We pyramided Xa23, Bph14 and Bph15 genes into an elite restorer line Huazhan.
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All improved lines with these three genes had high-level resistance to BB & BPH.
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Most of their derived hybrids with TianfengA had high-level resistance to BB & BPH.
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TianfengA/R43-06 and TianfengA/R43-07 had higher yield potential than the control.
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These two hybrids could replace Tianyouhuazhan in BB and/or BPH epidemic areas.
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