为了探明西藏野生草莓的果实品质，以西藏林芝地区西南草莓为研究对象，同时以当地种植的大果草莓‘甜查理’作为对照，采用对比分析的方法，对两种草莓果实的单果质量、果形指数、可溶性固形物、可溶性糖、可滴定酸、糖酸比、VC含量等指标进行了测定分析，并运用投影寻踪技术对其综合性状进行了评价分析。结果表明：除果形指数外，西南草莓果实各表型指标值均低于对照草莓，不同种类果实间差异显著（P＜0.01， n＝30）；西南草莓果实各品质指标值均显著低于对照草莓（P＜0.05，n＝5），而其总酸含量却极显著高于对照草莓（P＜0.01，n＝5），但两种草莓果实的可溶性糖含量和VC含量间的差异均不显著（P＞0.05，n＝5）。PPE模型分析结果表明：西南草莓果实品质的函数投影值(1.1804)远低于对照草莓（4.0982）。因此，西藏野生西南草莓果实偏酸，风味佳，但其果实外观较差，而对照栽培草莓果实较为甘甜，口感较好，其商品性较好。与当地栽培的大果草莓品种相比，西藏野生西南草莓果实质量较差，但今后可作为风味草莓来开发利用。%In order to explore fruit quality of wild strawberry in Tibet, wildFragaria moupinensis in Linzhi were chosen as the study materials, and the big fruit strawberries ‘Sweet Charlie’ in the local were chosen as control materials. Single fruit mass, fruit shape index, soluble solid content, soluble sugar content, titration acid content, sugar-acid ratio and vitamin C content were measured and analyzed, and the comprehensive characters were evaluated and analyzed by using projection pursuit technology. The results showed that the phenotype indexes inF. moupinensis fruits were signiifcantly lower than the control (P<0.01,n=30), expect fruit shape index. The quality indexes inF. moupinensisfruits were lower signiifcantly than the control (P<0.01,n=5), and the total acid content inF. moupinensisfruit was signiifcantly higher than the control (P<0.01,n=5), but there were no obvious differences between the soluble sugar content and vitamin C content in the two kinds fruits (P>0.05,n=5). The results of PPE model analysis showed, projection values ofF. moupinensis was 1.1804, which was lower than the control (4.098 2). These results indicated that theF. moupinensis fruit was a little acidic, and it tasted better, but its commercial property was poorer, while the control strawberry fruit was more sweet, which had good taste and good commercial property. So quality ofF. moupinensis fruit was limited compared with CK, which could be used as the breeding material forlfavor fruit.
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