期刊论文

Xiong, X.-Y.

中文

草业学报

1004-5759

2016

25

8

81-90

10.11686/cyxb2015563

湖南省教育厅课题

本校为第一且通讯机构

以两个耐热性差异较大的多年生黑麦草品种首相(Premier,耐热性强)和顶峰(Pinnacle,耐热性弱)为试验材料,分析了人工模拟昼夜温度为适温(25 ℃/20 ℃)和高温(35 ℃/30 ℃)两种温度条件下,高温胁迫对黑麦草生长、叶片细胞膜稳定性、叶绿素含量、光合作用、内源激素(ABA、IAA,GA_3和ZR)以及碳水化合物(可溶性糖、淀粉、果聚糖)代谢的影响。结果表明,高温胁迫条件下黑麦草生长减缓,叶片电导率升高,叶绿素含量和光合作用显著下降,内源激素脱落酸(ABA)含量升高,而生长素(IAA)、赤霉素(GA_3)和细胞分裂素(ZR)含量均下降,但是在耐热性强的品种中的变化程度均小于耐热性弱的品种;高温胁迫下碳水化合物中的...

In order to investigate the effects of high temperatures on growth, leaf membrane stability, chlorophyll content, photosynthesis, endogenous hormones and carbohydrate metabolism, two perennial ryegrass (Lolium perenne) cultivars with contrasting heat tolerance, 'Premier' (tolerant) and 'Pinnacle' (sensitive) were selected and treated under optimum (25℃/20℃) and high (35℃/30℃) temperatures in growth chambers for 21 days. The results demonstrated that leaf electrolyte leakage and abscisic acid (ABA) content increased while plant growth, chlor...