当前位置: 首页 > 文章 > 胁迫环境下海滨木槿生理特性的研究 浙江林业科技 2008,28 (3) 43-47
Position: Home > Articles > Study on the Physiological Characteristics of Hibiscus hamabo under Stress Journal of Zhejiang Forestry Science and Technology 2008,28 (3) 43-47

胁迫环境下海滨木槿生理特性的研究

作  者:
杨华;杜国坚;汪奎宏
单  位:
浙江省林业科学研究院
关键词:
海滨木槿;盐碱胁迫;水胁迫;生理特性;光合作用
摘  要:
研究了在设定盐碱环境情况下水淹高度和时间梯度处理对海滨木槿生理指标的变化,结果表明,高盐碱环境是伤害海滨木槿的主要影响因素,海滨木槿缺乏相应的器官或生理机制适应高盐碱和水涝的共同胁迫,植株处于生理干旱的状态,叶、茎、皮含水量减少,净光合速率、气孔导度、蒸腾速率、水分利用效率、光化学效率降低,生长势减弱;随着胁迫时间的延长,各生理指标中,叶绿素a、叶绿素b、类胡萝卜素的含量表现为不断减少,而相对电导率、伤害率、脯氨酸含量、丙二醛含量则表现为不断增加。
译  名:
Study on the Physiological Characteristics of Hibiscus hamabo under Stress
作  者:
YANG Hua,DU Guo-jian,WANG Kui-hong(Zhejiang Forestry Academy,Hangzhou 310023,China)
关键词:
Hibiscus hamabo;saline stress;water stress;physiological characteristic;photosynthesis
摘  要:
Study on effect of treatment of different water immersion height and duration on physiological characteristics change of Hibiscus hamabo under saline and alkali stress showed that the main factor damaged to H.hamabo was high salt stress,and it was not adapted to high saline and alkali and water stress for lacking relevant organs and physiological mechanism,and the plant were at physiological drought condition.Water content of leaf,stem and bark,net photosynthetic rate,stomatal conductance,transpiration rate,water use efficency and photochemical efficiency decreased.With the duration of stress,the contents of chlorophyll a,chlorophyll b and carotenoid declined,while relative conductivity,damage rate,contents of proline and malondialdehyde increased.

相似文章

计量
文章访问数: 11
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊