Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Shoot Multiplication -Clonal Propagation
This is the most important step with respect to the rate of propagation and genetic uniformity of the product. The most reliable and, therefore, the most popular method of shoot multiplication is forced proliferation of axillary shoots. For this, cultures are initiated from apical or nodal cuttings carrying one or more vegetative buds. In the presence of a cytokinin alone or in combination with a low concentration of an auxin, such as IAA or NAA, the pre-existing buds grow and produce 4-6 shoots (sometimes up to 30-40 shoots) within 3-4 weeks. By periodic removal of individual shoots and planting them on fresh medium of the original composition, the shoot multiplication cycle can be repeated almost indefinitely, and a stock of large number of shoots built up in a short period of time.
Treatments with PGRs as described above can also help in a rapid buildup of shoots by inducing adventitious buds by the explant directly or after callusing. Somatic embryogenesis, which generally occurs after callusing of the explant, is another method of micro propagation. Somatic embryogenesis is not only fast, but may also allow partial automation of micro propagation and the propagules so produced (somatic embryos) bear both, shoot and root meristems. However, adventitive differentiation of shoots or somatic embryos, especially from callus tissue, has the risk of genetic variability in the progeny. Such variation, that develops in tissue culture called "somaclonal variation" is not desirable for micro propagation but is being exploited as a novel source of useful variations for crop improvement.
What is an example of a hypothesis which may explain why there is not a big representation of the class Reptilia found in polar regions? Beings of the class Reptilia are abunda
Explain about the Oral cavity and alimental-y tract? Various functional changes and decline in secretary function occur in the digestive tract with aging. These include: Or
Define Iron requirements of school children and adolescents? The iron requirements are also computed by factorial method and should therefore add iron requirement of maintenanc
Photosynthesis - Responses of Plants to Stress Photosynthesis is also inhibited due to low water potential in the leaves. The leaf water potential is the sum of turgor pressur
Briefly describe fluid feeders
whats the difference in respiratory system in mammals,reptilia and amphibian?
venn diagram
Gametophytic Incompatibility In GSI systems callose deposition is not evident on the stigma but is very conspicuous in the pollen tube. Sometimes the callose deposition occurs
Q. What is a prion? The prion is an infectious (transmissible) protein able to replicate by transforming other proteins into a copy of the prion. The mechanism of the copying i
Glycogenolysis Unlike glycogenesis, glycogenolysis is the breakdown of glycogen. Glycogen is broken down in the liver and muscle catalysed by the enzyme glycogen phosph
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd