SOURCE-SINK RELATIONS IN FRUITS IV. FRUIT NUMBER AND FRUIT GROWTH IN STRAWBERRIES
The fruit/leaf-ratio was reduced to nearly half their values by removal of either primary, secondary and partly tertiary flowers or tertiary and partly quaternary flowers in young plants of the cultivar 'Dania'. Fruit size was affected according to the effect on rank, but removal of fruits itself had negligible effect on fruit growth, while ripening rate, concentration of dry matter in fruits and leaf growth showed minor increases. Density of achenes was slightly reduced. Smaller fruits (higher rank numbers) as a rule had the highest density of achenes, but the lowest concentrations of dry matter. The results are consistent with the idea of a slight growth-promoting effect associated with increased availability of assimilates occurring after removal of flowers, as well as of competition for assimilates taking place within a truss. However, the effects are small and probably without significance for fruit growth with the exception of very high fruit/leaf ratios.
Hansen, P. (1989). SOURCE-SINK RELATIONS IN FRUITS IV. FRUIT NUMBER AND FRUIT GROWTH IN STRAWBERRIES. Acta Hortic. 265, 377-382