Drought-resistance of Chestnut Seedlings Affected by Foliar Quercetin Spray

ZENG Yangjuan; YU Keyan; JIN Changmin; YU Liyang; ZHANG Jingzheng; CAO Fei

doi:10.19303/j.issn.1008-0384.2024.04.012

Volume 39 Issue 4

Apr. 2024

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Article Navigation > Fujian Journal of Agricultural Sciences > 2024 > 39(4): 475-481

ZENG Y J, YU K Y, JIN C M, et al. Drought-resistance of Chestnut Seedlings Affected by Foliar Quercetin Spray [J]. Fujian Journal of Agricultural Sciences，2024，39（4）：475−481 doi: 10.19303/j.issn.1008-0384.2024.04.012

Citation:

ZENG Y J, YU K Y, JIN C M, et al. Drought-resistance of Chestnut Seedlings Affected by Foliar Quercetin Spray [J]. Fujian Journal of Agricultural Sciences，2024，39（4）：475−481 doi: 10.19303/j.issn.1008-0384.2024.04.012

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Drought-resistance of Chestnut Seedlings Affected by Foliar Quercetin Spray

doi: 10.19303/j.issn.1008-0384.2024.04.012

ZENG Yangjuan^{1, 2
,},
YU Keyan^{1, 2},
JIN Changmin³,
YU Liyang^{2, 4, 5},
ZHANG Jingzheng^{1, 2, 4, 5},
CAO Fei^{1, 2, 4, 5
,
,}

1.
College of Horticulture Science and Technology, Hebei Normal University of Science and Technology, Changli, Hebei　066600, China
2.
Engineering Research Center of Chestnut Industry Technology, Ministry of Education, Qinhuangdao, Hebei　066004, China
3.
College of Agronomy and Biotechnology, Hebei Normal University of Science and Technology, Changli, Hebei　066600, China
4.
Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, Qinhuangdao, Hebei　066004, China
5.
Hebei Collaborative Innovation Center of Chestnut Industry, Qinhuangdao, Hebei　066004, China

Received Date: 2023-12-21
Rev Recd Date: 2024-03-04

Available Online: 2024-05-08

Publish Date: 2024-04-28

Abstract

Abstract

Objective Physiological mechanism and application concentration of foliar quercetin (Q) spray in improving drought resistance of chestnut seedlings were studied. Method In an irrigation-controlled pot experiment, seedlings of Yanbao chestnut (YB) were sprayed Q solutions of concentrations at 600 μmol·L⁻¹ (QD1), 1 200 μmol·L⁻¹ (QD2), 1 800 μmol·L⁻¹ (QD3), 2 000 μmol·L⁻¹ (QD4), and 3 000 μmol·L⁻¹ (QD5), along with one non-spray control under drought (CK1) and another under normal watering condition (CK2). Contents of chlorophyll, malondialdehyde (MDA), and flavonols as well as antioxidant activities of the seedlings were determined. Result The foliar spray of Q significantly elevated the contents of chlorophyll and flavonols as well as the activities of superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) and reduced MDA in the seedling leaves over those under CK1, but not to the levels under CK2. The principal component and membership function analyses showed the average drought resistance of QD1, QD2, QD3, QD4, and QD5 to be 0.735, 0.641, 0.738, 1.389, and 0.828, respectively, indicating a superior treatment effect of 2,000μmol Q·L⁻¹. Conclusion Spraying Q solutions on the chestnut seedlings appeared to mitigate cellular damages induced by drought stress. The treatment raised the antioxidant enzyme activities and chlorophyll content while reduced MDA that retarded cell membrane peroxidation on the leaves with the greatest effect displayed by the application of Q at a concentration of 2 000 μmol·L⁻¹.
- Chestnut,
- quercetin,
- drought stress,
- membership function method

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References(24)

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