| 王国良1;李国雷2;吴明华3.西兰花花梗褐心病研究[J].植物保护,2005,31(1):56-59. |
| 西兰花花梗褐心病研究 |
| Study on pedicle brown pith of broccoli |
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| DOI： |
| 中文关键词: 植物病理学 西兰花花梗褐心病 寄生霜霉 防治 |
| 英文关键词:phytopathology pedicle brown pith of brocooli Peronospora parasitica control |
| 基金项目: |
| 王国良1;李国雷2;吴明华3 |
| 1.浙江万里学院生物系 浙江宁波 315100;2.浙江省象山县农技推广中心 浙江象山 315700;3.浙江省象山县丹西街道农技站 浙江象山 315700 |
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| 中文摘要: |
| 西兰花花梗褐心病的主要症状为病花梗表面和内部有小褐斑,髓部水渍状并可扩展到花球主轴髓部,花球中部分花梗和花蕾的发育受阻。病花球保湿2～3d后,其切口可形成大量白色霜霉状物。经鉴定,该病害是由寄生霜霉(Peronospora parasitica)引起的新症状,病菌主要在幼蕾期侵染。在西兰花幼蕾期喷施58%甲霜·锰锌可湿性粉剂500倍液有很好的防治效果。 |
| 英文摘要: |
| Symptoms of pedicle brown pith of broccoli were some pedicles and buds stunting, small brown spots on surface and inner and water-soaked in pith of the pedicle. In mist chamber, after 2～3 d, mass downy growth of the sporophores of the fungus appears on the wound of the diseased pedicle. Experiment showed that the new symptom was caused by Peronospora parasitica. The infection main occurred in young flower ball period. A good prevention and cure result could gain by spraying 500 times 58% ridomil-MZ in the young flower ball period. |
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