论文部分内容阅读
[目的]为龙粳22 的推广种植提供理论依据。[方法]通过比较龙粳22 和对照品种的生长和品质、抗病、抗冷指标,探讨了龙粳22 的生产潜力和推广价值。[结果]龙粳22 主茎11 片叶,生育期130 d 左右,需≥10 ℃活动积温 2 300 ℃左右; 幼苗长势强,秆强抗倒,耐寒;3 年区域试验平均产量8.37 t/hm2,比对照品种增产4.0%; 生产试验平均产量9.53 t/hm2,较对照品种平均增产 9.0%; 米质优良,各项指标均达国家优质米标准。[结论]龙粳22 熟期早、产量高、米质优,在黑龙江省第三积温带具有较好的推广应用前景。
[Objective] The research aimed to provide theoretical basis for the promotion of Longjing22. [Method] By comparing the growth and quality, resistance to disease and cold tolerance of Longjing 22 and its control varieties, the productive potential and promotion value of Longjing 22 were discussed. [Result] There were 11 leaves of main japonica 22 in Longjing 22, the growth period was about 130 days, and the accumulated accumulated temperature was about 2 300 ℃. The seedlings grew strong, the stalk was strong and fell down, and the average yield was 8.37 t / hm2 , 4.0% more than that of the control varieties. The average yield of the production test was 9.53 t / hm2, an average increase of 9.0% compared with the control varieties. The quality of the rice was good and all the indicators reached the national standard of high quality rice. [Conclusion] Longjing 22 had early maturity, high yield and good quality of rice, and had a good popularization and application prospect in the third accumulated temperature zone in Heilongjiang Province.