云南干热河谷木薯淀粉及干物质含量变化规律研究

Studies on Variation Regularity of Cassava's Starch and Dry Matter Contents in Yunnan Arid-hot Valley

以云南省农科院热区生态农业研究所从中国热带农业科学院热带作物品种资源研究所及其它地区引进的25个木薯品种(材料)在金沙江干热河谷区试种,每个品种(材料)试种0.1 hm2,2007年1月种植,在木薯主收获期2007年12月、2008年1月、2008年2月分别对木薯干物质含量、淀粉含量进行测定,探索不同品种干物质及淀粉变化规律,确定不同品种的最佳收获期,科学指导农户和企业生产,使之产生最大的经济效益。

In arid-hot valley of Jinsha river,25 cassava varieties（materials） introduced from Tropic Crops Genetic Resources Institute and other areas were planted experimentally,and each variety（material） was planted 0.1 hm2 in January 2007.The dry matter and starch contents of different tested varieties（materials） were determined in the main harvest periods of cassava as December 2007,January 2008 and February 2008,respectively,to study the variation regularity of dry matter and starch contents of different varieties（materials）,and the best harvest period of different varieties（materials） was proposed to guide farmers and companies planting cassava with more benefit.