Soil temperature, Biology

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.
Posted Date: 1/17/2013 1:50:53 AM | Location : United States







Related Discussions:- Soil temperature, Assignment Help, Ask Question on Soil temperature, Get Answer, Expert's Help, Soil temperature Discussions

Write discussion on Soil temperature
Your posts are moderated
Related Questions
advantage sand disadvantages of protozoa

function of epithelial tissue

How do chloroplasts multiply? Like mitochondria chloroplasts have their own DNA, RNA and ribosomes and they self-replicate through binary division.

The DNA replication is a biological procedure which happens in all living organisms and copies their DNA; it is the basis for biological inheritance. The process will starts when o

Q. Texture of food product? Texture may be accessed through touch or mouth feels. When the food is placed in the mouth, the surface of the tongue and other sensitive skin react

Q. Cardiac Catheterization of mitral stenosis? Cardiac catheterization is rarely needed to diagnose mitral stenosis. An end diastolic gradient more than 5 mm Hg. across mitral

Q. What are the hormones secreted by the neurohypophysis? What are their respective functions? The neurohypophysis secretes the antidiuretic hormone (ADH) and oxytocin. Oxytoci

Question 1 How would you perform prothrombin time (PT) test? What are the precautions to be taken while performing the test to avoid errors? List various factors that affect the a

Q. What event marks the beginning of the menstrual cycle? What is the blood concentration of FSH, LH, estrogen and progesterone in this phase of the cycle? By convention the me

Q. What are the dietary guidelines for gastritis? Energy: Give adequate calories through frequent feedings or else proteins would be utilized for energy of repair work. P