自1993年以来,宁67一直是我市的主栽品种,为我市的粮食生产作出了很大贡献,但由于该品种已种植多年,种性开始退化,急需一只优良新品种来接替。甬粳18是宁波市农科所以丙89—84//甬粳33/甬粳23为组合选育的晚粳新品系,我市1996年引入试种,在全市五个品比点11只品种中产量名列前茅,平均667平方米产量498.2公斤,比宁67增产7.3%,其它性状良好,于是1997年作为重点试种示范品系,对其进行适应性试验研究。 Since 1993, Ning 67 has been a major variety in the city and contributed greatly to the city’s grain production. However, due to the variety planted for many years, its species began to degenerate and an excellent new variety was urgently needed to succeed. Ningbo Japonica 18 is a new late japonica rice line which is selected from Ningbo 8939, Ningbo 39, and Ningbo 39 by Ningbo Agricultural Science and Technology Bureau. Ningbo City introduced test plantation in 1996, and 11 varieties Among the top middle-yielding crops, the average output of 667 square meters was 498.2 kilograms, 7.3% higher than that of Ning-ning 67 and other traits were good. As a result, the 1997 pilot plant was used as a pilot cultivar to conduct adaptive experiments.