Abstract: The field purity identification of rice varieties in regional trials is still one of the reliable methods to determine the purity of new varieties. In this paper, the cultivation conditions, planting requirements and precautions, suitable identification period, identification principles, common abnormal plants types, main characters and identification standards of rice varieties in regional trial were summarized.

Key words: rice, variety regional trial, purity identification, detailed rules

摘要： 水稻区试品种田间纯度鉴定仍是当前新品种纯度鉴定的可靠方法之一。本文对水稻区试品种田间纯度鉴定的栽培条件、种植要求与注意事项、鉴定适期、鉴定原则、常见的杂株类型与主要性状及鉴别标准等进行了总结。

关键词: 水稻, 品种区试, 纯度鉴定, 细则