Novel use of hydrogen sulfide donor sodium hydrosulfide for inducing salt resistance of wheat seed and promoting bud

Abstract

The invention relates to a new use of inducing wheat seeds to resist salt and bud through hydrogen sulfide donor sodium hydrosulfide, in particular to application of using hydrogen sulfide donor sodium hydrosulfide to improve the germination rate of wheat seeds under salt stress. The application can remarkably improve the germination situation of the wheat seeds under salt stress and promote the seeds to germinate fast and tidily. Research shows that the pretreatment of taking sodium hydrosulfide as hydrogen sulfide (H2S) can remarkably improve the activity of amylase, lipase, protease and other hydrolases in the wheat seeds, relieve the oxidative damage of the seeds because of the salt stress, maintain ionic relative balance in the internal microenvironment of the wheat seeds and promote the growth of germs and radicle. The application is single in reagent, easy to get the reagent and simple to operate, and provides a method with important reference value for solving the problem of sowing wheat on widely distributed alkaline land and salinized farmland.

Description

1. Technical field [0001] The present invention relates to a novel use of a known compound, specifically a hydrogen sulfide (H 2 S) The new use of donor sodium hydrosulfide (NaHS) to induce wheat seeds to improve salt resistance and promote germination. 2. Background technology [0002] Soil salinization is a global resource and ecological problem. The global saline soil is widely distributed. According to the data of the Food and Agriculture Organization of the United Nations, its total area is about 9.5×10 8 ha, accounting for 7.26% of the earth's land area, my country is one of the countries that suffer from serious saline soil damage in the world, roughly estimated that the area of ​​saline soil in my country is about 1.0×10 8 ha (Li Yongzhi, 2008), widely distributed in 19 provinces including Liao, Kyrgyzstan, Heilongjiang, Mongolia, and Tibet, has seriously restricted the agricultural production in these areas. [0003] Salt stress damages plants in many ways, includ...

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Problems solved by technology

Hydrogen sulfide (H 2 S) As the third signaling molecule after NO and CO found in animals, it plays an important role in regulating various physio