4个早熟砂梨引种筛选研究

目的]为推进湖南省砂梨种植结构的合理化。方法]对砂梨品种翠冠、清香、雪英、雪峰的田间生长性状、丰产性和果实品质进行测定,筛选适合湖南栽培的早熟砂梨品种。结果]4个品种的生长性状在湖南的表现为雪峰>清香>雪英>翠冠。雪英的可溶性固形物含量最多,糖酸比最高,故品质最佳,翠冠、雪峰一般,清香最差。雪英的果数最多,丰产性表现最好,翠冠较好,清香一般,雪峰最差。方差分析表明雪英综合表现最佳,翠冠表现次之,清香表现一般,雪峰表现最差。采用多维价值理论进行合成"合理-满意度"的定性分析表明雪英表现最佳,复合合意度最高为0.72,翠冠表现较好,清香表现一般,雪峰表现较差。结论]定量和定性分析均表明雪英综合表现最好,可以成为湖南早熟砂梨主栽品种。

Study on the Introduction and Selection of 4 Cultivars of Early Ripening Sandy Pear

The purpose of the study was to promote the rationalization of the planting structure of sandy pear in Hunan province.The premature cultivar of sandy pear,which was suitable to be planted in Hunan province,was screened out through determining the field growth characters,productivity and fruit quality of sandy pear cultivars of Cuiguan,Qingxiang,Xueying and Xuefeng.The behaving of growth characters of the 4 cultivars in Hunan province was Xuefeng > Qingxiang > Xueying > Cuiguan.The soluble solid content and the ratio of sugar to acid of Xueying was highest,so its quality was best,that of Cuiguan and Xuefeng were general,and that of Qingxiang was worst.The fruit number of Xueying was most with best productivity behaving,that of Cuiguan was better,that of Qingxiang was general,and that of Xuefeng was worst.The variance analysis showed that the comprehensive behaving of Xueying was best,that of Cuiguan was next,that of Qingxiang was general,and that of Xuefeng was worst.The qualitative analysis on synthesized "reasonableness and satisfaction degree" with multi-value theory showed that the behaving of Xueying was best,with highest compound possibility satisfactory degree of 0.72,that of Cuiguan was better,that of Qingxiang was general,and that of Xuefeng was worse.Both Quantitative and qualitative analyses showed that the comprehensive behaving of Xueying was best,which could be the main cultivated variety of premature sandy pear in Hunan province.