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魔芋为天南星科(Araceae)魔芋属(Amorphophallus Blume)植物,是富含葡甘露聚糖的经济作物。随着人们对魔芋葡甘露聚糖的进一步研究和深度开发利用,魔芋的生产越来越受到重视,种植方式也由传统的半野生零星种植转向规模化大面积种植。云南是魔芋的起源中心之一[1],其气候环境非常适宜魔芋的生长和种植,但由于规模化种植程度的扩大以及芋农较为粗放的栽培管理方式,魔芋病害日趋严重,新病害亦不断出现。20世纪90年代初,我国魔芋有3种主要病害,现已增至11种。最近在云南省魔芋不同生育期的叶片及茎杆上又发现一种新病害——魔芋疫病。该病水渍状的黑
Amorphophallus Blume is a konjac which is a cash crop rich in glucomannan. With the further research and in-depth exploitation and utilization of konjac glucomannan, the production of konjac is paid more and more attention. The cultivation methods are also shifted from the traditional semi-wild sporadic planting to the large-scale planting. Yunnan is one of the origin centers of konjac [1]. Its climatic and environmental conditions are very suitable for the growth and planting of konjac. However, due to the expansion of large-scale planting and the relatively extensive cultivation and management of taro farming, diseases of konjac are more and more serious and new diseases continue appear. Early 90s of 20th century, China’s konjac has three main diseases, has now increased to 11 species. Recently, a new disease, konjac blight, was found on the leaves and stems of konjac at different growth stages in Yunnan Province. The disease water-like black