Research conducted in New Zealand has shown that enhancing the pollination of the variety Braeburn not only increases fruit set but it also increases seed numbers and the calcium content of the harvested fruits (Volz et al., 1996).
- Further research in New Zealand showed that, with increasing distance from pollinator trees, Braeburn fruits had lower seed numbers, increased poor shape, lower calcium concentrations and increased incidence of bitter pit and lenticel blotch (Brookfield et al., 1996).
- Research conducted in Russia many years ago suggested that choice of pollinators could affect the size, shape and quality of the fruits produced.
- However, attempts both at East Malling and Long Ashton to substantiate this effect (known as metaxenia) have proved unsuccessful.
- The only likely effects of pollinator choice on fruit size or shape is possibly via their effects on seed numbers.
- Ensure that apples set with adequate numbers of seeds as this will improve fruit size and shape and also increase calcium uptake on varieties such as Braeburn.