盐胁迫对小果黑核桃幼苗外部形态和生理变化的影响

doi:10.19640/j.cnki.jtau.2021.04.001

Journal of Tianjin Agricultural University ›› 2021, Vol. 28 ›› Issue (4): 1-5.doi: 10.19640/j.cnki.jtau.2021.04.001

• Researches and Scientific Notes • Next Articles

Effects of salt stress on osmotic regulator and antioxidase activities in Juglans microcarpa seedlings

Liu Hao¹, Wang Qian², Xu Huimin³, He Jiaqi², Li Ai², Gao Ying^{2,Corresponding Author}

1. The Research Institate of Pomology, Tianjin Academy of Agricultural Sciences, Tianjin 300384, China;
2. College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin 300392, China;
3. Luoning County Forestry Bureau, Luoning 471700, Henan Province, China

Received:2020-09-23 Online:2021-12-31 Published:2022-01-05

Abstract

Abstract: In order to research the salt tolerance of walnut rootstocks, so as to provide scientific basis for screening salt-tolerant walnut rootstocks, the seedlings of Juglans microcarpa were treated under salt stress with NaCl and the growth situation of seedlings were observed. The physiological indexes of Juglans microcarpa seedlings were also measured in different days after treatment. The results showed that the walnut leaves were wilted and the leaves became yellow. The leaves become dark until the plants die under high-concentration and long-term salt stress. With the increase of salt concentration and stress time, the activity of POD and SOD increased first and then decreased, the free proline accumulated, and the change trend of soluble protein content was increasing first and then decreasing. It was found that the seedlings of Juglans microcarpa showed tolerance of salt stress with 100 mmol/L NaCl.

Key words: Juglans microcarpa, salt tolerance, antioxidant enzymes, osmoregulation substance

CLC Number:

S664.1

Liu Hao, Wang Qian, Xu Huimin, He Jiaqi, Li Ai, Gao Ying. Effects of salt stress on osmotic regulator and antioxidase activities in Juglans microcarpa seedlings[J]. Journal of Tianjin Agricultural University, 2021, 28(4): 1-5.

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Effects of salt stress on osmotic regulator and antioxidase activities in Juglans microcarpa seedlings

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