CAJ | 학술논문

为了明确冀南麦区冬小麦品种邯麦14号的适宜播期和密度，采用裂区试验设计，以播种期为主区、种植密度为副区，研究了不同播期（10月10日、15日和20日）和密度（270万株/hm2、345万株/hm2、420万株/hm2和495万株/hm2）对小麦产量及其构成因素的影响。结果表明：播期对穗粒数和千粒重影响较小，对单位面积穗数和产量影响极显著；密度对产量及其构成因素均有显著影响；播期与密度互作对产量和单位面积穗数均有显著影响。通径分析结果显示，在不同播种期和种植密度条件下，单位面积穗数对产量的直接贡献最大，其次是穗粒数，千粒重对产量的直接贡献最小。本研究条件下，邯麦14号的适宜播种期为10月10~15日、基本苗密度为345万~420万株/hm2。
위료명학기남맥구동소맥품충함맥14호적괄의파기화밀도，채용렬구시험설계，이파충기위주구、충식밀도위부구，연구료불동파기（10월10일、15일화20일）화밀도（270만주/hm2、345만주/hm2、420만주/hm2화495만주/hm2）대소맥산량급기구성인소적영향。결과표명：파기대수립수화천립중영향교소，대단위면적수수화산량영향겁현저；밀도대산량급기구성인소균유현저영향；파기여밀도호작대산량화단위면적수수균유현저영향。통경분석결과현시，재불동파충기화충식밀도조건하，단위면적수수대산량적직접공헌최대，기차시수립수，천립중대산량적직접공헌최소。본연구조건하，함맥14호적괄의파충기위10월10~15일、기본묘밀도위345만~420만주/hm2。
In order to clarify suitable combination of sowing date and seeding density of Hanmai No.14 in southern of Hebei Province, a experiment with split plot design was conducted in Handan County. The main plots were three sowing dates of October 10, 15 and 20, and the split plots were four seeding densities of 270í104, 345í104, 420í104 and 495í104 seedlings/hm2, the effects of sowing date and seeding density on yield and yield components of Hanmai No.14 were studied.The main results showed that sowing date had a smaller effect on grain number per spike and 1 000 grain weight, but the effect on grain yield and spike number were very significant.The effect of seeding density on yield and yield components were all significant statistically.The interactions of sowing date and seeding density on yield and spike number were significant. According to the results of correlation and path analysis, in different sowing dates and seeding densities,spike number had the greatest direct effect on yield,the second was grain number per spike, and the 1 000 grain weight had the smallest.The most suitable sowing date is from Oct.10 to Oct.15,and the suitable seeding density is from 345í104 to 420í104 seedlings/hm2.