| 营养液EC值对无土栽培番茄果实发育及蔗糖代谢的影响 |
| |
| 引用本文： | 鲁少尉,齐飞,李天来,姜晶.营养液EC值对无土栽培番茄果实发育及蔗糖代谢的影响[J].北方园艺,2012(19):8-11. |
| |
| 作者姓名： | 鲁少尉 齐飞 李天来 姜晶 |
| |
| 作者单位： | 农业部规划设计研究院设施农业研究所,北京,100125;沈阳农业大学园艺学院,辽宁省设施园艺重点实验室,辽宁沈阳110866 |
| |
| 基金项目： | 国家公益性行业(农业)科研专项资助项目(200903009);国家“十一五”科技支撑计划资助项目(2006BAD07B04) |
| |
| 摘 要： | 以番茄栽培品种‘辽园多丽’为试材,在果实发育期通过添加不同浓度的NaCl来提高营养液的EC值,研究高EC值管理对水培番茄果实产量、品质及蔗糖代谢的影响。结果表明:3个高EC值处理都提高了成熟果实中可溶性糖、有机酸和维生素C含量,而且随着EC值的增加这种提高越明显。进一步的分析发现,随着营养液EC值的提高,番茄果实各部位己糖(果糖+葡萄糖)含量增加,蔗糖转化酶(酸性转化酶+中性转化酶)活性增强,而且己糖含量的增加和转化酶活性的增强主要发生在花后40～60d。以上结果表明:果实发育期高EC值管理下番茄果实可溶性糖含量的提高是由于蔗糖转化酶活性的增强引起的;在该试验中EC值1.25→2.5→3.8→5.2的处理果实的品质提高最多,干物重损失最少。
|
| 关 键 词： | EC值 NaCl 蔗糖代谢 番茄 果实品质 |
Effects of Tomato Fruit Development and Sucrose Metabolism by Improving the Conductivity of Nutrient Solution in Soilless Culture |
| |
| LU Shao-wei
,
QI Fei
,
LI Tian-lai
,
JIANG Jing.Effects of Tomato Fruit Development and Sucrose Metabolism by Improving the Conductivity of Nutrient Solution in Soilless Culture[J].Northern Horticulture,2012(19):8-11. |
| |
| Authors: | LU Shao-wei QI Fei LI Tian-lai JIANG Jing |
| |
| Institution: | 1.Institute of Facility Agriculture,Chinese Academy of Agricultural Engineering,Beijing 100125;2.College of Horticulture,Shenyang Agricultural University,Key Laboratory of Protected Horticulture of Liaoning Province,Shenyang,Liaoning 110866) |
| |
| Abstract: | Taking tomato cultivar ‘Liaoyuan Duoli’as material,the EC value of the nutrient solution was improved by adding different concentrations of NaCl in the fruit development period,and the effect of high EC on the fruit yield,quality and sucrose metabolism of tomato in water culture were studied.The results showed that 3high EC treatments increased soluble sugar,organic acids and vitamin C content in mature fruit,and higher EC more obvious.With the improvement of EC value in nutrient solution,hexose(fructose+glucose) content in every part of tomato increased,invertase(acid invertase+neutral converting enzyme) activity enhanced,hexose content and invertase activity increased mainly in 40～60days after flowering.The above suggested that the increase of soluble sugar content of tomato in fruit development period under high EC management was due to enhancement of sucrose conbersion enzyme activity;the fruit quality improved the most,and dry matter weight lost the minimum under EC value treatment from 1.25,2.5,3.8to 5.2in this experiment. |
| |
| Keywords: | conductivity NaCl sucrose metabolism tomato fruit quality |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
