Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for evaluating rice seedling stage cold resistance based on principal component analysis

A principal component analysis and evaluation method technology, applied in the field of crop genetics and breeding, can solve problems such as the inability to accurately identify the cold resistance of rice seedlings

Pending Publication Date: 2021-04-09
SHENYANG NORMAL UNIV
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, cold tolerance is a quantitative trait determined by multiple factors. Only one or a few evaluation indicators have certain limitations and cannot accurately identify the cold tolerance of rice seedlings.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for evaluating rice seedling stage cold resistance based on principal component analysis
  • Method for evaluating rice seedling stage cold resistance based on principal component analysis
  • Method for evaluating rice seedling stage cold resistance based on principal component analysis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of systems consistent with aspects of the invention as recited in the appended claims.

[0048]The impact of adversity stress on plants is closely related to various factors such as stress type, stress intensity, and duration, and is related to plant species. Low temperature stress will have an impact on the external morphological characteristics and physiological and biochemical indicators of rice. At present, previous studies have done some research on the evaluation indicators of rice seedling c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for evaluating the cold resistance of rice in the seedling stage based on principal component analysis, and the method comprises the steps: adopting a principal component analysis method to comprehensively evaluate the cold resistance of rice germplasm resources in the seedling stage, wherein the correlation analysis results show that six physiological indexes and morphological indexes have negative correlation; converting seven measured single indexes into three independent comprehensive indexes through principal component analysis, wherein the cumulative contribution rate reaches 84.76%; according to the comprehensive index D value, dividing germplasm resources into five types, and screening out the four varieties with extremely high comprehensive cold resistance in the seedling stage in total; wherein the principal component and regression combined analysis results show that the seven indexes can be used as important indexes for identifying the seedling-stage cold resistance of the rice germplasm resources. The method disclosed by the invention has guiding significance for seedling-stage cold-resistant rice variety cultivation.

Description

technical field [0001] The disclosure of the invention relates to the technical field of crop genetics and breeding, in particular to a method for evaluating the cold resistance of rice seedlings based on principal component analysis. Background technique [0002] Rice is a staple food consumed by most of the world's population. According to statistics, my country's rice production accounts for about 45% of the world's total rice production, but on average every 4-5 years there will be a large-scale reduction in production due to chilling damage. Rice is a subtropical temperature-loving crop, and it will suffer from low temperature and chilling damage at all stages of growth and development. The identification and evaluation of cold resistance of rice germplasm resources is an important prerequisite and guarantee for cultivating cold-resistant rice varieties. is of great significance. [0003] At present, researchers have done a lot of work on the selection of cold-resista...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06Q50/02G06Q10/06
CPCG06Q50/02G06Q10/06393
Inventor 逄洪波郑晓明李玥莹吴隆坤刘宏鑫赵宗耀职铭阳程露
Owner SHENYANG NORMAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com