Abstract
The effect of ultrasound on plants has been shown by limited number of researchers. This article presents data on effect of ultrasound on seedlings of chickpea and fenugreek experimented in less favorable temperature ranging from 9.0-16.0 °C. The exposure was done in seedlings semi-buried in moist coco peat. The results indicated that 23% of chickpea (n=31) that had ultrasound exposure (20 kHz/ 5’ for 2 consecutive days) had germination root length (>1.5cms) as compared to 14% in control (n=28). The effect in Fenugreek was the opposite that control seedlings had better growth than the exposed seedlings (20 kHz/ 5’ for 2 consecutive days). The effect of ultrasound (20 kHz/ 30’ one time) on germinating garlic indicated positive effect that weaker seedlings can benefit from the treatment. Hence to conclude, it could be stated that seeds with bigger bulk mass like chickpea, had positive effect whereas seeds with lower bulk mass like fenugreek had negative effect at treatment dose 5’/20 kHz and garlic had positive effect at 30’ / 20Hz. Possibly it also reiterates the proven concept that longer exposure is beneficial than a shorter exposure.
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