不同品种葡萄一年两熟栽培技术研究

以温克等10个葡萄品种为试材，通过结果习性观察，从不同促萌时间等方面研究其一年两熟栽培技术。结果表明：早红提、维多利亚、时代1号、夏黑、小贝和温克等6个品种易产二造果；二遣促萌剪口粗度应大于0．8cm；结果枝冬芽和一次副梢夏芽二造成花率高，是生产二造果的主要芽类；两代同堂适宜的促萌时间为5月下旬至7月上旬，两代不同堂适宜的促萌时间为7月下旬至8月上旬；促萌至二造果成熟，早熟和中熟品种需97d、晚熟品种需144d，可作为推断促萌时间调节熟期的参考。

Technical study of annual two-maturity in grape varieties

To take ten varieties such as Wenke as experimental materials, observing their fruit-setting characters, a research of annual two-maturity cultivation technology in aspects of different germination-promoting time etc. the results show Six varieties such as Zaohongti etc. are easier to produce second harvesting fruits. The snip diameter of germination-promoting should be bigger than 0.8 cm. the winter bud of fruiting branches and summer bud of subsidiary branch will have higher flower-setting rate in second harvest, which are the main buds to produce the second fruits. The suitable germination-promoting time for two generations at same time is from late May to earlier July and the suitable germination-promoting time for two generations not at same time is from late July to earlier August. From germination-promoting to second fruit maturity, it takes about 97 d for early maturity and middle maturity varieties, 144 d for late maturity varieties, which can be the references to forecast germination-promoting time for adjusting maturity period.