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K优117系温州市农科院浙南水稻育种中心用自育的大穗型强恢复系温恢117与四川省引入的不育系K17A配组选育成的大穗型杂交中籼新组合。该组合已通过温州市区试和生产试验。多年试种表明,K优117具有穗大粒多、丰产稳产、米质较好、适应性广、易于制种等特点。为扩大生产示范,推广新组合,摸索该组合制种高产技术,我公司于2000年在本地进行试制种,制种面积36亩,取得了初步成功。现将该组合制种技术总结如下:
K You 117 Department of Southwest China Rice Breeding Center, Wenzhou Academy of Agricultural Sciences The large-panicle hybrid mid-indica rice combination was bred with Wenhui 117, a self-primed large-spike type restorer and the CMS line K17A, introduced in Sichuan Province. The combination has passed the Wenzhou City trial and production test. Tests for many years showed that K You 117 has the characteristics of large spikelets, high and stable yield, good quality, wide adaptability and easy seed production. In order to expand production demonstration, popularize new combination and explore the high-yielding technology of hybrid seed production, our company conducted trial production of seed in 2000 in our country with a seed production area of 36 mu and achieved initial success. The combined seed production technology is summarized as follows: