Journal
PLANT CELL AND ENVIRONMENT
Volume 28, Issue 11, Pages 1388-1395Publisher
WILEY
DOI: 10.1111/j.1365-3040.2005.01371.x
Keywords
carbon cost; crop performance; metabolic pathways
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In the past great efforts have been made to gain a thorough understanding of the processes involved in carbon fixation but the fate of the acquired carbon has been somewhat neglected, although this aspect is crucial for improving yield performance without diminishing the quality of the harvested organs. To contribute to the crucial debate on that topic the aim of the present study was to propose some unbiased components concerning in particular grain legumes: 'Is there any antagonism between high yield and increased nutritional quality, with a focus on protein content?' An original approach has been used to study the impact of the modification of seed composition on the crop production, which combines theoretical calculations of energetic cost and field yield data. When applied to a wide range of species with varying seed composition, a plurispecific negative relationship between the theoretical carbon costs of seed production and the observed yields was demonstrated. The high-throughput of genetic markers could result in large-scale screening of seed quality parameters and such studies, while evaluating the impact of seed composition on crop yield, could also be used to provide data to forecast the economic impact of a new line with an original composition compared with its economically enhanced value.
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