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

Author(s):: FANG Lin-zhi¹; MA Zhi-yu²; NIAN Hai¹; 3; WU Zhuo-yan¹; WANG Qiao-bin⁴; MA Qi-bin¹; 3; CHENG Yan-bo¹; 3; MU Ying-hui¹; 3; (1.College of Agriculture，South China Agricultural University, Guangzhou 510642，China； 2.Faculty of Mechanic and Electrical Engineering, Zhongkai University of Agriculture and Engineering,Guangzhou 510225, China; 3.Guangdong Subcenter of National Soybean Improvement Center, Guangzhou 510642, China; 4.Guangzhou Research Institute of O-M-E Technology， Guangzhou 510663，China)

Keywords:: Vegetable soybean; Light quality; Photomorphogenesis; Root-shoot ratio

PACS:: -

DOI:: 10.11861/j.issn.1000-9841.2018.03.0366

Abstract:: 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.

References:

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

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

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