Journal of Zhejiang Agricultural Sciences ›› 2025, Vol. 66 ›› Issue (4): 819-825.DOI: 10.16178/j.issn.0528-9017.20240787

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Character analysis of rice varieties approved through different test channels in Jiangsu Province

FAN Dejia(), CHEN Shiqiang, HE Zhentian, ZHANG Rong, WANG Ruqin, CHENG Menghao, WANG Jianhua()   

  1. Institute of Agricultural Sciences for Lixiahe Region in Jiangsu, Yangzhou 225007, Jiangsu
  • Received:2024-10-09 Online:2025-04-11 Published:2025-05-09
  • Contact: WANG Jianhua

Abstract:

In recent years, the number of rice varieties approved in China has exploded, and the number of rice varieties approved in Jiangsu Province has also increased dramatically. In this study, the agronomic traits data of all rice varieties approved in Jiangsu Province from 2020 to 2024 were collected and classified according to indica-japonica subspecies and test channels. The differences in agronomic traits and annual trends of rice varieties approved in different test channels were compared and analyzed. From 2020 to 2024, there were 400 rice varieties approved in Jiangsu Province, including 73 indica rice and 327 japonica rice. There were 109 varieties participating in the provincial regional test, 228 in the combination test, 60 in the independent test, and 3 in the green channel. There were significant differences in some agronomic traits of rice varieties approved through different test channels. This study will help breeders to optimize breeding strategies and make the selected varieties more suitable for market demand.

Key words: Jiangsu Province, rice, approved varieties, test channels, agronomic traits

CLC Number: