Which would result a farmer in producing more food at a lower cost?

Wheat resistant to weed killer lets a farmer apply weed killer to control weeds without damaging the crop. With fewer weeds competing for water, nutrients, and sunlight, the farmer can produce more wheat and spend less on manual weed removal. Sweeter pears and vitamin-enriched oil change food qualities, while rice limited to warm climates does not necessarily increase yield or lower costs.

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