Abstract
Seed weights at specific positions within inflorescences of field bean plants (Vicia faba L.) were varied by removal of flowers. The inflorescences of two regions (nodes 3+4 and nodes 5+6, counted from the bottom of the plant) were used for manipulations and investigations. The two proximal flowers of the manipulated inflorescence were removed in order to vary the development and seed weights of distal pods (see Fig. 1). Dry matter accumulation and IAA- and ABA-concentrations in seeds were investigated during the filling period. Treatment effects in both regions were similar during two seasons. The removal of proximal flowers prevented the usually observed drop of distal pods and favoured the accumulation of dry matter and IAA in seeds, whereas the variation of ABA-concentrations partly depended on interaction with season. Whether these effects contribute to a signal leading to the establishment of processes preceeding dry matter accumulation or are a consequence of such processes is questionable.
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Peter, M., Aufhammer, W. & Bangerth, F. Dry matter accumulation at specific pod positions on field bean (Vicia faba L.) plants and possible relations with indoleacetic acid and abscisic acid levels. Plant Growth Regul 7, 261–270 (1988). https://doi.org/10.1007/BF00037635
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DOI: https://doi.org/10.1007/BF00037635