Seed Germination and Physiological Characteristics of Amaranthus mangostanus L. under Drought Stress

被引：5
|
作者：
Sun, Yongdong [1 ]
Du, Xiaohua [1 ]
Zhang, Wenjie [1 ]
Sun, Li [1 ]
Li, Ran [1 ]
机构：
[1] Henan Inst Sci & Technol, Sch Hort & Landscape Architecture, Xinxiang 453003, Peoples R China
来源：
ENVIRONMENTAL BIOTECHNOLOGY AND MATERIALS ENGINEERING, PTS 1-3 | 2011年 / 183-185卷
关键词：
drought stress; seed germination; physiological characteristics; Amaranthus mangostanus L; SALINITY; GENOTYPES;
D O I：
10.4028/www.scientific.net/AMR.183-185.1071
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
Effects of drought stress on the seed germination and physiological characteristics of amaranth were investigated. The results were as follows: the germination rate and germination potential of amaranth decreased with the increasing of PEG-6000 concentrations. Meanwhile, the root length, shoot length and peroxidase (POD) activity were significantly increased at lower PEG-6000 concentrations, but then decreased with the increasing of PEG-6000. Malondialdehyde (MDA) content, proline content and superoxide dismutase (SOD) activity were all significantly increased under drought stress, and reached the top at 20% PEG-6000. These findings indicated that amaranth tolerates drought stress through increasing the activities of SOD and POD and accumulating proline content.
引用
收藏
页码：1071 / 1074
页数：4
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