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!
Types of Parthenocarpy
Three types of Parthenocarpy are generally recognized:
Genetical Parthenocarpy is observed in many species cultivated for their fruit. It arises due to mutations or hybridization. Generally parthenocarpic varieties have sterile pollen so that the pollination stimulus is available, but fertilization does not take place. As a result, a fruit is produced which has no seeds. The famous navel orange has arisen from a normal seeded Citrus variety through mutation in an axillary bud, which formed a branch bearing seedless fruits. Several cultivated varieties of grapes and cucumber have also resulted from bud mutations.
Environmental Parthenocarpy is the result of some environmental conditions such as frost or low temperature which interferes with the normal reproductive process. In tomato, for instance, cultivation under low temperature and high light intensity can induce Parthenocarpy. Under these conditions pollination is so poor that seeds are not produced but ovary is activated to form the fruit Induced Parthenocarpy involves treatment of the flowers with certain plant growth regulators. Auxins and gibberellins at low concentrations have been successfully utilized for induction of parthenocarpy in a large number of plants which otherwise bear seeded fruits. Seedless guava, tomato, and straw- fruits have been obtained by this method. Parthenocarpy is important in horticulture because seedless fruits are more convenient to consume and are particularly suitable for the industry manufacturing jams, jellies and fruit juices. Gibberellins also cause fruit enlargement (in grapes which are considered commercially beneficial for packaging and marketing, and also cause looseness of bunches).
Use of biotechnology in characterization of animal biodiversity. Genetic uniqueness of populations is measured by the relative genetic distances of such populations from each o
Explain Isoniazid It is the drug of choice for treatment of latent TB infection. It should be given for 9 months in a single daily dose of 300 mg for adults and 10 mg/kg (max 3
Why is sex-linked inheritance an example of nonmendelian inheritance? The Sex-linked inheritance is a kind of nonmendelian inheritance because it opposes Mendel's first law, wh
How did muir's impression of man's relationship with nature differ from Susan Fenimore coopers? And How did Gifford Pinchot view nature?
Horizontal Chart: Horizontal chart which read from left to right are occasionally used. The pyramid lies horizontally instead of standing in the vertical position. The line of
Q. What is dengue? The Dengue, or dengue fever, is an epidemic disease in some countries (for instance, in Brazil), and its most dangerous form is hemorrhagic dengue. It is cau
What is the primary structure of a protein? What is the importance of the primary structure? Ans) The primary protein structure is the linear sequence of amino acids that produc
Diagnostic Procedures Taking Clinical history Urine analysis Blood sample for estimation of blood urea nitrogen Antistrepto lysine (ASO) titer
Q. Energy requirements to get ideal body weight? Calories: The energy requirements of adult patients is governed by their present body weight and the need to maintain a desira
Q. In chemical terms how is the neuronal repolarization achieved? Repolarization is the return of the membrane probable from the action potential (+35 mV) to the resting potent
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: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd