Author:
Tian Shi-Lin,Khan Abid,Zheng Wen-Na,Song Li,Liu Jun-He,Wang Xiao-Qian,Li Li
Abstract
AbstractThe long-term application of chemical fertilizers has caused to the farmland soil compaction, water pollution, and reduced the quality of vegetable to some extent. So, its become a trend in agriculture to find new bio-fertilizers. Chlorella extract is rich in amino acids, peptides, nucleic acids, growth hormones, potassium, calcium, magnesium, iron, zinc ions, vitamin E, B1, B2, C, B6, folic acid, free biotin and chlorophyll. Chlorella extract can promote biological growth, mainly by stimulating the speed of cell division, thereby accelerating the proliferation rate of cells and playing a role in promoting plant growth. Whether Chlorella extract can be used to improve the growth of pepper (Capsicum annuum), needs to be verified. In current study, a pepper variety 'Chao Tian Jiao' was used as experiment material, by determining the changes of the related characteristics after spraying the seedlings with Chlorella extract, and its effect on growth of Capsicum annuum plants was investigated. The results showed that the Chlorella extract significantly increased plant height of pepper seedlings (treatment: 32.2 ± 0.3 cm; control: 24.2 ± 0.2 cm), stem diameter (treatment: 0.57 ± 0.02 cm; control: 0.41 ± 0.03 cm) and leaf area (treatment: 189.6 ± 3.2 cm2; control: 145.8 ± 2.5 cm2). Particularly, the pepper seedlings treated with Chlorella extract, developed the root system in better way, significantly increased the chlorophyll a, and the activities of SOD, POD and CAT enzymes were also improved significantly. Based on our results, we can speculate that it is possible to improve the growth of Capsicum annuum seedlings and reduce the application of chemical fertilizers in pepper production by using Chlorella extract.
Funder
Henan Province Natural Science Foundation
the Innovation Scientists and Technicians Troop Construction Projects of Henan Province
The Zhumadian International Joint Laboratory of Pepper Modern Breeding
Publisher
Springer Science and Business Media LLC
Reference34 articles.
1. Deli, J., Matus, Z. & Tóth, G. Carotenoid composition in the fruits of asparagus officinalis. J. Agric. Food Chem. 48, 2793–2796 (2000).
2. Howard, L. R., Talcott, S. T., Brenes, C. H. & Villalon, B. Changes in phytochemical and antioxidant activity of selected pepper cultivars (Capsicum species) as influenced by maturity. J. Agric. Food Chem. 48, 1713–1720 (2000).
3. Odgerel, B. & Tserendulam, D. Effect of Chlorella as a biofertilizer on germination of wheat and barley grains. P. Mongolian Acad. Sci. 56(4), 26–31 (2016).
4. Sun, R. B., Guo, X. S., Wang, D. Z. & Chua, H. Y. Effects of long-term application of chemical and organic fertilizers on the abundance of microbial communities involved in the nitrogen cycle. Appl. Soil Ecol. 95(6), 171–178 (2015).
5. Yu, Y. Q., Luo, Z. B., Fu, H. & Jin, Y. Effect of balanced nutrient fertilizer: A case study in Pinggu District, Beijing China. Sci. Total Environ. 754, 1–8 (2021).