Vitality and vigour - qualitative characters, Biology

Assignment Help:

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


Related Discussions:- Vitality and vigour - qualitative characters

Describe polio, In 1954, Public Health Service organized an experiment in t...

In 1954, Public Health Service organized an experiment in that nearly 2 million children in grades 1, 2 and 3 participated. Experiment was to test a vaccine. Name the disease c

Soil temperature, Soil Temperature Soil temperature is known to influe...

Soil Temperature Soil temperature is known to influence water absorption and ultimately transpiration to a considerable extent. In many plants water absorption is reduced shar

Define transport and uptake of zinc by cells, Define Transport and uptake o...

Define Transport and uptake of Zinc by Cells? After absorption, zinc is bound to albumin and transported to the liver. In liver, it is concentrated and then transported to diff

Metastasis - characteristics define cancer, Metastasis - Characteristics De...

Metastasis - Characteristics Define Cancer Metastasis is the capability of a malignant cell to detach itself from a tumor and establish a tumor in another site. This capabilit

What is an argument that shows emergence of photosynthetic, What is an argu...

What is an argument that shows that the emergence of photosynthetic beings was crucial for life to reach the marine surface and later the dry land? The Ultraviolet radiation fr

Define errors of number of sex chromosomes of an individual, What are the m...

What are the main diseases caused by errors of the number of sex chromosomes in the cells of an individual? Diseases caused by the abnormal number of sex chromosomes are called

Invertebrates, 1) What are some characteristics that define the lifestyle o...

1) What are some characteristics that define the lifestyle of a parasitic nematode? 2) What are beneficial nematodes? Discuss their significance

Explain trapezoidal full mucoperiosteal flaps, Explain Trapezoidal Full Muc...

Explain Trapezoidal Full Mucoperiosteal Flaps a) Similar to rectangular flap except: The 2 vertical incisions are at obtuse angle with the Horizontal incision, b) Mostly

Express the genotype and phenotype of the male, 1. In rabbits, black fur is...

1. In rabbits, black fur is dominant to brown, and long hair is dominant to short hair. A male is mated to several brown, short-haired females. These matings result in the followin

Why similarities in body parts often indicate shared, Similarities in body ...

Similarities in body parts often indicate shared ancestry. Which of the following is true? Structures used for different purposes in different groups can be controlled by the same

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