Application of 5-hydroxytryptamine in relieving oilseed rape drought stress

Abstract

The invention discloses the application of 5-hydroxytryptamine in relieving oilseed rape drought stress. The application comprises the steps of 1, preparing an aqueous solution of 0.2-1.0 g / L containing 5-hydroxytryptamine, wherein 5-hydroxytryptamine and water are weighed according to the ratio of (0.2:1000)-(1.0:1000), and 5-hydroxytryptamine is dissolved in water; 2, spraying the leaf surfaces of oilseed rape seedlings subjected to drought stress with the aqueous solution once every day in the evening, three days in a row, three times in total, and 50 mL solution is sprayed for each pot each time to make the leaf surfaces of plants evenly wetted; 3, covering soil in each pot and adjacent pots with plastic films during each time of spraying to prevent the solution from being sprayed into soil or onto oilseed rape seedlings in adjacent pots. The method is easy to operate, operability is high, damage of drought stress to oilseed rape seedlings can be relieved, and the drought resistance of oilseed rape is improved remarkably.

Description

technical field [0001] The invention belongs to the technical field of rapeseed production, and more specifically relates to an application of 5-hydroxytryptamine in alleviating drought stress of rapeseed. Background technique [0002] Water shortage is a global problem restricting agricultural development, and its harm ranks first among all abiotic stresses (Bray EA, plant responses to water deficit, trends plant science, 1997, 2: 48-54). Rapeseed is the largest oil crop in my country, and its area and total output account for about 1 / 3 of the world (Fu TD, Yang GS, TuJX, et al, the present and future of rapeseed production in China, proceedings of international symposium on rapeseed science, New York: Science Press Ltd, 2001: 3-5). However, the main rape producing areas in my country are often threatened by drought, resulting in uneven seedling emergence, slow leaf emergence, reduced green leaf area, and short plants, which seriously affect the yield and quality of rapesee...

AI Technical Summary

Problems solved by technology

So far, in the research on plant stress resistance of 5-hydroxytryptamine, it has mainly focused on its participation in the response to stress such as drought, salt damage, and disease resistance (Bowden K, Brown BG, Batty JE5-Hydroxytryptamine: its occurrence in cowhage, Nature 1954, 174:925-926; Byrne, M.E, "Making leaves?" Current Opinion in Plant Biology, 2012, 15(1):24-30), however, how serotonin regulates these stress responses has not yet been clear research

In addition, the research on whether 5-hydroxytryptamine has a relieving effect on plant drought stress is still blank

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