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)

Reparative regeneration, Reparative Regeneration This type of regener...

Reparative Regeneration This type of regeneration, as the name suggests, involves repair of a wound or replacement of a body part removed intentionally or because of injury.

Explain the staphylococcus - characteristics of bacteria, Explain the Staph...

Explain the Staphylococcus - Characteristics of Bacteria? Staphylococcus - It is gram positive, nonsporulating facultative anaerobic cocci present in grape-like clusters. These

The best describes the acid properties of guanine, Which statement best des...

Which statement best describes the acid/base properties of guanine? -at pH, guanine will be negatively charge -at pH, guanine will be neutral -it will be an effective buff

State the article - one hundred tests, Regarding the article "One Hundred T...

Regarding the article "One Hundred Tests" which of the following is a false statement? A. Genetic tests like the one developed by Counsyl can examine the multilevel genetic net

Cyanotic heart disease, Cyanotic Heart Disease In  this there is a com...

Cyanotic Heart Disease In  this there is a communication between Pulmonary and systemic circulation through which venous blood enters the systemic circulatory system. The infa

What is implant failure, What is Implant Failure The total failure of t...

What is Implant Failure The total failure of the implant to fulfill its purpose which are functional, esthetic and phonetic because of mechanical or biologic reasons.

Explain iron and zinc, Give information as asked about the following minera...

Give information as asked about the following mineral nutrients in plants: a. Iron: i. it is a constituent of-, ii. it's one typical deficiency symptom. b. Zinc:

How are living beings divided into two groups, According to cellular organi...

According to cellular organization how are living beings divided into two groups? Cellular beings are separated into two groups: the prokaryotes, unicellular beings whose sole

What is transgenic animal, Question 1 Write a short note on the following- ...

Question 1 Write a short note on the following- Transfection Synthetic seeds Transgenic crops Agrometerology Question 2 Describe any 5 screening techniques use

Explain the digestive system, Explain the Digestive System ? The diges...

Explain the Digestive System ? The digestive system takes in food and processes it. Digestion is the mechanical and chemical breaking down of food into a form that can be used

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