光质对菜用大豆苗期光形态建成及根冠比的影响  

Effects of Light Quality on the Photomorphogenesis and the Root-shoot Ratio of Soybean at Seedlings Stage

作　　者：方临志 马稚昱[2] 年海[1,3] 吴卓晏 王巧彬 马启彬[1,3] 程艳波[1,3] 牟英辉[1,3] FANG Lin-zhi;MA Zhi-yu;NIAN Hai;WU Zhuo-yan;WANG Qiao-bin;MA Qi-bin;CHENG Yan-bo;MU Ying-hui(College of Agriculture, South China Agricultural University, Guangzhou 510642, China;Faculty of Mechanic and Electrical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China;Guangdong Subcenter of National Soybean Improvement Center, Guangzhou 510642, China;Guangzhau Research Institute of O-M-E Technology, Guangzhou 510663 ,China)

机构地区：[1]华南农业大学农学院,广东广州510642 [2]仲恺农业工程学院机电学院,广东广州510225 [3]华南农业大学国家大豆改良中心广东分中心,广东广州510642 [4]广州市光机电技术研究院,广东广州510663

出　　处：《大豆科学》2018年第3期366-372,共7页Soybean Science

基　　金：国家自然科学基金(31171508);广州市科技计划项目(201508020067);国家现代农业产业技术体系建设专项(CARS-04-PS09)

摘　　要：发光二极管(LED)已被广泛地应用于温室栽培作物及科研的光源。本研究以上海青、华夏7号和浙鲜豆5号3个品种菜用大豆品种为供试材料,采用LED植物生长灯为光源,研究相同光照强度(180±5μmol·m^(-2)·s-1)下,不同光质对菜用大豆光形态建成和根冠比的影响。结果表明:与白光相比,以红光为主的光质处理显著提高了菜用大豆的株高和下胚轴长度,随着组合光中红光比例的增加,植株的复叶面积逐渐增大;蓝光及以蓝光为主的组合光明显促进了根系的生长;相对于单色光组合光能提高菜用大豆地上部生物量、地下部生物量及根冠比;菜用大豆对光质的响应存在着品种间差异。Light-emitting diode （LED） has been widely used in crop cultivation in greenhouse and scientific research. The effects of light quality on the photomorphogenesis and root-shoot ratio of vegetable soybean seedlings (Shanghaiqing, Huaxia 7 and Zhexiandou 5) were investigated under the same light intensity （180 ± 5 μmol-m-2. s-1) with LED irradiation. The result indicated that compared with white light, the combinations based on red light could significantly promote the stem and hypocotyl of soybean seedlings, and with the increase of the ratio of red light in the combination, trifoliate leaves also expanded more. Blue light together with the combinations based on blue light could significantly stimulate the growth of the root. Contrast to the single wavelength light, the biomass of the shoot, root and root-shoot ratio increased under the treatments of the combinations. Intraspecific variations in the responses were observed.

关 键 词：菜用大豆 光质 光形态建成 根冠比 

分 类 号：S643.7[农业科学—蔬菜学]