The central part of a flower that supports the sepals, petals, stamens and pistils. It may be enlarged and fleshy as in the strawberry. Self- incompatible Describes the situation where pollen from one flower fails to fertilise the same and other flowers on the same plant or clone, or on other genetically similar plants. In many cases the pollen fails to develop tubes, preventing fertilisation. Cross-compatible plants are generally genetically different.
Staminate flowers are male flowers, having stamens but no functional female parts.
Statistical significance should not be confused with biological or economic significance. The stalk between the stigma and the ovary is called the style . Tetraploid Describes an organism that has four sets of chromosomes in each cell - the typical state of all animals and most plants is diploid, two sets of chromosomes. Tetraploids that have been artificially created usually have larger plant parts than their diploid ancestors. This aims at cross-pollination, since the insect is dusted with pollen from flowers previously visited.