Ideal phenotypic characteristics and parental lines for hybrid rice breeding to cope with global dimming

Wei Zhou; Youfeng Tao; Chunlian Jin; Juan Li; Fengjun Yan; Tao Wang; Qi Liu; Qiqi Deng; Wenwen Song; Yajun Wang; Yong Chen; Fei Deng; Xiaolong Lei; Jianfeng Hu; Hong Cheng; Wanjun Ren

Crop and Environment (Sep 2024)

Ideal phenotypic characteristics and parental lines for hybrid rice breeding to cope with global dimming

Wei Zhou,
Youfeng Tao,
Chunlian Jin,
Juan Li,
Fengjun Yan,
Tao Wang,
Qi Liu,
Qiqi Deng,
Wenwen Song,
Yajun Wang,
Yong Chen,
Fei Deng,
Xiaolong Lei,
Jianfeng Hu,
Hong Cheng,
Wanjun Ren

Affiliations

Wei Zhou: Corresponding authors.; State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, MARA Key Laboratory of Eco-physiology and Farming System in Southwest China, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
Youfeng Tao: State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, MARA Key Laboratory of Eco-physiology and Farming System in Southwest China, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
Chunlian Jin: State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, MARA Key Laboratory of Eco-physiology and Farming System in Southwest China, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
Juan Li: State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, MARA Key Laboratory of Eco-physiology and Farming System in Southwest China, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
Fengjun Yan: State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, MARA Key Laboratory of Eco-physiology and Farming System in Southwest China, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
Tao Wang: State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, MARA Key Laboratory of Eco-physiology and Farming System in Southwest China, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
Qi Liu: State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, MARA Key Laboratory of Eco-physiology and Farming System in Southwest China, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
Qiqi Deng: State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, MARA Key Laboratory of Eco-physiology and Farming System in Southwest China, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
Wenwen Song: State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, MARA Key Laboratory of Eco-physiology and Farming System in Southwest China, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
Yajun Wang: State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, MARA Key Laboratory of Eco-physiology and Farming System in Southwest China, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
Yong Chen: State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, MARA Key Laboratory of Eco-physiology and Farming System in Southwest China, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
Fei Deng: State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, MARA Key Laboratory of Eco-physiology and Farming System in Southwest China, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
Xiaolong Lei: State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, MARA Key Laboratory of Eco-physiology and Farming System in Southwest China, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
Jianfeng Hu: State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, MARA Key Laboratory of Eco-physiology and Farming System in Southwest China, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
Hong Cheng: State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, MARA Key Laboratory of Eco-physiology and Farming System in Southwest China, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
Wanjun Ren: Corresponding authors.; State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, MARA Key Laboratory of Eco-physiology and Farming System in Southwest China, Sichuan Agricultural University, Chengdu, Sichuan 611130, China

Journal volume & issue: Vol. 3, no. 3
pp. 177 – 184

Abstract

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The global food crisis has intensified with climate change, and hybrid rice (Oryza sativa L.) is expected to play a crucial role in ensuring world food security. This study analyzed the parental origins and variety characteristics of 930 hybrid rice varieties bred in Sichuan Province, a typical low-light region and one of the main production areas for hybrid rice, from 2002 to 2022. The results indicate that these varieties were hybridized using 329 direct female and 539 direct male parents. Notably, the female parent Peiai 64 and the male parents Yuehesimiao and Fenghuazhan demonstrated a higher probability of breeding rice varieties with high yield and good quality. An ideal panicle type should possess more grains, a lower 1000-grain weight, a higher seed setting percentage, and greater grain density. It is recommended to increase the utilization of excellent parents in Sichuan Province, such as parents with ideal panicle type to improve resistance to climate change, particularly global dimming.

Published in Crop and Environment

ISSN: 2773-126X (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Agriculture: Agriculture (General); Social Sciences: Industries. Land use. Labor: Special industries and trades: Agricultural industries
Website: https://www.sciencedirect.com/journal/crop-and-environment

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