Pollination, Biology

Assignment Help:

Pollination

Pollination refers to the transfer of pollen from dehiscing anthers to the pistil. Unlike animals, plants cannot move to their mates for sexual reproduction. Hence, they need some external device or agency for the transfer of pollen grains from the male parent to the stigma of the female parent. Exceptionally, in Vallisneria, an aquatic plant, complete male flower may be transported to the female flowers, the physical (wind and water) and biological (insects, birds and bats) agencies promote cross-pollination. The dehiscence of anthers and the transfer of pollen are the prime requirements of pollination.


Related Discussions:- Pollination

Define Stolon - Types of hyphae, Define Stolon - Types of Hyphae? Mic...

Define Stolon - Types of Hyphae? Microscopically, hyphae are aseptate and coenocytic. There are 3 kinds of hyphae: (a) Stolon - These grow horizontally on substratum surfa

Reducing cost of accident, Reducing Cost of Accident One clear way to ...

Reducing Cost of Accident One clear way to control the cost of accident would be to follow all the rules of book for safety. All the methods of safety which were described ear

What is lipids, Define lipids 'lipids' defines substances as oils, fats...

Define lipids 'lipids' defines substances as oils, fats and waxes which can be only characterized by a large array of properties.  They are in general: -  coming from plant

Causes of cancer, Causes of Cancer We know earlier that a malignant tu...

Causes of Cancer We know earlier that a malignant tumor is a large aggregation of cancer cells, all of them descended from a single founder cell that was once a normal cell wi

What is the aim of specialised assessment, What is the aim of specialised a...

What is the aim of specialised assessment The aim of specialised assessment is often to identify a syndrome and specify its probable basis in abnormal brain function. The basi

Explain about hypoglycemia, Q. Explain about Hypoglycemia? It is a Gree...

Q. Explain about Hypoglycemia? It is a Greek term: hypo -meaning less; glyc- means sweet; and emia- means "of the blood". It is a condition in which less than normal amount of

Temperature affecting the growth of microorganism, Temperature is one of th...

Temperature is one of the important factors affecting the process of growth in bacteria, as it has a bearing on chemical reactions. The temperature at which the maximum growth occu

Where in leaves the photosynthetic tissue often located, Where in the leave...

Where in the leaves is the photosynthetic tissue often located? The major photosynthetic tissue is the photosynthetic parenchyma (also called as chlorenchyma, do not confuse wi

Types of retaining structure, What are the types of evaluation of lateral e...

What are the types of evaluation of lateral earth forces acting on retaining structures? This section seeks to introduce you to the evaluation of lateral earth forces acting on

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