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玉米自交系“春553”是由长春市农业科学院选育而成。它具有配合力高、抗逆性强、适应性广、综合农艺性状好等特点,已组配出晚熟品种长单374、中晚熟品种长单228、中熟品种长单506(生产试验中)。1 选育经过春553是长春市农业科学院1987年以“黄早4×曲43”为基础材料,经5
Spring inbred line “Spring 553” is bred from Changchun Academy of Agricultural Sciences. It has the characteristics of high combining ability, strong resistance, wide adaptability and good agronomic traits. It has been formulated with the long-term cultivar Changdan 374, the middle-late matured cultivar Changshan 228 and the middle matured cultivar Changdan 506 (in the production test) . 1 Breeding Spring 553 is the Changchun Academy of Agricultural Sciences in 1987 to “Huang early 4 × song 43” as the base material, after 5