Influence of different illuminations with xenon or microwave sulfur lamp on jointing and tillering of wheat  

作　　者：CHEN Qilin LIU Yuequn YU Xinjian CHEN Jinxing WENG Jun XU Chunhe 

机构地区：[1]Shanghai Institute of Plant Physiology,Chinese Academy of Sciences,Shanghai 200032,China [2]Institute of Electronic Lamp,Fudan University,Shanghai 200433,China

出　　处：《Chinese Science Bulletin》2002年第17期1433-1437,1498,共6页

基　　金：This work was supported by the National Natural Science Foundation of China (Grant No. 30170079);the State Key Basic Development Plan Programm (Grant No. G1998010100).

摘　　要：The emission of microwave sulfur lamp is mainly composed of visible light. The sulfur lamp, producing little infrared radiation, has high efficiency, long duration of illumination and less energy consumption. In order to probe the agricultural application of the lamp, experiments were carried out with wheat (cv. Yangmai 158) to emphatically study illuminating effects of xenon or sulfur lamp on tillering, jointing and net photosynthetic rate during tillering and jointing periods. Results indicated that there is almost no difference in net photosynthetic rate of wheat leaves growing under different lamps. Xenon lamp significantly advanced the time of jointing, decreased number of tillers, number of total leaves per plant and leaf size, as well as inhibited root growth. In contrast with xenon lamp, sulfur lamp evidently delays the time of heading and grain maturation, increased number of heads per plant, head length, total number of grains per plant, head weight and total grain weight per plant,The emission of microwave sulfur lamp is mainly composed of visible light. The sulfur lamp, producing little infrared radiation, has high efficiency, long duration of illumination and less energy consumption. In order to probe the agricultural application of the lamp, experiments were carried out with wheat (cv. Yangmai 158) to emphatically study illuminating effects of xenon or sulfur lamp on tillering, jointing and net photosynthetic rate during tillering and jointing periods. Results indicated that there is almost no difference in net photosynthetic rate of wheat leaves growing under different lamps. Xenon lamp significantly advanced the time of jointing, decreased number of tillers, number of total leaves per plant and leaf size, as well as inhibited root growth. In contrast with xenon lamp, sulfur lamp evidently delays the time of heading and grain maturation, increased number of heads per plant, head length, total number of grains per plant, head weight and total grain weight per plant, accordingly significantly increased yield per plant. Strong infrared radiation might be the main cause to influence jointing and tillering. The development characteristics of wheat under sulfur lamp were much similar with those in natural condition.

关 键 词：sulfur LAMP XENON LAMP joint TILLER wheat. 

分 类 号：Q947[生物学—植物学]