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一、田间检验内容与检验时期田间检验包括杂交稻品种(组合)的真实性、纯度、杂草、病虫害、杂交稻生育情况等。真实性检验,是受检的种子与品种(组合)是否相符;纯度检验,是检验能够影响种子纯度质量的全部项目,如隔离条件,本品种(组合)父母本里所夹杂的变异株、常规稻,生物学混杂的典型株,母本行里夹杂的保持系、恢复系等其它类型的杂株,亦作为杂交稻繁殖与制种田种子纯度检验的内容。检验分别在幼苗期、抽穗期(抽穗5%)、蜡熟期三个生长时期进行,特别是要在生物学特征表现最明显的后两个时期进行。
First, the field test content and inspection field testing, including hybrid rice varieties (combinations) of the authenticity, purity, weeds, pests and diseases, hybrid rice growth and so on. The authenticity test is whether the tested seeds match the breeds (combinations); the purity test is to test all the items that can affect the purity and quality of the seeds, such as the isolation conditions, the mutants contained in the parents of the breeds (combinations), the routine Rice, mixed typical strains of biology, parental line contained in the holding system, restorer lines and other types of hybrids, also used as hybrid rice breeding and farming seed purity test content. The test was carried out in seedling stage, heading stage (5% heading) and wax maturity stage, respectively, especially in the last two periods when the biological characteristics were most obvious.