A kind of high temperature resistant rice plant growth regulator and its use method and application

Abstract

The invention discloses a high-temperature-resistant rice plant growth regulator and its use method and application, belonging to the field of promoting plant growth. The active ingredients of the regulator include abscisic acid and sucrose. When used, the concentration of the abscisic acid is 1-100 μmol / L, the sucrose accounts for 0.1-2.5% of the total mass of the regulator. The present invention is based on the influence of the interaction between the natural plant hormone abscisic acid and the natural sugar substance sucrose on the grain growth of rice after flowering, and screens the optimum application concentration to significantly reduce the high temperature damage of rice, significantly increase rice yield, and improve rice quality. significantly improved.

Description

technical field [0001] The invention mainly relates to the field of promoting plant growth, in particular to a high temperature resistant rice plant growth regulator and its use method and application. Background technique [0002] In recent years, due to the increase of greenhouse gases caused by human production activities, the global climate is warming, which leads to frequent occurrence of extreme high temperature weather. Taking Zhejiang Province as an example, after the Meiyu period in July every year, it is controlled by the subtropical high pressure for a long period of time after that, and the weather is sunny and hot. If there is no typhoon here, continuous high temperature and summer drought will easily occur. According to statistics, the rice fields in the middle and lower reaches of the Yangtze River basically have extremely high temperature weather with an average maximum temperature greater than 38°C for 5 to 7 days every year from early July to mid-August, an...

AI Technical Summary

Problems solved by technology

The high temperature stress in this period not only seriously inhibits the normal pollination and fruiting of early rice at the flowering stage, but also seriously affects the accumulation of starch and other carbohydrates in the early rice grains, inhibits the proliferation of endosperm cells and the process of filling and filling, and ultimately is not conducive to the formation of yield and rice quality.

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