METHOD AND DEVICE FOR RAISING SEEDLINGS OF TOMATO

摘要

To suppress UV disorder and the onset of tomato virus disease while significantly reducing an amount of light irradiation on a tomato seedling per day.SOLUTION: A device for raising seedlings of tomato has an LED light source (1) that can irradiate a tomato seedling (4) with light of 280 nm or more and 290 nm or less as an effective wavelength component, at an irradiance of 0.3 kJ/mor more and 0.4 kJ/mor less in the dark period per day.SELECTED DRAWING: Figure 1