摘要
通过定点接种、整体透明及石蜡切片测定,接种后24小时,柑桔炭疽病菌可在温州蜜柑幼嫩叶(叶龄为14天)面上大量萌发并产生附着胞。4天后附着胞可进一步形成细长的侵入丝,直接穿透叶片角质层或者经叶背气孔侵入,然后在叶片上表皮或下表皮细胞内形成潜伏、休眠状态的菌丝,直至叶片受伤,这种菌丝才可进一步生长,扩展至叶肉细胞并形成典型的急性炭疽病分生孢子盘。
The nutri ture in vivo of citrus (Citrus unshin Marc.) is relative to anthracnose development, ie. the pathogen, Colletotrichum gloeosporioides from quiescence turns to vigor leading to formation of anthracnose lesions. The disease incidence will be lower while vigorous growth (le. the total phosphorus and kalium in leaves is higher, in Autumn and winter the nitrogenous compounds in leaves accumulate more) After some juvenescent treatment to tree with higher disease incidence, the growth potential can recover.
出处
《四川农业大学学报》
CSCD
1991年第2期211-214,共4页
Journal of Sichuan Agricultural University
关键词
柑桔
炭疽病
侵染
胶胞炭疽菌
树体
SUBJFCT WORDS: CITRUS-REIICULATA TREES
PLANTDISEASE
ANTHRACNOSE. FREE WORDS: LATENT INFFCTION
COLLEIOIRICHUM GLOFOSPORIOIDES.
