摘要
为了探明干旱胁迫下甘薯的生理变化特性,采用盆栽水分胁迫的方法对2种耐旱特性不同的甘薯品种进行研究。结果表明:持续干旱胁迫下,2种甘薯材料叶片相对含水量(RWC)不断降低,叶绿素降解且含量持续减少,而丙二醛(MDA)和脯氨酸含量不断上升,超氧化物歧化酶(SOD)表现为先增加后减少趋势。
Two sweet potato varieties with different responses to drought condition,were used as experimental materials to study the physiological characteristics of sweet potato under drought stress.The results showed that the relative water content of leaves（RWC） decreased along with the time of drought stress,and it was also true for chlorophyll.The contents of malondialdehyde（MDA） and proline both continued to increase.The activities of superoxide dismutase（SOD） increased first and then decreased.
出处
《贵州农业科学》
CAS
北大核心
2013年第6期52-54,58,共4页
Guizhou Agricultural Sciences
基金
贵州省科技创新能力建设专项"贵州薯类育种及产业化研发平台建设"[黔科合院所创能(2010)4006]
关键词
干旱胁迫
甘薯
生理特性
drought stress
sweet potato
physiological characteristics
