Question

explain the sexual reproduction in hibiscus?

Answer 1

Hibiscus plants are members of the mallow plant family, Malvaceae, which includes nearly 300 species. Plant diversity encompasses tropical and temperate selections with single or double flowers in a color palette that includes shades of white, pink, red and yellow. Tropical hibiscus (H. rosa-sinensis) is usually grown as an outdoor container plant in warm months because it is perennial only in U.S. Department of Agriculture plant hardiness zones 9 through 10. Hardy hibiscuses, such as swamp hibiscus (H. coccineus), rose mallow (H. moscheutos) and rose of Sharon (H. syriacus) are cold hardy to U.S. Department of Agriculture plant hardiness zone 5.

Reproduction by Seeds

In the wild, Hibiscus species reproduce sexually when pollen from male flowers reaches female flowers for fertilization. Wind and wildlife transfer pollen, and large, colorful flowers are adapted to attract pollinators. Birds, butterflies and bees are common visitors to hibiscus plants, but they must visit quickly after blooms open since some species' flowers last for only a day. Successful pollination results in producing seeds, which are encased in pods. Seeds of many species, such as swamp hibiscus and rose mallow, resemble those of okra, a mallow family relative. When pods mature, they dry and crack open to release seeds, which fall to the ground and germinate to make more plants.

Reproduction by Stems and Roots

Human intervention can assist hibiscus plants to reproduce in other ways that sometimes happen in nature. Mimicking what happens if a broken stem falls to the ground, you can take a cutting and push it into the ground, or in soil within a container. Keep it moist until roots sprout and you’ll have a new plant. In nature, very large plants have low-lying limbs that may be pushed down by upper limbs until they touch the ground. Where limbs maintain contact with the soil and remain moist, roots form and create new plants adjacent to the parent plant -- this is propagation by layering. You can layer your plants by bending a stem that grows close to the ground and securing it with a brick to keep it in contact with the soil. When roots form, remove the brick, clip the new plant below the roots and plant it elsewhere in your garden. Periodically, you can divide your plants by digging plants and cutting through the crown. Be sure to keep some roots attached to each section. Plant each section to start new plants.

Considerations

Some plants will not produce seeds if flowers are unsuccessfully pollinated. If plants are cross-pollinated by another species, plants may not grow true to the seed-parent plant. Many hybrid cultivars may not produce seeds as a result of breeding programs that breed vigor into plants by eliminating their reproductive capability. Some cultivars hold plant patents that prohibit their propagation, and it is unethical and illegal to reproduce these plants. Reputable horticulturists hold licenses that permit them to propagate patented plants for sale.

Answer 2

Answer:

Stamen: is a male part of the flower it has a long filament with a elongated sac like structure its tip called the enter the enter hold the Pollen sacs inside which pollen grains are found

pistil: is the female part of the flower it has a tube like structure called the style. the style is oval-shaped at the base this is the ovary the tip of the style is sticky it is called the stigma it help to attach the pollen grains during pollination