下外源亚精胺对红椿幼苗生理功能的修复调节效应。以2年生红椿家系盆栽幼苗为试验对象,采取持续干旱和土壤水分测定相结合的方法,在人工遮雨棚中开展干旱胁迫及外源亚精胺调节试验,包括4个处理,即对照处理(土壤相对含水率45% ~ 50%)、轻度干旱胁迫及调节(土壤相对含水率30% ~ 38% +1 mmol/L外源Spd调节)、中度干旱胁迫及调节(土壤相对含水率25% ~ 30% +1 mmol/L外源Spd调节)和重度干旱胁迫及调节(土壤相对含水率20% ~ 25% +1 mmol/L外源Spd调节)。结果表明:(1)在对照、干旱胁迫(轻度、中度和重度)以及喷施外源Spd调节三者之间,红椿幼苗叶片相对电导率、叶绿素含量、相...

The study was carried out to find out the repair regulation effects of exogenous Spd on physiological function of Toona ciliata family seedlings under drought stress. 2a potted seedlings of Toona cilliate adoppted as experimental materials, the drought stress and exogenous Spd regulation experiment was carried out in the artificial-rain-shelter by combining persistent drought stress with soil moisture measurement. The experiment contained 4 treatments as CK （Relative Soil Water Content 45%-50%）, mild drought stress and regulation （Relative S...