播期播量对豫中小麦生长发育及产量的影响姜丽娜.pdf

河南农业科学, 20 11, 40( 5) : 42-46 Jour nal of Henan Agri ultural S ien es 姜丽娜, 赵艳岭, 邵 云, 余海波, 贺 远, 李春喜Þ ( , 453007) : 以百农矮抗58 为材料, 采用裂区试验设计, 探讨了播期播量对豫中生态环境下高 小麦群 体与 个体生长发育及 量的影响结果表明, 播期对小麦单茎干物质积累的影响显著, 播量对其影 响不显著, 晚播@ 小播量处理下, 小麦单茎干物质积累量在成熟期表现最高( 4. 039 g) 播期对小 4 2 麦群体数量的影响显著, 早播处理下的小麦有效群体最大( 700. 83@ 10 株/ hm ) , 晚播处理下的有 效群体最小, 但成穗率最高( 4 1. 8% ) , 播量对其影响不如播期明显播期对小麦籽粒干物质积累有 显著影响, 且对灌浆速率的影响远大于播量的影响, 适当晚播有利于灌浆期保持较高的灌浆速率, 提高粒质量播期对小麦成穗数穗粒数及 量的影响均达显著或极显著水平, 而播量对 量及 量性状影响不大综上, 豫中生态环境下, 百农矮抗58 采用晚播@ 小播量模式有利于其群 个体的 发育, 获得高 : 小麦; 豫中; 播期; 播量; 生长发育: 量 : S512. 1 : A : 1004-3268( 20 11) 05-0042-05 Influen es of Sow ing T ime and Density on Grow th and Yield of Wheat in M id Henan JIANG L-i na, ZHAO Yan-ling , SHAO Yun, YU Ha-i bo, HE Yuan, LI Chun-x iÞ ( College of Life S ien es, Henan Normal University, Xinx iang 453007, China) Abstract: With / AK 580 as experimental materials, influen es of sow ing time and density on the grow th and development of population and individuals of high-y ield w heat w ere studied in mid Henan pr ovin e during 2009- 2010. In the experiment, split plot design w as used w ith sow ing time in the main plots and sow ing density in the sub-plots. T hr ee sow ing dates of earlier time, th th middle time and later time w ere separately arranged on 12 O tober, 19th O tober, and 26 O to- ber. U nder ea h sow ing time, three sow ing densities w ere randomly settled, orresponding to 4 4 4 basi seedl