CAJ | 학술논문

为了确定大面积推广的小麦品种郑麦7698的适宜播期，研究了不同播期对其群、个体及产量的影响。结果表明，随着播期推迟，植株高度下降，主茎出叶减少；播期与穗数、产量呈显著的负相关关系，r分别为-0．935**、-0.886*，经回归分析建立的回归模型分别为：y （穗数）＝759.8-40.2 x、y （产量）＝10827-552.7 x。在播量为150 kg/hm2的条件下，郑麦7698适宜播期为10月10-15日，此期播种有利于形成合理的群体结构，实现较高的经济产量和效益。
위료학정대면적추엄적소맥품충정맥7698적괄의파기，연구료불동파기대기군、개체급산량적영향。결과표명，수착파기추지，식주고도하강，주경출협감소；파기여수수、산량정현저적부상관관계，r분별위-0．935**、-0.886*，경회귀분석건립적회귀모형분별위：y （수수）＝759.8-40.2 x、y （산량）＝10827-552.7 x。재파량위150 kg/hm2적조건하，정맥7698괄의파기위10월10-15일，차기파충유리우형성합리적군체결구，실현교고적경제산량화효익。
To provide the suitable sowing date for wheat variety Zhengmai 7689 ,the effects of dif-ferent sowing dates on the development of individuals and population and grain yield of Zhengmai 7698 were studied .The result showed that ,with the postponement of sowing date ,the plant height and leaf number of main stem in Zhengmai 7698 reduced .The sowing date had the signifi-cant negative correlation with the ear number and the yield ,the correlated coefficients being-0.935**and -0.886*,respectively .Based on the regression analysis ,the regression model of Zhengmai 7698 was established :y(ear number)=759 .8-40 .2x ,and y(yield)=10 827-552.7x . When the sowing rate was 150 kg/ha ,the suitable sowing date of Zhengmai 7698 was from 10th to 15th of October ,which was beneficial to forming the reasonable population structure ,and achieving the higher economic production and efficiency .