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!
Androgenic haploids
Androgenic haploids of some species, such as wheat, mustard and tobacco, can also be raised through isolated microspore pollen culture (Pollen cultures). It must be realized that in spite of serious efforts androgenic haploids have not been possible in many other economically important plants. In-vitro gynogenesis is another approach to produce haploids (Yang and Zhou, 1990). In this technique unfertilized ovules are cultured on media which stimulate the egg (parthenogenesis) or any other haploid cell of the embryo sac (apogamy) to undergo embryogenic development without fertilization. In-vitro gynogenesis, first observed in Hordeum vulgare by San Noeum (1967), has now been reported in at least 16 species. This technique of haploid production is especially useful in plants in which the androgenic response is unsatisfactory, a large proportion of pollen plants are non-haploids or albinos, as in many cereals.
What is the Importance of vitamin B 12 Vitamin B 12 deficiency is manifest by the symptoms of pernicious anaemia (Addison-Biermer's disease). An irreversible atrophy of the
Bone grafting issues Planning of the case is very critical. Any bone defect in the aesthetic zone should be evaluated prior to implant placement in order to obtain a prosthetic
Autumn (fall) overturn In autumn or early winter the air temperature falls, resulting in the cooling of the surface waters. When the surface water cools to 4°C it becomes dens
The Term "Green House" effect was first introduced by j. Fourier in 1827. The green house effects are the rise in temperature of earth because certain gases in the atmosphere (CO2,
DIFFERENCE S BETWEEN HYPOTHESIS AND THEORY - 1. Hypothesis It is a reasoned or educated guess about a 1.
prove oxygen is produced during photosynthesis in the presence of light
Nervous System of Echinoderms Previous to studying the nervous system of echinoderms, you have to bear in mind the peculiar organization of these animals. Here as well, the ne
Pancreas Insulin (β cells) Promotes glucose entry in many cells, and in this way controls carbohydrate metabolism. Glucagon (α cells) Increases synthesis and release of
Describe how many bones are there in human foot The human foot is a great mechanical marvel. It has 26 bones, 29 joints, and 42, various ligaments, a sensitive and protective s
Explain the Generalities? A binary system has two components; C equals 2, and the number of degrees of freedom is F = 4 - P. There must be at least one phase, so the maximum po
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