陕西不同生态区苹果品质差异及与气象因子的关系

发布时间：2018-05-06 05:18

本文选题：苹果 + 品质　；参考：《气象》2017年07期

【摘要】：为做好苹果气候品质认证工作,基于2013—2015年陕西31个苹果种植生产基地县155片果园的果实品质调查数据和物候监测资料,应用灰色关联度分析和逐步回归方法,分延安果区、渭北东部果区、渭北西部果区和关中果区4个生态类型区,分析了苹果品质的分异特征,研究了影响苹果品质的关键物候期及主要气象因子。结果表明:各生态类型区的果形指数和可滴定酸含量较为一致,单果重、可溶性固形物含量和果实着色度差异较为明显。第一次膨大期最高气温、生长季最高气温和幼果期平均气温对苹果品质的影响最为显著。其中开花期和幼果期气温高、降水少,第一次膨大期气温低、日照多,着色期气温低、相对湿度大有利于提高陕西苹果品质。利用多元回归构建的品质预测模型拟合效果较好,可在业务中应用。
[Abstract]:In order to do a good job in the certification of apple climate quality, based on the investigation data of fruit quality and phenological monitoring data of 155 fruit orchards in 31 apple planting and production base counties in Shaanxi Province from 2013 to 2015, grey correlation analysis and stepwise regression method were used to divide the fruit area of Yan'an. The differentiation characteristics of apple quality were analyzed and the key phenological periods and main meteorological factors affecting apple quality were studied in the four ecological types of fruit regions in the eastern part of Weibei, western Weibei and Guanzhong fruit regions. The results showed that the fruit shape index and titratable acid content of each ecological region were consistent, and the difference of fruit weight, soluble solids content and fruit color was obvious. The highest temperature in the first expansion period, the maximum temperature in the growing season and the average temperature in the young fruit stage had the most significant effects on the apple quality. Among them, high temperature in flowering period and young fruit stage, less precipitation, low temperature in the first expanding period, more sunshine, low temperature in coloring period, and great relative humidity are beneficial to improve the quality of Shaanxi apple. The quality prediction model constructed by multivariate regression has good fitting effect and can be applied in business.
【作者单位】：陕西省经济作物气象服务台;陕西省气象台;
【基金】：中国气象局气象关键技术集成与应用项目(CMAGJ2015M60)、中国气象局气候变化专项(CCSF201621) 陕西省经济作物气象服务台业务维持经费共同资助
【分类号】：S162.55;S661.1

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