草莓属植物匍匐茎性状调查研究

对草莓属植物13个种共34份试材的匍匐茎性状进行了较系统的调查和分类研究.根据匍匐茎幼苗着生方式可分为以下2类:第一类为除第一节外每节都着生幼苗,第二类为仅偶数节着生幼苗.根据匍匐茎是否抽生二次分枝可分为以下2类:第一类为抽生二次分枝,第二类为不抽生二次分枝.根据匍匐茎的绒毛着生方式可分为以下3类:第一类为匍匐茎上被极稀直立绒毛,第二类为匍匐茎上被密集直立绒毛,第三类为匍匐茎上被极稀紧贴绒毛.根据匍匐茎颜色可分为红色、浅红色、绿色3类.匍匐茎幼苗着生方式、绒毛着生方式是草莓种分类的重要性状.

Study on the Runner Characters of Fragaria Species

The runner characters of thirty four accessions involved in thirteen strawberry species were researched and classified in this paper.There were two types according to the state of plantlets formed on the runners: plantlets formed on every node except for the first one and plantlets formed only on even nodes;two types according to the branch of runner: with or without;three types according to the state of hairs formed on the runners: extremely rare spreading hairs,thick spreading hairs and extremely rare appressed hairs;and three types according to the colors of the runners: red,light red and green.The state of plantlets and hairs formed on the runners were important classificatory characters among Fragaria species.