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9.0g·L-1)和CaCl2(2.0、4.0和8.0g·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处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。
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.
出处
《园艺学报》
CAS
CSCD
北大核心
2010年第2期229-234,共6页
Acta Horticulturae Sinica
基金
‘十一五’国家科技支撑计划项目(2007BAD79B01)
新疆建设兵团博士资金项目
关键词
加工番茄
果皮
显微结构
外源钙
外源钠
processing tomato
pericarp
microstructure
exogenous calcium
exogenous sodium
