Fruit quality
In the past, traditional breeding paid particular attention to such issues as
improving crop yield. However, consumers are paying more and more attention
to final product quality and composition. As an example, consumers require
fruits with good nutritional properties (vitamins, sugars, proteins, minerals,
antioxidants and others) and are increasingly interested in functional ingredients
which may help reduce the risk of certain cancer or cardiovascular disorders
(e.g. resveratrol, licopene, flavonoids, oils with proper saturated/unsaturated
fatty acid ratio, antioxidants, etc.). The increasing demand for freshness together
with increasingly complex supply chains increases the need for fruits with a
longer shelf life (Table 3.2).
New varieties are needed for organic agriculture, since the demand for
organic fruits increases yearly but suitable genotypes, possibly resistant to major
pests and diseases, with their toxins may be more dangerous than chemical
residues. In addition, fruits should be harvested ripened for optimal quality but at
the moment this is not possible as they would degrade rapidly.