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滇杂33是用滇Ⅰ型不育系榆密15A与新育成的优良恢复系滇农R-3组配而成的滇型杂交粳稻新组合,具有杂种优势强、丰产性好、米质较优、适应性广等特点,2004年10月通过云南省农作物品种审定。介绍了该组合的选育过程、特征特性、栽培及制种技术要点。
Yunnan Dianza 33 is a new type of Dian-type japonica hybrid rice with Dian-Nian 15A of Yunnan type Ⅰ sterile line and Diannong R-3, a newly developed fine restorer line. Dianza 33 is characterized by its strong heterosis, high yield and good quality. Excellent, wide adaptability and other characteristics, in October 2004 through the crop varieties in Yunnan Province validation. The breeding process, characteristics, cultivation and seed production techniques of this combination are introduced.