朱顶红新品种DUS测试数量性状筛选与分级  

Selection and Classification for Amaryllis( Hippeastrum)DUS Testing Quantitative Traits

作　　者：褚云霞[1,2] 邓姗[1,2] 黄志城[1,2] 顾晓君 李寿国 张永春[3] 陈海荣[1,2] 

机构地区：[1]上海市农业科学院农产品质量标准与检测技术研究所,上海201403 [2]农业部植物新品种测试(上海)分中心,上海201415 [3]上海市农业科学院林果所,上海201403

出　　处：《植物遗传资源学报》2016年第3期466-474,共9页Journal of Plant Genetic Resources

基　　金：上海市科技兴农重点攻关项目(沪农科攻字(2012)第2-1号);农业行业标准制修订项目(2009-31;沪农科种字(2013)第9号);上海市科委项目(14391900500)

摘　　要：利用70个朱顶红品种对12个数量性状进行了筛选及分级研究,并对5个数量性状的测量部位进行了研究。结果表明：所有性状均满足DUS测试要求,性状2由于区分能力弱不适于作为DUS测试性状。12个数量性状可进行3~9个连续分布的分级。花茎从下往上逐渐变细,但不同品种变细程度略有差异,在测量花茎中部的最大宽度时要求严格测量花茎的1/2处;不同茎上各数量性状测量值略有差异,除花茎长度和花梗长度外的性状差异不显著;同一花茎不同花间数量性状差异较小;同品种的花外花被片长度、宽度不存在显著差异;种球大小对数量性状有显著影响。The 12 quantitative traits were selected and classified with 70 amaryllis varieties. And the measurement site of five quantitative traits were studied also. The results showed that all quantitative traits are suitable for DUS testing,while characteristic 2 has a weak distinguishing ability. 12 quantitative traits can be classified into 3-9 continuous grades respectively. The peduncles become narrow from base to apex with a different degree in different variety. The measurement of＂Peduncle： maximum width at middle third＂should be made at the middle of peduncle to reduce the error. The quantitative traits of different peduncles have little difference,except for length of peduncle and pedicel. The differences between quantitative traits of different flowers on the same peduncle were little. There is no significant difference between the lengths of outer petal,so do the width of them. Bulb size had a remarkable effect on quantitative traits.

关 键 词：朱顶红 DUS测试 数量性状 筛选 分级 测量部位 

分 类 号：S682.25[农业科学—观赏园艺]