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Early identification and treatment method of rice chilling injury

A treatment method and rice technology, applied in rice cultivation, botany equipment and methods, applications, etc., can solve problems such as poor maturity, decreased dry grain weight, and reduced rice production

Inactive Publication Date: 2019-12-06
FARMING & CULTIVATION RES INST OF HEILONGJIANG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The low temperature often delays the flowering period and the maturity period, resulting in poor maturity
During the maturity period, the elongation of the chilling-damaged grains slows down, and when they suffer from frost, the maturation process stops and the dry grain weight decreases, resulting in a large area of ​​rice production reduction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A rice chilling damage early identification and processing method thereof, comprising the following steps:

[0033] A, at the three-leaf stage, one leaf and one heart stage, collect the seedling blade and carry out malondialdehyde (MDA) detection, obtain the malondialdehyde content in the unit fresh weight;

[0034] B, simultaneously adopting the mode of greenhouse cultivation to carry out rice cultivation as a comparative example;

[0035] C. According to the increase ratio of malondialdehyde content, the rice chilling damage is graded;

[0036] D. According to different rice chilling injury levels, different treatment methods are adopted to treat rice leaves and soil.

[0037] In described step A, the method for described malondialdehyde detection comprises the following steps:

[0038] Step 1: Take 0.5g rice leaf and add 5% TCA 5ml, after grinding, the obtained homogenate is centrifuged at 3000r / min for 10min;

[0039] Step 2: Take 2ml of the supernatant, add 2ml ...

Embodiment 2

[0049] A rice chilling damage early identification and processing method thereof, comprising the following steps:

[0050] A, at the three-leaf stage, one leaf and one heart stage, collect the seedling blade and carry out malondialdehyde (MDA) detection, obtain the malondialdehyde content in the unit fresh weight;

[0051] B, simultaneously adopting the mode of greenhouse cultivation to carry out rice cultivation as a comparative example;

[0052] C. According to the increase ratio of malondialdehyde content, the rice chilling damage is graded;

[0053] D. According to different rice chilling injury levels, different treatment methods are adopted to treat rice leaves and soil.

[0054] In described step A, the method for described malondialdehyde detection comprises the following steps:

[0055] Step 1: Take 0.5g rice leaf and add 5% TCA 5ml, after grinding, the obtained homogenate is centrifuged at 3000r / min for 10min;

[0056] Step 2: Take 2ml of the supernatant, add 2ml of...

Embodiment 3

[0066] A rice chilling damage early identification and processing method thereof, comprising the following steps:

[0067] A, at the three-leaf stage, one leaf and one heart stage, collect the seedling blade and carry out malondialdehyde (MDA) detection, obtain the malondialdehyde content in the unit fresh weight;

[0068] B, simultaneously adopting the mode of greenhouse cultivation to carry out rice cultivation as a comparative example;

[0069] C. According to the increase ratio of malondialdehyde content, the rice chilling damage is graded;

[0070] D. According to different rice chilling injury levels, different treatment methods are adopted to treat rice leaves and soil.

[0071] In described step A, the method for described malondialdehyde detection comprises the following steps:

[0072] Step 1: Take 0.5g rice leaf and add 5% TCA 5ml, after grinding, the obtained homogenate is centrifuged at 3000r / min for 10min;

[0073] Step 2: Take 2ml of the supernatant, add 2ml ...

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PUM

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Abstract

The invention discloses a rice chilling damage early identification and handling method. The rice chilling damage early identification and handling method comprises the steps that level assessment is conducted on rice chilling damage according to different malondialdehyde content, handling is carried out according to different chilling damage levels, and ATP aqueous solution is sprayed on blades of mild damage; ATP and alkaloid aqueous solution are sprayed on blades of moderate damage; ATP, alkaloid and sodium chloride solution are sprayed on blades of heavy damage, wherein ATP mainly supplements the nutrients needed for plant growth, and alkaloid and sodium chloride play the role of inhibiting malondialdehyde and reducing damage to plant organism.

Description

technical field [0001] The invention relates to the technical field of rice planting, in particular to an early identification and treatment method of rice chilling injury. Background technique [0002] Low temperature chilling injury of rice usually refers to the impact of low temperature below the lowest critical growth temperature of rice, which leads to abnormal growth and development of rice and reduced yield. Chilling damage is one of the main obstacles to rice production in cold regions. It generally occurs in two periods: one is the freezing injury that occurs during the seedling cultivation period from April to May, that is, the seedlings are withered. The second is "baldness", "shrunken grains" and even no earing caused by delayed chilling injury and obstacle chilling injury in the Honda period. [0003] symptom [0004] After the seedling stage is damaged by low temperature, the leaves of the whole plant turn yellow, the lower part of the plant produces yellow ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G22/22A01G13/00G01N21/31C05G3/00
CPCA01G13/00A01G22/22C05B15/00C05G3/00C05G5/20G01N21/31
Inventor 王立志孟英宋显伟李辉来永才唐傲张喜娟董文军冷春旭刘猷红冯延江邸树峰董德建张磊郭伟郭玉锋陈国建罗春华张必弦孙世臣姜树坤王彤彤丁国华项洪涛洛育孙兵赵宏亮于洋孙羽曾宪楠宋秋来王萍李波姜辉任洋刘凯张俐俐刘媛媛张静华王阳史晓璐夏天舒卞景阳杨忠良徐振华李洪林马瑞高世伟王曼力谢婷婷
Owner FARMING & CULTIVATION RES INST OF HEILONGJIANG ACADEMY OF AGRI SCI