Table of Contents
Agriculture, Volume 10, Issue 6 (June 2020) – 58 articles
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Cover Story (view full-size image) In recent years, the use of light emitting diodes (LEDs) for plant production purposes has [...] Read more. In recent years, the use of light emitting diodes (LEDs) for plant production purposes has expanded. The effect of monochromatic red light (RL, 100 µmol m−2 s−1) for up to 60 min as applied to seeds of pea and melon was analyzed in terms of seedling growth and antioxidant enzyme levels. An experimental LED chamber coupled to an electronic control system was developed for this purpose. Pea and melon seedlings showed the highest increase in fresh weight and length when seeds were subjected to 15 min of RL treatment, whereas longer exposure times decreased seedling growth. Interestingly, RL favoured the development of secondary roots in both species, which could lead to improved seedling nutrition. This growth promotion effect of RL was reflected differently in the antioxidant systems of pea and melon. These findings may be relevant in the design of seed priming treatments to improve plant vigour. View this paper