Comparative study on yield and disease resistance of several forage corn in northeast Yunnan
[Objective]Corn silage,known for itshigh feeding value,isan important feed crop.This study aims to select new silage maize varieties suitable for popularization and planting in northeast Yunnan.[Method]Using YY 04889 as the control variety,this study compared the yield and disease resistance of several silage maize varieties,in-cluding YY04889(CK),QC30,QC31,QC 32,QC 33,QC 34 and QC 35,in 2018. Data collection methods were based on regional trials and published literaturefromYunnan Province. In 2019,the comparison was continued with YY 04889,QC31,QC32 and QC 33 to analyze yield and disease resistance further.[Result]The study found that QC 32 demonstratedcompact growth among all varieties. In 2018,QC 32 had the highest dry matter yield,followed by QC 33,QC 34,QC 31,QC30 and QC 35.QC 32 maintained the highest dry matter yield in 2019.In the first year,YY 04889 showedthe poorestresistance to gray spot disease,whilein the following year,the resistance of all varieties was consistent.[Conclusion]Considering agronomic traits,disease resistance and yield,QC 32 is the most suitable for silage cultivation in northeast Yunnan.
万方数据
维普
