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王振华,王宏富,刘鑫,王彦雯,张蕙祺,黄甫瑞,等.播种深度对谷子出苗率及干物质积累的影响[J].农学学报,2017,7(9):6-13.,et al.Effects of Sowing Depth on Seeding Emergence Percentage and dry matter accumulation in Millet[J].Journal of Agriculture,2017,7(9):6-13
播种深度对谷子出苗率及干物质积累的影响
Effects of Sowing Depth on Seeding Emergence Percentage and dry matter accumulation in Millet
投稿时间:2017-05-15  修订日期:2017-06-30
DOI:10.11923/j.issn.2095-4050.cjas17050018
中文关键词: 播种深度  谷子  出苗率  干物质积累
英文关键词: Sowing Depth  Millet  Seedling Emergence Rate  Dry matter Accumulation  Effect
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基金项目:Filament Vigor; Artificial Pollination; 100 Grain Weight; Spike Grain Number; Spike Grain Weight
作者单位E-mail
王振华 山西省农业科学院谷子研究所 331673268@qq.com 
王宏富 山西农业大学农学院 ndwhf@126.com 
刘鑫 山西省农业科学院谷子研究所 nkygzslx@163.com 
王彦雯 山西农业大学农学院 490694970@qq.com 
张蕙祺 山西农业大学农学院 416897164@qq.com 
黄甫瑞 山西农业大学农学院 1554784227@qq.com 
中文摘要:
      为了明确谷子的适宜播种深度,观察不同谷子品种对不同播种深度的耐深播差异。笔者调查了在2cm、5cm、8cm三种播种深度,对晋谷21号、长谷1501和长生07号三个品种出苗率和干物质积累的影响。结果表明,随播种深度增加各品种的出苗率均呈下降趋势;在8cm播深时,长谷1501比较其他两个品种出苗率高。三个谷子品种,干物质积累速率均呈“慢-快-慢”的模式,其高峰期均在灌浆期;8cm播深时干物质量都要比在2cm和5cm时的要低,但在此播深时长谷1501比较其他两个品种干物质积累量较好,且8cm播深时长谷1501经济系数更有优势。从出苗率、干物质积累量和经济系数的结果可推测得知:谷子最适宜种植深度在2-5cm之间,长谷1501较其他两个品种更耐深播;播种深度对出苗率及干物质积累均有较大影响。
英文摘要:
      This study aims at determining the optimum sowing depth of millet and observing the deep-sowing tolerant difference among different millet varieties under different sowing depth. The authors investigated three sowing depth (2 cm, 5 cm, 8 cm) in this study, and studied their effects on the seedling emergence rate and dry matter accumulation in‘Jingu 21’,‘Changgu 1501’and‘Changsheng 07 ’. The result showed that the seedling emergence rate decreased with the increase of sowing depth. The emergence rate of‘Changgu 1501’ was higher than that of the other two varieties at 8 cm sowing depth. The rate of dry matter accumulation of the three varieties all showed a“slow- fast- slow”model; the peak was at the grain filling stage. Dry matter accumulation of all varieties at 8 cm sowing depth was lower than that of the other two sowing depth. At this sowing depth, dry matter accumulation of‘Changgu 1501’was higher than that of the other two varieties, and the economic coefficient of‘Changgu 1501’was better. Taken together, the optimum sowing depth is 2-5 cm, ‘Changgu 1501’has better deep-sowing tolerance, and the sowing depth has significant effects on seedling emergence rate and dry matter accumulation of millet.
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