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园艺学报 ›› 2010, Vol. 37 ›› Issue (2): 229-234.

• 蔬菜 • 上一篇    下一篇

加工番茄果面喷施CaCl2和NaCl对果皮显微结构的影响

关志华;程智慧   

  1. 1西北农林科技大学园艺学院,陕西杨凌712100;2西藏农牧学院植物科学技术系,西藏林芝 860000)
  • 收稿日期:2009-07-31 修回日期:2009-12-28 出版日期:2010-02-25 发布日期:2010-02-25
  • 通讯作者: 程智慧

GUAN Zhi-hua;CHENG Zhi-hui   

  1. (1College of Horticulture, Northwest A & F University, Yangling, Shaanxi 712100, China;2Plant Sci-Tech Department of Tibet Agricultural and Animal Husbandry College, Linzhi, Tibet 860000, China)
  • Received:2009-07-31 Revised:2009-12-28 Online:2010-02-25 Published:2010-02-25

摘要: 以加工番茄品种‘里格尔87-5’和‘石红12’为材料,研究了果实发育期果(叶)面喷施低、中、高浓度NaCl(3.0、6.0和9.0 g·L-1)和CaCl2(2.0、4.0和8.0 g·L-1)对果皮显微结构的影响。结果表明:对‘里格尔87-5’品种,中浓度CaCl2处理使外果皮细胞层数显著增加,不同浓度CaCl2和低浓度NaCl处理均不同程度地延缓细胞间隙的增大,低、中浓度NaCl和CaCl2处理使外果皮厚度和外果皮外侧细胞壁厚度增加;对‘石红12’品种,高浓度CaCl2理使外果皮细胞层数显著增加,中浓度CaCl2处理使外果皮外侧细胞壁厚度增加,并延缓细胞间隙的增大,低浓度NaCl处理亦能延缓细胞间隙的增大,低、中浓度NaCl和CaCl2处理使外果皮厚度增加,高浓度NaCl处理显著减小外果皮外侧细胞壁厚度,但增加中果皮维管束数量。综合分析认为,在果实发育期间果(叶)面喷施低、中浓度的NaCl和CaCl2可以改善加工番茄果皮结构,有利于提高采后果实的耐贮运性。

关键词: 加工番茄, 果皮, 显微结构, 外源钙, 外源钠

Abstract: The effects of foliage application of lower, middle and higher concentration of CaCl2(2.0, 4.0 and 8.0 g·L-1) and NaCl (3.0, 6.0 and 9.0 g·L-1) during fruit development on fruit pericarp microstructure of processing tomato ‘Ligeer 87-5’and ‘Shihong 12’were studied. The results showed that, for Ligeer 87-5, middle concentration of CaCl2 significantly increased the cell layers of pericarp, different concentration of CaCl2 and lower concentration of NaCl delayed the cell cavity enlargement by different degree, and lower and middle concentration of NaCl and CaCl2 increased pericarp thickness and its outside cell wall thickness. For Shihong 12, higher concentration of CaCl2 significantly increased the cell layers of pericarp, middle concentration of CaCl2 increased the outside cell wall thickness of pericarp and delayed the cell cavity enlargement, lower concentration of NaCl delayed the cell cavity enlargement also, lower and middle concentration of NaCl and CaCl2 increased pericarp thickness, and higher concentration of NaCl significantly decreased the outside cell wall thickness of pericarp but increased the number of vascular bundle of middle pericarp. In summary, foliage application of lower and middle concentration of NaCl and CaCl2 during fruit development is thought practical to improve fruit pericarp structure which may benefit the transportation and storage of postharvest processing tomato.

Key words: processing tomato, pericarp, microstructure, exogenous calcium, exogenous sodium

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