Effect of violin sound exposure with pressure level variation to green mustard (Brassica juncea L.) growth and productivity

Abstract

The objective of this research was to investigate effect of violin sound exposure to morphology characteristic and green mustard productivity. Experimental design used was completely randomized design with one treatment factor which was sound level. The sound level consisted of three levels, 70-75 dB, 80-85 dB and 90-95 dB. Total treatment combinations were 4 combinations. The object of this research was Tosokan variety of green mustard which are commonly available in market. The number of samples was considered as repetition. Result showed that violin sound at level 70-75 dB resulted the highest germination rate about 98% when compared to 80-85 dB and 90-95 dB levels. Violin music sound stimulation gave significant effect on plant morphological characteristics such as plant height, leaf area and plant and root length when compared to the control plants. Sound exposure at 70-75 dB sound level generally produced highest values for all morphological characteristics. Statistical analysis showed that sound exposure at 70-75 dB sound level produced highest productivity average weight, 22.5 grams per plant, while control plants produced an average weight only 15 grams per plant. The conclusion of this study was violin music stimulation resulted increased green mustard productivity, especially at low sound level.