from which country is yield variety of wheat introduced
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Explanation:
Mexico
At first the Rockefeller program in Mexico (headed by Norman Borlaug) developed vari- eties of conventional height, but it soon ran into a yield ceiling because the varieties lodged or fell over when they were heavily fertilized.
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At first the Rockefeller program in Mexico (headed by Norman Borlaug) developed vari- eties of conventional height, but it soon ran into a yield ceiling because the varieties lodged or fell over when they were heavily fertilized.
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