Although many plants have male and female characteristics, some species of plants produce separate male and female varieties. These plants, known as dioecious plants grow from seeds with either male or female characteristics. The differences between male and female versions of dioecious plants often allow the sex of the specific plant samples can be easily determined, although these differences may be difficult to detect in some species.
Display the differences between the sexes
Most dioecious plants show no differences during the vegetative phase, in which the plant grows, but does not display flowers. Although there are differences at the genetic level, as proven during the experiments on white campion, they can not be considered active until the plant begins the transition from the vegetative growth phase of the flowering stage. Once the transition is made, starting the plant forms outside sexual characteristics and the sex of the specific plant can be determined.
The main difference between male and female dioecious plants is in the flowers. Male plants produce male flowers, the stamens, which included producing pollen. Female plants produce female flowers that contain a stamp and ovaries. In some species of plants, flowers that appear virtually identical, while other plants offer significant differences between the male and female varieties. The Japanese Skimmia as has male flowers more attractive than the female plant the flowers.
In fruiting plants are dioecious, fruiting occurs when female plants are pollinated by a male plant. Once pollinated, the flowers develop on the female plants in full fruit or berries. Male plants produce no fruit at all, even if their flowers contain underdeveloped female organs. The owners of some plants, such as the ginkgo tree to use this to their advantage, buying only male trees so that they do not have to talk about their trees produce fruit that they do not want to care.
Some dioecious plant species to plants that are subdioecious, with both male and female flowers on the same plant occasionally. This is different than the "perfect" flowers of non-dioecious plants produced that contain both male and female organs in the same flower. These flowers are either male or female, able to pollen or seeds and fruits, depending on the flower sex. When this occurs, it is impossible to determine the sex of the plant, as it considered to be a hermaphrodite. May be grown all seeds produced by a hermaphrodite plant trait and carry the hermaphrodite plants from these hybrid seeds (or produce more seeds. In hermaphroditic plants)