盐碱地不同树莓品种果实品质比较

Differences of Fruit Quality among Varieties of Raspberry Crop in Saline-alkali Soils

为了比较不同树莓品种在盐碱土壤上果实品质的差异,试验以5个树莓品种(‘莎妮’、‘诺娃’、‘哈瑞太兹’、‘香妃’和‘红宝’)的果实为试材,测定了单果重、果形指数、色度(明暗度、红绿色差、黄篮色差)、果柄长、可溶性糖、可滴定酸、糖酸比、含汁率等指标,并通过隶属函数的计算进行了果实品质的综合分析。结果表明:单果重最高的是‘红宝’,‘莎妮’果形指数最高,‘诺娃’在色差(红绿)方面表现最红、果柄最长、可溶性糖含量最高、可滴定酸含量最高,‘红宝’糖酸比最高,‘香妃’含汁率最高。综合分析结果为:‘诺娃’的果实品质最好,‘红宝’次之,然后是‘香妃’、‘哈瑞太兹’,‘莎妮’品质最差。各指标的相关性分析显示:单果重、果柄长和可滴定酸与果实含汁率呈正相关;果形指数、色差和可溶性糖与糖酸比呈正相关。

In order to compare the differences of fruit quality among five raspberry varieties crop in saline-alkali soils, the appearance quality （single fruit weight, fruit shape index, chromaticity and peduncle length） and inter-quality （soluble sugar, titratable acid, sugar-acid ratio and edible rate） of‘Sa Ni＇ （SN）, ‘Nuo Wa＇ （NW）, ‘Heritage＇, ‘Xiang Fei＇ （XF） and ‘Hung Bao＇ （HR） varieties were researched, and then analyzed by membership function. The results showed that the single fruit weight and sugar-acid ratio were highest in ‘HB＇, the chromaticity, peduncle length, soluble sugar and titratable acid were highest in ‘NW＇. The fruit shape index was highest in ‘SN＇. The edible rate was highest in ＇XF＇. In conclusion, the fruit quality was high in ‘NW＇, middle in ‘HB＇, and then ‘XF＇ and ‘Heritage＇, low in ＇SN＇. The correlation analysis showed that： The single fruit weight, peduncle length and titratable acid were positively correlated with edible rate. The fruit shape index, chromaticity and soluble sugar were positively correlated with sugar-acid.