海滨型野生假俭草的盐胁迫效应研究  

Effects of Salt Stress on Wild Seashore Centipedegrass

作　　者：陈平[1] 席嘉宾[2] 张建国 谢志亮[1] 石秀兰[1] 

机构地区：[1]仲恺农业技术学院农业与园林学院,广东广州510225 [2]中山大学生命科学学院,广东广州510275 [3]珠海市香洲区吉大园林管理所,广东珠海519015

出　　处：《中山大学学报（自然科学版）》2006年第5期85-87,92,共4页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：广东省科技攻关资助项目(2005B20901018);广州市科技攻关重点资助项目(2005Z2-E0201);广东省良种引进资助项目(粤财农[2004]295号);珠海市科技攻关资助项目(ZK[2005]-42和PC200501004)

摘　　要：应用盆栽试验,对不同质量分数盐胁迫下海滨型野生假俭草的盐胁迫效应进行初步研究,结果表明,与对照品种相比,海滨野生假俭草植株叶片和根系中都维持低而稳定的[Na+]/[K+]比值,盐胁迫下植株内的Na+、K+质量分数显著高于对照。盐胁迫下植株叶片中的叶绿素质量分数也较高,同时还具有质膜相对透性低,生物量高等特点,表现出较好的耐盐性能,具有较好的开发利用前景。Centipedgrass from seashore and green-grass in campus were cultured in pot under salt stress （salt conc. 0%, 0. 25%, 0. 5%, 0. 75%, 1.0%, 1.25% ） and the effects of salt stress were studied. The results showed that the leaves and roots in seashore wild centipedegrass under salt stress maintained stable [ Na^＋ ]/[ K^＋ ] value, had high Na^＋ , K^＋ content and biomass than that of control. And it has higher chlorophyll content and low relative membrane permeability in leaves. This may be related with seashore wild centipedegrass having stronger salt tolerance. And has better foreground of exploiting and using.

关 键 词：野生假俭草 盐胁迫效应 耐盐性 

分 类 号：S668.4[农业科学—果树学]