【摘要】 通过对云南省永仁县神宇新能源公司老怀哨玉碗水和永兴灰坝梁子麻疯树(Jatropha curcas)基地新造林地的调查研究,发现2种麻疯树病害,其中一种表现为枝干腐烂,另一种表现为根茎腐烂;发病率分别为1.2%和2.3%,但危害严重;通过鉴定,引起枝干腐烂的病原菌的分生孢子阶段属于半知菌的聚生小穴壳菌(Dothiorella gregaria),引起根茎腐烂的病原菌的分生孢子阶段属于半知菌的色二孢属的一种(Diplodiasp.),未发现它们的有性世代。更多还原

【Abstract】 Through the investigations and researches on Jatropha curcas base new afforestation forest land owned by Yunnan Yongren Shenyu New Energy Company in Laohuaishaoyuwanshui and Yongxinghuibaliangzi,2 diseases were found.One symptom occurred as stalk rot,and another occurred as root and stem rot.The incidences of diseases were 1.2% and 2.3% respectively,but the diseases damage were serious.Through the identification,the conidia phase of pathogen caused the stalk rot belonged to Dothiorella gregaria of deuteromyceteand,the other belonged to Diplodia sp.of deuteromycete.The their sexual generations were not found.更多还原