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绵9S是绵阳市农科所杂交选育的新资源实用型两用核不育系。它具有不育起点温度低(23℃以下)、光敏温度范围较宽(27℃以下)、不育期长 (在四川绵阳为55天以上)、配组组合优势强等特点。经西南农业大学人工气候箱鉴定,23℃/14.5小时的低温日和28℃的高温短日处理,花粉败育度和套袋自交不育率均达100% ;在绵阳、峨嵋山的万年寺、宜宾、内江等地分期播种, 7月中下旬始穗基本处于无花粉型, 9月20日左右开始转可育; 在海南省陵水县短光照下, 9月下旬至次年3月均可育, 结实率60% 左右。
Mian 9S is Mianyang City Agricultural Institute of hybrid breeding new resources practical dual-purpose nuclear sterile line. It has a low starting point of infertility (below 23 ℃), a wide range of photosensitive temperature (below 27 ℃), a long sterile period (more than 55 days in Mianyang of Sichuan Province) and strong combination of combinations. The results of artificial climate chamber of Southwest Agricultural University showed that the rate of pollination and bagging self-fertility reached 100% both in low temperature at 23 ℃ / 14.5 hours and short days at 28 ℃. In Mianyang, Year Temple, Yibin, Neijiang and other places sown in mid-to late late July ear basically in the pollen-free, beginning around September 20 turn fertile; in Lingshui County, Hainan Province, short-term light, from late September to next year 3 The average monthly fertility, seed set rate of about 60%.