论文部分内容阅读
生姜是一种高产高效的经济作物。随着种植面积的扩大和姜种的调运,姜腐烂病已在各种植区普遍发生。据莒县1995～1996年调查,一般姜田发病率为10%～20%,重者达45%以上,少数地块绝产,严重影响了生姜的产量和品质。一、症状姜腐烂病又称姜瘟病或青枯病,是由青枯假单胞杆菌(Pseudomonas solanscearum)侵染而引起的毁灭性病害。主要侵害地下茎及根部,叶片也可受害。发病初期,植株地上部叶片变枯黄色,萎垂,边缘反卷。病害由茎
Ginger is a high yield and efficient cash crop. With the expansion of planting area and the transfer of ginger species, ginger rot disease has occurred in various plantations. According to the survey of Shexian County from 1995 to 1996, the general incidence of ginger field was 10% to 20%, with over 45% of severe cases, and a few plots were in junk, seriously affecting the yield and quality of ginger. First, the symptoms Ginger rot disease, also known as the ginger blast or bacterial wilt, is a devastating disease caused by the infection of Pseudomonas solanscearum. The main damage to underground stems and roots, leaves can also suffer. In the early stages of disease, the upper leaves of plants turn pale yellow, withered, edge reeling. Diseases by the stems