บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Effects of infection time and moisture on development of ear blight and deoxynivalenol productoin by Fusarium spp. In wheat.

LACEY, J., BATEMAN, G.L. and MIROCHA, C.J.

Annals of Applied Biology 134: 277-283.

1999

บทคัดย่อ

Effects of infection time and moisture on development of ear blight and deoxynivalenol productoin by Fusarium spp. In wheat.

Wheat ears were inoculated with conidia of Fusarium species at different growth stages between ear emergence and harvest and moist conditions were maintained for up to 7 days subsequently by mist irrigation.  Of the species tested, only F. culmorum  produced ear blight symptoms and grain samples were found subsequently to contain DON. Most ear infection and DON formation occurred following inoculation at about mid-anthesis.  Small amounts of DON were formed and some F. culmorum was isolated even in the absence of ear blight symptoms.  An overmight wet period was sufficient to initiate infection and DON formation but both were increased by extending the wet period up to at least 3 days.