论文部分内容阅读
研究了不同遮阴条件下滇山茶(Camellia reticulata Lindl.)花瓣中花青素苷组成和含量的变化。结果表明:滇山茶的花瓣中含有13种以上的花青素苷,其中主要成分矢车菊素–3–O–(2–O–β–木糖基)–β–葡萄糖苷(Cy3GX)与矢车菊素–3–O–[2–O–β–木糖基–6–O–(E)–p–香豆酰]–β–葡萄糖苷(Cy3GEpCX)的含量占总花青素苷含量的60.4%～64.2%。在开花期,随着遮阴率的升高和遮阴时间的延长,花瓣中13种花青素苷的含量都同时呈现先升高后下降的变化趋势,但各组分占总花青素苷含量的百分比不变。用60%～70%遮阳网遮阴,对提高滇山茶花瓣中Cy3GX、Cy3GEpCX以及总花青素苷含量的效果最明显,遮阴处理21 d时上述花青素苷含量皆达最大值。90%遮阳网遮阴,花青素苷含量低于不遮阴时的含量。在云南山茶花的种植中,根据实际环境条件适当遮阴,对增加花瓣各种花青素苷的含量,改善花色具有重要意义。
The changes of anthocyanin composition and content in the petals of Camellia reticulata Lindl. Under different shading conditions were studied. The results showed that the petals of Dianthus Camellia contained more than 13 kinds of anthocyanins, and the main components were cyanidin-3-O- (2-O-β-xylosyl) -β-glucoside (Cy3GX) The content of cyanidin-3-O- [2-O-β-xylosyl-6-O- (E) -p- coumaroyl] -β-glucoside (Cy3GEpCX) Content of 60.4% ~ 64.2%. In flowering stage, with the increase of shading rate and shading time, the content of 13 kinds of anthocyanin in petals all increased at first and then decreased. However, the content of total anthocyanin The percentage of content unchanged. Shading with 60% ~ 70% shading shading has the most obvious effect on increasing the content of Cy3GX, Cy3GEpCX and total anthocyanin in Camellia davurica. The maximum anthocyanin content reaches the maximum at 21 d shading treatment. 90% Shading shade, anthocyanin content is less than the shade does not cover the content. In the cultivation of Yunnan camellia, according to the actual shade of the appropriate environmental conditions, to increase the content of various petal anthocyanins, to improve the color is of great significance.