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Published analyses of the changes in yield potential of the sunflower crop in Argentina across cultivars released between 1930 and 1995 suggested that part of the observed increase in yield potential could have arisen from a larger contribution from non-structural carbohydrates (NSC) present in the crop at anthesis. To test this idea, stems and receptacles were harvested at intervals over the anthesis–post-physiological...
Higher than normal rainfall during grain filling of sunflower (Helianthus annuus L.) has been shown to be associated with reductions in grain yield. This yield loss has been variously attributed to low radiation (cloudy weather) or to the increased incidence of diseases. Impaired physiological processes directly linked to transient waterlogging arising from excess rainfall could also reduce yield...
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