Analysis of Mineral Elements in Maize Kernel Treated with Leaf Fertilizers

doi:10.13560/j.cnki.biotech.bull.1985.2017-0957

Abstract

Abstract: Iron（Fe）,zinc（Zn）and selenium（Se）are essential trace mineral elements in organism and play an important role in the growth and development of plants,animals and human body. In order to increase the contents of Fe,Zn and Se in maize seeds,we sprayed iron,zinc,selenium fertilizer and their combinations on leaves,and explores their effects on iron,zinc,selenium and other mineral elements in maize kernels. Different concentration of Fe,Zn and Se fertilizers and their combinations were sprayed to leaves of maize cultivar JK2010. The results showed that spraying Fe,Zn and Se fertilizers significantly increased Fe,Zn and Se contents in JK2010 seeds. Fe and Zn promoted each other to increase their contents in seeds. Selenium promoted the Zn accumulation,whereas Fe and Zn slightly inhibited Se accumulation. Application of Fe,Zn and Se fertilizers and their combinations promoted Ca accumulation in maize seeds,and presented different effects on Cu accumulation. Overall,Fe,Zn and Se fertilizer didn’t affect the accumulations of Mn,Mg and P elements. The mixed Fe/Zn/Se fertilizer extremely significantly increased Fe,Zn and Se contents in maize seeds,which provides a novel strategy for increasing Fe,Zn,and Se contents in crop grains. The usage of Fe/Zn/Se fertilizers also presents varied influence on the contents of several other mineral elements in maize seeds.

Key words: iron, zinc, selenium, corn, biofortification

LI Wen-zong, LI Wei-hua, XU Miao-yun, WANG Lei. Analysis of Mineral Elements in Maize Kernel Treated with Leaf Fertilizers[J]. Biotechnology Bulletin, 2018, 34(5): 110-116.

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