Comprehensive evaluation method for drought resistance of rice at bud stage on basis of grading coefficients

A comprehensive evaluation and drought resistance technology, which is applied in the field of comprehensive evaluation of drought resistance of rice germination based on grading coefficients, can solve problems such as the large influence of the number of grading value indicators, the loss of objectivity of evaluation results, and the impact of evaluation results

Active Publication Date: 2018-11-23
INST OF PLANT PROTECTION SICHUAN ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems, the present invention provides a method for comprehensive evaluation of drought resistance of rice bud stage based on grading coefficient. The mathematical method of the grading standard proposes the grading coefficient GC as a new comprehensive evaluation index, which solves the problem that the existing gra

Method used

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  • Comprehensive evaluation method for drought resistance of rice at bud stage on basis of grading coefficients
  • Comprehensive evaluation method for drought resistance of rice at bud stage on basis of grading coefficients
  • Comprehensive evaluation method for drought resistance of rice at bud stage on basis of grading coefficients

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] In the present embodiment, a method for comprehensive evaluation of drought resistance of rice bud stage based on grading coefficient, the method comprises the following steps:

[0053] (1) Determine the rice varieties to be evaluated: select 20 main rice varieties in Sichuan Province, as shown in Table 1 below.

[0054] Table 1 embodiment one selected rice variety and quantity

[0055] breed name

Variety number

breed name

Variety number

H Excellent 399

HY399

Inner 6 Excellent 138

N6Y138

Chuanyou 6203

CY6203

Yixiang 907

YX907

H excellent 523

HY523

Yixiang 2079

YX2079

Chuanxiangyou No.6

CXY6

Yixiang 2115

YX2115

Chuanyou 3727

CY3727

Yixiang 3724

YX3724

Chuanyou 5108

CY5108

Inside fragrance 8514

NX8514

Floral 7021

HX7021

Dexiang 4923

DX4923

Gangyou 900

GY900

Luyou 137

LY137

Gangyou 99

GY99

...

Embodiment 2

[0079] In the present embodiment, a method for comprehensive evaluation of drought resistance of rice bud stage based on grading coefficient, the method comprises the following steps:

[0080] (1) Determine the rice varieties to be evaluated: select 20 main rice varieties in Sichuan Province, as shown in Table 4 below.

[0081] The selected rice variety and quantity of the embodiment two of table 4

[0082] breed name

Variety number

breed name

Variety number

H Excellent 399

HY399

Inner 6 Excellent 138

N6Y138

Chuanyou 6203

CY6203

Yixiang 907

YX907

H excellent 523

HY523

Yixiang 2079

YX2079

Chuanxiangyou No.6

CXY6

Yixiang 2115

YX2115

Chuanyou 3727

CY3727

Yixiang 3724

YX3724

Chuanyou 5108

CY5108

Inside fragrance 8514

NX8514

Floral 7021

HX7021

Dexiang 4923

DX4923

Gangyou 900

GY900

Luyou 137

LY137

Gangyou 9...

Embodiment 3

[0103] In the present embodiment, a method for comprehensive evaluation of drought resistance of rice bud stage based on grading coefficient, the method comprises the following steps:

[0104] (1) Determine the rice varieties to be evaluated: select 20 main rice varieties in Sichuan Province, as shown in Table 6 below.

[0105] The selected rice variety and quantity of the third embodiment of table 6

[0106] breed name

Variety number

breed name

Variety number

H Excellent 399

HY399

Inner 6 Excellent 138

N6Y138

Chuanyou 6203

CY6203

Yixiang 907

YX907

H excellent 523

HY523

Yixiang 2079

YX2079

Chuanxiangyou No.6

CXY6

Yixiang 2115

YX2115

Chuanyou 3727

CY3727

Yixiang 3724

YX3724

Chuanyou 5108

CY5108

Inside fragrance 8514

NX8514

Floral 7021

HX7021

Dexiang 4923

DX4923

Gangyou 900

GY900

Luyou 137

LY137

Gangyou...

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Abstract

The invention discloses a comprehensive evaluation method for drought resistance of rice at a bud stage on the basis of grading coefficients and relates to the technical field of agricultural production. According to the method, a grading method is improved, a mathematical method with standard deviations as grading standards is established, it is proposed that the grading coefficients are used asnew comprehensive evaluation indexes, and the problems are solved that there is high subjectivity in existing grading methods due to artificial division, correspondingly evaluation results have no objectivity, the scientificity is reduced, the universality is not high, grading evaluation values are greatly affected by the number of the indexes, and thus the accuracy of the evaluation results is affected; the drought resistance of the rice can be more precisely evaluated, and a basis is provided for screening the rice with the drought resistance.

Description

technical field [0001] The invention belongs to the technical field of agricultural production, and in particular relates to a method for comprehensively evaluating drought resistance of rice bud stage based on grading coefficients. Background technique [0002] Rice is the most important food crop in my country and even in the world. Its production water consumption ranks first among all kinds of crops, accounting for about 70% of agricultural water consumption. According to statistics, the entire growth period of rice consumes about 8884.4m of water 3 / hm 2 , of which the field evacuation amounted to 72.31%. Under the traditional flood irrigation cultivation method, rice production consumes a lot of water, but the water use efficiency is not high, resulting in the waste of water resources and exacerbating the contradiction between agricultural production and water shortage. Studies have pointed out that drought has become the main abiotic stress factor hindering the pro...

Claims

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Application Information

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IPC IPC(8): A01G22/22A01C1/00A01C1/02G06Q50/02G06Q10/06
CPCA01C1/00A01C1/025A01G22/22G06Q10/06393G06Q50/02
Inventor 张鸿李其勇李星月
Owner INST OF PLANT PROTECTION SICHUAN ACAD OF AGRI SCI
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