辽宁省水稻中晚熟种植区域品种类型选择的初步分析

以辽宁省2007年中晚熟水稻区域试验参试品种为分析材料,分析了不同试验点产量水平、不同产量水平产量及产量结构的差异,不同试验点高产品种产量及产量结构差异。结果表明,选择适宜的高产品种对各生态区水稻产量有重要影响,在不同生态区水稻增产途径有一定的差异,辽阳、鞍山、海城、沈阳农大试区更适宜种植穗数、穗粒兼顾型高产品种,大石桥、辽宁省盐碱地所、西海试区更适宜种植穗数型高产品种,辽宁省稻作所试区更适宜种植穗重型高产品种。

Primary Analysis on Rice Variety Type Selection at Mid-Late Planting Area in Liaoning

With entries in mid-late regional yield test in Liaoning in 2007 as entries,the yield levels of different locations,the difference of yield and yield structure at different locations were analyzed.The results showed that it is important to select suitable type of rice varieties at different rice planting area and there existed difference in yield increasing approach,for example,it is easy to obtain high yield to maintain sufficient population size with big panicle and sufficient spikelets per panicle in Lia...