Geyang  Zhan^1,2

1 Zhejiang Longyou Wuguxiang Seed Industry Co., Ltd., Longyou, 324400, Zhejiang, China
2 Zhejiang Agronomist College, Hangzhou, 310021, Zhejiang, China
Author    Correspondence author
Genomics and Applied Biology, 2026, Vol. 17, No. 3   
Received: 16 Apr., 2026    Accepted: 21 May, 2026    Published: 04 Jun., 2026

This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Zhongzu 100 is a newly approved conventional early indica rice cultivar jointly developed by Longyou Wuguxiang Seed Industry Co., Ltd. and the China National Rice Research Institute. This study systematically evaluates its breeding background, agronomic characteristics, grain quality traits, stress resistance performance, and production application value based on official variety registration data, regional trial results, production trials, and relevant literature. The results indicate that Zhongzu 100 possesses a moderate growth duration, compact plant architecture, synchronized maturity, favorable population uniformity, and stable yield performance. In Zhejiang provincial regional trials, the variety achieved a yield advantage over the control cultivar and demonstrated strong adaptability to early-rice production systems. Grain quality evaluation showed acceptable milling and edible quality, although further improvement in appearance quality remains desirable. Disease resistance assessment revealed moderate susceptibility to rice blast and relatively weak resistance to bacterial leaf blight, indicating the need for appropriate disease management during cultivation. Case studies further confirmed its suitability for large-scale production, mechanized cultivation, and commercial seed promotion. Overall, Zhongzu 100 represents a practical and productive early-rice cultivar that successfully balances earliness, yield potential, and production stability. The variety has considerable significance for improving early-rice productivity, supporting regional agricultural development, and promoting innovation within the seed industry. Future efforts should focus on enhancing grain quality, strengthening disease resistance, and expanding regional adaptability evaluation.

Zhongzu 100; Early indica rice; Agronomic characteristics; Production application; Varietal evaluation