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A method of enhancing crop resistance to environmental abiotic stress

A technology for abiotic stress and enhancement of crops, applied in the field of nitrate nitrogen distribution ratio to achieve the effect of enhancing stress resistance

Active Publication Date: 2017-09-15
HUNAN AGRICULTURAL UNIV
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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to practically apply the theoretical knowledge mentioned in the above background technology through the addition of crop exogenous growth regulating substances (1-aminocyclopropane-1-carboxylic acid and methyl jasmonate), Provide a growth regulation method that can significantly increase the accumulation of nitrate nitrogen in the roots of crops, thereby significantly improving the resistance of crops to environmental abiotic stress, and enhancing the resistance of crops to environmental abiotic stress such as heavy metal pollution and salt stress in the growth environment

Method used

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  • A method of enhancing crop resistance to environmental abiotic stress
  • A method of enhancing crop resistance to environmental abiotic stress
  • A method of enhancing crop resistance to environmental abiotic stress

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Embodiment 1

[0034] A method for enhancing crop resistance to environmental abiotic stress, comprising the following steps:

[0035] Step 1: Crop Seedling Cultivation

[0036] Cultivation of rice seedlings: Yoshida nutrient solution is used for hydroponics, and NH is added to the nutrient solution respectively 4 NO 3 , NaH 2 PO 4 ∙2H 2 O, K 2 SO 4 , CaCl 2 , MgSO 4 ∙7H 2 O, so that the content of macronutrient elements N, P, K, Ca, and Mg in the nutrient solution is 40, 10, 40, 40, 40 mg / L respectively; at the same time, add MnCl to the nutrient solution 2 ∙4H 2 O, (NH 4 ) 6 Mo 7 o 24 ∙2H 2 O, H 3 BO 3， ZnSO 4 ∙7H 2 O, CuSO 4 ∙5H 2 O, FeCl 3 ∙6H 2 O, make the content of micronutrient elements Mn, Mo, B, Zn, Cu, Fe in the nutrient solution be 0.5, 0.05, 0.2, 0.01, 0.01, 2.0 mg / L respectively. The culture container is a plastic basin with a length of 35 cm, a width of 25 cm, and a height of 30 cm. A foamed polystyrene sheet is floated on it. There are 120 holes on the...

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Abstract

The invention provides a method for enhancing crop resistance to environmental abiotic stress, comprising the steps of: placing seedlings in a simulated pool of environmental abiotic stress, and simultaneously containing 1-aminocyclopropane-1-carboxylic acid and jasmonic acid The plant growth regulator solution of methyl ester is evenly sprinkled on the leaves of the seedlings, and the amount of spraying is based on the fact that the growth regulator solution completely wets all the leaves. The invention is a growth regulation method that can significantly increase the accumulation of nitrate nitrogen in the roots of crops, thereby significantly improving the resistance of crops to environmental abiotic stress, and enhancing the resistance of crops to environmental abiotic stress such as heavy metal pollution and salt stress in the growth environment. sex.

Description

technical field [0001] The invention relates to a crop cultivation and growth regulation method, in particular to a method for increasing the distribution ratio of nitrate nitrogen in crop roots through the application of a plant growth regulator, thereby enhancing the stress resistance of crops. Background technique [0002] About 20% of the earth's surface soil is affected by environmental abiotic stresses. These soils are found not only in deserts and semi-deserts, but also in densely populated irrigated areas such as fertile plains, river valleys, and coasts. Environmental abiotic stress can be mainly divided into two types: wetland stress and drought stress. Wetland stress refers to marsh areas near the sea, which are affected by the high salt content of seawater and produce salt stress. Dryland stress is mainly distributed inland on the edge of deserts. Other stresses affect mainly inland lake and river areas. Environmental abiotic stress refers to the salt or heav...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G7/06A01N37/44A01P21/00A01N37/42
Inventor 张振华宋海星韩永亮田昌刘强荣湘民简少芬曾晶廖琼余音
Owner HUNAN AGRICULTURAL UNIV
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