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

页码：376 / 387

页数：12

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