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海南播期对玉米DUS测试性状表达的影响
Effect of Sowing Dates on the Expression of Maize DUS Testing Characteristics in Hainan
投稿时间:2017-09-19  
中文关键词:玉米  播期  DUS测试  性状表达
英文关键词:Maize  Sowing date  DUS testing  Characteristic expression
基金项目:农业部品种保护项目子课题"植物新品种DUS测试和标准品种繁殖"(0313033)
作者单位
刘迪发 中国热带农业科学院热带作物品种资源研究所/农业部植物新品种测试儋州分中心, 海南 儋州 571737 
徐丽 中国热带农业科学院热带作物品种资源研究所/农业部植物新品种测试儋州分中心, 海南 儋州 571737 
高玲 中国热带农业科学院热带作物品种资源研究所/农业部植物新品种测试儋州分中心, 海南 儋州 571737 
张如莲 中国热带农业科学院热带作物品种资源研究所/农业部植物新品种测试儋州分中心, 海南 儋州 571737 
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中文摘要:
      以5个普通型品种和5个糯质型品种的玉米单交种为试验材料,设置3个播期处理,研究海南播期对玉米特异性、一致性和稳定性(DUS)测试性状表达的影响。结果表明,播期对玉米质量性状和假质量性状的表达无显著影响;播期对不同性状、不同类型、不同品种玉米数量性状的表达影响程度不同,对抽雄期、散粉期等8个性状的表达影响程度较大,对幼苗第一叶鞘花青甙显色强度、植株上部叶片与茎秆夹角等10个性状的表达影响程度较小,对雄穗最低位侧枝以上主轴长度、雄穗一级侧枝数目等15个性状的表达无显著影响。
英文摘要:
      With maize hybrid varieties including five kinds of common type and five kinds of glutinous type as experimental material, three sowing dates treatments were set to study the effect of sowing dates on the expression of maize distinctness, uniformity, and stability(DUS) testing characteristics in Hainan. The results showed that, there were no significant effects of sowing dates on the expression of maize qualitative and pseudo-qualitative characteristics; there had a different degree of the effects of sowing dates on the expression of quantitative characteristics from different characteristics, different types, and different varieties. Eight characteristics were greatly affected, including the tasseling stage, pollinating period. Ten characteristics were slightly affected, including the cyanin color intensity of the first leaf sheath of seedlings, angle of the upper leaves and stem of the plant. The other fifteen characteristics such as the length of the main shaft of the lowest lateral branch and the number of the primary lateral branches of the tassel were not significantly affected.
刘迪发,徐丽,高玲,张如莲.海南播期对玉米DUS测试性状表达的影响[J].玉米科学,2018,26(1):37~44
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