Question on reproduction in rose plant was not clear in the test on plants ... Was the question, "through which part does the rose plant reproduce?" Roses develop and grow from buds don't they?
Reproduction Rose culture occurs via four methods: seed, cuttings, layering and grafting. Seeding is the only means of propagation through sexual reproduction and allows more genetic diversity. Asexual reproduction via the other methods produces plants that are true to the parents. Cuttings are a common way to produce plants genetically identical to the parent. Best done in summer and early fall, cuttings of young stems that have just flowered are taken and wounded by making a slit near the base. They are then placed in a pot of sand or soil and kept moist until roots establish themselves. Layering is a similar process, whereby gardeners wound a stem, bend it toward the ground and cover it with soil to produce a new plant. Grafting occurs when stems are connected with vigorous rootstocks and allowed to grow together to produce hybrids, usually producing more uniform flowers.
Propagation by Seed Sexual propagation of roses can be slow and not entirely successful. Hybrid tea roses have difficulty producing rose hips and seeds, while old garden and shrub varieties are able to produce them more easily. Rose flowers have both male and female parts. Anthers bearing pollen are on the outside. The stigma and underlying ovaries, covered by petals, are in the center. In controlled pollination, pollen from mature anthers may be transferred by hand to a selected flower when pistils appear sticky. To prevent unwanted pollination, cover the pollinated flower with a plastic bag. Pollination has occurred when the base of the flower, known as the hip, begins to swell. Rose seeds take approximately four months to form.
Rose culture occurs via four methods: seed, cuttings, layering and grafting. Seeding is the only means of propagation through sexual reproduction and allows more genetic diversity. Asexual reproduction via the other methods produces plants that are true to the parents. Cuttings are a common way to produce plants genetically identical to the parent. Best done in summer and early fall, cuttings of young stems that have just flowered are taken and wounded by making a slit near the base. They are then placed in a pot of sand or soil and kept moist until roots establish themselves. Layering is a similar process, whereby gardeners wound a stem, bend it toward the ground and cover it with soil to produce a new plant. Grafting occurs when stems are connected with vigorous rootstocks and allowed to grow together to produce hybrids, usually producing more uniform flowers.
Propagation by SeedSexual propagation of roses can be slow and not entirely successful. Hybrid tea roses have difficulty producing rose hips and seeds, while old garden and shrub varieties are able to produce them more easily. Rose flowers have both male and female parts. Anthers bearing pollen are on the outside. The stigma and underlying ovaries, covered by petals, are in the center. In controlled pollination, pollen from mature anthers may be transferred by hand to a selected flower when pistils appear sticky. To prevent unwanted pollination, cover the pollinated flower with a plastic bag. Pollination has occurred when the base of the flower, known as the hip, begins to swell. Rose seeds take approximately four months to form.
