Light and Temperature Effects on the Color and Scent of Osmanthus fragrans ‘Houban Yingui’

External environmental factors affect the appearance of plants, specifically their color and aroma. To investigate effects on ornamental quality Osmanthus fragrans, which has bright colors a strong floral fragrance, contents characteristic flower aroma compounds under different light temperature treatments were investigated in O. fragrans ‘Houban Yingui’. The content compound β-carotene decreased after continuous treatment increased dark treatment, resulting paler conditions deeper conditions. volatiles flowers significantly both treatments, suggesting that rhythm alternating day night may be more conducive to synthesis release volatiles. In low-temperature decreased, brighter color, while high by oxidation phenolic addition pigments. A accelerated senescence promoted cis-3-hexenyl butanoate hexyl butanoate. low trans-β-ionone, α-ionone, many monoterpenes corresponding oxides, are aroma-active longer-lasting fragrance. results here demonstrate controlling can regulate scent fragrans.