论文部分内容阅读
调查研究结果认为泡桐属叶毛类型有单枝毛、腺毛、叉状毛和树状毛4大类型。各类又有长柄、短柄或无柄之别。叶背有无叶毛和叶毛类型的不同对丛枝病的抗性有很大差异。叶背无毛或毛非常稀少对丛枝病高度感染,叶背毛为无柄(或几无柄)树状毛、短柄叉状毛和短柄、腺细胞小并无粘性腺毛的泡桐感病,叶背为不同类型的混合毛亦感病,但感病程度随长柄和短柄毛的比例不同而有所差异。叶背毛为较稠密的长柄树状毛、长柄叉状毛、长柄单枝毛和长柄、腺细胞大的粘性腺毛的泡桐为高度抗病。抗病的原因是抗传毒介体昆虫。
The results of the survey indicated that there are four types of leafhopper in the genus Paulownia including single branch hair, glandular hair, fork-like hair and dendritic hair. There are all kinds of long handle, short handle or no other handle. Leaf back with or without leaf hair and different types of leaf broom disease resistance are very different. Leaf hairless or very rare hair on the broom disease highly infected, leaf dorsal hair to sessile (or few sessile) dendritic hair, short handle shank hair and short handle, small glandular cells without adhesive glandular hair flu Diseases, leaf back for different types of mixed hair also susceptible, but the degree of susceptibility varies with the proportion of long-handled and short handle hair. Leaf dorsal hair for the more dense long-dendritic hair, long-handled forked hair, long-handled single-branch hair and long-handled, glandular cells of the large viscous glandular hairy Paulownia is highly resistant. The cause of disease resistance is anti-toxic mediator insects.