甜玉米果穗不同计产方法对产量评价的影响  

Effects of Different Ear Yield Calculating Methods on Yield Evaluation in Sweet Corn

作　　者：刘萍[1] 陆大雷[2] 孙建勇[3] 陆卫平[2] 

机构地区：[1]扬州环境资源职业技术学院,江苏扬州225127 [2]扬州大学/江苏省作物栽培生理重点实验室,江苏扬州225009 [3]江苏省扬州市农业局,江苏扬州225002

出　　处：《玉米科学》2010年第5期137-141,共5页Journal of Maize Sciences

基　　金：江苏省作物栽培生理重点实验室开放课题(02738800372);北京市自然科学基金(YZPT02-06)

摘　　要：以30个鲜食甜玉米品种为试材,研究果穗不同计产方法(第1果穗计产、所有果穗计产和商品果穗计产)对产量评价的影响。结果表明,3种计产结果在甜玉米不同品种间存在极显著差异,第1穗净果穗计产结果比商品穗产量高0～35.78%(除个别品种外);所有净穗计入产量结果比商品穗产量高0.08%～35.78%,且各百分率在不同品种间存在差异,以商品果穗计产比较科学。商品果穗标准为非霉变果穗,除去苞叶、花丝、穗柄、虫咬、损伤、秃尖及秃基部分的完好净穗有效长度至少不短于10cm的果穗。In this study,yield with the first ear excluding bract and pedicel,yield with all net ears including bract and pedicel,and the commercial ear yield were detected at 21 days after pollination in a randomized complete block design using 30 sweet corn cultivars.The results showed that among various ear yield calculating methods,the yield was 0-35.78%higher than the commercial ear yield when it was calculated with the first ear excluding bract and pedicel.The yield was 0.08%-35.78%higher than the commercial ear...

关 键 词：甜玉米 商品果穗标准 果穗计产方法 产量评价 

分 类 号：S513[农业科学—作物学]