Vitality and vigour - qualitative characters, Biology

Vitality and Vigour - Qualitative Characters

Vitality is related to the condition of a plant and its capacity to complete its life cycle, while vigor refers more specifically to the health or development within a certain stage. We can say that a seedling or a mature plant may be vigorous or it may be feeble or poorly developed. A number of criteria may be used in determining the vigour of plants such as the rate and total amount of growth especially in height; rapidity of growth renewal in spring or following mowing or grazing; area of foliage, colour and turgidity of leaves and stems; degree of damage caused by diseases or insects; time of appearance and number and height of flower stalks; rate of growth and extent of root system, appearance and development of new stems and leaves. For classification of vitality the following groups as given by Daubenmire (1968) are used:

V1 - Plants whose seedlings die

V2 - Seedlings grow, but unable to reproduce

V3 - Reproduce only vegetatively

V4 - Reproduce sexually, but are uncommon

V5 - Reproduce sexually and grow regularly

Posted Date: 1/19/2013 7:29:28 AM | Location : United States







Related Discussions:- Vitality and vigour - qualitative characters, Assignment Help, Ask Question on Vitality and vigour - qualitative characters, Get Answer, Expert's Help, Vitality and vigour - qualitative characters Discussions

Write discussion on Vitality and vigour - qualitative characters
Your posts are moderated
Related Questions
Is the epithelium vascularized? How do nutrients and oxygen reach the epithelium? Why is this feature a significant evolutionary acquisition? Epithelia are not vascularized (ca

Defence mechanisms of the host The healthy animal is protected from pathogenic organisms present in the environment by virtue of the effective immune mechanism present from bi


Q. Acid Hydrolysis of Non-Reducing Sugar? It involves the acid hydrolysis of non-reducing sugars to reducing sugars. It is also known as the process of inversion. Acid hydrolys

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

Examination of the Prosthesis It is important to examine the prosthesis thoroughly.  This involves assessing mobility, checking screws, evaluating attachments and porcelain res

Describe three mechanisms cells use to produce diversity of ion channel structure and function.

Q. What are the four groups of protozoans? The four main groups of protozoans are the mastigophores flagellated, like the trypanosome that causes Chagas' disease, the sarcodine

Q. As per the Watson - Crick Model how many polynucleotide chains does a DNA molecule have? The DNA molecule is formed by two polynucleotide chains bound in antiparallel mode (

Climax Stage - Hydrarch A variety of trees invade the woodland community which soon develop into the climax community. The nature of the climax is dependent upon the climate o