2025-4-13- 19
Home > Archive>Volume 22, Issue 3, 2021 >638-645. DOI:10.13430/j.cnki.jpgr.20200918003
PDF HTML XML Export Cite reminder
Influencing factors and genetic analysis of lodging resistance of high-quality rice ‘Yuenong Simiao’
Author:
Affiliation:

Rice Research Institute, Guangdong Academy of Agricultural Sciences / Guangdong Key Laboratory of New Technology in Rice Breeding

Fund Project:

Special Fund for Science and Technology Innovation Strategy (Construction of High-level Agricultural Academy)( R2016PY-JG001, R2018QD-008 and R2016YJ-YB3005); Discipline Team Building Project of the 13th Five-Year Plan of Guangdong Academy of Agricultural Sciences (201635TD); Key Projects of the Dean’s Fund of Guangdong Academy of Agricultural Sciences (201825); Rice Innovation Team Project of Modern Agricultural Industrial Technology System in Guangdong Province (2019KJ105); Quality Rice and Seed Major Scientific Research Joint Tackling of Department of Agriculture and Rural Affairs, Guangdong Province ([2019]73); Natural Science Foundation of Guangdong Province (2018A0303130172)

  • Article
    • | |
  • Metrics
    • |
  • Reference
    • |
  • Related
    • |
  • Cited by
    • | |
  • Comments
    Abstract:

    Lodging affects the production and transportation of photosynthetic products, molding and germination of seed, which aggravates the occurrence of diseases and insect pests, and reduces the quality and yield of grains. Usually, lodging resistance is influenced by plant height, stem structure and cultivation conditions. ‘Yuenong Simiao’, a main rice variety with good quality, has strong lodging resistance and can adapt to simplified cultivation pattern. However, the main factors of lodging resistance are still unclear. In this research, the plant height, breaking-resistant strength of individual plant and of basal internode, and the stem structure of rice ‘Yuenong Simiao’, ‘Xiangya Xiangzhan’, and the F2 population of ‘Yuenong Simiao’ × ‘Xiangya Xiangzhan’ were analyzed. The results showed that the shorter basal internode, the thicker wall and the higher substantiality of the stem were the important structural basis of lodging resistance of ‘Yuenong Simiao’ in comparison to ‘Xiangya Xiangzhan’. In the F2 populations, internode resistance, internode length, internode diameter, and stem wall thickness of N2 internode may be controlled by QTLs. The lodging resistance was weakly correlated with plant height and panicle length, but significantly positively correlated with stem diameter and wall thickness, and negatively correlated with internode length. The lodging resistance is mainly depended on the internode length, thickness and wall thickness. This study provides an important basis for revealing the internal factors of lodging resistance of rice ‘Yuenong Simiao’.

    Reference
    Related
    Cited by
Get Citation

Copy
Share
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:September 18,2020
  • Revised:October 19,2020
  • Adopted:November 12,2020
  • Online: May 07,2021
Article QR Code
You are the th visitor 京ICP备09069690号-23
® 2025 All Rights Reserved
Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Firefox, Chrome, IE10, IE11 are recommended. Other browsers are not recommended.