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

Explain the potassium conductance, In a neuron at rest, the membrane A....

In a neuron at rest, the membrane A. voltage will be less than zero. B. sodium conductance is greater than the membrane potassium conductance. C. voltage is less than the

filtration, It is the process of separating colloidal and suspended impuri...

It is the process of separating colloidal and suspended impurities from water by passing it through a porous bed made of fine sand and other proper sized granular materials. Filtra

Define about the manganese deficiency, Define about the Manganese Deficienc...

Define about the Manganese Deficiency? Mn deficiency has been observed in many species of animals and symptoms include: impaired growth, skeletal abnormalities, depressed repro

Placement of implant with improper axial angulation, Placement of implant w...

Placement of implant with improper axial angulation Surgical placement of the implant improperly can lead to a prosthetic rehabilitation that compromises esthetics and the dist

What is the autophagic intracellular digestion, Q. What is the autophagic i...

Q. What is the autophagic intracellular digestion and why is this type of intracellular digestion intensified in an organism undergoing starvation? Autophagic intracellular dig

Reed-swamp stage - hydrarch, Reed-Swamp Stage - Hydrarch This stage is...

Reed-Swamp Stage - Hydrarch This stage is also known as amphibious stage, as the plants of the community are rooted but most parts of their shoots remain exposed to air. Speci

Define basic function of secretin in the digestive process, Q. Where is it ...

Q. Where is it produced and what is the function of secretin in the digestive process? Secretin is made in the duodenum the chyme acidity causes the duodenum to release this ho

Causes of diabetic ketoacidosis, Q. Causes of Diabetic Ketoacidosis? Th...

Q. Causes of Diabetic Ketoacidosis? The causes of Diabetic Ketoacidosis (DKA) are the following: - Missing of insulin injection - Infection - Trauma (injury) - Myoc

Manifestations of hypertension, Manifestations of Hypertension • Renal ...

Manifestations of Hypertension • Renal Failure • Left Ventricular Failure • Myocardial Infarction • Cerebral Haemorrhage

Explain procedure for temporary mounts of fungal culture, Explain Procedure...

Explain Procedure for Temporary Mounts of Fungal Culture? (1) Observe mould culture for the colonial appearance and colour. Also observe the underside. (2) Label the clean,

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