李媛媛，杨恒山，张瑞富，邢昌令，毕文波，李 国红，王翠花.高密种植下4个春玉米品种受光态势及光合特性比较研究[J].干旱地区农业研究,2013,31(5):69~73
高密种植下4个春玉米品种受光态势及光合特性比较研究
Comparison research on light penetration and photosynthesis traits of four spring maize varieties under planting high density
  
DOI：10.7606/j.issn.1000-7601.2013.05.011
中文关键词:  高密种植  春玉米  受光态势  光合特性  产量
英文关键词:high density planting  spring maize  light penetration  photosynthesis traits  yield
基金项目:国家科技支撑计划（2011BAD16B13）；内蒙古民族大学科研创新团队基金（NMD1003）；内蒙古民族大学校内项目（NMD1166、NMD1111）
作者单位
李媛媛1，杨恒山1，张瑞富1，邢昌令2，毕文波1，李 国红1，王翠花1 （1.内蒙古民族大学农学院， 内蒙古 通辽 028042； 2.通辽市农业技术推广站， 内蒙古 通辽 028042) 
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中文摘要:
      在高密（9.26万株·hm-2）种植条件下，研究了4个春玉米品种（内单314、宁玉3 09、金山116、金山20）的受光态势及光合特性。结果表明：单株叶面积以内单314最大，且 棒三叶及以上层位叶片的分布比例在4个春玉米品种中均最高；4个春玉米品种不同层位叶向 值总体表现为棒三叶上＞棒三叶下＞棒三叶，其中棒三叶上以及棒三叶均以内单314最大， 以宁玉309最小，棒三叶下以金山20最大，金山116次之，内单314最小；不同生育时期光合 势以吐丝至乳熟期最大，品种间表现为内单314＞宁玉309＞金山116＞金山20；净光合速率 除08∶00以外，其它各时段均以内单314最高；平均瞬时光能利用率以内单314最大，宁玉30 9次之，金山20最小；在4个春玉米品种中，内单314受光态势好，光合能力强，产量最高， 是试验所在地西辽河平原高密栽培的首选品种。
英文摘要:
      Light penetration and photosynthesis characteristics of four spring ma ize（neidan314、ningyu309、jinshan116、jinshan20） were studied under planting h igh density (9.26×104 plants·hm-2). The results showed that the leaf area per plant of neidan314 was largest, and distribution proportion of three e ar leaves and above layer of neidan314 were highest. Leaf orientation value in d ifferent layers of the four varieties of spring maize were above three ear leav es>under three ear leaves>three ear leaves,which above three ear leaves and t hree ear leaves were maximum in neidan314, and which were minimum in Ningyu309, but under three ear leaves was largest in jinshan27, next to jinshan116 and w hich was minimum at neidan314. Leaf area duration in different growth stages wer e the largest from silking to milking stage, and varieties showed neidan314>ning yu309>Jinshan116>Jinshan20; Except 08:00, the photosynthesis were maximum in nei dan314. Average instantaneous solar energy utilization efficiency in turn was ne idan314>ningyu309>Jinshan20. In four spring maize varieties, neidan314 had bett er light penetration, stronger photosynthetic capacity and the highest yield, wh ich was the first species of high density cultivation in the research area.
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