中国农业科学 ›› 2012, Vol. 45 ›› Issue (15): 3115-3123.doi: 10.3864/j.issn.0578-1752.2012.15.013

• 园艺 • 上一篇    下一篇

‘幸香’草莓白肉突变体与野生型的生物学特性和品质比较

 梁烨, 李贺, 马跃, 曹飞, 豆玉娟, 张志宏   

  1. 沈阳农业大学园艺学院,沈阳 110866
  • 收稿日期:2012-04-11 出版日期:2012-08-01 发布日期:2012-05-24
  • 通讯作者: 通信作者张志宏,Tel:024-88487143;E-mail:zhangz@syau.edu.cn
  • 作者简介:梁 烨,E-mail:aptx4869ly@163.com
  • 基金资助:

    国家公益性行业(农业)科研专项(201003064)

Comparative Analysis of Biological Characteristics and Quality in a White-Flesh Strawberry Mutant ‘Sachinoka’ and Its Wild Type

 LIANG  Ye, LI  He, MA  Yue, CAO  Fei, DOU  Yu-Juan, ZHANG  Zhi-Hong   

  1. 沈阳农业大学园艺学院,沈阳 110866
  • Received:2012-04-11 Online:2012-08-01 Published:2012-05-24

摘要: 【目的】比较‘幸香’草莓白肉突变体与野生型在生物学特性及果实品质上的差别,为探讨草莓白肉果实形成原因,以及进一步揭示草莓果实品质形成机理奠定基础。【方法】以‘幸香’草莓白肉突变体及野生型植株为试材,记录物候期,调查植株形态指标,测定光合特性,统计产量,测定糖含量、花色素苷含量、香气等果实品质相关指标,分析白肉突变体与野生型在各项指标上的差异。【结果】白肉突变体与野生型在物候期上相近;白肉突变体的叶片数显著低于野生型,而中间小叶的叶面积大于野生型,二者的单株总叶面积和光合特性相关指标差异不显著;在红熟期,白肉突变体果肉中花色素苷含量仅是野生型中的13.7%,而白肉突变体可溶性总糖含量显著高于野生型;白肉突变体果实中酯类物质含量高于野生型,在粉熟期,突变体果实中橙花叔醇和沉香醇的含量分别是野生型的40.8倍和3.1倍。【结论】‘幸香’草莓白肉突变体果实中花色素苷含量比野生型大幅度减少,同时糖含量和香气物质含量增加,但是,突变体与野生型的单株总叶面积和光合特性没有明显差异。

关键词: 草莓, 幸香, 突变体, 白肉, 含糖量, 香气

Abstract: 【Objective】 The difference in biological characteristics and quality between the white-flesh mutant of strawberry cultivar Sachinoka and its wild type was investigated. The aim of this study is to give hints to find the causes of strawberry white-flesh formation, and to lay a foundation for elucidating the formation mechanism of strawberry fruit quality in the future. 【Method】The white-flesh mutant of strawberry cultivar (Fragaria × ananassa Duch.) ‘Sachinoka’ and its wild type were used as the materials in this experiment. The phenological phases were recorded, the characteristics of plant morphology were investigated, the indicators of photosynthetic activity were tested, the yield was measured, and the indicators of fruit quality, such as contents of sugar, anthocyanin and fragrance were tested. The differences of white-flesh mutant and wild type in investigated traits were analyzed. 【Result】The white-flesh mutant and wild type had similar phenological phases. The leaf number of white-flesh mutant was significantly less than that of wild type, but the area of the middle leaflet of mutant was larger than that of wild type, and there were no significant differences between mutant and wild type in the leaf area of whole plant and the indicators of photosynthetic activity. At the full-red stage of fruit, the content of anthocyanin in flesh of white-flesh mutant was only 13.7% of that of wild type, and total soluble sugar content of white-flesh mutant was significantly higher than that of wild type. The esters content in white-flesh mutant fruit was higher than that of wild type, and at the pink stage of fruit, the contents of nerolidol and linalool in mutant fruit were 40.8 and 3.1 time as that of wild type. 【Conclusion】The content of anthocyanin in ‘Sachinoka’ white-flesh mutant is much lower than that of wild type, and the contents of sugar and aroma substances increased in mutant. But the leaf area of whole plant and the indicators of photosynthetic activity of mutant has no significant change.

Key words: strawberry, Sachinoka, mutant, white-flesh, sugar content, fragrance