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《Hybrid Rice》 2011-01
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Breeding and Application of Fine Grain Quality CMS Line Ruifeng A in Indica Rice

CHEN Hai-xiong1,LIN Heng-yi1,LIN Chang-he1,WANG Guo-hui2,WANG Dong-ye1, LIN Nan1,WANG Cai-jing1(1.Hainan Haiya Crop Winter Multiplication Seed Corporation Ltd.,Sanya,Hainan 572000,China;2.Bobai County Seed Administration Station,Bobai,Guangxi 537600,China)  
Ruifeng A is a new WA-type CMS line with good grain quality in rice,which is developed by crossing Zhi A to the selected F_3 plants from the cross of Y Huanong B/22-6∥Y Huanong B,followed by successive selection and backcross.It has a stable and complete male sterility with 100% of sterile plants and pollen sterility,good restorability,strong combining ability,good flowering habits and high outcrossing rate.Its grain quality is fine to meet the national standards of the third class of fine quality rice.Ruifeng A was certified and released by Hainan Provincial Crop Variety Appraisal Committee in December,2008.Its F_1 hybrid combinations showed strong tillering ability,good plant type,large panicles with many grains,high yield potential,fine grain quality,strong disease resistance and wide adaptability in demonstrations and regional trials.Among them,Ruifengyou 616(Ruifeng A/Haihui 616) was approved and registered for commercial production by Hainan Provincial Crop Variety Appraisal Committee in May,2010.The breeding procedure,major characteristics and utilization of Ruifeng A were introduced in the paper.
【CateGory Index】: S511.21
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