首页 | 本学科首页   官方微博 | 高级检索  
     检索      

不同株型高产玉米蒸腾作用的研究
引用本文:王庆成; 王忠孝; 牛玉贞,李登海.不同株型高产玉米蒸腾作用的研究[J].玉米科学,1994,2(2):058-060.
作者姓名:王庆成; 王忠孝; 牛玉贞  李登海
作者单位:山东省农业科学院玉米研究所 济南 250100;山东省莱州市玉米研究所
摘    要:在夏玉米亩产吨粮的研究中,测定了平展型玉米各单40和紧凑型玉米掖单6号大喇叭口期和吐丝期不同叶位不同密度的蒸腾速率(Tr)及其日变化.结果看出:鲁单40的Tr高于掖单6号,大喇叭口期Tr高于吐丝期.玉米前期上部展开或即将展开的叶Tr较高,后期中部和上部较高.Tr的日变化为单峰曲线,中午最高.增加种植密度使Tr减少,鲁单40玉米的Tr受密度影响较大.

关 键 词:玉米    蒸腾作用    株型    种植密度

Studies on Leaf Transpiration Rate of High-yield Maize (Zea mays L. ) With Different Plant-type
Wang Qingcheng Wang Zhongxiao Niu Yuzhen and Li Denghai.Studies on Leaf Transpiration Rate of High-yield Maize (Zea mays L. ) With Different Plant-type[J].Journal of Maize Sciences,1994,2(2):058-060.
Authors:Wang Qingcheng Wang Zhongxiao Niu Yuzhen and Li Denghai
Abstract:At twelve-leaf and silking stage stomatic transpiration rates (Tr) and their diurnal changes of the leaves of "Ludan 40",a flat-type(planophile) maize hybrid,and "Yedan 6",a compact-type(erectophile) maize hybrid,were measured in several planting densities. The results showed that the Tr of "Ludan 40" was higher than that of "Yedan 6". At twelve-leaf stage the Tr of upper spread leaves was higher than that of lower leaves. At silking stage the Trs of both upper and middle leaves were higher than that of lower leaves. The diurnal changes of the Tr in both varieties showed a single peak curve,which reached the highest at noon. The Tr was reduced when the density was in-cresed. The Tr of "Ludan 40" was deeply affected by plant density.
Keywords:Maize (Zea may L  )  Transpiration  Plant-type  Planting density  
本文献已被 CNKI 维普 等数据库收录!
点击此处可从《玉米科学》浏览原始摘要信息
点击此处可从《玉米科学》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号