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玉米不同株型群体冠层特性与光能截获量及产量的关系
引用本文:薛吉全,鲍巨松,杨成书,马国胜,胡小平,王林栋.玉米不同株型群体冠层特性与光能截获量及产量的关系[J].西北农业学报,1995,4(1):29-34.
作者姓名:薛吉全  鲍巨松  杨成书  马国胜  胡小平  王林栋
摘    要:研究结果表明,紧凑型玉米与平展型玉米相比,茎叶夹角较小(19.9°~23.6°),叶向值大(43.9~62.6),株型紧凑,群体内透光率随密度增加降低幅度较小,其受光态势优于平展型玉米.紧凑型玉米群体光能截获量达到90%的叶面积系数为4.85,远大于平展型玉米3.49.紧凑型玉米具有叶片净同化率相对稳定、叶面积系数适宜值大、耐密植、干物质生产效率高、单株生产力和产量潜力较大等特点.

关 键 词:玉米  株型  冠层结构  光能截获量  产量
收稿时间:1994/3/9 0:00:00

GRAIN YIELD AND LIGHT RECEIVING RESPOND OF PLANT MORPHOLOGICAL PATTERN IN MAIZE
Xue Jiquan,Bao Jusong,Yang Chengshu,Ma Guosheng.GRAIN YIELD AND LIGHT RECEIVING RESPOND OF PLANT MORPHOLOGICAL PATTERN IN MAIZE[J].Acta Agriculturae Boreali-occidentalis Sinica,1995,4(1):29-34.
Authors:Xue Jiquan  Bao Jusong  Yang Chengshu  Ma Guosheng
Abstract:Comparative experiment shows that:in maize,erect leaf type (angle of leaf and stem varies 19.9°-23.6°) has a high leaf orientation value(43.9~62.6)and is in relatively compactive canopy pattern than those of horizontal leaf type.Light penetration in the erect type field reduces much less than that in the horizontal type field as plant density increased.Hence the former one has a better light condition (to get 90% light, the leaf area index for erect and horizontal types should be 4.85 and 3.49 respectively.Our eaperiment also reveals that elect type has a stable net leaf assimilation ratio and is adaptable to plant density,more efficient for dry matter production,as well as more productive in both individual plant production and grain yield potential.
Keywords:Maize  Morpological pattern  Light penetration
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