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Agricultural Business Management: Antidotes in Crop Protection

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Agricultural Business Management: Antidotes in Crop Protection

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Questions and Answers

What is the reason why equal amounts of herbicides are absorbed by plants, but translocated at different rates?

Selective susceptibility of plants to herbicides

Differential deactivation of herbicide by plants

Better mobility of herbicides in plants (correct)

Translocation of herbicide from roots to shoots

Why is Convolvulus arvensis selective to diphenamid?

Because it fails to translocate diphenamid away from its roots

Because it rapidly translocates the herbicide from roots to shoots (correct)

Because it deactivates the herbicide through metabolism

Because it is susceptible to phytotoxic action of diphenamid

What is the site of phytotoxic action of diphenamid?

Stems

Shoots

Roots (correct)

Leaves

Why is Avena sativa susceptible to diphenamid?

Because it fails to translocate diphenamid away from its roots Signup and view all the answers

What is the primary function of differential rates of deactivation of herbicide by plants?

Herbicide selectivity in target and non-target plants Signup and view all the answers

What are the possible processes of deactivation of herbicides by plants?

Metabolism, reverse metabolism, or conjugation Signup and view all the answers

What is the primary purpose of using antidotes in crop cultivation?

To offer greater insurance/reliance against crop damage Signup and view all the answers

What is a limitation of using antidotes in crop cultivation?

They increase the toxicity load to the environment Signup and view all the answers

What is the advantage of using granular formulations of herbicides?

They provide selective absorption of the toxicant by weeds Signup and view all the answers

Why do granules of herbicides filter through crop foliage?

To prevent absorption of the herbicide by the crop Signup and view all the answers

What is a desirable characteristic of herbicides embodied in granules?

Low leachability in soils Signup and view all the answers

What happens to the herbicide released from granules in the soil?

It is absorbed by the germinating weeds Signup and view all the answers