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去年赣州地区早稻栽培的杂交水稻矮优一号、三号一般有22—41％的杂株,矮优二号作晚稻栽培,据我们所内调查不育株率12％。这些杂株中,主要是高不育株、半不育株,而可育株不多。汕优二号作早晚稻栽培仅有1％左右的杂株。这一情况的出现,固然是制种工作中除杂不够细致。而对提供制种的不育系(及恢复系)种子不纯是重要
Last year, Ganzhou prefecture hybrid rice hybrid rice shorty one, the third is generally 22-41% of the hybrid plants, shortyou 2 for late rice cultivation, according to our investigation of sterile plant rate of 12%. These hybrids, mainly high-sterile lines, semi-sterile lines, and few fertile plants. Shanyou 2 for morning and evening rice cultivation only about 1% of the hybrid. The emergence of this situation, of course, is not enough detailed seed production. It is important to impure seeds for the CMS (and restorer lines) that provide seed production