兴安县从80年代后期开始栽培葡萄,到1999年底已发展到3.1万亩。然而,该县年降雨量达1814毫米,而葡萄栽培适宜于年降雨量800毫米的地区。由于雨水多,湿度大,病害发生严重,特别是花期阴雨,坐果率低,易造成单性结实,产量品质不佳。 Xing’an County began cultivating grapes from the late 1980s and has grown to 31,000 mu by the end of 1999. However, the county rains 1814 millimeters annually, while viticulture is suitable for areas with an annual rainfall of 800 millimeters. As the rain and more humidity, disease serious, especially the flowering overcast, fruit set rate is low, easy to cause unisex, yield and poor quality.