山药干物质积累与分配规律研究  

Research on the Accumulation and Distribution Rule of Dry Matter in Chinese Yam

作　　者：王家顺[1] 张红霞[1] 龙菊[1] 李志友[1] Wang Oiashun Zhang Hongxia Long Ou Li Zhiyou(,2,3,4. College of Agriculture, Anshun University, Anshun561000, Guizhou, China)

机构地区：[1]安顺学院农学院,贵州安顺561000

出　　处：《安顺学院学报》2017年第3期133-135,共3页Journal of Anshun University

基　　金：贵州省教育厅自然科学研究项目"山药产量和品质形成及栽培调控研究"(黔教科合KY字[2013]178号);贵州省科学技术厅;安顺市人民政府;安顺学院联合科技基金项目"安顺山药有效成分与土壤生态因子关系研究"(黔科合J字LKA[2013]06号);"共生真菌对黔中地区薯蓣品质的影响"(黔科合J字LKA[2012]05号)的阶段性成果

摘　　要：采用田间试验对山药干物质积累与分配规律进行研究。结果表明:山药总干物质积累呈现慢—快—慢的变化趋势,在整个生长过程中山药蔓干物质变化不大,叶片干物质积累集中在出苗后80-100d,在出苗后120-140d块茎干物质积累速度最快,出苗140d干物质分配主要以叶片和蔓,出苗140d后,干物质的分配以山药块茎为主。山药采收时间不宜过早,在山药生长各时期采取合理栽培管理措施有利于提高山药块茎的产量。The rule of dry matter accumulation and distribution were studied during the growth of Chinese Yam in field. The results showed that the dry matter accumulation of Yam showed a slow-fast-slow trend. During the whole growth process, the change of dry matter accumulation of the vine in Chinese Yam was slow, and the dry matter accumulation of the leaves was concentrated at 80-100d after gmergence, and the fastest dry matter accumu- lation of tubers appeared in the 120-140d after emergence. The dry matter distribution of Chinese yam after the e- mergence was mainly lea{ and vine before 140d, and was the tubers after 140d. The harvest time of Chinese yam should not be too early, and the reasonable cultivation management measures in every period of its growth was beneficial to high tubers yield.

关 键 词：山药 干物质积累 分配规律 

分 类 号：S632.1[农业科学—蔬菜学]