不同酒葡萄品种对霜霉病的抗性研究

Study on Different Grapevine Resistances to Plasmopora viticola

利用7个酒葡萄品种对霜霉病抗性进行了鉴定,并研究了不同感病性酒葡萄品种霜霉病的发生情况及霞多丽品种叶片内三项生化指标的变化。结果表明,在供试品种中,没有对霜霉病完全免疫的酒葡萄品种,但不同酒葡萄品种间抗性存在着显著的差异。其中,贝特和SV6059属低感品种,感病较重的品种有霞多丽、伏罗西,而华北264、夏夫拉尼、品丽珠感病性中等。随着发病程度逐渐加重,葡萄叶片内可溶性蛋白质、可溶性糖含量逐渐下降,而超氧化物歧化酶活性则呈上升趋势。

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. The result showed that the resistance was obvious different between different germplsm Even though no species with immunity from P.viticola within those provided varities.The susceptipibilities of chardonnay and Fuluoxi to P.viticola are the highest; Beite and SV6059 are slightly susceptible;Cabernet Franc ,huabei264 and Xiafulani are moderately susceptible. The determining of biochemical conntents ofgrape leaves showed that with disease indexes to be high,Protein content, soluble sugar were gradually low,but superoxide dismutase (SOD) content was increase.