Permanent wilting percentage (pwp), Biology

Assignment Help:

Permanent Wilting Percentage (PWP)

It is the percentage of moisture in the soil at which a plant wilts and does not recover unless water is added to the soil. PWP for clay is about 26%, for silt 10% and for sand 3-5%. It must be noted that PWP is used to express property of a soil not any feature of the plant. However, the moisture content at which any plant shows permanent wilting need not be the same for all plants even in the same soil. This happens because some plants are prone to wilting at fairly reasonable water content of soil while others wilt only when the moisture content is very much reduced.

The water status of a plant in terms of FC and PWP is significant only if the soil properties are known. This is because the soil determines the availability of water. However, it is desirable as well as easier to express soil water status in terms of water potential so that soils become uniform with respect to water.


Related Discussions:- Permanent wilting percentage (pwp)

What type of athlete, What type of athlete would have a above average react...

What type of athlete would have a above average reaction time please explain.

What are the two reactants, What are the two reactants and the two products...

What are the two reactants and the two products of a dehydration reaction/ what are the two reactants and products of a hydrolysis reaction.

How fats promote absorption of fat soluble vitamins, 1. Fats promote absorp...

1. Fats promote absorption of fat soluble vitamins like vitamin A, D, E and K. Patients of cystic fibrosis often absorb fat poorly and are at-risk for fat-soluble vitamin deficienc

Oil seed meals as source of limiting amino acids, Oil seed meals as source ...

Oil seed meals as source of limiting amino acids Generally ruminants are not perceived to have a requirement for essential amino acids as the rumen microbes can synthesis esse

What is the meaning of term - plasticity, What is the meaning of term - Pla...

What is the meaning of term - Plasticity The notion of brain plasticity has been of interest to researchers and clinicians alike for decades. The outcome of injury is the resul

Determine the number of gametes, An organism has 16 chromosomes in its soma...

An organism has 16 chromosomes in its somatic cells. Determine the number of gametes with different chromosome compositions that it can potentially create. Explain your answer. Ign

Systemic emboli, Osler's nodes are small, tender subcutaneous nodules that ...

Osler's nodes are small, tender subcutaneous nodules that develop in the pulp of the digits or occasionally more proximally in the fingers and persist for hours to several days. Th

Explain lipoprotein excess, Explain Lipoprotein (Lp(a) Excess ? While c...

Explain Lipoprotein (Lp(a) Excess ? While cholesterol and triglycerides are important lipid risk factors, another lipoprotein factor called Lipoprotein (a) is thought to play a

Example of a fixed joint, Give one example in each case of (a) a fixe...

Give one example in each case of (a) a fixed joint, (b) a ball and socket joint, (c) a hinge joint.   (a) The bones of the skull, the junction of pelvic gi

Define beneficial effects of functional foods, Define beneficial effects of...

Define beneficial effects of functional foods? Several beneficial effects of functional foods have been reported, which include effects such as antioxidant, anticarcinogenic, b

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