Electrophysiological characteristic based stress-resistant crop variety selection method

An electrophysiological and crop technology, applied in the field of selection of stress-resistant crop varieties based on electrophysiological characteristics, can solve problems such as long time required, influence of multiplication and generation, and heavy workload

Active Publication Date: 2020-01-31
INST OF GEOCHEM CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conventional method of selecting stress-resistant crop varieties not only requires specific stress conditions, but also needs to measure multiple growth and development indicators as well as physiological and biochemical indicators. also not comparable
Especially when comparing strains, it is necessary to obtain the yield and stress resistance information of the strains at the time of harvest, which also has a serious impact on the expansion and generation.

Method used

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  • Electrophysiological characteristic based stress-resistant crop variety selection method
  • Electrophysiological characteristic based stress-resistant crop variety selection method
  • Electrophysiological characteristic based stress-resistant crop variety selection method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0185] Example 1 Pick potato plants greater than 5 leaf stages and in the growth stage at the experimental field of Agricultural Vocational College in Qingzhen, Guiyang, and return to the laboratory quickly. After cleaning the surface dust of the leaves on the plants, collect the second one from the plants respectively. Expand the leaf to the fourth unfolded leaf as the leaf to be tested, put it in distilled water and soak for 30 minutes; blot the water on the surface of the leaf, and immediately clamp the leaf to be tested between the parallel electrode plates of the measuring device, set the measuring voltage and frequency, and change the iron Different clamping forces are set according to the quality of the block, and the crop leaf physiological capacitance, physiological resistance and physiological impedance under the parallel mode are measured under different clamping forces; Utilize the present invention, with the second expanded leaf of the first plant of Potato Feureta ...

Embodiment 2

[0206] Example 2 Pick pepper plants greater than 5 leaf stage and in the growth stage at the experimental field of Agricultural Vocational College in Qingzhen, Guiyang, and quickly return to the laboratory. After cleaning the surface dust of the leaves on the plants, collect the second pepper plants one by one from the plants Expand the leaf to the fourth unfolded leaf as the leaf to be tested, put it in distilled water and soak for 30 minutes; blot the water on the surface of the leaf, and immediately clamp the leaf to be tested between the parallel electrode plates of the measuring device, set the measuring voltage and frequency, and change the iron The quality of the block is used to set different clamping forces, and the parallel mode is used to measure the physiological capacitance, physiological resistance and physiological impedance of crop leaves under different clamping forces; the same method as in Example 1, and finally obtain the comprehensive score S of 13 materials...

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Abstract

The invention belongs to the technical field of crop breeding and discloses an electrophysiological characteristic based stress-resistant crop variety selection method. By determination of physiological capacitances, physiological resistances and physiological impedances of crop leaves under different clamping forces, physiological capacitive reactance and physiological inductive reactance are further calculated. Changing models of the physiological capacitances, the physiological resistances, the physiological impedances, the physiological capacitive reactance and the physiological inductivereactance of the crop leaves along with the clamping forces are constructed respectively; specific effective thickness, intrinsic physiological resistance, intrinsic physiological impedance, intrinsicphysiological capacitive reactance and intrinsic physiological inductive reactance of the crop leaves are calculated according to parameters of the models; further, crop leaf cell metabolism, crop relative water retention time, crop low-nutrition tolerance and crop nutrient utilization efficiency of the crop leaves are calculated; by normalization of indexes, scores of to-be-tested samples are comprehensively assessed to quantitatively compare to-be-tested varieties according to comprehensive score averages.

Description

technical field [0001] The invention belongs to the technical field of crop breeding, and specifically relates to a method for selecting stress-resistant crop varieties based on electrophysiological characteristics, which can not only quickly and online quantitatively detect the comprehensive ability of different crop material metabolism and energy metabolism, but also screen high-yield and stress-resistant crop varieties. The results of the measurement are comparable, and biophysical indicators can also be used to characterize the adaptation characteristics of different crops to drought and low nutrition, which greatly improves the efficiency of crop variety selection, reduces costs, and provides technical support for intelligent breeding. It is an important component of smart agriculture. part. Background technique [0002] Stress-resistant crop varieties refer to crop varieties that can obtain high yield in adversity. Common stress-resistant varieties are characterized by...

Claims

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Application Information

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IPC IPC(8): A01G7/00A01G7/06G01N27/00G01N27/04G01N27/22G01N33/00
CPCA01G7/00A01G7/06G01N27/00G01N27/04G01N27/221G01N33/0098
Inventor吴沿友张承苏跃吴沿胜方蕾李海涛吴明开王瑞
OwnerINST OF GEOCHEM CHINESE ACADEMY OF SCI