论文部分内容阅读
白粉病是切花月季的主要病害之一,在世界各地普遍发生,温室生产时全年都可发病。该病对切花月季的危害较大,较轻的病害会引起嫩叶扭曲变形、植株长势减弱和降低切花的观赏价值;严重的病害将造成植株落叶、花蕾畸形或不能开放、枝条枯死甚至整株死亡。病原毡毛单囊壳(S p h a e
Powdery mildew is one of the major diseases of cut rose, occurring all over the world. The disease is more harmful to the cut rose, the lighter disease will cause the twisted leaves of young plants, weaken the growth of plants and reduce the ornamental value of cut flowers; severe diseases will cause plant deciduous, flower buds deformity or not open, dead branches and even the whole plant death. Fungal Fetal Single-shell (S p h a e