It may be female.
The simplest method of propagating a tree asexually is rooting. A cutting (a piece of the parent plant) is cut and stuck into soil. Artificial rooting hormones are sometimes used to assure success. If the cutting does not die of desiccation first, roots grow from the buried portion of the cutting and it become a complete plant. Though this works well for some plants (such as figs and olives), most fruit trees are unsuited to this method.
Root cuttings (pieces of root induced to grow a new trunk) are used with some kinds of plants. This method also is suitable only for some plants.
2007-02-23 23:21:11
·
answer #2
·
answered by babitha t 4
·
0⤊
0⤋
Most flowering plants are hermaphroditic, having flowers with both male and female parts (called ‘perfect’). Less than 4% of plant species are dioecious (individuals with separate sexes), and many, but not all, have chromosome-mediated sex determination similar to that found in humans and other animals. The taxonomic distribution of separate sexes and chromosomal sex-determination systems in the flowering plants indicates that plant sex chromosomes have evolved relatively recently and by independent events in different plants. This is in contrast with the ancient origins of mammalian and insect sex chromosomes. In these plants the sex of the individual is determined at fertilization, thus passed along by cloning methods such as taking of cuttings. Examples of dioecious plants include date palm, hollies, yew, some poplars, ginkgo, persimmon, spinach, asparagus, ash, bittersweet, black gum, bayberry, buckthorn, cork tree, currant, fringe tree, hardy rubber tree, honey locust, juniper, Kentucky coffeetree, katsura tree, some maples, mulberry, osage orange, sea-buckthorn, smoke tree, spice bush, sumac, tree of heaven, and willow.
Some plants, however, are unisexual at one time in their lives. For example, in jack-in-the-pulpit, sex of an individual is correlated with size; smaller individuals are male and larger individuals are female, although the plants are genetically identical. In such case a cutting would display the same sex determination based on developmental state.
Many fruit trees have perfect flowers (contain both male and female parts) yet do not set fruit with their own pollen. They require pollen from another variety. Varieties in plants such as these are self incompatible (sometimes said to be "self-unfruitful"). Many apple, pear and plum varieties are self incompatible and require two or more varieties in the planting in order to get fruit. To assure adequate pollination, the different varieties should be selected such that they flower at the same time. In such cases, cuttings will yield plants that are “perfect” but will remain self incompatible and will still only set fruit when fertilized by pollen from a different variety.
2007-02-24 00:43:05
·
answer #5
·
answered by Jerry C 3
·
0⤊
0⤋