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

A method for identifying the drought tolerance of early-maturing rapeseed flowering stage under field conditions

A technology of drought tolerance and rape sprouts, which is applied in the field of crop cultivation, can solve the problems of poor reliability of identification results, etc., and achieve the effect of reliable identification results of drought tolerance, accuracy, and simple data

Active Publication Date: 2020-07-03
云南省农业科学院经济作物研究所
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problem that the prior art is limited to drought tolerance identification under a single drought stress condition, resulting in poor reliability of the identification results, the present invention provides a method for identifying the drought tolerance of early-maturing rapeseed flowering stage under field conditions

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
  • A method for identifying the drought tolerance of early-maturing rapeseed flowering stage under field conditions
  • A method for identifying the drought tolerance of early-maturing rapeseed flowering stage under field conditions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028]The growth period of rapeseed in Yunnan Province is in winter and spring, and winter and spring are seasonal drought periods in Yunnan. Natural precipitation is scarce and evaporation is large, so meteorological drought is very prone to occur. (Yunnan is located in the Asian monsoon climate zone, and summer is mainly affected by the southwest monsoon. , the southwest monsoon carries a large amount of water vapor from the ocean. In summer, Yunnan has more precipitation and the climate is humid. In winter, Yunnan is mainly affected by the easterly airflow from the front of the continental high pressure or the westerly airflow passing through the southern side of the Qinghai-Tibet Plateau. These airflows Relatively dry, resulting in scarce precipitation and dry climate.) Seasonal drought is an important climate feature of Yunnan’s drought. Yunnan has distinct dry and wet seasons. The rainy season (May to October) in most parts of the province accounts for about 85% of the ann...

Embodiment 2

[0039] Example 2 Drought tolerance identification of new materials selected and bred in 2017

[0040] The conventional rapeseed lines to be identified are: 12xs242-3-3, 12XS247-4-1, 12XS274-2-1, 12XS256-6-1.

[0041] Embodiment 2 Except that the test site is Xundian Experimental Base, Kunming City, Yunnan Province, other steps are the same as in Embodiment 1. The measurement results are shown in Table 2.

[0042] Table 2 Example 2 The number of effective lateral siliques, plant height, and TI values ​​of the test materials under different drought stress conditions

[0043]

[0044] According to the TI value in Table 2, the drought tolerance of the tested materials was identified, and the varieties with larger TI values ​​had stronger drought tolerance. Among them, the TI value of 12XS256-6-1 was 0.62, which was higher than that of the control Yunhuayouzaoshu No. 1, which was 0.40. The evaluation results show that 12XS256-6-1 has strong drought tolerance, 12xs242-3-3 and ...

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 identifying drought tolerance of early-maturing brassica napus in budding and flowering periods under field conditions. The method comprises the following steps: preparation of test plots; planting of materials to be identified; treatment of drought stress with two different degrees; and identification of drought tolerance of the materials. The drought tolerance identification disclosed by the invention is performed in a field by adopting a simplified movable rain shed for shielding rain, other conditions are ensured to be fully consistent to those of fieldplanting to an utmost extent except for a water content of soil, and tested results have high practical application values; the drought stress with different degrees is set to comprehensively identify the drought tolerance of the materials, and the screened materials have more reliable drought tolerance; the method disclosed by the invention is mainly used to identify the drought tolerance of theearly-maturing brassica napus in the budding and flowering periods, and a comprehensive drought tolerance evaluation formula of the early-maturing brassica napus in the budding and flowering periodsis made; and the method adopts a field identification method, is easy to operate, and does not need complicated instruments or equipment.

Description

technical field [0001] The invention relates to the technical field of crop cultivation, in particular to a method for identifying the drought tolerance of early-maturing rapeseed flowering stage under field conditions. Background technique [0002] The lack of water resources has become a worldwide problem. Drought has an extremely serious impact on agricultural production and is one of the factors that have the greatest impact on crop yield among all abiotic stresses. China is a country with poor water resources. Semi-arid and arid areas account for about 1 / 2 of my country's land. In recent years, with global warming, droughts have occurred frequently across the country. At present, droughts have become an issue affecting northern China. Global natural disasters, and the degree of seasonal drought in the south is also increasing. [0003] Rapeseed (Brassica napus) is one of the main oil crops in China. Its sown area and total output rank among the top in the world. The out...

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
Patent Type & Authority Patents(China)
IPC IPC(8): A01G7/00
CPCA01G7/00
Inventor 原小燕符明联张云云李根泽王敬乔罗延青赵凯琴何晓莹俎峰
Owner 云南省农业科学院经济作物研究所
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