Soil temperature, Biology

Assignment Help:

Soil Temperature

Soil temperature is known to influence water absorption and ultimately transpiration to a considerable extent. In many plants water absorption is reduced sharply below 10°C. Water absorption also slows down above 25°C. In most instances, temperatures above 40°C in the rhizosphere do not support water absorption and plant may show signs of wilting. The following are the reasons suggested for the reduced absorption of water at low temperature:

  • Decreased root growth,
  • Increased viscosity of water,
  • Increased resistance of water into roots due to decreased permeability (increased hydraulic resistance) of cell membranes and
  • Decreased metabolic activity of root cells.

Related Discussions:- Soil temperature

Determine about the nervous tissues, Determine about the nervous tissues ...

Determine about the nervous tissues The nervous tissues throughout the body, including the visual nervous system, are continuously active. Electrical reactions can only be indu

Explain about phylum annelida, How is the respiratory system of beings of ...

How is the respiratory system of beings of the phylum Annelida characterized? Respiration in annelids can be cutaneous or branchial. Cutaneous respiration happens due to the r

Chondroitin sulphate, CHONDROITI N SULPHATE It is a linear polymer of ...

CHONDROITI N SULPHATE It is a linear polymer of sulphated N-acetylgalactosamine alternating with glucuronic or iduronic acid. The complex also occurs in skin, tendon and ca

What is available soil nutrient, Availability of nutrients in soils  Th...

Availability of nutrients in soils  The productivity of a crop depends largely on the nutrients discussed in the previous section. It is important to find out methods which wil

Agro industrial-sea weeds, Sea weeds Besides lakes, rivers and ponds, ...

Sea weeds Besides lakes, rivers and ponds, India has two thousands kilometers long coastline and wide variety of aquatic plants are abundantly available which are regarded mor

Embryo., Few sentences about embryo

Few sentences about embryo

Zoonoses disease-contagious ecthyma/orf , Contagious ecthyma/ Orf Primaril...

Contagious ecthyma/ Orf Primarily it is a disease of sheep and goats caused by a dermotropic virus - Orf virus - that belongs to the Parapoxvirus genus of the family Poxviridae. T

Explain about the nutrition security, Explain about the Nutrition Security?...

Explain about the Nutrition Security? Food security is a part of the broader concept of nutrition security. A household can be said to be nutritionally secure if it is able to

Phylum, Are protozoan''s diploblastic or triploblastic

Are protozoan''s diploblastic or triploblastic

How does menstrual cycle begin, Does the hypophysis-ovaries endocrine axis ...

Does the hypophysis-ovaries endocrine axis work in the same way during pregnancy as in non-pregnant women? If pregnancy does not occur how does another menstrual cycle begin? T

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