2种不同叶型屏边三七生理指标比较研究  

Physiological Indexes Comparison of 2 Kinds of Leaf Panax stipuleanatus

作　　者：黄杏娥[1] 和加卫[1] 段承俐[2] 苏泽春[1] 

机构地区：[1]云南省农业科学院高山经济植物研究所,云南丽江674100 [2]浙江农林大学林业与生物技术学院,浙江临安311300

出　　处：《中国农学通报》2015年第1期146-149,共4页Chinese Agricultural Science Bulletin

摘　　要：为了研究屏边三七群体的亲缘关系远近,采用常规徒手切片法、分光光度法、蒽酮法、考马斯亮蓝G-250法、光合测定仪测定法对2种不同叶型屏边三七的生理指标进行比较研究。结果表明:全缘型叶片中的可溶性糖含量明显低于锯齿型叶片,二者之间的差异达到显著水平。全缘型叶片中的淀粉含量略高于锯齿型叶片,而可溶性蛋白质的含量又略低于锯齿型叶片,但这两者之间的差异均不显著。锯齿型屏边三七的净光合速率、气孔导度、胞间CO2浓度、蒸腾速率均不同程度地高于全缘型,而全缘型屏边三七的叶面饱和水汽压亏缺和水分利用率则高于锯齿型。In order to study genetic relationship of Panax stipuleanatus H. T. Tsai et K. M. Feng groups, the author compared physiological indexes of 2 kinds of leaf Panax stipuleanatus by using conventional free hand section method, spectrophotometry, anthrone method, coomassie brilliant blue G- 250 and photosynthesis determinator method. The results showed that the content of soluble sugar in the leaves of full-leaf type was significantly lower than the crenellated type, the full-leaf and crenellated type reached significant level. The starch content in leaves of the full-leaf was slightly higher than crenellated, soluble protein content slightly lower than the crenellated. Differences in the contents of starch and soluble protein were not significant. Thecrenellated was higher than full-leaf in net photosynthesis rate（Pn）, stomatal conductance（Gs）, intercellularCO2 concentration（Ci） and transpiration rate（Tr）. Full- leaf was higher than crenellated in vapor pressure deficit on leaf surface（Vpd L） and water use efficiency（WUE）.

关 键 词：屏边三七 生理指标 亲缘关系 

分 类 号：S567.236[农业科学—中草药栽培]