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农用杀菌剂的作用是尽可能减少植物病害引起的作物损失.波尔多液是第一个实际使用的杀菌剂,大约于一百年前在法国用于防治葡萄霜霉病.自从那时候开始,发现了不少杀菌剂,并商业性开发供应市场.这些杀菌剂大体可分为两类:接触和内吸杀菌剂(表1).接触杀菌剂也称为“表面”或“残留”杀菌剂,它们不能内吸进入植物体内,只是复盖植物表面保护植物免遭病菌侵害.相反,内吸杀菌剂能渗透进入植物组织,从用药处理的部分可转移到新出枝叶和未处理的部分,并保护它们免遭病菌侵染.由于这一独特的内吸杀菌特性,因此采用植物秧苗进行活体测试代替离体测试就显得十分重要了.进而,最近发展的一些内吸
The role of agricultural fungicides is to minimize crop losses caused by plant diseases Bordeaux mixture is the first fungicide actually used to control grape downy mildew in France about a hundred years ago and since then it has been discovered A number of fungicides, and the commercial development of the supply market.These fungicides can be broadly divided into two categories: contact and systemic fungicide (Table 1) Contact fungicides, also known as “surface” or “residual” fungicides, They can not be imbibed into the plant and merely cover the surface of the plant to protect the plant from germs.In contrast, systemic fungicides penetrate into the plant tissue and can be transferred from the treated part to the new and untreated branches Protect them from germs.Due to this unique systemic germicidal properties, it is important to use in vivo tests instead of in vitro tests with plant seedlings.Furthermore, some of the more recent systemic aspirations