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牛奶葡萄属欧亚种(Vitis Vinifera L.)东方品种群,生长势强,结果系数较低,习惯认为是我国原产的品种。河北宣化是我国著名的牛奶葡萄集中产区,栽培历史悠久,但大小年现象严重,产量品质逐年下降,截至1984年为止,亩产仍徘徊在一千斤左右。本试验系“牛奶”葡萄整形、修剪和改架总课题中的一个部分,即枝条粗度及其对生长结实的影响。
Milk Vitis vitis (Euonymus species) (Vitis Vinifera L.) Oriental species, growing strong, low coefficient of the result, the habit that is China’s native varieties. Xuanhua, Hebei Province, is a famous milk grape producing area in China. It has a long history of cultivation. However, the size and year-end are serious, and the output and quality are declining year by year. As of 1984, the output of mu is still hovering at about one kilogram. This experiment is a part of the general topic of plasticity, pruning and modification of “milk” grapes, namely, the thickness of branches and their effect on the growth and fruiting.