On Possibility of Growth of Plants for Landscaping Intensity of Illumination Indoors.

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  • 室内の低照度条件下における造園植物の生育可能性について
  • シツナイ ノ テイ ショウド ジョウケンカ ニ オケル ゾウエン ショクブツ

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Abstract

Experimental growth of 35 kinds of plants for landscaping was operated for 26 months to investigate possibility of growth under low intensity of illumination indoors set to 400 lux, 1, 300 lux, and 1, 700 lux per year respectively.<BR>Consequently, the experiment suggest that 11 kinds of plants, such as Cinnamomum camphora Sieb.(nursery stock), Camellia sasanqua Thunb., Eurya spp., Ilex cornuta Lindl. ex Paxt, Sarcococca humilis Stapf, Pachysandora terminalis Sieb. et Zucc., Ophiopogon japonicus Ker. f. nanus hort., Carex morrowii Boott f. expallida T. Koyama, Hedera helix 'Glacier', Woodwardia orientalis Swartz, and Asplenium prolongatum Hook., can grow under intensity of 400 lux per year. Also under 1, 300 lux, 19 kinds including Cinnamomum camphora Sieb.(adult tree), Dendropanax trifidus Makino, Cedrus deodara Loud., Hosta sieboldii J. Ingram, Hosta spp., Saxifraga fortunei Hook. f. var. incisolobata Nakai, Sasa veitchii f. minor Rehd., and Selaginella uncinata Spring, and 11 kinds above can grow, and with 1, 700 lux, the kinds of plants increase to 22 kinds including 19 kinds above and Citrus junos Sieb. es T. Tanaka, Metasequoia glyptosorobopdes Hu et Cheng, Aucuba japonica spp., Hypericum patulum Thunb., and Hypericum spp.<BR>Compared with contrasting plants outdoors, apparent differences were recognized in the shape of leaves and flowers, branches, as well as the growth of new leaves, under all low illuminated conditions.

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