Department of Mathematics and Physics, Agricultural University, 12, Mendeleev Str., 4000, Plovdiv, Bulgaria
Abstract: This paper presents an investigation of the effect of ultrasonic treatment on the development of seeds from lentils (Lens culinaris, Med.) and wheat (Triticum aestivum). Ultrasonic wave with frequency 42 kHz has been used for the treatment. Samples were exposed to ultrasound for 0, 1, 2, and 3 min. The germination energy (GE), germination (G), length of stems (SL) and roots (RL), measured on the 7th and 14th day, as well as the total weight (TW) have been used in order to evaluate the impact of ultrasound on plant development. The length of stems (SL) and roots (RL), measured on the 7th and 14th day, as well as the total weight (TM) have shown dependence from the exposure time, better expressed for the parameters measured on the 7th day. The effect of ultrasound is stronger for lentils than wheat seeds.
Key words: Ultrasound, lentils, wheat, germination, stem, roots length, total weight.
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