Taking five blueberry varieties introduced from abroad as the experimental materials,the appearance indicators (such as transverse diameter, vertical diameter, single fruit weight, fruit shape index, color, etc.) and nutritional components (such as vitamin C, soluble pro-tein, free amino acids, soluble sugars, starch and anthocyanins) of their fruits under planting conditions in Lijiang were studied. Principal component analysis was used to analyze all indicator parameters.The results showed that O'Neal had the highest fruit shape index (0.86), single fruit weight (1.87 g) and anthocyanin content (440. 5 μg/g), as well as a higher content of soluble sugars (16. 69％), vitamin C (0.35 mg/g) and free amino acids (41.11 μg/g). Two principal components were extracted in the principal component analysis, with a cu-mulative variance contribution rate of 85.635％. The comprehensive evaluation of O'Neal was the highest, making it the best variety suitable for introduction and cultivation, and also the best variety as a breeding material.
关键词
蓝莓/引种栽培/果实/外观指标/营养成分/主成分分析/丽江
Key words
Blueberries/Introduction and cultivation/Fruit/Appearance indicators/Nutrient composition/Principal component analysis/Lijiang
维普
万方数据