Vegetative propagation and seed dispersal - class-VI
This is an example of a very old viable seed excavated from Arctic Tundra. The seed germinated and flowered after an estimated record of $10,000$ years of dormancy. It is?
Parachute type of mechanism of seed dispersal is found in _____________.
Pappus occurs in compositae for
Which of the following animal doesn't help in the scattering of seed?
Which of the followig seed travels only short distance?
Aril is present in _____________.
In lettuce, red light is most effective in breaking seed dormancy because it.
Small amount of nucleolus persisting in the mature seed is known as ____________.
Which of the following pairs are correctly matched?
a. Tegmen: Part of seed coat which actually is the dried up inner integument.
b. Caruncile- A spongy outgrowth of helium and absorbs water
c. Endothelrum: Inner epidermal layer of integument in unitegmic ovules and functions similar to another tapetum
d. Epithelium: Tissue of the scutellum abutting the endosperm; glandular in nature and secretes enzymes.
Select the correct answer.
After-ripening dormancy has been reported in the seed.
Select the mismatched pair of organism and its mode of multiplication.
Vegetative propagation is the term used for
Which of the following is not used for vegetative propagation?
A process of multiplication in which a portion of fragment of plant body function as propagule and develops into new individual is called
Vegetative reproduction by layering is found in:
Which of the following involves the formation of new plants from roots, stems, and leaves?
Which is not a method of vegetative propagation?
Vegetative propagation does not involve the formation of new plants from old
Plants have lost their capacity to produce seeds, reproduce by
Clone is
Clones are individuals obtained through
Which one of the following statements is not correct regarding vegetative propagation?
The most significant feature of vegetative propagation is that
Offspring produced by vegetative propagation are
Which of the following are the characteristics
of vegetative reproduction?
X Involves two individuals
Y Daughter cells are genetically identical to the parent
Z The cell divisions are only mitotic
Which of the following is not a vegetative part of plant?
Read the assertion (A) and reason (R) carefully to mark the correct option out of the options given below:
A. There are some plants which have in their life-cycles neither the process of fertilization nor they have meiosis.
R. In these plants, the vegetative or somatic plant body helps in the propagation of the plant.
Growing two or more crops in definite row patterns is known as
Which of the following is the vegetative part of Jasmine plant?
Asexual reproduction is related to
Flowering plants are called as
Why seed dispersal is important?
Seeds tarvel with water is filled with
Which of the following is correct for r-selected spices?
Reproduction in Bryophyllum takes place by
Bryophyllum reproduces vegetatively through _________.
Apart from bryophyllum which plant shows vegetative propagation by leaves?
The bryophyllum bud produces new plants in the presence of
In which one pair, both the plants can be vegetatively propagated by leaf pieces?
Epiphyllous buds take part in
Identify the plants that reproduce by leaves?
Why is vegetative propagation possible by leaves?
Reduced stem bears leaves called