【摘要】 为了解影响小麦生长及产量的因素,以小麦品种烟农173为材料,研究了不同种植密度对其产量及光合特性的影响。结果表明,以处理2(D2)产量最高,达10976.8kg/hm~2;说明烟农173最适宜的种植密度是基本苗为210万/hm~2。在此密度下,植株叶片保持良好的受光面积,养分吸收充分,光合作用时间较长,干物质积累多,营养向籽粒转运多,最终产量高。更多还原

【Abstract】 There are many factors affecting the growth and yield of Wheat. In this study,the effects of planting density on the yield and photosynthetic characteristics of a wheat cultivar Yannong 173 were studied. The results showed that the density of 21×105/hm~2(D2)was the best suitable for the growth of the new wheat cultivar Yannong173 which the yield was 10976.77 kg/hm~2.Through this experiment,the planting density suitable for the growth of new wheat variety Yannong 173 was selected,which provided theoretical basis and research basis for future breeding workers.更多还原