High self-paternity levels and effects of fertilised-seed number on size of strawberry fruit

Cross-pollination can increase fruit production in self-incompatible and self-compatible fruit crops. However, it is often unclear what proportions of the fruit crop result from cross-pollination. Here, we aimed to identify the number of fertilised seeds and the proportions of cross-pollinated seeds at increasing distances from a cross-pollen source in strawberry cultivars Red Rhapsody and Sundrench. We analysed to what extent the proportions of cross-pollinated seeds and the number of fertilised seeds affected fruit size and quality including colour, firmness, Brix and acidity.