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Herbicides and Their Selectivity

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2,4-Dichlorophenoxyacetic acid (2,4-D)

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Selective post-emergence herbicide that mimics natural plant hormones (auxins) and disrupts growth processes.

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Glufosinate

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Non-selective contact herbicide that inhibits glutamine synthetase leading to ammonia accumulation and plant death.

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Flumioxazin

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Selective pre-emergence herbicide that leads to the formation of reactive oxygen species, destroying cell membranes.

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Imazethapyr

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Selective post-emergence herbicide that inhibits branched-chain amino acid synthesis, leading to disruption of DNA synthesis.

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Atrazine

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Selective systemic herbicide that inhibits photosynthesis by binding to the Qb protein in the photosystem II.

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Glyphosate

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Non-selective systemic herbicide that inhibits aromatic amino acid biosynthesis (EPSP synthase).

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S-Metolachlor

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Selective pre-emergence herbicide that inhibits the elongation of the plant's shoot and root at the growth meristem.

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Dicamba

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Selective post-emergence herbicide that mimics natural plant hormones (auxins) similar to 2,4-D and affects growth.

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Pendimethalin

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Selective pre-emergence herbicide that inhibits cell division and cell elongation by disrupting microtubule assembly.

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Mesotrione

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Selective systemic herbicide that inhibits 4-hydroxyphenylpyruvate dioxygenase (HPPD), affecting carotenoid biosynthesis.

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