What Are Tassels In Biology Class 12? by westudyhere Female flower clusters are clustered on the stem of the corn cob plant, indicating that it solely produces female flowers. This flower’s surface is coated in the spat. These are known as tassels because their length causes them to dangle from the blooms in the form of a cluster.
Table of Contents
What is the tassel?
1 : a dangling ornament made by laying parallel a bunch of cords or threads of even length and fastening them at one end. 2 : something resembling a tassel especially : the terminal male inflorescence of some plants and especially corn.
What are tassels in biology 12?
The corn cob plant has female flower clusters arranged on the stem which means it only blooms female flowers. These flowers are covered with spath. The style of these flowers are very long hence these overhang from the flowers in the form of a bunch which are known as tassels.
What is tassel seed?
Tassel seed 2 mutant plants develop pistillate florets instead of staminate florets in the tassel. In addition, the ears of tassel seed 2 plants display irregular rowing of kernels due to the development of the normally suppressed lower floret of each spikelet.
What is tassel in agriculture?
The tassel sits at the very top of the plant and produces the pollen. The ear of corn with the silk then is the female flower. When the wind blows, pollen from the tassel will shake loose and fall on the silk. Each strand of silk is connected to a different seed on the ear of corn.
What has a tassel?
The male flower of the corn plant is known as a corn tassel. After the bulk of the plant growth is complete, tassels will appear on top of the plant. Corn plant tassels can be green, purple, or yellow. The tassel's job is to produce pollen that encourages the growth and ripening of the corn ear.
What is Apomixis Ncert?
Apomixis is a mechanism to produce seeds without fertilization. This mechanism produces clones, hence can be considered as a form of asexual reproduction.
What do you mean by Apomixis?
Apomixis in flowering plants is defined as the asexual formation of a seed from the maternal tissues of the ovule, avoiding the processes of meiosis and fertilization, leading to embryo development.
What is water pollination called?
Water pollinated plants are aquatic. Pollen floats on the water's surface drifting until it contacts flowers. This is called surface hydrophily, but is relatively rare (only 2% of pollination is hydrophily).
When Should corn tassel?
Corn Varieties and Tasseling Time
The corn tassels about 20 days before the kernels are ready for harvest. An early variety will tassel approximately 50 days after germination and growth begins, while a main crop variety may not tassel until 80 days after germination.
Are there male and female corn plants?
Anatomy of the Corn Flower
Corn is monoecious, meaning that it contains both male (tassel) and female (ear) flowers on each plant. However, unlike many other monoecious grasses and dicots, male and female reproductive structures are separated on the corn plant.
What is tasseling stage in maize?
Reproductive Growth Stages
Tassel (VT) – bottom-most branch of tassel completely visible and silk has not emerged. Silking (R1) – silks visible outside the husks. Blister (R2) – kernels white on outside, clear liquid inside. Milk (R3) – kernel yellow outside, milky white fluid inside.
What is a maize ear called?
A corncob, also called cob of corn or corn on the cob, is the central core of an ear of corn (also known as maize). It is the part of the ear on which the kernels grow. The ear is also considered a "cob" or "pole" but it is not fully a "pole" until the ear is shucked, or removed from the plant material around the ear.
What is ear of corn?
“Ear" comes from the ancient word “ahs," which meant “husk of corn." In English, sometimes the ear also is referred to as a “cob" or a “pole." The ear is the spiked part of the corn plant that contains kernels.
What is corn stamen?
Each floret contains three anthers. An anther and its attached filament comprise the stamen of the male flower. The anthers are those "thingamajigs" that hang from the tassel during pollination.
Is corn a maize?
corn, (Zea mays), also called Indian corn or maize, cereal plant of the grass family (Poaceae) and its edible grain.
What is the meaning of tassel in Urdu?
Noun. Adornment consisting of a bunch of cords fastened at one end. جھالر لٹکن چنور
What is apomixis and polyembryony?
Apomixis is a type of asexual reproduction wherein production of seeds occur without fertilisation. Here, the asexual reproduction mimics sexual reproduction. Polyembryony refers to formation of many embryos from one fertilised egg. It is a type of sexual reproduction.
What is Diplospory and apospory?
Diplospory is the second type of gametophytic apomixis. Diplospory differs from apospory in the origin of the unreduced embryo sac. Recall that in apospory, the unreduced embryo sac originates from a somatic cell of the ovule.
What is apomixis Class 11?
Apomixis is the process of asexual production of seeds, without fertilisation. The plants that grow from these seeds are identical to the mother plant. Uses. (i) It is a cost effective method for producing seeds. (ii) It has great use for plant breeding when specific traits of a plant have to be preserved.
What is Amphimixis and apomixis?
Amphimixis refers to sexual reproduction, where the fusion of two gametes takes place. Apomixis is asexual reproduction, which occurs without fertilisation. Apomictic seeds are produced without fertilisation.
Is parthenogenesis and apomixis same?
Apomixis is a type of asexual reproduction where the embryo develops from the seeds without the process of fertilisation. Parthenogenesis is a type of apomixis where the egg cells help in the development of an embryo. It produces a genetically identical clone of the mother cell.
What is triple fusion?
Definition of triple fusion
: the fusion involving two polar nuclei and a sperm nucleus that occurs in double fertilization in a seed plant and results in the formation of the endosperm.
What is cross pollination called?
cross-pollination, also called heterogamy, type of pollination in which sperm-laden pollen grains are transferred from the cones or flowers of one plant to egg-bearing cones or flowers of another.
What is pollination by snakes called?
Pollination by snakes is referred to as Ophiophily. Ophiophily is observed in Santalum.
What is the stalk of ovule called?
Ovules are attached to the placenta in the ovary through a stalk-like structure known as a funiculus (plural, funiculi).
Is corn a grass or grain?
Identification. Corn, Zea mays, is a member of the grass family Poaceae, formerly known as Gramineae. Instead of being relatively short like wheat, corn grows into a tall stalk, up to 20 feet. Sweet corn, the variety that you eat fresh, is the result of a mutation that occurred in the 1800s.
What is maize flower?
Maize is a monoecious plant that produces male flowers on a terminal tassel (Fig. 1A) and female flowers on lateral ears (Fig. 1B), which arise in the axils of vegetative leaves. The tassel initiates several long, indeterminate branches at the base while the ear consists of a single spike with no long branches.
Is corn a seed?
“Corn is a seed derived from the flower/ovary of the corn plant,” he says, “so is technically a fruit.” More specifically, corn is a caryopsis, which is a type of fruit in which the seed coat is tightly fused with the pericarp (that's the fleshy bit, like the part of a peach that you eat).
What is crop growth stages?
The stages that plants go through are from seed to sprout, then through vegetative, budding, flowering, and ripening stages.