Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Genhua Niu and Maki Ohashi and Yoshiaki Kitaya and Toyoki Kozai,"Effects of Photosynthetic Photon Flux, Photoperiod, and CO2 Enrichment on the Growth and Morphogenesis of Lettuce Plug Transplants",HortScience,0018-5345,American Society for Horticultural Science,1997-06-01,32,,542E-543,https://cir.nii.ac.jp/crid/1874242817642912768,https://doi.org/10.21273/hortsci.32.3.542e