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|Type:||Artigo de evento|
|Title:||Relationship Among Maize Endosperm Characteristics Of Normal And Sugary Opaque-2 Kernels During Development|
Da Silva W.J.
|Abstract:||A normal endosperm and its double mutant sugary opaque-2 counterpart of a maize synthetic were compared for physical and chemical characteristics during 7 weeks at weekly intervals beginning 7 days after pollination. Nitrogen, potassium, magnesium, and phosphorus in the endosperm were determined and correlated with fresh weight, dry weight, and water content. Data indicated that nitrogen concentration is similar in both endosperms with the exception at 7 weeks after pollination (WAP). However, N content per endosperm was different in both endosperms from 3 to 7 WAP. Normal endosperms were consistently higher than sugary opaque-2 endosperms in N content with maximum differences reaching 57% at late maturity. With a different pattern, potassium, magnesium, and phosphorus were significantly higher in concentration and content per endosperm in sugary opaque-2 from 3 to 6 WAP. Nitrogen is highly correlated with endosperm dry weight for both normal and su o2 endosperms. Potassium, Mg, and P showed high correlation with water content in both su o2 and normal endosperms. © 1979 American Chemical Society.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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