福建枇杷主栽品种果实发育过程糖的积累

Sugar Accumulation in Fruit of Fujian Loquat Cultivars during Development

摘要: 以福建省枇杷主栽品种‘早钟6号’、‘贵妃’、‘解放钟’为材料,研究其果实发育过程中山梨醇、蔗糖、果糖和葡萄糖含量的变化,结果表明:果实缓慢生长期(花后40~80d),三者山梨醇含量均显著高于其他3种糖,并在果实迅速生长期(花后80~140d)快速下降;果实缓慢生长期和迅速生长早期(花后80~110d),蔗糖、果糖和葡萄糖积累缓慢,开花110d后迅速积累,存在明显转折点;果实成熟时,‘早钟6号’蔗糖含量高,‘贵妃’果糖和葡萄糖含量高,‘解放钟’果糖含量高。

Abstract: The content of sorbitol,sucrose,fructose and glucose in loquat were investigated for the cultivars 'Zaozhong 6','Guifei' and 'Jiefangzhong' during fruit development.The results showed that the content of sorbitol was significantly higher than that of sucrose,fructose and glucose for all three loquat cultivars during slow growing period of 40-80 days after full bloom(DAFB),and then decreased fast in speedy growing period(80-140 DAFB).The content of sucrose,fructose and glucose were slowly accumulated during slow growing and early speedy growing phase(80¹10 DAFB),then accumulated rapidly after 110 DAFB with a clear turning point.At maturation,the sugar with high proportion in loquat cultivar for 'Zaozhong 6','Guifei','Jiefangzhong' was as sucrose,fructose and glucose,fructose,respectively.