不同播期对糜子农艺性状、抗倒伏性状及产量的影响

The Effects of Different Sowing Dates on Agronomic Traits,Lodging Resistance and Yield of Prosomillet

为了研究播期对糜子生育期、农艺性状、抗倒伏性状及产量的影响,在内蒙古自治区通辽市农牧科学研究所试验基地以糜子品种通黍21为例,共设6个播期进行试验。结果表明,播期对生育期的影响主要在出苗至抽穗阶段,生育期随着播期的推迟而缩短。随着播期的推迟糜子的株高、主茎节数、主穗长等农艺性状指标值下降,抗倒伏能力增强。播期5月28日产量最高,达到3540.0 kg/hm~2;播期6月4日产量次之,为3430.0 kg/hm~2,因此通辽地区糜子适宜在5月28日至6月4日播种,不宜过早或过晚播种。

Six different sowing dates were set up to study the effects of sowing dates on the growth period,agronomic traits,lodging resistance traits,and yield of millet.The results showed that the impact of sowing date on the growth period was mainly from seedling emergence to heading stage,and the growth period shortened with the delay of sowing date.As the sowing date is postponed,the agronomic traits such as plant height,number of main stem nodes,and main spike length of the millet decrease,and the ability to resist lodging is strengthened.The highest yield was reached on May 28th,reaching 3 540.0 kg/ha;The sowing date is June 4th,followed by a yield of 3 430.0 kg/ha.Therefore,it is suitable to sow millet in the Tongliao Region from May 28th to June 4th,and it is not advisable to sow it too early or too late.