摘要
为进一步明确不同皮色梨品种果实色素、内在品质成分的变化特性,以褐皮梨新品系玉冠与绿皮梨品种翠冠为试材,测定了果实发育进程中纵横径、果皮与果肉色素含量的动态变化,以及在成熟至采收期间,可滴定酸、可溶性固形物、糖含量的变化特性。结果显示,2品种果实发育均呈"S"型曲线动态变化,果皮与果肉总叶绿素与类胡萝卜素含量及在测定期间的动态变化规律亦无显著差异。在成熟前14d至采收,果实生长趋缓,糖、酸含量急剧变化,2品种表现出各自特点,生产上应针对不同品种的内在品质形成特性,适期采收。
In order to further study the mechanisms of the formation of pear fruit skin color and quality, russet and green fruit cultivars （Yuguan and Cuiguan, both belonging to Pyrus pyrifolia Nakai） were used to regularly investigate the dynamics of fruit vertical and horizontal diameter, pigments content in peel and pulp, titratable acidity, soluble solids content, and sugar contents during fruit development. The results showed that the development of fruit size of 2 cuhivars presented ＂S＂ curve; no significant differences were found between russet and green pear fruit in pigments contents in peel and pulp. It was found that at the pre-harvest stage （14-23 days before harvest）, the contents of titratable acid, soluble solids, pigments, and sugars, including glucose, sucrose and sorbitol, were changed tremendously in both cuhivars. So the suitable picking time for each cuhivar should be based on the fruit maturity characteristics.
出处
《果树学报》
CAS
CSCD
北大核心
2007年第6期833-836,共4页
Journal of Fruit Science
基金
浙江省科技厅重点项目(2006C22085)
关键词
梨
果实皮色
可滴定酸
可溶性固形物
糖含量
Pear
Fruit skin color
Titratable acidity
Soluble solids content
Sugar content
