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霜霉病是葡萄的一种世界性病害。虽然在正常情况下可以用化学药剂进行有效的控制,但在多雨的年份它常常大发生,给生产造成巨大损失。所以世界各国对葡萄霜霉病的抗病育种都进行了大量的研究。抗病性鉴定是抗病育种的基础。只有选择正确的接种方法和适宜的接种浓度才能准确地区别出不同材料的抗性,选出抗性强的植株。关于葡萄霜霉病的接种浓度,文献上有不同的记载。为了确定适宜的接种浓度,我们于1984年进行了葡萄霜霉病不同浓度的接种试验。
Downy mildew is a worldwide disease of grapes. Although chemical fertilizers can be effectively controlled under normal conditions, it often occurs in rainy years, causing huge losses to production. Therefore, many countries in the world have done a lot of research on the resistance breeding of grape downy mildew. Disease resistance identification is the basis for disease-resistant breeding. Only by selecting the correct method of inoculation and appropriate inoculation concentration can accurately distinguish the resistance of different materials, select the plants with strong resistance. There are different records on the concentration of grape downy mildew in the literature. In order to determine the appropriate inoculation concentration, we carried out in 1984 different levels of grape downy mildew inoculation test.