Exogenous Applications of Abscisic Acid Increase Freeze Tolerance in Citrus Trees

被引：6
|
作者：
Melgoza, Francisco J. [1 ]
Kusakabe, Ayako [1 ]
Nelson, Shad D. [1 ]
Melgar, Juan Carlos [1 ]
机构：
[1] Texas A&M Univ Kingsville, Citrus Ctr, Weslaco, TX 78596 USA
来源：
INTERNATIONAL JOURNAL OF FRUIT SCIENCE | 2014年 / 14卷 / 04期
关键词：
plant growth regulators; abscisic acid; foliar; soil; abiotic stress; cold stress;
D O I：
10.1080/15538362.2014.899138
中图分类号：
S6 [园艺];
学科分类号：
0902 ;
摘要：
The exogenous application of the plant hormone abscisic acid (ABA) may provide a new approach for preventing freeze damage to fruit tree crops. Exogenous ABA (1 mM) was foliarly applied to citrus trees under different irrigation regimes: well-irrigated trees or drought-stressed trees. Foliar applications of ABA increased the endogenous leaf ABA concentrations, and drought-stressed trees sprayed with ABA had a greater freeze tolerance than well-irrigated trees and drought-stressed trees that did not receive ABA. On the contrary, soil applications (zero, 1 nM ABA, 1 mu M ABA, 1 mM ABA) did not increase the leaf ABA concentration and freeze tolerance.
引用
收藏
页码：376 / 387
页数：12
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