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The current study succeeded in demonstrating the role of red laser beams at a wavelength of 650 nm and a power of 50 milliwatts / cm2 when exposed to the seeds of the tomato plant Solanum lycopersicum L. at times of 0,5,10,15 minutes on their germination rate and seedlings growth, and then estimating the growth of its callus and its content of lycopene. Also the results showed that the time period of 10 minutes exceeded others in encouraging seed germination with a full percentage (100%) afterdoi:10.53730/ijhs.v6ns1.4844 fatcat:h2k3e53y6rhh5cs46hgcdsosha