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Bio-fortification for high micronutrients in wheat breeding programs in China

文献类型： 会议论文

第一作者： Y.Zhang

作者： Y.Zhang 1 ; L.Wang 1 ; l Z.H.He 1 ;

作者机构： 1.Institute of Crop Science Chinese Academy of Agricultural Sciences (CAAS), 12 Zhongguancun South Street,Beijing 100081, China

会议名称： International gluten workshop

主办单位：

页码： 180-184

摘要： Two hundred and sixty-five Chinese wheat cultivars were sown at Anyang, Henan province, in 2005-2006to evaluate genetic variation in major mineral elements in the grain.They displayed a wide variation for all elements investigated, ranging from 28.0 to 65.4 mg kg-1 for Fe and 21.4 to 58.2 mg kg-1 for Zn.Cultivars Jimai 26, Henong 326, and Jingdong 8 displayed high Fe and Zn concentrations, for which Jingdong 8 was the most promising for increasing Fe and Zn.Thirty-seven cultivars grown at Anyang over two seasons were used to determine phenolic acids, and the fractions of free and bound types were analyzed using HPLC with measurements of individual phenolic acids in each fraction.Most of the parameters were significantly influenced by cultivars, seasons, and their interactions, with cultivars being predominant.The average concentration of bound phenolics was 661 μg g-1 of dm (dry matter), making up 97.5％ of the total phenolic acids, with ferulic acid accounting for 70.7％ of it.Free phenolics made up only 2.5％, with syringic acid accounting for 44.7％ of that.Bound phenolics predominated.Cultivars Liangxing 66 and Zhongrnai 895 were stable with high values in phenolic acids across seasons, indicating they could be used as parents in breeding for health beneficial phenolic acid content.

分类号： TS213

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