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为分析不同气候条件下粳稻的适应性、产量表现、光温资源利用特性,研究不同气候条件对产量的影响规律,湖北省夷陵区农业技术推广中心于2014年完成了粳稻分期播种试验。结果表明,4月中下旬是当地水稻最适播种期,甬优4949的产量显著优于其余品种,且延迟播种丰产性也好,适宜推广。1材料与方法试验地位于湖北省宜昌市夷陵区鸦鹊岭镇白河村,30°12′N,111°36′E,海拔115 m,白散泥田,种植模式为油菜-中稻。试验设4个品种6个播期,共24个处理。供试品种为,A(常规籼稻黄花粘)、B(杂交籼稻扬两优6号)、C(杂
In order to analyze the adaptability of japonica rice, yield performance, light and temperature resource utilization characteristics under different climatic conditions, and study the influence of different climatic conditions on the yield, the Agricultural Technology Extension Center of Yiling District of Hubei Province completed the sowing experiment of japonica rice in 2014. The results showed that the mid-to-late April was the most suitable sowing date for local rice. The yield of Yongyou 4949 was significantly better than that of the other varieties, and the delayed sowing was of high yield and suitable for popularization. MATERIALS AND METHODS The experimental site was located in Baihe Village, Yaqiaoling Town, Yiling District, Yichang City, Hubei Province. It was at an altitude of 115 m with an elevation of 30 ° 12’N and 111 ° 36’E. The planting mode was rape-medium rice. The experiment set 4 varieties of 6 sowing date, a total of 24 treatment. The tested varieties were A (conventional indica yellow sticky), B (indica hybrid rice Yangliangyou 6), C