A. Álvarez, R. Ramírez, L. Chávez, Y. Camejo,
L. Licea, E. Porras y B. García
Issue:
107-4 (290-299)
Topic:
Plant Production
Keywords:
Vegetables, protected cultivation.
Summary:
The influence of seed treatment with low-power laser radiation on some physiological parameters and
yield of tomato hybrid HA3019 protected cultivation conditions. The seeds were irradiated with a laser
He-Ne 25 mW power at different exposure periods 5,10, 20, 30 and 60 seconds, using untreated seeds
as controls. We evaluated the germination percentage (%), survival (%), plant height (mm), root
length (mm), stem diameter (mm), polar average diameter (mm) ecuatorial mean diameter (mm), mean
fruit mass (g) and yield per plant (kg.plant-1). The results showed a significant increase (p?0.05) in the
indicators of plants height (50%), root length (13%), stem diameter (17%), equatorial mean diameter
(7%), mean fruit mass (13%) and yield per plant (67%), compared to control. This confirms the stimulating
effect of low power laser radiation on growth and yield of plants.
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