Method for detecting whether after-drought re-watering compensatory growth of corn in seedling stage happens or not

A technology for compensatory growth and rehydration after drought, which is applied in the field of detecting whether compensatory growth of corn after drought in seedling stage occurs, and achieves the effects of accurate results, simple measurement methods and short time-consuming.

Inactive Publication Date: 2015-11-11
HENAN UNIV OF SCI & TECH
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Problems solved by technology

Finding an effective method to detect the compensatory growth of maize seedlings after rehydration after drought is of great signifi

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[0016] The present invention will be further elaborated below in combination with specific embodiments.

[0017] A method for detecting whether rehydration compensatory growth of maize at the seedling stage after drought occurs, comprising the following steps:

[0018] Step 1. Select corn seedlings with consistent growth and 6 to 12 days after emergence, and plant m plants in each pot into 2n identical culture pots, and randomly divide the 2n pots of corn seedlings into test group a and control group b , n pots in each group;

[0019] Step 2: Carry out post-drought rehydration treatment to the test group a, fully supply water to the control group b all the time, and regularly sample and detect the zeatin nucleoside content in the corn seedling leaves of the test group a and the control group b;

[0020] Step 3, by comparing the detection results of the zeatin nucleoside content in the corn seedling leaves of the test group a and the control group b, determine whether the rehy...

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Abstract

The invention relates to a method for detecting whether after-drought re-watering compensatory growth of corn in the seedling stage happens or not. The method includes the following steps that firstly, corn seedlings are obtained to be divided into a test group a and a comparison group b at random; secondly, after-drought re-watering treatment is carried out on the test group a, sufficient water is supplied to the comparison set b all the time, and content of ribosylzeatin in leaves of the corn seedlings of the test group a and the comparison group b is detected periodically; thirdly, by comparing the content of the ribosylzeatin in the leaves of the corn seedlings of the test group a and the content of the ribosylzeatin in the leaves of the corn seedlings of the comparison group b, whether after-drought re-watering compensatory growth of the corn in the seedling stage happens or not is determined. The method can effectively detect whether after-drought re-watering compensatory growth of the corn in the seedling stage happens or not, and plays an important role in reducing the number of water supply times of the corn in the seedling stage, utilizing water in a concentrated mode and saving water. According to the method, materials obtained for detection are few, consumed time is short, and results are accurate. The measurement method is simple, easy to operate, convenient to use widely and high in practicality. Devices required in the method are simple, cost is low, and economic benefits are improved.

Description

technical field [0001] The invention relates to a determination method, in particular to a method for detecting whether the compensatory growth of maize at the seedling stage after rehydration occurs. Background technique [0002] Corn is the third largest crop in the world and in China, and it is also a water-intensive crop. However, water shortage is a key factor restricting the increase of maize yield in the northern part of our country. April to June is the seedling stage of corn growth in northern my country, but the limited rainfall and uneven distribution of rainfall during this period have caused serious water shortages for the growth of corn seedlings. Good growth at the seedling stage is the basis for the formation of maize yield, so it is very important to effectively improve the water use efficiency of maize seedling stage to increase the maize yield in these areas. [0003] In order to adapt to the drought environment, the growth of plants decreases under wate...

Claims

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Application Information

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IPC IPC(8): A01G1/00G01N33/53
CPCA01G22/00G01N33/53
Inventor 王晓凌王静静戴攀峰亓琳张利霞侯小改施江赵威李雪林张有福董普辉郭丽丽徐国伟
Owner HENAN UNIV OF SCI & TECH
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