Non-succulent perennials, Biology

Assignment Help:

Non-succulent perennials

These are actually the true xerophytes or drought resistants, because they possess a number of morphological, anatomical and physiological characteristics which enable them to withstand critical dry conditions. They exhibit rapid root growth and form an extensive root system to tap water from the soil in a most efficient manner. The leaf size is greatly reduced and in many xerophytic grasses, leaves roll on to reduce the leaf surface for restricting loss of water due to transpiration. Some of the examples are Calotropis procera, Acacia nelotica, Saccharurn munja In non-succulent xerophytes, root system is very extensive e.g. Calotropis. Important adaptations to minirnise the loss of water through transpiration are:

  • thick waxy coating on leaves.
  • thick cuticular and epidermal layers.
  • leaves small, sometimes scaly or survive for a short period only.
  • leaves modified into spines or in exueme cases stem devoid of leaves.
  • dying back of leaves is a common phenomenon in many grasses.
  • rolling and folding of leaves as seen in many grasses.

Related Discussions:- Non-succulent perennials

Cori cycle, Cori Cycle Skeletal muscles have some mitochondria, yet are...

Cori Cycle Skeletal muscles have some mitochondria, yet are competent of vigorous activity. as a output, the little stores of oxygen are rapidly depleted, causing the muscle ti

Law of diminishing return, Law of Diminishing Return A German scientis...

Law of Diminishing Return A German scientist Mitscherlich calculated the effect of different quantities of various growth factors on the yield of plants by means of a mathemat

Endomitosis, why and where endomitosis happen.........?

why and where endomitosis happen.........?

What are the chloroplasts, Q What are the chloroplasts? What are the major ...

Q What are the chloroplasts? What are the major functions of chloroplasts? Chloroplasts are organelles present in the cytoplasm of algae and plant cells, like mitochondria, chl

Guanine, Guanine is one of the nitrogenous bases in the nucleic acids, gua...

Guanine is one of the nitrogenous bases in the nucleic acids, guanine is one of the two purine bases.

Explain the amphibian heart and the reptile heart, What is the difference b...

What is the difference between the amphibian heart and the reptile heart? The reptiles have double and incomplete circulation too, three heart chambers (two atria and one ventr

Oil gas, Composition of oil gas is CH 4 = 25-30%; H 2 = 50-55%; CO = 10-1...

Composition of oil gas is CH 4 = 25-30%; H 2 = 50-55%; CO = 10-12%; CO 2 = 3% It calorific value is 4500-5400 kcl/m 3 . It is used as laboratory gas. Oil gas is prepared b

Creating a zoobook, Animal class....phylum arthropoda subphylum arthropoda

Animal class....phylum arthropoda subphylum arthropoda

Tertiary prevention- preventive strategies for food allergy, Define Tertiar...

Define Tertiary Prevention- preventive strategies for food allergy? Tertiary Prevention: Targets the control of factors that cause symptoms. This strategy would be appropriate

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