【摘 要】
:
甘蓝黑腐病在全国各地均有发生,是由甘蓝黄单胞杆菌(Xanthomonas campestris)引起的维管束病害,有的地区或个别地块造成较大损失。其症状的表现比较复杂,不仅呈现“V”字形
论文部分内容阅读
甘蓝黑腐病在全国各地均有发生,是由甘蓝黄单胞杆菌(Xanthomonas campestris)引起的维管束病害,有的地区或个别地块造成较大损失。其症状的表现比较复杂,不仅呈现“V”字形病斑,还表现其它类型的症状,为此,我们对甘蓝黑腐病的症状及其变化进行了详细观察。
Black cabbage black rot occurs in all parts of the country. It is a vascular bundle disease caused by Xanthomonas campestris, causing some losses in some areas or individual plots. Symptoms of the performance is more complicated, not only showing “V” -shaped lesion, but also show other types of symptoms, for which we have a detailed observation of the symptoms and changes of cabbage black rot.
其他文献
野蚕(Bombyx mandarina Moore)属鳞翅目家蚕蛾科,是桑园主要食叶性害虫之一。1988年,我所与国际原子能机构(IAEA)签订合同,开展利用昆虫不育技术防治野蚕的研究。其原理是利
请下载后查看,本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
请下载后查看,本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
Aim:Silybin(silibinin)is major biologically active flavonolignan extracted frommilk thistle(Sylibum marianum).Its biological activities include hepato-protecti
请下载后查看,本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
一般来说,大家都认为按年龄层来分的话,老年人应该是电视最忠实的观众群。但是,实际的情况好像并非如此。我用自己身边的例子来说明一下。当教师的老爸退休后被聘到一所私立
请下载后查看,本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
请下载后查看,本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
韩寒一度是许多“80后”和“90后”心目中的偶像。他在学生时期因为获得新概念作文比赛第一名而一举成名,之后又因为退学引发社会争议,成就“韩寒现象”。此后,他出版首部长
请下载后查看,本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.