论文部分内容阅读
12月进入寒冷的冬天,常有雨雪发生,气温较低,越冬栽培的辣(甜)椒要加强大棚的保温防寒。同时又要加强大棚的揭盖管理,防止灰霉病、细菌性斑点病等的发生。灰霉病幼苗染病,子叶叶缘开始发黄,后扩展至幼茎,幼茎腐烂缢缩,病部长有灰色霉状物,由病部折断而枯死。成株染病,茎、枝条上初生水浸状不规则病斑,后变灰白色或褐色,病斑绕茎、枝条扩展一周,其上端枝叶萎蔫枯死,病部表面生灰色霉状物。低温、
December into the cold winter, often rain and snow occurred, the temperature is low, the winter cultivation of hot (sweet) pepper to strengthen the greenhouse insulation cold. At the same time, we also need to step up the management of greenhouse cover to prevent the occurrence of gray mold disease and bacterial spot disease. Botrytis cinerea seedlings infected with cotyledons leaf margin began to yellow, and then extended to young stems, young stem rot shrink, disease Minister gray mildew, broken by the disease and died. Adult disease, stems, branches of the newborn infiltrated irregular spots, after the gray or brown, spots around the stems, branches expanded for a week, the upper branches and leaves wilted wilt, disease surface gray moldy material. Low temperature,