Endosperm Cell Proliferating and Its Relation to Grain Weight in Different Types of Maize

doi:10.3321/j.issn:1000-7091.2006.02.006

Abstract

Abstract: Cell proliferation is one of the most important characters for life.The dynamic of endosperm cell proliferation and it's relation to grain weight were studied using four types of maize.The result showed that the proliferation process of endosperm cell could be better modeled with Richards equation.The endosperm cell number of different cultivars had significant difference.It showed that the endosperm cell number of Yuyu22 was the greatest,the endosperm cell number of Huangnuol was the smallest,the Tianyu6 and the Baoliel were between other two cultivars.And the endosperm cell number of the middle spike was the greater than that of upper part spike,the endosperm cell number of lower part spike was between other two positions.For the same type maize the endosperm cell number was significantly related to grain weight,but for the different type maize the grain weight was not mainly determined by the number of endosperm cell number.

Key words: Maize, Endosperm, Cell proliferating, Grain weight

CLC Number:

S513.01

WANG Xiao-yan, DONG Shu-ting, GAO Rong-qi, ZHANG Hai-yan. Endosperm Cell Proliferating and Its Relation to Grain Weight in Different Types of Maize[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2006, 21(2): 23-26. doi: 10.3321/j.issn:1000-7091.2006.02.006.

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