Genotypic differences in concentrations of iron, manganese, copper, and zinc in polished rice grains

Identification of genotypic differences in micronutrient concentrations of staple food crops is essential if plant breeding strategies are to improve human mineral nutrition. The concentrations of zinc (Zn), iron (Fe), copper (Cu), and manganese (Mn) in polished grains of 285 rice (Oryza sativa L.)...

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Published in:Journal of plant nutrition 1998-01, Vol.21 (7), p.1453-1462
Main Authors: Yang, X. (Zhejiang Agricultural University, Hangzhou, China.), Ye, Z.Q, Shi, C.H, Zhu, M.L, Graham, R.D
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
AMELIORATION DES PLANTES
Biological and medical sciences
CINC
COBRE
CONTENIDO PROTEICO
COPPER
CUIVRE
FER
FITOMEJORAMIENTO
Fundamental and applied biological sciences. Psychology
Generalities. Genetics. Plant material
GENETIC RESOURCES
Genetic resources, diversity
GENETIC VARIATION
Genetics and breeding of economic plants
GENOTIPOS
GENOTYPE
GENOTYPES
GRAINE
HIERRO
IRON
LISINA
LYSINE
MANGANESE
MANGANESO
NUTRIENT CONTENT
NUTRITIVE VALUE
ORYZA
ORYZA SATIVA
PLANT BREEDING
Plant material
PLANT RESOURCES
PROTEIN CONTENT
RECURSOS GENETICOS
RECURSOS VEGETALES
RESSOURCE GENETIQUE
RESSOURCE VEGETALE
SEEDS
SEMILLA
TENEUR EN PROTEINES
VALEUR NUTRITIVE
VALOR NUTRITIVO
VARIACION GENETICA
VARIATION GENETIQUE
ZINC
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Summary:Identification of genotypic differences in micronutrient concentrations of staple food crops is essential if plant breeding strategies are to improve human mineral nutrition. The concentrations of zinc (Zn), iron (Fe), copper (Cu), and manganese (Mn) in polished grains of 285 rice (Oryza sativa L.) genotypes and the relationship between concentrations of the four micronutrient elements and concentrations of protein and lysine were examined. Significant differences (P 0.01) were found in the concentrations of Zn, Fe, Cu, and Mn in polished rice with a fairly normal distribution among rice genotypes. On average, Cu and Zn concentrations of Indica rice were about 2-fold higher than Japonica rice, while Fe concentrations of Japonica rice were slightly higher than Indica rice. Among Indica rice genotypes, red rice contained higher Zn than white rice. Protein and lysine concentrations differed considerably among the genotypes, but no close relationship between the micronutrients and protein or lysine concentrations was observed among genotypes. Sixteen genotypes with significantly higher grain Zn, Fe, Cu, and Mn concentrations were identified
ISSN:0190-4167
1532-4087
DOI:10.1080/01904169809365495