@article{oai:repository.naro.go.jp:00001746, author = {濵本, 浩 and HAMAMOTO, Hiroshi and 山崎, 敬亮 and YAMAZAKI, Keisuke and 吉田, 祐子 and YOSHIDA, Yuko and ABE, Junichiro and 安部, 順一朗 and ABE, Jun-ichiro}, journal = {近畿中国四国農業研究センター研究報告, BULLETIN of THE NATIONAL AGRICULTURAL RESEARCH CENTER for WESTERN REGION}, month = {Feb}, note = {A newly designed film that absorbs ultraviolet radiation and fluoresces red light (UV - R film), an ultraviolet absorbing film (UVA film), and a normal clear film (control film) were tested as rain shelters for the spring cultivation of spinach (Spinacia oleracea L.) and Welsh onion (Allium fistulosum L.). The films were continuously used for five spring cultivations. The results and conclusion are as follows. 1) In new films, transmittances of near ultraviolet radiation of UV - R film and UVA film were smaller than that of control film. The transmittances of UV - R film became larger since second-year cultivation but UVA film did so since forth-year cultivation. Transmittance of photosynthetically active radiation (PAR) was not clearly different between UVA film and control film. In PAR under new UV - R film, red light percentage was larger and blue light percentage was smaller than PAR under UVA and control films. However, this characteristic of UV - R film became smaller since second-year cultivation. 2) New UV - R film and UVA film promoted growth of spinach and Welsh onion, especially in plant height, spinach leaf area, and Welsh onion's fresh weight and leaf sheath diameter, compared with control film. The effect of UV - R film became smaller since then but the effect of UVA film was found until forth-year cultivation. 3) Considering the results of the present and earlier studies, effects on light condition and plant growth of UV - R film would decrease after half-year to one-year use. The effects of UVA film can be expected to keep for three to four years.}, pages = {1--12}, title = {紫外線 - 赤色光光質変換フィルムと紫外線カットフィルムの光学的特性および葉菜類の生育に及ぼす影響の経年変化}, volume = {10}, year = {2011}, yomi = {ハマモト, ヒロシ and ヤマザキ, ケイスケ and ヨシダ, ユウコ and アベ, ジュンイチロウ} }