不同锥栗无性系果实营养成分的比较分析

Comparison of fruit nutrition components of Castanea henryi clones

为了选育和推广优质高产的锥栗品种,通过对25个不同无性系锥栗Castaneahenryi果实的蛋白质、脂肪、可溶性糖和淀汾等4个营养成分含量的测定后,用方差分析对各个无性系锥栗的营养成分含量进行相关性分析发现:不同无性系间的蛋白质和脂肪含量有极显著差异,可溶性糖含量有显著差异,而淀粉含量和总营养成分含量差异不显著。Q型系统聚类分析结果表明:蛋白质含量在中等以上(150g·kg-1)的有9个无性系,脂肪含量在中等以上(22g·kg-1)的有16个无性系,可溶性糖含量在中等以上(100g·kg-1)的有21个无性系,淀粉含量在中等以上(580g·kg-1)的有11个无性系。根据对营养成分的不同需求,可选择不同的无性系,其中14号无性系的各营养成分都比较高。

To select and promote high-quality and high-yield Castanea henryi,the contents of proteins, fat, soluble sugar and starches of different C. henryi clones, and the difference and correlation coefficient of nutrient components in nuts among clones were studied. The results showed that there were great significant difference in the contents of protein and fat of different clones.The contents of soluble sugar among different clones were significantly different. And there were no significant differences in the contents of starchesand nutrient components among clones. Q-system clustering analysis showed that the contents of proteins of 9 clones were above the medium level (>150 g·kg^(-1));the contents of fat of 16 clones were above the medium level (>22 g·kg^(-1)); the contents of soluble sugar of 21 clones were above the medium level (>100 g·kg^(-1));and the contents of starches of 11 clones were above the medium level (>580 g·kg^(-1)).So the different clones could be selected according to different requirements fornutrition. No.14 clone had the highest contents of all nutrients.