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瑞丰A是以枝A为母本,Y华农B/22-6∥Y华农B的F3代优良单株作父本测交并逐代回交转育而成的优质籼型不育系。瑞丰A不育性稳定,不育株率和花粉不育度均为100%,可恢复性好,配合力强,开花习性好,异交结实率高,米质达国标优质稻谷3级标准,2008年12月通过海南省农作物品种审定。利用瑞丰A配制的杂交稻新组合在示范试种和区试中表现优良,其中瑞丰优616(瑞丰A/海恢616)于2010年5月通过海南省品种审定。介绍了其选育经过、特征特性和配组应用表现。
Ruifeng A is a high quality indica CMS line with the F3 generation of Y huonong B / 22-6 // Y Huonong B as the male parent and the female parent of the branch A as the female parent. Ruifeng A sterile stabile, sterile plant rate and pollen sterility are 100%, recoverability is good, with strong, good flowering habits, outcrossed seed setting rate, the quality of the rice quality GB 3 standard rice In December 2008, it passed the examination of Hainan crop varieties. The new hybrid rice combination prepared by using Ruifeng A performed well in demonstrational and regional trials. Among them, Ruifeng You 616 (Ruifeng A / Haixiu 616) passed the Hainan variety approval in May 2010. Introduced its breeding process, characteristics and performance with the group.