Light-Intercepting Characteristics and Growth of Tomatoes Cultivated in a Greenhouse Using a Movable Bench System

Horticulturae

卷:8

Yasuhiro Ishigami¹  Misato Murai¹  Yuta Ohashi¹  Eiji Goto¹ 

[1] Graduate School of Horticulture, Chiba University, Matsudo 648, Chiba 271-8510, Japan;

关键词: leaf area index;    light environment;    light extinction coefficient;    plant height;    R/FR ratio;    shade avoidance;   

DOI  :  10.3390/horticulturae8010060

来源: DOAJ

【 摘 要 】

The objective of this study was to investigate the growth and light-intercepting characteristics of tomatoes when movable benches are used in their cultivation. We cultivated tomatoes in a greenhouse (168 m²) during summer (9 July–9 September 2018) under different furrow distances (F1.0 = 1.0 m and F1.6 = 1.6 m) and movable benches (M indicates that the furrow distance = 0.4–0.8 m). Compared to the other treatments, when the movable bench was used to the change furrow distance depending on the plant growth stage (M treatment), the percentage of canopy light interception increased to ~90% at the early stage of plant growth (~20 days after transplanting). The percentage of canopy light interception for different treatments increased in the order of M > F1.0 > F1.6, and it increased towards the end of cultivation. In addition, the yield per unit area exhibited the same trend. Therefore, the solar radiation inside a greenhouse can be efficiently intercepted by plants when movable benches are used. This indicated that it was possible to increase plant yield per unit area using movable benches in plant cultivation.

【 授权许可】

Unknown