玉米新品种DUS测试中数量性状的适宜样本容量研究

DUS(Distinctness,Uniformity and Stability)测试是对申请品种权的植物新品种的特异性、一致性和稳定性进行测试.DUS测试结果直接影响到植物新品种是否能被授予保护权.在DUS测试中,数量性状是完成品种描述和进行特异性判定的重要部分,而数量性状的调查花费人工最多、工作量最大,怎样能缩小工作量又能反映数量性状调查的准确性,这是该试验研究的目的.目前,玉米测试指南已经成为国家指南,指南要求每个数量性状测量40个数据.作者利用10个测试品种、全株10个数量性状,对每个性状的40个已测样本进行统计分析,根据抽样分布理论和区间估计的方法确定每个性状的最小取样容量.

Study on the Sample Size of Quantitativ Character in Dus Testing of New Varieties of Maize

DUS testing is to test the distinctness, uniformity and stability of a new species, which is a necessary foundation of whether the new species is granted being protected. The result of the DUS testing influences whether a new variety should be protected. Quantitative character is the significant part of describing the character of species in DUS testing, however, investigation of quantitative character is a manpower demanding work, so it has become a important topic DUS testing workers facing with about how to deflate the manpower at the same time reflecting the accuracy of quantitative character. this is the main purpose of this paper.Nowadays, it demands 40 samples for one quantitative character by national maize guideline. In our experiment, we have a significance analysis for 40 data, aiming at 10 testing samples,10 quantitative character, the minimum of testing samples for DUS testing depends on the theory of sampling distributing and scope estimating.