Effect of ultrasound treatment on germination of dill (Anethum graveolens L.) seeds | Ultraskaņas apstrādes ietekme uz diļļu (Anethum graveolens L.) sēklu dīgšanu
2020
Mezaka, I., Institute for Environmental Solutions, Priekuļi Parish, Priekuļi Municipality (Latvia) | Mizobata, N., Institute for Environmental Solutions, Priekuļi Parish, Priekuļi Municipality (Latvia)
Dill (Anethum graveolens) is one of the major aromatic plants in Latvia, however seeds often have delayed germination and uneven establishment in cool soils. The study was conducted to determine the effect of ultrasound treatment on dill seed germination. For this aim, 35 kHz ultrasound waves at five different lengths of treatment (90 s, 180 s, 270 s, 360 s and 450 s) were tested, and treated seeds were compared to untreated. Seeds were germinated in laboratory conditions under 10 °C, and the germinated seeds were counted daily. Germination started earlier in untreated seeds, but higher germination rate was detected in seeds treated with ultrasound. Seeds treated for 360 s achieved maximum (98%) germination rate. Tests in field conditions should be carried out to test the effect of seed pre-treatment.
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