Clonal propagation, Biology

Assignment Help:

Clonal Propagation

Most cultivars of ornamental and fruit species and forest trees are highly heterozygous. Consequently, their seed progeny is not true-to-type. To preserve the unique characters of selected cultivars of horticultural plants nurserymen practice vegetative propagation, using stem, leaf or root cuttings or propagules such as tubers, corms, bulbs or bulbils. For plants which do not set seeds, such as edible bananas, grapes, citrus, petunia, rose and chrysanthemum, vegetative propagation is the only means of multiplication. A population of plants derived from a single individual by vegetative propagation is genetically uniform and is called a clone. The conventional methods of clonal propagation are slow and often not applicable. For example, the only in-vivo method for clonal multiplication of cultivated orchids, which are complex hybrids is "back-bulb" propagation. It involves separating the oldest pseudobulbil to force the development of dormant buds.


Related Discussions:- Clonal propagation

Phylogenetic systems of classification, Q. Phylogenetic systems of classifi...

Q. Phylogenetic systems of classification? As already pointed out 'earlier that in Phylogenetic system, the plants are classified according to their evolutionary relationships.

Define the names of some immemorial plants, Define The Names of Some Immemo...

Define The Names of Some Immemorial Plants? From the time immemorial plants have been known by some name, they are common, vernacular or local names given by different persons.

Wetlands - lentic ecosystems, Wetlands - Lentic Ecosystems Wetlands a...

Wetlands - Lentic Ecosystems Wetlands are permanently or periodically water covered areas. They can be defined as submerged or saturated lands either artificially or naturall

Centrifugal pump-type of blood pump, Centrifugal Pump: This is available ...

Centrifugal Pump: This is available for clinical perfusion from 1976 (Bio Medicus Pump). It is disposable, causes less blood trauma and reduces the risk of massive air embolism.

Updating by deletion, Updating by Deletion DELETE FROM ENROLMENT WHERE...

Updating by Deletion DELETE FROM ENROLMENT WHERE StudentId = SID ('S4'); As you can see, this differs from Example by the addition of the noise word FROM. The expression SI

Pre-requisites of counsellor, You have to do counselling of a diabetic pati...

You have to do counselling of a diabetic patient and the family members when you are working in a diabetic clinic or community setting in health center. To be an effective counsell

What is lasting form in gametophyte-pteridophytes-sporophyte, What is the l...

What is the lasting form in the gametophyte, pteridophytes or the sporophyte? How can it be compared to bryophytes? The lasting form in pteridophytes is the diploid (2n) sporop

Poultry and duck diseases-duck plague, Duck plague Duck plague, caused ...

Duck plague Duck plague, caused by a member of Herpesviridae, has world wide distribution and occurs among domestic and wild ducks, geese, swans and waterfowls. Epidemiolo

Male reproductive system - urethera, URETHRA - It is common duct as ...

URETHRA - It is common duct as sperms & urine both pass from it. It receives juices of prostatic gland & cowper's gland. Urethra is 20 cm long, passes through the peni

Explain the sa node cardiac muscle cells, Which of the following is true fo...

Which of the following is true for SA node cardiac muscle cells? A. An increase in the binding of norepinephrine to beta-adrenergic receptors in SA node cells will lead to an i

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd