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以盆栽海棠‘长寿冠’为材料,在对其花色素进行特征颜色反应和紫外-可见光谱扫描分析基础上,探讨了促花调控过程中增温及叶面施肥对花瓣色素含量的影响。结果表明,‘长寿冠’花色是多种色素共同显色的结果,但花青素起着决定性作用,其花色色素属于黄酮类化合物。在长寿冠促花调控过程中,适当增大昼夜温差或在现蕾期喷洒0.2%过磷酸钙或0.2%硫酸钾有利于花青素含量的提高,使花朵着色加深;在现蕾期喷洒0.1%的尿素则造成花青素含量降低,使花朵颜色淡化。RHSCC比色结果与花青素含量的测定结果基本吻合,可作为评判‘长寿冠’花色质量的一个依据。该项研究为海棠花色素成分的进一步分离和鉴定等提供基础,同时为海棠促花调控过程中花色质量的评价提供依据。
Based on the characteristic color reaction and UV-visible spectral scanning analysis of flower anthocyanin, the effects of warming and foliar fertilization on the pigment content of petals were studied. The results showed that ’longevity crown’ is the color of a variety of common coloration results, but anthocyanins play a decisive role, the pigment belongs to flavonoids. In the process of longevity Guanghuanhua regulation, appropriately increasing the temperature difference between day and night or spray 0.2% superphosphate or 0.2% potassium sulphate in budding stage is conducive to the increase of anthocyanin content, deepening the flower coloring; spray 0.1 % Of urea is reduced anthocyanin content, so that the color of flowers desalination. RHSCC colorimetric results and anthocyanin content of the determination of the basic agreement, can be used as a judge ’longevity crown’ a color quality basis. This study provided the basis for the further isolation and identification of anthocyanin constituents in Begonia, and provided the basis for the evaluation of flower color quality during the regulation of flowering flower.