摘要
以适应山地栽培抗旱性较强的东刘１号和适应河边栽培抗旱性较弱的陈紫２年生盆栽实生荔枝幼苗为试验材料，研究了水分胁迫对荔枝（ＬｉｔｃｈｉｃｈｉｎｅｎｉｓＳｏｎｎ．）叶片内源激素含量的影响。结果表明：水分胁迫下，荔枝叶片ＡＢＡ含量上升，ＩＡＡ和ＧＡ１＋３。含量下降；抗旱性强的品种ＡＢＡ含量上升的幅度，ＩＡＡ和ＧＡ１＋３。含量下降的幅度均大于抗旱性弱的品种。ＺＲ含量的变化与品种的抗旱性有关，抗旱性弱的品种叶片ＺＲ含量上升，抗旱性强的品种叶片ＺＲ含量下降。
The 2-year-old seedlings of two litchi varieties (Litchi chinensis Sonn.), one grow-ing on the river side (considered drought-sensitive) and the other on the hill (drought-resis-tant) were used to observe the effect of water stress on endogenous hormone content in litchileaves. Under water stress the content of ABA in litchi leaves increased in both varietiesbut more in the drought resistant vanety, and the content of IAA and GA1+3 in litchi leavesdecreased in both varieties but mure rapidly in the drought-resistant variety. The ZR contentin the litchi leaves, however, declined in drought-resistant variety but increased in thedrought-sensitive one.
出处
《热带作物学报》
CSCD
1999年第3期31-35,共5页
Chinese Journal of Tropical Crops
基金
福建省自然科学基金!F991
关键词
荔枝
水分胁迫
内源激素
抗旱性
栽培
litchi
water stress
endogenous hormone
drought resistance
