摘要
研究了不同播期播量对新麦23生育期、株高、产量及其构成因素的影响。结果表明:在一定范围内,随播期推迟,产量和公顷穗数逐渐减少,株高降低,穗粒数有减少趋势但差异不大,千粒重逐渐增加;随播量增加,公顷穗数逐渐增加,株高升高,而穗粒数呈下降趋势,千粒重无明显变化;不同播量对产量的影响表现为10月10日、10月18日播种的均以播量180 kg/hm2的最高,10月25日播种的3个处理间产量差异较小。总之,该品种在试验点相似地区的最佳播期为10月18日,最佳播量为180 kg/hm2。
Different sowing dates and seeding rates were designed to study their effects on the growth pe- riod, plant height, yield and its components of Xinmai 23. The results showed that with the delay of sowing date in a certain range, the yield and spike number per hectare decreased gradually, the plant height de- clined, and the grain number per spike had decreasing trend with no significant difference, but the 1 000 - grain weight increased gradually. With the increase of seeding rate, the spike number per hectare and plant height increased, while the grain number per spike showed decreasing trend; the 1 000 - grain weight had no obvious change. When sowing on October 10 or 18, the highest yield could be obtained under the treatment with the seeding rate as 180 kg/hm^2. When sowing on October 25, the effect of seeding rate on yield was lit- tle. In a word,the optimal sowing date and seeding rate were October 18 and 180 kg/hm^2 respectively under the test conditions.
出处
《山东农业科学》
2015年第5期37-39,共3页
Shandong Agricultural Sciences
基金
国家现代农业产业技术体系建设专项(CRAS-3-2-35)
2013年河南省重大科技专项
关键词
新麦23
播期播量
产量
Xinmai 23
Sowing date and seeding rate
Yield
作者简介
李晓航（1987-），女，河南安阳人，硕士，研究实习员，主要从事小麦育种栽培研究。E-mail：1i．xiaohang@163．com
