Describe ecological phytosociological, Biology

Assignment Help:

Q. Describe Ecological phytosociological?

Field studies are desirable for an understanding of the relationship of any group of plants. If it is not possible to study the plants in the field you should grow these plants in one or more test gardens. Seeds and plants for this purpose could be obtained from indigenous source. While making an ecological study in the field record the season of flowering and of fruiting and collect material in all stages of development. Make a note of precise locations of collections, habitat types and of soil characteristics. Make a detailed study of characters often lost in the dried specimens like colouration of foliage and floral parts, smell, presence or absence of latex, corolla ve rnation, corolla colour and anther colour before and after dehiscence. Also, make a note of viscidity of parts especially nectariferous organs. Look for pollinating agencies and record the time of pollination. Texture of foliage and perianth parts is of great importance and also colour of freshly matured fruits. You should remember that root stock characters often provide immense information and should not be overlooked. While making a phytosociological study, determine the natural variation within and between populations. Assign a different collection number to specimens from different colonies within the same general area. If the material is growing in abundance prepare four or five sets of duplicate collections and on completion of the study you can distribute it to important herbaria. You will learn more about herbaria in next section. Mass collection will also provide a means of determining relationships with greater accuracy and whether a variation is one associated with or restricted to colonies, to habitats or to regions. From this information you can determine that a population represents a sub species, variety or forma. Collect those parts that are significant for their characters and also random samples. Collect about 50 samples of a population after proper selection and this will constitute the material for study and permanent herbarium record compiling information on frequency of variation, discontinuity of variation and correlation between variables.


Related Discussions:- Describe ecological phytosociological

What is ecosystem, Question 1 Write a short note on the following         ...

Question 1 Write a short note on the following                       1 Angiosperms                       2 Meristematic tissue Question 2 What is ecosystem? List and explain

What is atrial fibrillation, Q. What is Atrial Fibrillation ? As the le...

Q. What is Atrial Fibrillation ? As the left atrial size increase and atrial wall gets fibrosed, depolarization wave fronts get fragmented and atrial fibrillation sets in. Atri

DNA replication, What is cDNA and what is its function and mechanism of act...

What is cDNA and what is its function and mechanism of action?

Define dietary modifications in the diet of the elderly, Define Dietary mod...

Define Dietary modifications in the diet of the elderly? Loss of teeth due to increased decay of teeth and gums is common in aged person. Fitting dentures may also make chewin

Uses of grafting, Uses of Grafting Grafting helps to preserve and pe...

Uses of Grafting Grafting helps to preserve and perpetuate varieties that cannot reproduce by vegetative method. Grafting changes less useful varieties to more desirable

What is the endosymbiotic hypothesis, Q. What is the endosymbiotic hypothes...

Q. What is the endosymbiotic hypothesis about the origin of mitochondria? And what are the molecular facts that support the hypothesis? And To which other cellular organelles can t

Explain alterations occurring in milk and milk products, Alterations occurr...

Alterations occurring in milk and milk products In the dairy industry, milk is commonly given heat treatment for a wide variety of purposes. Depending on the heating temperatur

Enzyme, What is the name of enzyme in gastric juice?

What is the name of enzyme in gastric juice?

Coelentrates, classification of coelenterats?

classification of coelenterats?

Drawbacks of nutritional status that assessed traditionally, Define drawbac...

Define drawbacks of Nutritional status that assessed traditionally? Nutritional status assessed traditionally with the use of anthropometric, biochemical clinical and dietary a

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