Open Access
ARTICLE
Effects of Different Vermicompost Rates on Growth, 2-Acetyl-1-Pyrroline, Photosynthesis and Antioxidant Responses of Fragrant Rice (Oryza sativa L.) Seedling
Shaoyi Ruan1,2,3,#, Haowen Luo1,2,3,#, Xiaoyan Zeng1,2,3,#, Runhao Wen1,2,3, Feida Wu1,2,3, Xiangru Tang1,2.*
1
State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, South China Agricultural University, Guangzhou, 510642, China
2
Scientific Observing and Experimental Station of Crop Cultivation in South China, Ministry of Agriculture and Rural Affairs, Guangzhou, 510642, China
3
Guangzhou Key Laboratory for Science and Technology of Fragrant Rice, Guangzhou, 510642, China
* Corresponding Author: Xiangru Tang. Email:
# These authors contributed equally to the work
Phyton-International Journal of Experimental Botany 2021, 90(4), 1273-1283. https://doi.org/10.32604/phyton.2021.015610
Received 31 December 2020; Accepted 18 January 2021; Issue published 27 April 2021
Abstract
Vermicompost is an organic fertilizer contains multiple nutrient elements. However, the application of vermicompost in fragrant rice production is rarely reported. In order to study the effects of vermicompost application on
fragrant rice (
Oryza sativa L.) seedling performances, present study was conducted with two fragrant rice cultivars
and four vermicompost rate treatments (0 (CK), 2.5 (Wo1), 5.0 (Wo2) and 10.0 (Wo3) g kg
−1
). The results
showed that vermicompost treatments significantly increased dry weight of fragrant rice seedling by 8.31–32.56%
compared with CK. 21.10–59.13% higher net photosynthetic rates and 10.66–59.16% higher chlorophyll contents
(chlorophyll a, chlorophyll b and total chlorophyll) were recorded in vermicompost treatments than CK. Application of vermicompost also significantly increased 2-acetyl-1-pyrroline (2-AP, the key compound of fragrant rice aroma) content and reduced the transcript level of gene BADH2 which related to 2-AP biosynthesis in fragrant rice
seedling. Moreover, compared with CK, vermicompost treatments enhanced activities of superoxide dismutase, peroxidase, catalase by 24.42–28.66%, 24.98–25.73% and 22.45–23.57%, respectively. 11.54–40.53% lower malonaldehyde contents were recorded in vermicompost treatments in related to CK. In conclusion, vermicompost
improved growth, increased 2-AP content and might enhance stress resistant of fragrant rice seedling.
Keywords
Cite This Article
APA Style
Ruan, S., Luo, H., Zeng, X., Wen, R., Wu, F. et al. (2021). Effects of different vermicompost rates on growth, 2-acetyl-1-pyrroline, photosynthesis and antioxidant responses of fragrant rice (oryza sativa L.) seedling. Phyton-International Journal of Experimental Botany, 90(4), 1273-1283. https://doi.org/10.32604/phyton.2021.015610
Vancouver Style
Ruan S, Luo H, Zeng X, Wen R, Wu F, Tang X. Effects of different vermicompost rates on growth, 2-acetyl-1-pyrroline, photosynthesis and antioxidant responses of fragrant rice (oryza sativa L.) seedling. Phyton-Int J Exp Bot. 2021;90(4):1273-1283 https://doi.org/10.32604/phyton.2021.015610
IEEE Style
S. Ruan, H. Luo, X. Zeng, R. Wen, F. Wu, and X. Tang "Effects of Different Vermicompost Rates on Growth, 2-Acetyl-1-Pyrroline, Photosynthesis and Antioxidant Responses of Fragrant Rice (Oryza sativa L.) Seedling," Phyton-Int. J. Exp. Bot., vol. 90, no. 4, pp. 1273-1283. 2021. https://doi.org/10.32604/phyton.2021.015610
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