木薯饲用型品种的筛选

通过正交试验法，对现有的木薯优良品系进行对比，以筛选出适宜于刈割的饲用型新品种以及对应的配套栽培技术。试验结果表明：木薯新品系ＺＭ９０３６和ＺＭ８６３９在块根产量、茎叶产量、茎叶粗蛋白产量以及抗风能力等主要特性方面均相当或超过对照种华南２０５，可进一步示范推广。植后４－８个月对植株进行刈割则对块根产量造成较大的影响，在这段时间里摘顶时间越早对块根产量的影响越大。但通过刈割可大大提高木薯嫩茎叶和粗蛋白的产量，同时可大大增强植株的抗风能力。

Selection of Feed Cassava Varieties (Manihot esculanta Crantz)

An attempt was made to evaluate and recommend cassava better varieties forforage use from the present 11 existing good clones, as well as their agronomic practices by using the orthogonal experiment method. The results showed that two newclones, ZM9036 and ZM8639, were equal to and /or exceeded the control varietySC205 in main agronomic characteristics, such as yield of root, young stems andleaves, stem and leaf coarse protein content, and wind-resistance. Pruning before rootharvest (4-8 months after planting) produced a significant effect on cassava root yield.The earlier the plants were pruned, the less the root yield produced. However, pruningnot only increased substantially the yield of young stems and leaves and their coarseprotein, but also improved the wind resistance of the plants.