Effect of La(Ⅲ)-AA with Different Application Techniques on Physiological Indexes of Oryza sativa L. Seedling under Acid Rain Stress

被引：0

作者：

Xie E. ^{[1
,2
]}

Zheng Y. ^{[1
]}

Feng M. ^{[1
]}

Lu M. ^{[1
]}

Qian J. ^{[1
]}

Wang X. ^{[1
]}

Wu W. ^{[1
]}

Zhang H. ^{[1
]}

Zhou T. ^{[1
]}

Zhu H. ^{[1
]}

Chen J. ^{[1
]}

Jin J. ^{[1
]}

机构：

[1] School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou

[2] Gen Chim Testing Technology（Shanghai）Co.，Ltd., Shanghai

来源：

Zhongguo Xitu Xuebao/Journal of the Chinese Rare Earth Society | 2024年 / 42卷 / 02期

关键词：

acid rain stress; foliar spraying; La（Ⅲ）-AA; Oryza sativa L.. seedlings; physiological indicators; root irrigation;

D O I：

10.11785/S1000-4343.20240218

中图分类号：

学科分类号：

摘要：

Acid rain affects crops in agro-ecosystem，which is critical to food security. It is of great significance to investigate the effects of different application techniques（Foliar spray application/Root irrigation application）of new amino acid chelate lanthanum（La（Ⅲ）-AA）（the application concentration is 20 mg·L-1）on physiologi⁃ cal indexes and stress resistance of crop seedlings under acid rain stress. In this research，the pot experiment method for simulating acid rain pollution was adopted，and the plants were treated with two application modes：foliar spray and root irrigation. Samples were collected every 5 days to detect the changes of 8 physiological in⁃ dexes in Oryza sativa L. seedling stage under different application methods. The results show that the two applica⁃ tion methods of La（Ⅲ）-AA can effectively reduce the effects of acid rain on plasma membrane permeability，su⁃ peroxide anion radical production rate，malondialdehyde content，proline content，and increase catalase activity，peroxidase activity，chlorophyll content and nitrogen metabolism intensity. Comparatively，foliar spray applica⁃ tion has a more rapid effect on plasma membrane permeability and chlorophyll content，while root irrigation ap⁃ plication can better promote plant antioxidant enzyme activity and effectively improve plant stress resistance. In conclusion，the two application methods of La La（Ⅲ）-AA can promote the growth and development of Oryza sati⁃ va L. seedlings；the foliar spray method can provide excellent protection effect for crops and is more suitable for dealing with acute acid rain damage，while the root irrigation method can effectively enhance the stress resis⁃ tance of plants to deal with long-term acid rain damage. Therefore，rational application of lanthanum chelate can not only reduce the damage of acid rain pollution to crops，but also promote the growth and development of crops. © 2024 Editorial Office of Chinese Rare Earths. All rights reserved.

引用

页码：349 / 359

页数：10

共 40 条

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