%0 Journal Article
%T Physiological and ecological effects of potassium on expansion of crocus corm<br>钾对番红花球茎膨大的生理生态效应
%A LIU Yun
%A LONG Yun
%A ZHU Liquan
%A CAO Guoxing
%A ZHONG Zhangcheng
%A <br>刘芸
%A 龙云
%A 朱利泉
%A 操国兴
%A 钟章成
%J 应用生态学报
%D 2004
%I 
%X The corm size of Crocus sativus, a well-known medicine, is a key limiting factor for its stigma harvest. A water cultural experiment with four different potassium (K) concentrations showed that the K content, chlorophyll content, relative ATP content and net photosynthetic rate in C. sativus leaves increased with improving K concentration, which enhanced the function of leaves to be metabolic source. On the other hand, the K absorbing ability and the contents of soluble sugars, vitamin C (Vc) and protein in new-born corms were increased with improving K concentration, which also strengthened the function of new-born corms to be metabolic sink. This study also showed that K could promote the new-born corm growth rate of C. sativus through strengthening the function of "source" and "sink".
%K Crocus sativus
%K Potassium
%K Expansion of corms
%K Physiological and ecological effects<br>番红花
%K 钾
%K 球茎膨大
%K 生理生态效应
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=4D0F9D88109C6334&yid=D0E58B75BFD8E51C&vid=23CCDDCD68FFCC2F&iid=E158A972A605785F&sid=46FF101E7ECF9F15&eid=1C3BB0F444F5E427&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=2&reference_num=33