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!
Development of Fruit
Concurrent with the development of the seed(s), the ovary is transformed into a fruit. The fruit protects the seeds and allows their release or germination. In primitive families such as the Magnoliaceae the fruit opens while still on the plant and the seed itself is the unit of dispersal. However, in most of the flowering plants the function of dispersal is at least partly transferred to the fruit.
Figure: Cross-section of the fruit of Pyrus malus (diagrammatic representation).
A true fruit develops from the carpel, specifically from its ovary. However, in many so-called fruits, organs or tissues in addition to those of the ovary participate in protection and dispersal of seed. Examples of accessory tissues or organs contributing to fruit formation are many. In strawberry, Fragaria spp. the floral receptacle extends to form the fleshy edible part of the fruit. In apple, Pyrus malus the floral tube formed by the floral organs and the receptacle around the inferior ovary, together constitute the bulk of the fruit. In both these instances the edible fruit is product of carpellary and accessory tissues. On the other hand, in jackfruit, Artocarpus integrifolia the perianth and in pineapple, Ananas comosus the bracts surrounding the flowers in an inflorescence proliferate to contribute to formation of the fruit. Where organs other than gynoecium participate in forming a fruit, the fruit is termed a false fruit or pseudo carp. The wall of a true fruit is termed pericarp. The mature pericarp is often made up of three distinct regions. In mango, for instance, the outer skin or peel represents the exocarp or epicarp. The fleshy and juicy middle portion is the mesocarp. The inner shell or stone is formed by the endocarp. Fruits of different plants display a rich diversity in size, shape, structure, and hardness. Chemical constituents and dispersal mechanisms. From the morphological standpoint they are classified into a few types based on two criteria. The main criterion is the degree of hardness of the fruit wall or pericarp whether it is dry and hard or soft and fleshy. The second criterion is the ability of the fruit to dehisce or remain intact after ripening.
What is Double Labelled Water (DLW)? Technique DLW is currently considered the most accurate technique for measuring TEE in free- living individuals. It is the method used to m
DISORDERS OF LIVER: In the foregoing sections and sub-sections we have discussed about the common disorders of upper and lower gastrointestinal tract. Now we shall discuss
Acrylamide gel is a polymer gel used for electrophoresis of DNA or protein to measure their sizes (in the daltons for proteins, or in base pairs for DNA). See "Gel electrophoresis
Why do you think it is necessary for physicians to have so many different terms that describe fractures (compound, comminuted, transverse, greenstick, etc.)?
Q. What is the difference between disaccharides and monosaccharides? What are some examples of monosaccharides and of disaccharides that form them? Monosaccharides are simple m
Q. What are the structures that compose the human vision apparatus? The organs of the human visual apparatus are the eyes the optical nerves and the visual areas of the brain l
Types of survivorship curves
Increased CO 2 levels in the atmosphere are correlated with rising global temperatures, leading many scientists to believe that the first phenomenon has caused the second. What wo
Zygotic or Suspensor Polyembryony Cleavage of the apical cells of the globular or filamentous proembryo produced by the zygote may result in two or more embryos in a seed. Th
Q. How does the breathing process correct alkalosis? If the body undergoes alkalosis the respiratory center located in the medulla gets the information and induces the lowering
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