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一、选育经过1973年春季开始,在我所“迎春”品种大面积生产田中,选出21株优良单株,其中编号为73—17单株,性状表现突出,外叶10片,靠叶球一片叶子略有直立(迎春品种这片叶子为完全直立),早熟性强,选株当时(5月17日)叶球已开始崩裂。为了保证成活和增加采种量,对已选中的优良单株进行腋芽扦插,然后进行人工春化处理,当年自交采种。1974年春播种自交一代种子,从中选出13株优良单株,经春化后自交采种。1975年春播种自交三代种子,其中73-17-10株系表现特别好,从中
First, the breeding After the spring of 1973, in our “Spring” varieties of large-scale production of Tanaka, eleven strains were selected, of which 73-17 single plant, traits outstanding, 10 outer leaves, leaves The ball of a ball slightly upright (Yingchun varieties of this leaf is completely upright), precocious, selected strains (May 17) leaf ball has begun to crack. In order to ensure the survival and increase the amount of seeds, axillary buds have been selected for the excellent single plant cuttings, and then artificial vernalization, then self-seed collection. In the spring of 1974, the first generation self-seeding seeds were sowed and thirteen excellent single plants were selected from which they were selfed after vernalization. In the spring of 1975 sowing three generations of self-seeding seeds, of which 73-17-10 strains performed particularly well, from which