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杂交粳稻发展20多年来,种植面积一直不大,究其原因是多方面的,研究的人力、财力、物力不足没有理想的组合,可能是最为关键的.江苏省淮阴市农科所与北方杂粳中心合作,通过不同生态区之间的引种,育成较为理想的泗优418的组合,属早熟晚粳.1997～1998年参加江苏省杂交中粳区试,两年汇总平均9.52t/hm~2,比对照武育粳3号增产8.43%,比对照九优138增产8.8%,均达极显著水平.经稳定性测验,两年回归系数分别为1.0874、1.1831,略低于平均稳定.1999年4月通过江苏省农作物品种审定委员会审定.该组合突出的优点:米质好,产量高,抗稻瘟病和白叶枯病,且耐肥抗倒.
For more than 20 years of hybrid japonica rice cultivation, the area under cultivation has not been large, for many reasons, and the lack of ideal combination of human, financial and material resources may be the most crucial. Japonica center, through the introduction between different ecoregions, bred a better combination of Siyou 418, is a precocious late japonica .From 1997 to 1998 to participate in Jiangsu Province hybrid japonica test, the two-year summary of an average of 9.52t / hm ~ 2, which was 8.43% higher than the control Wuyujing 3 and 8.8% more than that of the control Jiuyou 138. After the stability test, the two-year regression coefficients were 1.0874,1.1831, slightly lower than the average. In April through the Jiangsu Provincial Crop Variety Certification Committee examined and approved the combination of outstanding advantages: good quality rice, high yield, resistance to rice blast and bacterial leaf blight, and resistant to lodging.