超绿水稻品种(系)‘沈农19-6’根系的生长和生理特性初探  

Preliminary Study on Growth and Physiological Characteristics of Super-Green Rice Root

作　　者：隋阳辉[1] 赵明辉[1] 阚学飞[1] 徐海[1] 陈温福[1] 

机构地区：[1]沈阳农业大学水稻研究所,省部共建北方粳稻遗传育种重点实验室,农业部作物生理生态遗传育种重点开放实验室,沈阳110866

出　　处：《植物生理学通讯》2010年第5期431-434,共4页Plant Physiology Communications

基　　金：公益性行业(农业)科研专项经费项目(nyhyzx07-001);辽宁省科学技术计划重大项目(2008201002);国家"十一五"科技支撑计划(2006BAD01A01-6)

摘　　要：采用盆栽方法,研究不同生育时期超绿水稻品种(系)‘沈农19-6’根系的生长和生理特性。结果表明,生育后期品种(系)‘沈农19-6’的最大根长、根体积、根干重和根冠比显著或极显著大于‘沈农07-015’和‘丰锦’;根系氧化能力(α-萘胺氧化量)和根系还原能力均高于‘沈农07-015’和‘丰锦’。上述指标在整个生育期内的变化趋势与‘沈农07-015’和‘丰锦’基本上一致,但在生育后期其根系衰老速度缓慢,根系活力高。Root morphology and physiology characters in different growth stages of super-green rice ＇Shennong 19-6＇ were studied by using the method of potted planting.The results showed that root max-length,root volume,root dry weight and root/shoot ratio were significantly higher in super-green rice ＇Shennong 19-6＇ than in ＇Shennong 07-015＇ and ＇Fengjin＇,especially at late growth stage.Both oxidative and reductive activity of root were higher in ＇Shennong 19-6＇ than in ＇Shennong 07-015＇ and ＇Fengjin＇ at late growth stage.These root physiological parameters had similar trends in ＇Shennong 19-6＇,＇Shennong 07-015＇ and ＇Fengjin＇.However,the super-green rice ＇Shennong 19-6＇ had slower root aging speed and higher root vigor than in ＇Shennong 07-015＇ and ＇Fengjin＇ at later period of growth.

关 键 词：超绿水稻 根系形态 根系活力 

分 类 号：S511.22[农业科学—作物学]