파장별 야간 조사에 따른 ‘거봉’ 포도의 품질 및 생산량

초록

This study was conducted to estimate the light pollution damage caused by night-break lighting in 'Kyoho' grapes. Night irradiation was performed every night for four hours (10 p.m. to 2 a.m.) from the full bloom to the harvest stage using red, blue, and white lamps as artificial light. Fruit yield, soluble solid content, anthocyanin content, and chlorophyll a content were affected by night irradiation. The soluble solid content of the control was 17.5 degrees Brix, approximately 1 degrees Brix higher than the red (16.4 degrees Brix), blue (16.2 degrees Brix), and white light treated grapes (16.3 degrees Brix). The anthocyanin content of the skin was also higher in the control at 4.08 mu g.cm(-2) compared to the red (3.14 mu g.cm(-2)), blue (2.47 mu g.cm(-2)), and white (2.82 mu g.cm(-2)) light treated samples. On the other hand, the chlorophyll a content of the control was the lowest at 0.268 mu g.cm(-2) as compared with the red (0.339 mu g.cm(-2)), blue (0.345 mu g.cm(-2)), and white (0.372 mu g.cm(-2)) light treated samples. Considering that higher soluble solid contents, higher accumulation of anthocyanin, and lower chlorophyll a contents are factors involved in fruit maturation, night irradiation may delay fruit maturation and red light treatment may result in decreased yield. Our results confirmed that night-break lighting regardless of the wavelength provoked light pollution in 'Kyoho' grapes. Therefore, fruit maturation may be poor in the presence of artificial light, including streetlamps, in neighboring vineyards.

키워드