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

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...