桂花开花期间花色变化规律的研究  

Study on the Variation of Flower Color of Osmanthus fragrance at the Blooming Stage

作　　者：孙陶泽[1] 王良桂[2] 杨秀莲[2] 徐晨[2] 母洪娜[1] 

机构地区：[1]长江大学园艺园林学院,湖北荆州434025 [2]南京林业大学风景园林学院,江苏南京210037

出　　处：《长江大学学报（自然科学版）》2017年第14期24-27,共4页Journal of Yangtze University(Natural Science Edition)

摘　　要：选用桂花(Osmanthus fragrans Lour.)2个不同品种即‘早银桂’(O.fragrans‘Zaoyingui’)和‘橙红丹桂’(O.fragrans‘Chenghongdangui’)材料,观测了桂花花色的表型变化和细胞内花青素、类胡萝卜素含量变化。结果表明:从铃梗期到初花期2个品种花色变化明显,其中‘早银桂’整个开花期花色变化呈现出"浅-深-浅",而‘橙红丹桂’则是由浅到深,初花期之后花色变化无明显变化。整个开花期2个桂花品种花青素含量均呈下降趋势;相对于‘早银桂’而言,‘橙红丹桂’花青素含量下降得较缓慢,并维持在较高的水平。‘早银桂’类胡萝卜素的含量较低;‘橙红丹桂’类胡萝卜素含量由低到高,而且整个开花期均维持较高的含量。Two Osmanthus fragrans cultivars,‘Zaoyingui'and‘Chenghongdangui'were used as experimental materials to study the variation of flower color and the related contents of anthocyanin and carotenoid.The results showed that there was significant color variation presenting in the two cultivars from Linggeng stage to the initial flower stage.As for the color variation, 'light-darklight'trend and only'light-dark'were presented in‘Zaoyingui'and‘Chenghongdangui'respectively.The color pigments analysis indicated that anthocyanin presents a declining trends in the two cultivars.Compared ‘Zaoyingui'with ‘Chenghongdangui',the anthocyanin content declined very slowly and kept high level in ‘Chenghongdangui'while presented sharp decline in the former.The carotenoid content was low in‘Zaoyingui',and was ascending in‘Chenghongdangui'at the blooming stages.

关 键 词：桂花(Osmanthus fragrans Lour.) 花色 花青素 类胡萝卜素 

分 类 号：S685.13[农业科学—观赏园艺]