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《Journal of Agricultural University of Hebei》 2001-04
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Distribution of mineral elements along the maize ear and its relationship with kernel abortion

ZHANG Feng-lu1,WANG Zhi-min2,ZHAO Ming 2,WANG Shu-an2 (1 Agricultural University of Hebei, Baoding 071001,China; 2 China Agricultral University, Beijing 100091, China)  
Studies were conducted using typical maize hybreds wi th and without tip kernel abortion. Comparative measurements were conducted on t he changes of 9 mineral element concentrations at tip and middle of maize ears b e fore and after kernel abortion using an inductively coupled plasma emission spec trometer. Results showed that there were no significant differences of mineral element concentr ations between kernels at different ear positions at the same days after silking and at the same ear positions while diferent ear types; the distribution of mi neral elements showed the same trend as kernels; the contents of different miner al elements between kernels and the connected cobs showed that there were higher concentrations of B,Ca,K,Mg,P and Zn in kernels than in cobs, while hig her concentrations of Co,Fe and Mo in cobs than in ears. The difference of min eral elements was not the direct cause of kernel abortion.
【Fund】: 河北省博士基金课题
【CateGory Index】: S513
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