以糯玉米冀糯2403、冀糯188、冀糯172、冀糯2402,甜糯玉米黑甜糯188和甜玉米墨瞳黑甜为研究材料,测定植株各器官花青素含量及穗部花青素含量动态变化。结果表明,不同品种紫色鲜食玉米籽粒花青素含量在3.67~6.83U?g_-1^{之间,穗轴花青素含量是籽粒的}2.4倍。植株各器官花青素含量大小顺序为穗轴＞叶片＞苞叶＞籽粒＞根＞茎,甜玉米墨瞳黑甜苞叶、穗轴和茎花青素含量较高,糯玉米冀糯172籽粒花青素含量较高,甜糯玉米黑甜糯188花青素含量相对较低。不同品种紫色鲜食玉米籽粒和苞叶花青素含量随着籽粒成熟均呈先降后升的趋势,在灌浆中期最低,成熟期最高,穗轴花青素含量随着籽粒成熟均呈先升后降的趋势,在乳熟期达到最高值。综上,紫色甜玉米花青素含量较高,紫色玉米籽粒花青素含量随着籽粒成熟过程呈波动式上升趋势。

Using waxy corn varieties Jinuo 2403, Jinuo 188, Jinuo 172, Jinuo 2402, sweet-waxy corn Heitienuo 188, and sweet corn Motong Heitian as experimental materials, the anthocyanin contents in different plant organs and the dynamic changes in ear anthocyanin accumulation were determined. Results showed that the anthocyanin content in kernels of different purple fresh corn varieties ranged from 3.67 to 6.83 U?g_-¹, with the cob containing 2.4 times more anthocyanins than the kernels. Among plant organs, anthocyanin content followed the order: cob > leaf > husk > kernel > root > stem. The sweet corn Motong Heitian exhibited relatively high anthocyanin content in husk, cob, and stem, while the waxy corn Jinuo 172 showed higher anthocyanin content in kernels, and the sweet-waxy corn Heitienuo 188 had relatively low anthocyanin content overall. Across different varieties, anthocyanin contents in kernels and husks decreased initially and then increased during grain development, reaching the lowest level at the mid-filling stage and peaking at maturity. In contrast, cob anthocyanin content increased first and then declined, reaching the maximum at the milk stage. In conclusion, purple sweet corn generally contained higher anthocyanin levels, and kernel anthocyanin content exhibited a fluctuating upward trend throughout grain maturation.

河北省现代农业玉米产业技术体系“寒旱区抗逆丰产栽培岗位专家”(HBCT2023020202)；河北北方学院项目(XJ2023018)；、河北省农产品食品质量安全分析检测重点实验室绩效补助经费项目(22567613H)第一作者：刘伊冉(2004-),女,河北唐山人,本科生,研究方向为玉米高产栽培技术,电话,13582959672,E-mail：13582959672@163.com*通讯作者：赵海超(1974-),E-mail:haichaozhao19@163.com；张国华(1976-),E-mail:haxzzyg@163.com ,²*^,于静彤1,2^,张怡然1,2^,尹文旭1,2^,黄智鸿1,2^,刘松涛1,2^,李欣圆1,2^,张国华3*^,蒋超1,2^{,卢海博1,2}