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在美国加州利用葡萄苗的多产繁殖法,已经从11个品种的45株母本繁殖出68,000多株经过检定的无病毒葡萄苗来。种植合格的无病毒葡萄无论对葡萄种植业或对消费者都是有意义的。在美国葡萄种植业的年产值为3亿美元;但每年由于葡萄病毒病害所遭到的损失高达1亿美元。
Over 68,000 tested, virus-free grape seedlings have been bred from 45 breeds of 11 breeds in the California multiplication program using grape seedlings. Growing qualified, virus-free grapes makes sense both for the grape industry and for the consumer. The annual output value of the grapevines in the United States is 300 million U.S. dollars, but the annual losses due to the diseases of the grapevines reach as high as 100 million U.S. dollars.