イワサキ　ヤスナガ   IWASAKI YASUNAGA   岩崎　泰永    所属   明治大学  農学部    職種   専任教授
言語種別	英語
発行・発表の年月	2020
形態種別	学術雑誌
標題	Modeling and Prediction of Dry Matter Production by Tomato Plants in Year-round Production Based on Short-term, Low-truss Crop Management
執筆形態	その他
掲載誌名	HORTICULTURE JOURNAL
出版社・発行元	JAPAN SOC HORTICULTURAL SCI
巻・号・頁	89(4),pp.417-424
著者・共著者	Mizuho Itoh, Chisato Goto, Yasunaga Iwasaki, Wataru Sugeno, Dong-Hyuk Ahn, Tadahisa Higashide
概要	We investigated dry matter (DM) and fruit production of tomato plants, the effects of CO2 levels on DM production, and light-use efficiency (LUE) in a tomato production system based on short-term, low-truss crop management during six consecutive periods over one year in a commercial greenhouse. The CO2 concentration, total dry matter production (TDM), and LUE differed significantly among the periods. Since LUE was significantly correlated with the mean daytime CO2 concentration, we modeled LUE empirically from that. We developed a model to predict LUE and DM production of tomato plants and validated the model using data from the six periods. We accurately predicted LUE and TDM within a range of ca. 400 to 650 mu mol.mol(-1) daytime CO2 concentration. However, when daytime CO2 concentration was beyond this range, or when a management failure such as inadequate irrigation occurred, predicted values differed significantly from observed values.
DOI	10.2503/hortj.UTD-143
ISSN	2189-0102