CAJ | 학술논문

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。
연구료불동파기파량대신맥23생육기、주고、산량급기구성인소적영향。결과표명：재일정범위내，수파기추지，산량화공경수수축점감소，주고강저，수립수유감소추세단차이불대，천립중축점증가；수파량증가，공경수수축점증가，주고승고，이수립수정하강추세，천립중무명현변화；불동파량대산량적영향표현위10월10일、10월18일파충적균이파량180 kg／hm2적최고，10월25일파충적3개처리간산량차이교소。총지，해품충재시험점상사지구적최가파기위10월18일，최가파량위180 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/hm2 .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/hm2 respectively under the test conditions .