本文研究了篱架和棚架栽培模式对葡萄品质及霜霉病发病程度的影响。试验结果表明，棚架栽培较篱架能有效地减轻葡萄霜霉病的危害。在篱架栽培模式下，葡萄叶片上出现典型病斑，病情指数为0.41；棚架栽培典型病斑出现较晚，病情指数为0.05。两种栽培模式下，葡萄病情指数随时间的推移逐渐增加，棚架葡萄霜霉病病情指数明显低于篱架。棚架葡萄的穗重、粒重、果实纵横径、可溶性固形物和VC含量高于篱架葡萄，棚架栽培有利于葡萄品质的提高。在潮湿多雨地区，建议采用棚架式栽培。%Effects of pergola and vertical trellis systems on fruit quality and morbidity degree of downy mildew in grapes. Compared with vertical trellis systems, downy mildew damage of grapes had been reduced effectively under pergola cultivation. Typical spots of downy mildew appeared in grape leaves and disease index was 0.41 under vertical trellis systems. Under pergola cultivation condition, typical spots of downy mildew appeared later in grape leaves and disease index was 0.05. Disease index of grape leaves gradually increased as time passed under two cultivation model. Disease index of grape leaves under pergola cultivation was significantly less than that under vertical trellis systems. Disease index of grape leaves under pergola cultivation was fifty percent of that under vertical trellis systems. The spike weight, kernels weight, fruit vertical and transverse diameter, soluble solids, vitamin c of grape leaves under pergola cultivation were higher than that under vertical trellis systems. Pergola cultivation was beneficial to the improvement of fruit quality in grapes. Pergola cultivation was suitable for humid and rainy regions.
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