Optimization of the adaptive mechanism of subtropical crops under the influence of innovative forms of fertilizers

O. S. Belous, Marina Vasileyko, Angelina Lagoshina,Nataliia Platonova

E3S web of conferences(2021)

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摘要
The research is aimed at developing effective ways to regulate the functional state of plants under stress. It is shown that the functional state of tea and mandarin plants is more favorable under the influence of growth regulators (humic and amino acids, metabolites of mold fungi are used as biologically active substances). In the variants with foliar treatments, there is an increase in bound water (up to 54.8-54.9%); activation of assimilant synthesis, more active formation of proline and ascorbic acid in tea leaves. There was an increase in the number of carotenoids (up to 1.78 mg / g) and active synthesis of ascorbic acid in mandarin leaves during stressful periods; the value of the viability index increased (up to 5.19 – 5.33 units) in accordance with the control (4.37 umits). The developed specific surface density of the leaf provides greater productivity of mandarin plants. The optimal functional state of the plants led to an increase in the crop productivity of tea leaves (22.88-32.22 c/ha compared to the control-22.04-26.88 c/ha) and mandarin fruits (6.83 kg/tree compared to the control – 3.80 kg / tree). The use of innovative forms of fertilizers and plant growth regulators should become the main element of the technology of cultivation of subtropical crops, optimizing the adaptive potential, regulating the effective productivity of plants and their quality indicators.
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关键词
subtropical crops,adaptive mechanism
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