Propagation. African violets are easily propagated by
division (see Potting)
. You also can get more violets with leaf-petiole cuttings; however, this takes longer to produce a flowering plant. African violets can be grown from seed, but only a few varieties will come true.
What type of asexual reproduction is a African Violet?
African violets (Saintpaulias) are propagated
from seed or, more frequently, from cuttings
.
Do violets reproduce sexually or asexually?
Violet plants produce a number of relatively large, showy flowers; these flowers attract insects that transfer pollen as they travel from plant to plant in search of nectar. Successful pollination results in the fusion of gametes, so this is a type of
sexual reproduction
, and the offspring are genetically unique.
Do African violets make seeds?
African violets do not produce seeds
that look exactly like the parent plants. However, a reputable seller will test the seeds produced from a specific cross-pollination, and they will advertise the general type of African violets that the mix produces.
Which of the following reproduces asexual method?
Animals that reproduce asexually include
planarians
, many annelid worms including polychaetes and some oligochaetes, turbellarians and sea stars. Many fungi and plants reproduce asexually. Some plants have specialized structures for reproduction via fragmentation, such as gemmae in liverworts.
What are the different methods of asexual reproduction?
Asexual reproduction includes
fission, budding, fragmentation, and parthenogenesis
, while sexual reproduction is achieved through the combination of reproductive cells from two individuals.
What are the plants that reproduce sexually?
Flowering plants
reproduce sexually through a process called pollination. The flowers contain male sex organs called stamens and female sex organs called pistils. The anther is the part of the stamen that contains pollen. This pollen needs to be moved to a part of the pistil called the stigma.
What is asexual reproduction in plants?
Asexual reproduction
produces individuals that are genetically identical to the parent plant
. … Some plants can produce seeds without fertilization via apomixis where the ovule or ovary gives rise to new seeds. Advantages of asexual reproduction include an increased rate of maturity and a sturdier adult plant.
What is the method of reproduction of onion?
Onions can be grown from bulbs or seeds. Through
vegetative propagation
, onions can be grown from bulbs. The bulb grows by the growth of the radicle and the flag leaves, after this, the true leaves emerge. Self-propagation is a natural method of asexual reproduction.
How do you propagate African violets from cuttings?
- Step 1: Remove and trim leaf. …
- Step 2: Cut leaf petiole. …
- Step 3: Root the leaf cutting. …
- Step 4: Plantlets at 12 weeks. …
- Step 5: Separate plantlets from leaf cutting. …
- Step 6: Prepare pot for plantlet. …
- Step 7: Pot plantlet. …
- Step 8: You’re done!
Which of the following is the method of reproduction?
Vegetative reproduction,
budding and spore formation
are the Asexual methods of reproduction. Asexual Reproduction: The reproduction of a new organism from a single parent without the involvement of sex cells or gametes is known as asexual reproduction.
Can humans reproduce asexually?
Asexual reproduction in humans is carried out without the immediate use of fertilization of the male and female sex cells (the sperm and egg). … However, there is a mode of asexual reproduction which
occurs naturally in a woman’s body
which is known as the monozygotic twinning.
How do you grow violet seeds?
Sow Violet seeds
early in the season
and cover lightly with 1/8′′ soil. Water thoroughly once. They germinate slowly. Transplant Violet plants into your garden after the last frost date for your area.
What is asexual reproduction example?
Asexual Reproduction Examples
Bacterium undergoes binary fission
in which the cell divides into two along with the nucleus. Blackworms or mudworms reproduce through fragmentation. Hydras reproduce through budding. Organisms such as copperheads undergo parthenogenesis.
What are the 10 methods of reproduction?
The different types of asexual reproduction are
binary fission, budding, vegetative propagation, spore formation (sporogenesis), fragmentation, parthenogenesis, and apomixis
. The organisms that reproduce through asexual means are bacteria, archaea, many plants, fungi, and certain animals.
What are the 3 types of reproduction?
- Asexual Reproduction.
- Sexual Reproduction.
What are the different methods of reproduction in plants give examples?
In plants there are two modes of reproduction, asexual and sexual. There are several methods of asexual reproduction such as
fragmentation, budding, spore formation and vegetative propagation
. Sexual reproduction involves the fusion of male and female gametes.
What are 3 types of asexual reproduction in plants?
- Fission.
- Budding.
- Spore formation.
- Regeneration.
- Fragmentation.
- Vegetative propagation.
How do plants reproduce step by step?
The most generalized form of this process requires four steps:
pollination, germination, penetration of the ovule, and fertilization
. After fertilization, the zygote divides to form an embryo. Double fertilization is common in angiosperms.
How do plants reproduce without seeds?
Some plants, like ferns and mosses,
grow from spores
. … Other plants use asexual vegetative reproduction and grow new plants from rhizomes or tubers. We can also use techniques like grafting or take cuttings to make new plants.
What are 5 types of asexual reproduction?
There are a number of types of asexual reproduction including
fission, fragmentation, budding, vegetative reproduction, spore formation and agamogenesis
.
What are 3 asexual reproduction examples?
- Binary fission: Single parent cell doubles its DNA, then divides into two cells. …
- Budding: Small growth on surface of parent breaks off, resulting in the formation of two individuals. …
- Fragmentation: Organisms break into two or more fragments that develop into a new individual.
What’s the difference between sporulation and budding?
In budding, a
new organism is developed
from a small part of the parent’s body. In sporulation, the organism develops from sporangium (sac-like structures) that contain spores. During favourable conditions, the sporangium bursts open and spores are released, which germinates and give rise to new organisms.
How do Mosses reproduce?
Mosses reproduce by spores
, which are analogous to the flowering plant’s seed; however, moss spores are single celled and more primitive than the seed. Spores are housed in the brown capsule that sits on the seta. … Some mosses have cups on their tops that produce sperm, these are male plants.
How does a rose reproduce?
The sexual reproduction in rose plants happens with
the fusion of male and female gametes produced by plants
. … The parent rose plant disperses the seeds into the atmosphere. In favorable conditions, those seeds germinate and the embryo grows into a new rose plant.
How do ginger reproduce?
Ginger has low genetic diversity because it reproduces
asexually by vegetative propagation
. Zingiber officinale primarily produces from spreading the rhizome. … The stem generated from the plants’ rhizome forms a bud that becomes a complete plant, a clone of the original plant.
How do erodium spread their seeds?
SUMMARY The filaree (Erodium cicutarium), a small, flowering plant related to geraniums, possesses a unique seed dispersal mechanism:
the plant can fling its seeds up to half a meter away
; and the seeds can bury themselves by drilling into the ground, twisting and untwisting in response to changes in humidity.
Can you root an African violet leaf in water?
It is relatively easy to propagate African violets vegetatively by rooting cuttings; a leaf with an intact petiole, or leaf stem, can develop roots if properly placed in a rooting medium. African violet
leaf cuttings can successfully produce roots in water or soil
.
How do you propagate violets in water?
Poke a hole in the
plastic wrap
with a chopstick or skewer. Stick the leaf in the plastic so that the stem touches the water. Make sure you place the stem in water immediately after cutting; African violet leaves will start to harden up within a few minutes of exposure to air. Place in bright, indirect sunlight.
How do African violets pollinate?
Q-Is it possible to cross different plants of African violets to get new varieties? A-Yes, all you need are two different African violets in bloom at the same time. To initiate the cross, use tiny manicure scissors to clip open one of the yellow pollen sacs in the center of a fully open flower.
How long does it take for violet seeds to germinate?
After stratification, seeds can be sown in flats. Cover with a thin layer of soil, approximately 1⁄4” and keep moist. Seeds should begin to germinate within
21-35 days
. Transplant outdoors in mid to late spring once last possibly of frost has passed.
How often do you water violet seeds?
“How often to water African violets?” is perhaps the most pondered African violet dilemma. The best guide is to feel the top of the soil: if it is dry to the touch, then it is time to water. African violets should be
allowed to dry out between each watering
for best results. Overwatering can kill a plant.
When should I sow violet seeds?
When sowing violet from seed, sow in a nursery from
June-July onwards, up until September
. Broadcast seeds in special seedling soil mix and cover the seeds lightly. Drizzle water over lightly on a regular basis to keep the substrate moist. Put the seedlings near light, but not in direct sunlight.
Do violets need sun?
The most common reason African violets don’t bloom is because they aren’t getting enough light. African violets
need indirect sunlight
, direct can burn the leaves. Choose a north- or east- facing window for best results. Keep plants away from cold glass and rotate the pot once a week so all leaves receive light.
Which of the following reproduces asexual method Mcq?
Solution:
Hydra
reproduces by asexual mode of reproduction. It reproduces by budding.
Which of the following method of reproduction proved for the first time that DNA is genetic material?
The progeny of the phages that were labeled with radioactive phosphorus remained labeled, whereas the progeny of the phages labeled with radioactive sulfur were unlabeled. Thus,
the Hershey–Chase experiment
helped to confirm that DNA, not protein, is the genetic material.
Which of the following reproduction methods cause variation among organisms?
Genetic variation can be caused by
mutation
(which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism’s offspring).
Can a girl get pregnant by another girl?
The short answer to this question is
no, not through sexual intercourse
. Two cisgender women (meaning assigned female at birth) in a relationship cannot become pregnant without some form of assisted reproductive technology (ART).
Can a girl be pregnant without a man?
The answer is —
yes
! While it isn’t likely, any activity that introduces sperm to the vaginal area makes pregnancy possible without penetration. To understand how, let’s consider how pregnancy usually occurs. The process is typically pretty straightforward.
