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Possibilities and limiting conditions for the genetic improvement of proteinyield in cereals with particular reference to nitrogen balance and requirements

By: Scholz, F.
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: 1984Description: pp. 269-277.Subject(s): Amino acids | Breeding methods | Nitrogen | Nitrogen content | Nitrogen metabolism | Nitrogen retention | Nutrient availability | Plant soil relations | Protein content | Nitrogen fertilizers AGROVOC In: Cerel Grain Protein Improvement615182Summary: Calculations, based on data on maize and barley, are presented which suggestthat additonal nitrogen requirements may be a serious limitation to breeding forincreased protein yield per unit area. However, under unchanged fertilizer conditions, protein yield may still be increased by 2 methods: (1) by improved Nuptake from the soil, and (2) by improved N mobilization and translocation from vegetative organs to the grain. It is further calculated that breeding for improved protein quality, that is, a changed amino acid composition, should not significantly affect N requirements.Collection: Reprints Collection
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Item type Current location Collection Call number Copy number Status Date due Barcode Item holds
Reprint Reprint CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

Reprints Collection REP-3411 (Browse shelf) 1 Available 615182
Total holds: 0

Tables, references p. 276-277

Calculations, based on data on maize and barley, are presented which suggestthat additonal nitrogen requirements may be a serious limitation to breeding forincreased protein yield per unit area. However, under unchanged fertilizer conditions, protein yield may still be increased by 2 methods: (1) by improved Nuptake from the soil, and (2) by improved N mobilization and translocation from vegetative organs to the grain. It is further calculated that breeding for improved protein quality, that is, a changed amino acid composition, should not significantly affect N requirements.

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