除草活性化合物ZJ2528的室内生物活性

The herbicidal activity of ZJ2528 in greenhouse

ZJ2528是一种具有自主知识产权的玉米田新型除草活性化合物。室内生测试验结果表明:该化合物在玉米田选择性较高,对禾本科杂草狗尾草和马唐的选择性系数分别为1.3和1.7,对阔叶杂草反枝苋和芥菜的选择性系数分别为5.2和7.3;该化合物的杀草谱较广,26种供试杂草中,有4种对其高度敏感,9种敏感,6种中度敏感,7种一般敏感;该化合物的最佳使用适期为杂草芽前和芽后至2叶期;该化合物对不同玉米品种的安全性差异显著,杂交玉米品种安全性最好,甜玉米其次,而糯玉米对该化合物较为敏感。

ZJ2528 is a new patented herbicide in maize field. The bioassay in greenbouse indicated that ZJ2528 had a good selectivity effect on weeds in maize field, and the selectivity coefiqcient was 1.3, 7.3 to Setaria faberii, Digitaria sanguinalis of grass weeds and 5.2,7.3 to Amaranthus retroflexus, Brassica juncea of brood-leaved weeds, respectively, ZJ2528 had a broad spectrum effect on weeds, among the 26 species of weeds tested, there were 4 high-sensitive, 9 sensitive, 6 middle-sensitive and 7 low-sensitive weeds. The optimum spraying period was from germination to 2 leaves of the weed targets. The compound of ZJ2528 had the highest safety to the hybrid maize, the sweet corn was second, and the glutinous maize was sensitive.