Breeding and Matching Technology of a New Hybrid Maize Variety Bayou999
Baoyu 999,a new hybrid maize variety,was crossed by female parent QS089 and introduced male parent QB48,and approved by Guizhou Crop Variety Approval Committee in June,2012.The two-year average yield was 9 231 kg/hm2 ,8.15% higher than CK,the yield increasing rate reached 88.9%.In production test the average yield was 8 587 kg/hm2 ,7.94% higher than CK,the yield increasing rate reached 100%.This variety was resistant to leaf blight,banded sclerotial blight,moderately resistant to southern leaf blight,head smut and European corn borer.While sensitive to stem rot.It was suitable to plant in Guizhou mountainous area and similar ecological region for its strong lodging resistance,good yield stability and yielding ability.
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