A Study on the Changes of Reducing sugar Content in Spring Maize

doi:10.3321/j.issn:1000-7091.1992.01.004

Abstract

Abstract: The changes of reducing sugar content were studied systematitally in the blade, blade sheath, stem,tassel and ear of spring maizc according to its distribution in different organs in this experiment,The results showed that the content of reducing sugar in the organs fluctuated considerably with growth and development of spring maize,During the jointint stage and the floret differentiation stage of the tassel, two peak values of reducing sugar content in blades revealed the reason why less N fertilizer is needed during the early growth stage and more during the later stages of spring maize under high-yield cultivation,The higher content of reducing sugar in the main growth organ was the physiological basis for its rapid formation;N fertilizers mainly affected blade growth,physiological metabolism activity,formation of the blade sheath and stem,and eventually the economic yield,The limiting factors of maize yield were'sources'rather than 'sinks'under local soil conditions.

Key words: Spring maize, Nutrient physiology, Reducing sugar

Liu Keli, Gao Julin. A Study on the Changes of Reducing sugar Content in Spring Maize[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1992, 7(1): 19-24. doi: 10.3321/j.issn:1000-7091.1992.01.004.

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