黄瓜果实在不同播种时期下DUS测试性状的差异  

Difference of the DUS Testing Results of Cucumber Fruit Characteristics on Different Sowing Dates

作　　者：章毅颖 任丽 陈海荣[1,2] 褚云霞 赵洪[1,2] 张余 邓姗 Zhang Yiying;Ren Li;Chen Hairong;Chu Yunxia;Zhao Hong;Zhang Yu;Deng Shan(Institute for Agri-Food Standards and Testing Technology,Shanghai Academy of Agricultural Sciences,Shanghai,201403;Shanghai Sub-Center for Plant New Variety Tests,Ministry of Agriculture and Rural Affairs,Shanghai,201415)

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]农业农村部植物新品种测试(上海)分中心,上海201415

出　　处：《分子植物育种》2024年第7期2300-2314,共15页Molecular Plant Breeding

基　　金：农业植物新品种保护测试项目(2020CDUS07)资助。

摘　　要：为了探究不同播种时期对黄瓜果实性状DUS测试结果的影响,以12个不同类型的黄瓜品种为试验材料,在同年同一地点的2个不同播种时期对黄瓜果实DUS测试性状进行了采集。本研究结果表明:对于不同播种时期,在21个果实群体目测(VG)性状中,高温、高湿、强太阳辐射的环境条件下,果实表面光泽度、表面斑块分布、果肉颜色、果实形状、果实顶端形状、果皮颜色、果皮表面蜡粉等性状均存在显著变化;5个果实个体测量(MS)性状也存在不同程度的显著差异,其中果实纵径、果实瓜把长度变化较为显著。经分析,由于这两个播种期的水肥管理基本一致,因此这些性状的差异变化很可能是气象环境因素造成,这也对不同播期DUS测试条件提出了更高的环境调控要求,否则可能会影响DUS测试结果,使得测试报告缺乏准确性。In order to elucidate the influence of different sowing dates on the DUS testing results of cucumber fruit characteristics,12 different types of cucumber varieties were used as test materials,and the DUS testing characteristics of cucumber fruit on two different sowing dates were collected.The result shows that under the environmental conditions of high temperature,high humidity,and intense solar radiation,there are extent changes in several of 21 VG(visual assessment by a single observation of a group of plants or parts of plants)characteristics of fruit.Differences of VG characteristics primarily occur in glaucosity,distribution of dots,color of sarcocarp,shape,shape of calyx end,ground color of skin,and bloom on the fruit.In addition,there are significant differences in 5 MS(measurement of a number of individual plants or parts of plants)characteristics,especially in length of fruit and length of fruit neck.Since the water and fertilizer management is almost identical on these two sowing dates,discrepancies in these DUS testing characteristics may partly result from the different meteorological conditions.Thus,higher standards on environmental control are put forward for the DUS test conditions of varying sowing dates.Otherwise,it may affect the DUS test results and reduce the accuracy of the test report.

关 键 词：黄瓜 播种时期 果实性状 DUS测试 

分 类 号：S642.2[农业科学—蔬菜学]