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

Proteins, what is he importance of proteins for living beings

what is he importance of proteins for living beings

Poultry and duck diseases-infectious bursal disease (ibd), Infectious bursa...

Infectious bursal disease (IBD) It is a highly contagious acute disease in young chicken up to 6 weeks of age causing high morbidity and low mortality. Bursa may atrophy at th

Biodiversity and economics, With the survival and well-being of humans bein...

With the survival and well-being of humans beings so heavily dependent on biodiversity, its economic value assumes considerable importance. For instance the economic value of ecosy

Density independent factors, Density Independent Factors Density inde...

Density Independent Factors Density independent factors are the extrinsic factors which tend to regulate the density of a population in ways that are not correlated with its

What is atrial septal defect, What is Atrial Septal Defect ? Fig...

What is Atrial Septal Defect ? Figure: Anatomical location of Am Indication for Surgery :  The presence of an ASD or PAPVC (Partial Anomalous Pulmonary Venous Conn

Explain adsorption - colloidal particle, Adsorption - Colloidal particle ...

Adsorption - Colloidal particle Colloidal particles attract and hold to their surfaces the molecules of various gases, vapors and other matter with which they come into contact

Reagent for estimation of calcium by edta titrimetric method, Define Reagen...

Define Reagents for Estimation of Calcium Using EDTA Titrimetric Method? 1. Buffer solution: Dissolve 16.9 g NH 4 CI in 143 ml NH 4 OH. To this add 50 ml of solution containing

Points, What is the classification of protozoa with examples

What is the classification of protozoa with examples

Explain briefly Creutzfeldt-jakob disease (cjd), Normal 0 false...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

What does the formula dpd = sf - tp mean, What does the formula DPD = SF - ...

What does the formula DPD = SF - TP mean? DPD is the abbreviation of diffusion pressure shortage, SF (suction force) is the vacuolar osmotic pressure and TP is the turgor press

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