不同甘蔗品种对60％环·敌WP敏感性试验

Sensitivity of 60% hexazinone-diuron WP on different sugarcane varieties

为了解60%环.敌WP在不同品种蔗田应用的安全性,通过田间小区试验测定了6个常栽甘蔗品种对60%环.敌WP的敏感性。结果显示,粤糖95/168的敏感性最高,新台糖16号的敏感性最低,二者差异显著;新台糖22号、桂糖11号、桂糖21号、粤糖94/128等4个品种对60%环·敌WP的敏感性介于上述二者之间,这4个品种对60%环·敌WP敏感性虽有差异但不明显,表明甘蔗对60%环.敌WP的敏感性与品种有关,从某个品种的敏感性不能推断该品系所有品种的敏感性都是低的或高的。因此,要明确甘蔗品种对60%环·敌WP的敏感性,必须进行试验测定。

A comparative experiments was designed to determine the sensitivities of six common sugarcane varieties to 60 % hexazinone-diuron WP in order to assess the safety of the herbicide mixture in sugarcane field. The result showed that YT95/168 had the highest sensitivity and ROC16 the lowest, and the sensitivities that of YT94/128, ROC22 , GT11 ,GT21 were in between that of YT95/168 and ROC16. Among the four, there were some differences but no significance. The result also indicated that sensitiviy of sugarcane to 60% hexazinone-diumn WP was related to sugarcane varieties, but unrelated to strains. Sensitivity of a particular sugarcane variety to 60 % hexazinone-diuron WP was not to be inferred high or lower sensitivity of all varieties. So the sensitivity of a sugarcane variety to 60% hexazinone-diuron WP will be clearly defined only bv determination test.