| 引用本文: | 岳焕芳,安顺伟,王克武,等.化学抗旱物对限根栽培番茄生长、抗性生理及品质的影响[J].灌溉排水学报,0,():-. |
| Yue Huanfang,An Shunwei,Wang Kewu,et al.化学抗旱物对限根栽培番茄生长、抗性生理及品质的影响[J].灌溉排水学报,0,():-. |
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| 化学抗旱物对限根栽培番茄生长、抗性生理及品质的影响 |
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岳焕芳, 安顺伟, 王克武, 孟范玉, 胡潇怡, 王志平
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北京市农业技术推广站
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| 摘要: |
| 【目的】为了提高作物抗旱能力，筛选蔬菜适用的化学抗旱物质，研究不同抗旱物质在设施蔬菜上的应用效果。【方法】以番茄作为试验对象，在结果期共进行3次叶面喷施，对比3种化学抗旱物质：薄膜型抗蒸腾剂、代谢型抗蒸腾剂、24-表芸苔素内酯的使用效果，以清水喷施作为对照，研究了化学抗旱物对番茄株高、茎粗等生长指标，产量和品质，以及SOD、MDA和脯氨酸等抗旱调控物质的影响。【结果】试验结果表明：3个处理的番茄茎粗整个生育期平均比CK提高了9.17%，10.73%和22.09%；2,4表芸苔素内酯和代谢型抗蒸腾剂的SPAD值整个生育期大于其他处理，2,4表芸苔素内酯的SPAD值整个生育期比CK平均提高了4.7%；在生长后期2,4表芸苔素内酯处理的番茄植株萎蔫指数比CK低9%；2,4表芸苔素内酯处理的SOD含量为4.59 U?/g-1，高于其他处理；3个处理的16种氨基酸总含量分别比CK提高了60.7%，58.9%和58.9%，脯氨酸含量分别比CK提高了133.3%，133.3%和130%。代谢型抗蒸腾剂和2,4表芸苔素内酯单株产量分别比CK提高了5.4%和18.5%，番茄果实可溶性总糖含量分别比CK分别提高了0.66和0.92个百分点。【结论】综合分析，2,4表芸苔素内酯和代谢型抗蒸腾剂效果最佳，在结果期叶面喷施3次，可以显著提高番茄的抗旱能力。 |
| 关键词: 薄膜型抗蒸腾剂；代谢型抗蒸腾剂；24-表芸苔素内酯；限根栽培；番茄 |
| DOI： |
| 分类号:S641.2 S365 |
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| Influence of the chemical drought resistance on growth, resistance and quality of root-limited cultivation tomato |
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Yue Huanfang, An Shunwei, Wang Kewu, Meng Fanyu, Hu Xiaoyi, Wang Zhiping
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Beijing Agriculture Technology Extension Station
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| Abstract: |
| 【Objective】With the development of standard of living, the demand for high-quality vegetables is gradually increasing. In order to improve the quality of tomato, deficit irrigation technology is used to provide drought environment for tomato, increase the content of soluble substances in the fruit, and improve taste of the fruit. At the same time, in order to reduce the impact of drought stress on yield, achieve maximum economic efficiency, spray drought resistant materials on the leaves, slow down the wilting degree of leaves, improve the drought resistance ability of crops, and improve the quality of fruit and yield. At present, anti-transpiration and plant growth regulators are widely used. anti-transpiration mainly include three types: film-forming anti-transpiration; metabolic anti-transpiration, reflective anti-transpiration. Brassinolide is internationally recognized as the sixth most efficient, broad-spectrum and non-toxic plant hormone, it is the important regulator of plant, as "adversity alleviation hormone". At present, the research of Chemical Drought Resistant substances mainly focuses on the research, development of new substances, and the selection of dosage and method, there are few comparisons between different types of substances. Lack of research results in the growth period of vegetables.The aim of this study was to improve the drought resistance ability of crops, to select the suitable chemical drought resistant substances for vegetables, and to investigate the effects of different drought resistant substances. 【Method】The experiment was carried out in Miyun District of Beijing. The irrigation amount was reduced and the deficit irrigation was carried out in the fruit period of tomato. Three kinds of anti transpiration products were sprayed on the leaves in the fruit period. The experiment examined the impact of chemical drought resistance on tomatoes, the leaf surface was sprayed with film-forming anti-transpiration, metabolic anti-transpiration 24-epbrassinolide, and the control was sprayed with water experimental, three times of foliar spraying were carried out over its growing season.During the experiment, we measured the growth indexes, yield and fruit quality of the tomato. Effects of drought resistant regulating substances such as SOD、MDA and Pro were studied, too. The anti-transpiration products suitable for tomato were screened out.【Result】Results showed that spraying 24-epbrassinolide and metabolic anti-transpiration on the leaves could improve wilting and promote the growth of tomato plants under drought stress, The average stem diameter increased by 9.17%, 10.73%, 22.09%, respectively. The SPAD were higher than those of other treatments of 2,4-epbrassinolide and metabolic anti-transpiration in the whole growth period , and SPAD value increased by 4.7% of 2,4-epbrassinolide, and the wilting index increased by 9% compared to the CK. SOD content of 2,4-epibrassinolide was 4.59 U·g-1, higher than all of other treatments. The contents of sixteen kinds of amino acids increased by 60.7%, 58.9% and 58.9%, respectively. Increasing the contents of Pro by 133.3%, 133.3% and 130% than CK respectively.The total soluble sugar content of tomato increased by 0.66% and 0.92% respectively of metabolic anti-transpirantion and 2,4-epibrassinolide.【Conclusion】The results above indicated that 24-epbrassinolide and metabolic anti-transpiration can improve the effect of drought resistant cultivation. |
| Key words: Film-forming anti-transpiration; Metabolic anti-transpiration; 24-epbrassinolide; root-limited cultivation;Tomato |
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