| 摘要: |
| 【目的】研究酿酒葡萄蛇龙珠果实品质的空间变异性，为其合理采收和管理提供依据。【方法】以烟台蛇龙珠葡萄园为研究对象，采用GPS和GIS技术对200 hm2园区46个区域的葡萄果实理化指标（果实产量、果穗质量、百粒质量、总糖、总酸、pH、总酚、单宁、总花色苷、黄酮和黄酮醇）进行地统计学和Kriging插值分析。【结果】葡萄果实指标均服从正态分布，其中总糖和pH的变异系数小于10%，具有弱变异性;其他各指标的变异系数为10.54%～69.77%，具有中等变异性，其中果实产量的变异系数最大(69.77%)，不同区域产量差异达30倍。葡萄果实指标存在中等或强的空间相关性，且均具有明显的空间分布规律。【结论】可以根据葡萄果实指标的空间分布特征对葡萄园进行合理分区采收，以酿造不同质量和风格的葡萄酒。 |
| 关键词: 蛇龙珠 果实品质 空间变异 精准葡萄栽培 |
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| 基金项目:泰山产业领军人才工程专项；国家高技术研究发展计划项目（2013AA102108）；鲁东大学科研基金项目（LY2013019）；2017年国家级创新训练项目（201710451351） |
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| Spatial variability in grape quality of Cabernet Gernischt within vineyard |
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SONG Jianqiang,CHENG Shiwei,JIANG Wenguang,et al
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| Abstract: |
| 【Objective】This study explored the spatial variability and distribution of wine grape quality to provide basis for selective harvesting.【Method】The experiment was carried out in a Cabernet Gernischt vineyard located in Yantai,China.GPS and GIS technology was applied to study the spatial variability and distribution of grape variables,including grape yield,cluster weight,100-berry weight,total sugar,titratable acidity,pH,total phenols,tannins,anthocyanins,flavonoids and flavanols,based on the data of 46 grape samples picked 1 week before harvest.【Result】All grape parameters followed normal distribution,exhibiting moderate spatial variability with coefficient of 10.54%-69.77%,except total sugar and pH had weak variability with coefficient of lower than 10%.The yield had the highest coefficient of variability (69.77%) with up to 30 times differences in the vineyard.The grape attributes exhibited strongly or medium spatial correlation,and there were apparent spatial differences.【Conclusion】Harvest of grapes with reasonable differences at specific areas within a vineyard for differential wine styles and qualities according to the spatial distribution patterns of grape parameters is feasible. |
| Key words: Cabernet Gernischt berry quality spatial variation precision viticulture |
