电场对白沙蒿和沙蒿瘦果粘液粘附功能的影响  

Responses of the conglutination function of achene mucilage in Artemisia sphaerocephala and Artemisia arenaria to electric field

作　　者：那日[1] 杨生[2] 黄洪云[1] 

机构地区：[1]内蒙古大学理工学院物理系,内蒙古呼和浩特010021 [2]中国农业科学院草原研究所,内蒙古呼和浩特010010

出　　处：《干旱地区农业研究》2005年第5期132-137,共6页Agricultural Research in the Arid Areas

基　　金：国家自然科学基金(50267001)资助项目

摘　　要：用不同强度的电场处理沙生植物白沙蒿(Artemisiasphaerocephala)和沙蒿(Artemisiaarenaria)果实,在自然环境下研究电场作用后粘液物质将沙粒粘附于瘦果周围后瘦果重量的变化情况、果实水合与脱水情况、粘液果实及剔除粘液层的果实萌发情况。结果表明:适宜的电场使粘液瘦果吸附沙粒多,果实吸水快,脱水慢,粘液果实发芽率高于对照组,而电场对剔除粘液层果实发芽率无影响。Under natural environmental condition, the achenes of Arternisia sphaerocephala and Artemisia arenaria were treated with different electric intensity, to probe the variation of achene weight when the mucilaginous layer holds sand particles, the hydration and dehydration of the achenes, and the germination situation of mucilage-intact achenes and mucilage-free achenes. The results showed that electric field treatment made the mucilaginous achenes hold more sand particles than CK, water absorption of the achenes became fast and dehydration of the achenes became slow, the electric field treatment increased the germination percentage of mucilage-intact achenes, but didn＇t affect the germination of mucilage-free achenes.

关 键 词：白沙蒿 沙蒿 电场处理 瘦果 粘液 水合与脱水 发芽率 

分 类 号：S58[农业科学—作物学]