“长青”是近年来我们与广大贫下中农相结合选育出的较优良的秋黄瓜单交种之一。1974-1976年多点试验鉴定的结果表明,该杂种优势较强,此京郊常用的秋黄瓜品种明显增产,且有抗病、抗热等特点,受到贫下中农的欢迎。自1977年起在京郊大面积推广,可望逐步成为夏秋黄瓜主栽品种。 “Evergreen ” is one of the better autumn cucumber monocultures bred by the combination of the poor and the middle peasants in recent years. The results of multi-point experiments from 1974 to 1976 showed that the heterosis was strong. The varieties of autumn cucumbers commonly used in this suburb of Beijing increased obviously, and they were resistant to disease and heat. They were welcomed by poor middle peasants. Since 1977, large-scale promotion in the suburbs of Beijing, is expected to gradually become summer cucumber varieties.