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针对龙特甫A具有配合力好、异交率高、制种产量高 ,但育性不稳定的特性 ,选用具有互补性状的地谷B、珍汕 97B与龙特甫B进行复合杂交 ,后代根据育种目标选株与珍汕 97A测交并经多代回交选育出不育性稳定且基本保留龙特甫A优良特性的新不育系T5 5A。用其与抗稻瘟病性强的恢复系蜀恢 5 37配制成的杂交稻新组合T优 5 5 37具有高产、稳产、抗稻瘟病性强等特性 ,于 2 0 0 2年 2月通过福建省农作物品种审定委员会审定 ,具有较好的推广应用前景
For Longtefu A with the characteristics of good combining ability, high outgrowth rate, high yield of seed production, but not fertility, we selected Digu B, Zhenshan 97B and Longtefu B with complementary traits to make hybrid crosses, and the offspring According to breeding target selected strains and Zhenshan 97A measured cross and backcrossing through multiple generations to select a new male sterile line T5 5A with sterility stability and the basic characteristics of Longtefu A being basically preserved. With its strong resistance to blast resistance Shuhui 5 37 formulated a new hybrid rice combination T you 5 5 37 with high yield, stable yield, strong resistance to blast and other characteristics, in February 2002 by Fujian Provincial Crop Variety Approval Committee validation, with good prospects for promotion and application