Haack confirmed his assumption of gradual differences in resistance by making artificial inoculations on infected, less infected and healthy trees . Haack通過(guò)在被侵染,較少侵染和健康樹木上實(shí)行人工接種,證實(shí)了他關(guān)于在抗性方面程度漸次不同的假設(shè)。
Haack confirmed his assumption of gradual differences in resistance by making artificial inoculations on infected , less infected and healthy trees Haack通過(guò)在被侵染,較少侵染和健康樹木上實(shí)行人工接種,證實(shí)了他關(guān)于在抗性方面程度漸次不同的假設(shè)。
The resistance of 7 grapevine varieties to plasmopara viticola was estimated by natural infection and inoculation on leaf discs in vitro , as well as artificial inoculation on plants in the field , in the meantime , the regular of p . viticola and three biochemical contents were also determined 摘要利用7個(gè)酒葡萄品種對(duì)霜霉病抗性進(jìn)行了鑒定,并研究了不同感病性酒葡萄品種霜霉病的發(fā)生情況及霞多麗品種葉片內(nèi)三項(xiàng)生化指標(biāo)的變化。