【摘要】 桂源A是广西农业科学院水稻研究所以龙特浦B/H14//H14的F3代优良单株与博A测交,并经过连续多代回交转育而成的籼型三系不育系,2010年9月通过广西区品种审定委员会技术鉴定。该不育系分蘖力强,穗大粒多,生育期较短,不育性稳定,柱头外露率高,异交结实率高,对"九二○"敏感,容易繁殖和制种。更多还原

【Abstract】 Guiyuan A,developed from the cross of Bo A/（Longtepu B/H14∥H14）F₃ and its subsequent backcrosses by the Rice Research Institute of Guangxi Academy of Agricultural Sciences,is a new indica CMS line in hybrid rice.It was technically certified in Guangxi in September,2010.It is characteristic of strong tillering ability,large panicle with many spikelets,short growth duration,stable and complete male sterility,high stigma exsertion,high out-crossing rate,good sensitivity to GA₃ and easiness for multiplication and hybrid seed production.The F₁ hybrids derived from Guiyuan A and several restorer lines showed a higher yield than the control hybrids with similar maturity in a preliminary yield trial in 2010.更多还原