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ATRAZINE - Coggle Diagram
ATRAZINE
Active ingredient
Atrazine
- is a triazine herbicide, and its chemical formula is C8H14ClN5.
Types
Selective
- It is effective against broadleaf weeds and some grasses but is usually safe for crops like corn.
Systemic herbicide
- absorbed by the plant and translocated (moved) throughout the plant’s vascular system.
Mode of action
-
Effect
This prevents the plant from producing ATP and NADPH, essential for energy and growth
mechanism
It binds to the QB site of PSII, blocking electron transfer during photosynthesis.
Foliar
It can also be applied post-emergence (after the weeds have emerged) directly to the leaves, where it is absorbed and translocated throughout the plant to inhibit photosynthesis
Soil application
applied pre-emergence (before weeds and crops emerge) to control weeds by absorbing through the roots
Mode of distribution
Absorption
- absorbed by plants primarily through the roots when applied to soil. It can also be absorbed through the foliage when applied directly to leaves.
Movement within the plant
- Once absorbed, Atrazine is translocated systemically throughout the plant. It moves through the plant's vascular system, particularly in the xylem (water transport system)
- The herbicide affects the photosystem II by binding to the D1 protein, blocking electron flow during photosynthesis
Persistence
Moderate persistance
- it stays active for a moderate amount of time before breaking down
Half-life
- typically ranges from 60 to 200 days.
Uses
- controlling a variety of broadleaf weeds and grasses, especially in pre-emergence and post-emergence applications