[1]师 臣,谭福忠,郑 巍,等.种植密度对大庆地区早熟玉米杂交种产量及穗部性状的影响 [J].黑龙江农业科学,2015,(09):35-37.[doi:10.11942/j.issn1002-2767.2015.09.0035]
　SHI Chen,TAN Fu-zhong,ZHENG Wei,et al.Effect of Planting Density on Yield and Ear Traits of Early Maturity Maize Hybrids in Daqing Areas[J].HEILONGJIANG AGRICULTURAL SCIENCES,2015,(09):35-37.[doi:10.11942/j.issn1002-2767.2015.09.0035]
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种植密度对大庆地区早熟玉米杂交种产量及穗部性状的影响

《黑龙江农业科学》[ISSN:1002-2767/CN:23-1204/S] 卷: 期数: 2015年09 页码: 35-37 栏目: 出版日期: 2015-09-10
Title:
Effect of Planting Density on Yield and Ear Traits of Early Maturity Maize Hybrids in Daqing Areas
文章编号:
1002-2767（2015）09-0035-03
作者:
黑龙江省农业科学院 大庆分院，黑龙江 大庆 163316
Author(s):
SHI Chen; TAN Fu-zhong; ZHENG Wei; CUI Hong-qiu; XU Lei; YANG Liu
Daqing Branch of Heilongjiang Academy of Agricultural Sciences,Daqing,Heilongjiang 163316

关键词:
种植密度; 大庆地区; 早熟玉米; 产量; 穗部性状
Keywords:
planting density; Daqing areas; early maturity maize; yield; ear traits ' target="_blank" rel="external">">
分类号:
S513
DOI:
10.11942/j.issn1002-2767.2015.09.0035
文献标志码:
A
摘要:
为了挖掘玉米栽培品种的产量潜力，从而筛选出适合大庆地区种植的早熟玉米品种的适宜种植密度。采用二因素裂区试验，选用克单14、克玉15、庆1337和庆1448四个玉米早熟杂交种，设置5.0万、7.5万、10.0万、12.5万和15.0万株·hm-2五个种植密度，分析不同种植密度对各品种产量和穗部性状的影响。结果表明: 产量受种植密度影响较大，适当提高种植密度可以显著提高玉米产量，参试品种最适种植密度在10.0万~12.5万株·hm-2；密度对穗部性状的影响在不同参试品种间表现趋势相近，千粒重、穗长和穗粗基本都随种植密度增大而显著减小，秃尖长度（除克单14外）均随种植密度增大而增大。
Abstract:
In order to excavate maize varieties yield potential,to screen rational planting density of early maturity maize varieties in Daqing areas.The early maturity maize hybrids Kedan14,Keyu15,Qing1337 and Qing1448 were tested for different planting densities.Five planting densities for these varieties were tested,they were 50 000,75 000,100 000 and 125 000 and 150 000 plants·hm-2.The results showed that yield might be increased obviously if planting density be increased suitably.Every variety had the most suitable density.The yields of tested maize hybrids were the highest in 100 000 and 125 000 plants·hm-2density；The effects of planting density on ear traits of different density tolerant varieties were the same roughly.The 1 000 kernel weight，ear length and ear diameter of four varieties increased with planting density increasing.The bald length (in addition to Kedan14) reduced with planting density increasing.

参考文献/References:

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备注/Memo

收稿日期：2015-05-14

第一作者简介：师臣（1980-），男，黑龙江省哈尔滨市人，学士，助理研究员，从事玉米育种研究。E-mail:shichen53849981@sina.com。

更新日期/Last Update: 2016-04-05