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A technical method for quickly identifying drought resistance of wheat using near-infrared spectroscopy

A near-infrared spectrometer and drought resistance technology, applied in the field of plant biology, can solve problems such as research gaps, and achieve the effect of effective drought resistance resource screening and effective drought resistance identification

Inactive Publication Date: 2015-09-02
LUOYANG ACADEMY OF AGRI & FORESTRY SCI
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Problems solved by technology

[0009] The research on near-infrared spectroscopy in the breeding of crops resistant to diseases and insect pests has been reported, but the use of near-infrared spectroscopy to establish a screening system for wheat drought-resistant materials and its mechanism has not been reported, and the research in this area is still blank

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  • A technical method for quickly identifying drought resistance of wheat using near-infrared spectroscopy
  • A technical method for quickly identifying drought resistance of wheat using near-infrared spectroscopy

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Embodiment 1

[0046] A method for rapidly identifying drought resistance of wheat by using near-infrared diffuse reflectance, comprising the following steps:

[0047] A. Select representative wheat grain samples evenly distributed at each drought resistance level as the calibration sample set for future use;

[0048] B. The drought resistance index of all wheat grain samples in the calibration sample set is determined by the conventional identification method of wheat drought resistance;

[0049] Calculate the drought resistance index according to the following formula:

[0050] DI = GYS.T 2 ·GYS.W -1 ·GYCK.W·(GYCK.T 2 ) -1

[0051] In the formula:

[0052] DI: drought resistance index;

[0053] GYS.T: Grain yield of the material under stress treatment;

[0054] GYS.W: the grain yield of the control treatment of the material to be tested;

[0055] GYCK.W: the grain yield of the control variety and the control treatment;

[0056] GYCK.T: Grain yield of control variety under stress ...

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Abstract

The invention mainly relates to a technical method for quickly identifying the drought resistance of wheat by using a near-infrared spectroscopy. The technical method comprises the following steps: A, selecting representative wheat grain samples distributed on all drought resistance grades as a sample calibration set, B, determining the drought resistance indexes of all the wheat grain samples in the sample calibration set through adopting a wheat drought resistance identification method in the national standard method, C, collecting near infrared spectrums of the sample calibration set and determining a mathematical model, and D, detecting to-be-tested samples. The mathematical model for screening and identifying wheat drought resistance materials is established through using the difference on the near infrared spectrums of the wheat grains of the same drought resistance type, the reliability and the applicability are high, the technical method is not limited by the period, so that identification is carried out at any moment; in addition, the technical method is also not limited by the quantity, thereby screening drought resistance resources simply, conveniently and efficiently on a large scale, and the drought resistance identification to the early generation and high generation materials of the wheat can be performed quickly, losslessly and efficiently.

Description

technical field [0001] The invention belongs to the field of plant biology, and in particular relates to a technical method for quickly identifying the drought resistance of wheat by using a near-infrared spectrometer. Background technique [0002] Drought is a common natural disaster in the world. The arid area in my country accounts for about 47% of the cultivated land area, and drought disaster is one of the most serious meteorological disasters in my country. Due to the global vicious change of climate, the cycle of drought is shortened and the degree is aggravated, which poses a serious threat to food production. China has a vast territory, and the precipitation varies greatly from place to place, so the degree of drought also varies greatly. The average annual precipitation in southern China is 850-1800 mm, and in a few areas it is over 2000 mm. In the north, except for the Changbai Mountain area, the annual precipitation is about 1000 mm, and the average annual prec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/359G01N21/3563
Inventor 张灿军冯伟森吴少辉高海涛谷运红焦珍王卫东张学品杨洪强杨子光余四平张园田文仲段国辉温红霞
Owner LUOYANG ACADEMY OF AGRI & FORESTRY SCI
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