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k优619系温州市农科所利用k17不育系与籼粳型恢复系c619测配而成的早杂新组合,经近几年的试验、示范,各地表现良好。该组合与我市主栽组合汕优48—2等相比,具有熟期适宜、产量高、抗性较强、米质较好和容易制繁种等优点,是一个综合性状较好,有发展潜力的早杂新组合。为了给今后大面积推广应用提供科学依据,我们特在温州市农科所、苍南吴家库、瓯海永兴镇以及文成珊溪镇等设试验点,对其播种量、密植程度、本数、需肥量以及育秧方法进行了初步探讨。
k You 619 Department of Agricultural Science and Technology, Wenzhou City, k17 sterile lines and lines with indica japonica restorer c619 test the new combination of early miscellaneous, after several years of testing, demonstration, all over the good performance. Compared with the main combination of Shanyou 48-2 in our city, the combination has the advantages of suitable maturity, high yield, strong resistance, good quality and easy breeding, and is a comprehensive trait with Potential for the development of a new mix of early miscellaneous. In order to provide scientific basis for the popularization and application of large area in the future, we specially set test points in Wenzhou Agricultural Science Institute, Cangnan Wujiaku, Yongxing Town in Ouhai and Wencheng Shaxi Town. Quantity and method of raising seedlings were discussed.