| 查看: 889 | 回复: 8 | ||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | ||
ngxiaochu金虫 (小有名气)
|
[求助]
Anthracnose leaf blight on corn 是玉米的什么病？
|
|
| 请教各位专家，求详解。。。 |
回复此楼» 猜你喜欢
全日制（定向）博士
已经有5人回复
-
假如你的研究生提出不合理要求
已经有10人回复
-
萌生出自己或许不适合搞科研的想法，现在跑or等等看？
已经有4人回复
-
Materials Today Chemistry审稿周期
已经有4人回复
-
参与限项
已经有3人回复
-
实验室接单子
已经有4人回复
-
对氯苯硼酸纯化
已经有3人回复
-
求助:我三月中下旬出站，青基依托单位怎么办？
已经有12人回复
-
所感
已经有4人回复
-
要不要辞职读博？
已经有7人回复
ngxiaochu
金虫 (小有名气)
- 应助: 10 (幼儿园)
- 金币: 507.7
- 散金: 10
- 帖子: 75
- 在线: 16.5小时
- 虫号: 2112448
- 注册: 2012-11-07
- 专业: 农学基础
3楼2013-03-21 00:03:08
【答案】应助回帖
★
感谢参与，应助指数 +1
ngxiaochu: 金币+1, ★★★很有帮助 2013-03-22 10:40:19
感谢参与，应助指数 +1
ngxiaochu: 金币+1, ★★★很有帮助 2013-03-22 10:40:19
|
详细请见http://www.ent.iastate.edu/image ... 796.33anthracn.html和http://www.ipm.iastate.edu/ipm/icm/2001/6-18-2001/smallcorn.html。 “We also have started to see anthracnose lesions on small corn plants. Anthracnose leaf blight (caused by the fungus Colletotrichum graminicola) is usually one of the first leaf diseases to appear. The fungus survives in crop residue and its spores are splashed onto the leaves. Anthracnose is definitely more severe where corn follows corn. Symptoms are brown, oval, or elliptical spots (up to about 1/2 inch in length) with a dark brown or purplish border, often surrounded by a yellowed zone. There may be black speckles within the dead tissue. Sometimes the symptoms are limited to the leaf margins. Anthracnose can cause significant damage to very young plants and contributes to postemergence stand loss, but it appears that it has been too cold for this disease to develop much until now. As with the bacterial leaf diseases, we do not expect any economic impact of these early-season leaf infections this year.” |
2楼2013-03-20 21:12:58
fengmx2010
木虫 (著名写手)
- 应助: 9 (幼儿园)
- 金币: 4659.4
- 红花: 2
- 帖子: 1353
- 在线: 234.1小时
- 虫号: 1227370
- 注册: 2011-03-09
- 性别: MM
- 专业: 植物化学保护
4楼2013-03-21 08:45:22
ngxiaochu
金虫 (小有名气)
- 应助: 10 (幼儿园)
- 金币: 507.7
- 散金: 10
- 帖子: 75
- 在线: 16.5小时
- 虫号: 2112448
- 注册: 2012-11-07
- 专业: 农学基础
5楼2013-03-21 13:17:44