金沙江干热河谷木薯引种适应性研究

对20个木薯品种在云南省金沙江干热河谷进行适应性研究。结果表明．试种区5～10月期间全部品种的生长变化规律相似，即各品种在5～7月生长缓慢，7～9月生长迅速．9月之后生长变缓，进入10月后茎叶脱落，地上部分停止生长。不同’品种长势不一，南植188、KU50（Ⅱ）、滇南红、OMR36—40—9、薯王983、华南8号生长旺盛；新选048、ZM8641、华南7号、华南124、GR911、ZM8803、华南5号、南植199、新选056长势量居中；华南9号、华南6号、ZM8316、华南205、BRA900生长量偏小。综合分析各项指标，初步得出华南205号、华南124、华南8号、华南9号较为适合在金沙江干热河谷生长。

Cassava Germplasm Introduction Experiment in Dry-hot Valley of Jinsha River

20 cassava varieties were used for adaptability study in dry-hot valley of Jinsha River in Yunnan Province, China. The result as follows all of varieties presented similar growth trend that slow growth from May to July, rapid growth from July to September, slow growth after September, October later leaf abscission and aboveground growth cessation. There are differences between every cassava varieties. The growth amount of Nanzhi188, KU50 （ Ⅱ ） , Diannanhong, OMR36-40-9, Shuwang983 and SC8 were more than other varieties. The growth amount of Xinxuan048, ZM8641, SC7, SC, GR911, ZM8803, SC5, Nanzhi199, Xinxuan056 were on the middle levels. The growth amount ofSC9, SC6, ZM8316, SC205, BRA900 were lower. Comprehensive analysis of various indices, we initially identified the varieties of SC124, SC8, SC9, SC 205 are suitable for growth in dry-hot valley of Jinsha River.