[Objective] The aim was to select new cassava varieties suitable for planting in different areas of Guangdong.[Method] From 2008 to 2012,the introduction test about the new varieties of cassava was conducted at different region of Guangdong.Cassava varieties was Huanan 5,Huanan 7,Huanan 8,Huanan 10,Nanzhi 199,Guire 4,resp.,the introduction areas was Suixi of Zhanjiang,Huazhou of Maoming,Yunan of Yunfu,Yangchun of Yangjiang,Kaiping of Menjiang,Huaiji of Zhaoqing,Lufeng of Shanwei,Yangshan of Qingyuan,resp..[Result] The observation results about the biological and ecological characteristics,growth,crop yield,starch content showed that in hills or sloping land of Western and Eastern Guangdong,the yield of Huanan 5 increased significantly,and also achieved the effects of disaster reduction and stable yield; In the slope farmland of Western and Eastern Guangdong,the yield of Huanan 7,Hunan 10 increased significantly; In the slope farmland or sloping land of Northern Guangdong,the yield of Huanan 8 and Nanzhi 199 increased significantly.[Conclusion] The study provides a technical support for cassava grower and cassava processing industry.%[目的]筛选适宜广东不同地区的木薯(Manihot esculenta)新品种.[方法]2008 ～ 2012年,在广东不同的区域开展木薯新品种引种试验.木薯品种分别为华南5、华南7、华南8、华南10、南植199、桂热4,引种地分别为湛江的遂溪、茂名的化州、云浮的云安、阳江的阳春、江门的开平、肇庆市怀集、汕尾的陆丰、清远的阳山.[结果]通过观测其生物学及生态学特性、生长,测定产量及淀粉含量,发现华南5号在粤西、粤东的丘陵和岗坡地种植丰产高效显著且达到减灾稳产的效果,华南7号、华南10号在粤西、粤东的坡耕地种植丰产高效显著,华南8号、南植199在粤北坡耕地和岗坡地种植丰产高效显著.[结论]该研究可为薯农及木薯加工产业提供技术支撑.
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