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Method for improving alkali resistance and iron content of rice

A technology of iron content and rice, which is applied in rice cultivation, botany equipment and methods, chemicals for biological control, etc., can solve problems affecting the normal growth and death of crops, and achieve the purpose of enhancing rice's alkali resistance and improving iron Element content, effect of increasing rice biomass and yield

Inactive Publication Date: 2019-06-28
HUNAN AGRICULTURAL UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

According to statistics, more than 30% of the cultivated soils in the world have been subjected to alkali stress, which seriously affects the normal growth of crops and even leads to death.

Method used

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  • Method for improving alkali resistance and iron content of rice
  • Method for improving alkali resistance and iron content of rice
  • Method for improving alkali resistance and iron content of rice

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Embodiment

[0028] A method for enhancing rice alkali tolerance and improving iron content in rice of the present invention, comprising the steps of:

[0029] The first step: rice seed germination and seedling cultivation

[0030] Place the rice seeds in 0.68% nitric acid by volume to break dormancy for 18 hours, then place them in water until they become white, suspend the seedling-raising orifice plate on the nutrient solution in a black container, the pH value of the nutrient solution is 5.8, and germinate the white seeds The obtained rice seeds are sowed on the seedling-raising orifice plate, placed in an incubator for cultivation, and the culture solution is replaced every 3 days to obtain rice seedlings.

[0031] The black container is a plastic pot with a length of 20 cm, a width of 10 cm, and a height of 5 cm. Four 96 seedling orifice plates (12 horizontal rows and 8 vertical rows) can be placed on it, and one rice seed is sown in each hole, and the bottom of each hole is cut off....

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Abstract

The invention discloses a method for improving the alkali resistance and the iron content of rice. The method comprises the following steps of culturing rice seedlings, placing the cultured rice seedlings into a culture pond containing alkali nutrient solution, and meanwhile, adding sodium nitroprusside and pyrazinamide into the culture pond and keeping the concentration of both the sodium nitroprusside and the pyrazinamide at 10-50 mu mol*L<-1>. The method for improving the alkali resistance and the iron content of the rice takes the sodium nitroprusside and the pyrazinamide as exogenous cropgrowth regulator to effectively root growth inhibition and overground part withering which are caused by an alkaline stress environment, significantly improve the alkali resistance of the rice, increase the iron content of the rice and finally increase the biomass and yield of the rice, thereby laying a foundation for research on the adaptive mechanism of the rice under saline-alkali stress.

Description

technical field [0001] The invention belongs to the field of rice planting, and in particular relates to a method for enhancing the alkali resistance of rice and increasing the iron content in rice. Background technique [0002] Rice is the most widely planted area in the world and one of the most important food crops for human beings, providing rations for more than 60% of the world's population. The salinization of agricultural soil is becoming more and more serious, which has become one of the most important issues in modern agriculture. According to statistics, more than 30% of the cultivated soils in the world have been subjected to alkali stress, seriously affecting the normal growth of crops, and even leading to death. High pH causes plant growth inhibition, root elongation retardation, photosynthesis weakening, and cell membrane damage. In particular, rice is sensitive to the pH environment of growth. Even under slightly alkaline (over 7.5) conditions, its growth w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/22A01G13/00A01N59/16A01N43/60A01P21/00
Inventor 张振华陈海飞段美娟杨勇
Owner HUNAN AGRICULTURAL UNIV
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