Shared Flashcard Set

Details

Absorption
n/a
9
Agriculture
Undergraduate 4
02/18/2015

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Cards

Term
Mass flow
Definition
How roots absorb herbicide through water movement
Term
Diffusion
Definition
Movement of ions from a high concentration to a low concentration.
Term
Root interception
Definition
Coming in to direct contact with the roots
Term
Adjuvent
Definition
Important to reduce surface tension allowing droplets to spread over leaves and increase herbicide absorption
Term
How leaf cuticle effects absorption
Definition

Related ti herbicide water solubility

-More water soluble=slower movement

-Less water soluble=faster, easier movement

 

Term
How molecule effects absorption
Definition

-"Likes absorb likes"

-More elipophilic, the easier it will pass through cuticle

-"Esters" can penetrate wax easily

Term
Environment effects on absorption
Definition

-As temp goes up, so does fluidity of herbicide

-Warm temps make cuticle softer

Term
Absorption
Definition
Process or action by which one thing takes in another thing
Term
Conditions for herbicide to be effective
Definition

1. Come in contact with plant surface

2.Remain on surface long enough to be absorbed

3.Reach target site within plant in sufficent concentrations

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