pH和微量元素对中国石竹花色及花色素苷含量的影响  

Effects of pH and Trace Elements on Flower Colors and Anthocyanin Contents in Dianthus chinensis L.

作　　者：田广 张衡[1] 贺学勤[1] TIAN Guang;ZHANG Heng;HE Xueqin(College of Horticulture and Plant Protection,Inner Mongolia Agricultural University,Hohhot,Inner Mongolia 010018)

机构地区：[1]内蒙古农业大学园艺与植物保护学院,内蒙古呼和浩特010018

出　　处：《北方园艺》2021年第24期78-83,共6页Northern Horticulture

基　　金：国家自然科学基金资助项目(31960611)。

摘　　要：以野生中国石竹为试材,采用不同pH的酸碱缓冲液和含不同微量元素的溶液处理离体花苞的方法,研究了不同pH和微量元素对野生中国石竹花色和花色素苷含量的影响,以期为今后中国石竹的绿化应用提供参考依据。结果表明:pH 4和pH 5时,花瓣变红,pH范围在6~8花色未变化,pH 9和pH 10时花瓣褪色;与pH 7下的相比,pH 4和pH 10下花色素苷含量均显著降低。与未处理相比,CuSO_(4)<1.88×10^(-2)mol·L^(-1)时,花蕾能正常开放,花色变浅,花色素苷含量减少;ZnSO_(4)处理下花瓣中的花色素苷含量显著增加;随(NH_(4))_(2)Mo_(2)O_(7)浓度的增加,花瓣蓝色加深,花色素苷含量增加。因此,中国石竹可适应的pH范围在6~8,环境中的微量元素对其观赏性有影响。The detached flower buds of wild Dianthus chinensis L.was used as test materials and was treated with different pH acid-base buffers and trace elements.The effects of pH and trace elements on the flower color and the anthocyanin content were studied,in order to provide a reference for the greening of Dianthus chinensis L.in the future.The results showed that the petals turned red under pH 4 and pH 5,and thurned light under 9 and 10.There was no change from 6 to 8.The anthocyanin contents under pH 4 and pH 10 were significantly lower than those under pH 7.Compared with the untreatment,the flower buds in vitro bloomed,the flower colors became light and the anthocyanin contents decreased as ZnSO_(4)concentrations below 1.88×10^(-2)mol·L^(-1).The ZnSO_(4) increased the anthocyanin contents of petals.With the increase of(NH_(4))_(2)Mo_(2)O_(7)concentrations,the petal turned blue gradually and the anthocyanin contents increased.Therefore,the ornamental characters of Dianthus chinensis L.would not be influenced under the pH ranging from 6 to 8,and influenced by the trace elements in the environment.

关 键 词：中国石竹 花色 金属元素 PH 花色素苷 

分 类 号：S682.19[农业科学—观赏园艺]