Next Article in Journal
Endophytism of Lecanicillium and Akanthomyces
Next Article in Special Issue
An Integrated Approach to Unravelling Smallholder Yield Levels: The Case of Small Family Farms, Eastern Region, Ghana
Previous Article in Journal
Association of Heterotic Groups with Morphological Relationships and General Combining Ability in Eggplant
Previous Article in Special Issue
The Combined Effect of Different Sowing Methods and Seed Rates on the Quality Features and Yield of Winter Wheat
Open AccessArticle

Impacts of LEDs in the Red Spectrum on the Germination, Early Seedling Growth and Antioxidant Metabolism of Pea (Pisum sativum L.) and Melon (Cucumis melo L.)

1
División of Innovation in Telematic Systems and Electronic Technology (DINTEL), Technical University of Cartagena, Campus Muralla del Mar, s/n. E-30202 Cartagena, Spain
2
Department of Plant Breeding, Fruit Tree Biotechnology Group, CEBAS-CSIC, Campus Universitario de Espinardo, P.O. Box 164, E-30100 Murcia, Spain
*
Author to whom correspondence should be addressed.
Agriculture 2020, 10(6), 204; https://doi.org/10.3390/agriculture10060204
Received: 21 April 2020 / Revised: 25 May 2020 / Accepted: 1 June 2020 / Published: 5 June 2020
(This article belongs to the Special Issue Innovative Agronomic Practices for Maximizing Crop Growth and Yield)
(1) Background: In recent years, the use of light emitting diodes (LEDs) for plant production purposes has expanded. However, LEDs’ effect on seed germination and early seedling growth has been scarcely documented. (2) Methods: In this work, the effect of monochromatic red light (RL, 100 µmol m−2 s−1) for up to 60 min applied to seeds of pea and melon was analyzed in terms of seedling growth and antioxidant enzymes levels. An experimental LED chamber coupled to an electronic control system was developed for this purpose. (3) Results: RL did not alter the germination rate, but significantly improved the early seedling growth. Pea and melon seedlings showed the highest increase in fresh weight and length upon 15 min RL treatment of the seeds, whereas longer exposure times decreased seedling growth. Interestingly, RL favored the development of secondary roots in both species, which could favor the nutrition and water uptake by the seedling. The ability of the seedlings to respond to a hypothetical LED irradiance-induced oxidative stress was reflected differently on the antioxidant system of pea and melon. (4) Conclusions: These findings can be relevant for designing seed priming treatments to improve plant vigor, thus enhancing the productivity of important crop plants. View Full-Text
Keywords: antioxidant enzymes; experimental light chamber; germination; light-emitting diode (LED); phytochrome; red light; seedling growth antioxidant enzymes; experimental light chamber; germination; light-emitting diode (LED); phytochrome; red light; seedling growth
Show Figures

Figure 1

MDPI and ACS Style

Solano, C.J.; Hernández, J.A.; Suardíaz, J.; Barba-Espín, G. Impacts of LEDs in the Red Spectrum on the Germination, Early Seedling Growth and Antioxidant Metabolism of Pea (Pisum sativum L.) and Melon (Cucumis melo L.). Agriculture 2020, 10, 204.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop