摘要
利用明恢76与Warylowa配组选育而成的亚恢420，是一个广亲和恢复系。它与珍汕97A、龙特甫A、1356S配组的组合，表现大穗多粒，结实率高、籽粒饱满，具有很强的营养优势和经济优势；经二年来多点试种示范，平均产量8241．1kg／hm2，比对照汕优63增产20．33％，已经达到亚种或亚亚种间杂种优势利用水平。
The Yahui 420 which was bred from the cross of Minghui 76 with Warylowa was a widecompatibility restorer line. The combination which were combined with Zhenxian 97A LTPA and13565 testcross Yahui 420, showing significant heterosis on biological and economical with large panicleand ed seed set persent. The averaged grain yield come to 8. 3 t/hm2 which was 20% higher by CK(Shanyou 63). The yeild had arrived to intersubspecific level.
关键词
水稻
亚种优势
三系配套
杂交育种
Rice
Wide compatibility
Restore line
intensubspecific heteresis
