干旱胁迫条件下喷施吡咯喹啉醌对辣椒生理响应研究

李　鑫 1; 2; 李雪峰 1; 马艳青 1; 张清壮 1; 唐艺欣 1; 肖　鑫 3; 曾建国 4

文章摘要

李　鑫 1，2，李雪峰 1 ，马艳青 1 ，张清壮 1 ，唐艺欣 1 ，肖　鑫 3，曾建国 4.干旱胁迫条件下喷施吡咯喹啉醌对辣椒生理响应研究[J].广东农业科学,2019,46(9):40-46

查看全文 HTML 干旱胁迫条件下喷施吡咯喹啉醌对辣椒生理响应研究

Effects of Spraying Pyrrolidine Quinoline Quinone on thePhysiological Responses of Pepper under Drought Stress

DOI：10.16768/j.issn.1004-874X.2019.09.006

中文关键词: 辣椒水分胁迫吡咯喹啉醌生长生理生化

英文关键词: pepper water stress pyrrolidine quinoline quinone growth physiological and biochemical

基金项目:国家重点研发计划项目（2018YFD02012081-2）；湖南省重点研发计划项目（S2018NCYFNY0107）；湖南省农业科技创新资金（2018QN10）

作者	单位
李　鑫 1，2，李雪峰 1 ，马艳青 1 ，张清壮 1 ，唐艺欣 1 ，肖　鑫 3，曾建国 4	1. 湖南省蔬菜研究所，湖南长沙 410128；2. 湖南省农业科学院，湖南长沙 410128； 3. 汉寿县农业农村局蔬菜管理办公室，湖南汉寿 415900；4. 湖南农业大学园艺学院，湖南长沙 410128

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中文摘要:

【目的】探明吡咯喹啉醌对辣椒生长及干旱生理生化的影响。【方法】采用盆栽方式，研究不同水分条件下吡咯喹啉醌对辣椒农艺性状、脯氨酸、叶绿素、可溶性糖、丙二醛、抗氧化酶、光合特性及辣椒品质的影响。【结果】干旱胁迫下喷施低浓度（0~500 nmol/L）吡咯喹啉醌对辣椒抗旱有一定的促进作用，有效抑制了叶绿素、可溶性蛋白质含量的下降，协同增加脯氨酸和可溶性糖含量，抗氧化酶活性显著增加，膜脂过氧化程度减弱，光合特性增强，其中 200 nmol/L 处理植株的净光合速率较 0 nmol/L 处理提高 130.89%，果实品质得到部分改善；喷施高浓度（1 000 nmol/L）吡咯喹啉醌抑制辣椒生长；在 200 nmol/L 浓度时最有利于辣椒的抗旱和生长。【结论】辣椒实际生产过程中，建议在干旱或半干旱辣椒种植区喷施 200 nmol/L 吡咯喹啉醌溶液。

英文摘要:

【Objective】The objective was to study the effects of pyrrolidine quinoline quinone on the growth and physiological responses of pepper under drought stress.【Method】By taking pot culture method, the effects of pyrroquinolinone quinone on the agronomic characters, proline, chlorophyll, soluble sugar, malondialdehyde, oxidase, photosynthetic characteristics and quality of pepper under different water conditions were studied.【Result】The results showed that low concentration (0-500 nmol/L) pyrrolidine quinoline quinine sprayed under drought stress had a certain effect on the drought resistance of pepper. It effectively inhibited the decrease of chlorophyll and soluble protein content, increased the content of proline and soluble sugar content. Antioxidant enzyme activity increased significantly, the degree of membrane lipid peroxidation decreased, and the photosynthetic characteristics enhanced. The net photosynthetic rate of 200 nmol/ L treatment increased by 130.89% compared with that of 0 nmol/L, and the fruit quality was partially improved. Spraying high concentration (1 000 nmol/L) pyrrolidone quinoline quinine inhibited pepper growth, and 200 nmol/L treatment was the most conducive to the drought resistance and growth of pepper.【Conclusion】In the actual production of pepper, it is recommended to spray the pyrrolidone quinoline quinone solution with a concentration of 200 nmol/L in the arid or semi-arid pepper planting areas.

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