Herbicide resistance builds up in a crop when the same weed control chemistry is used season after season, letting a few naturally tolerant weed plants survive, breed and take over the field. Different crops carry very different numbers of documented resistance cases because of how their herbicide use history differs.
- Rice > wheat > maize > soybean: Places rice above wheat, which does not match the record of wheat carrying the highest case count among these crops.
- Wheat > rice > soybean > maize: Puts maize last, below soybean, which does not match maize's higher case count from long term triazine use.
- Wheat > maize > rice > soybean: Wheat first, reflecting its long history of ALS and ACCase inhibitor resistant grass weeds, then maize from repeated triazine and other herbicide use, then rice, then soybean with the fewest cases. This order matches the documented pattern.
- Rice > maize > wheat > soybean: Wrong because it ranks wheat below both rice and maize.
The sequence that fits the known pattern of reported herbicide resistant weed cases is wheat, maize, rice, then soybean.
Let's summarize:
- Wheat has built up the most herbicide resistant weed cases among these four crops.
- Maize follows wheat, then rice, then soybean, in decreasing order of reported cases.
So the answer is wheat greater than maize greater than rice greater than soybean, option 3.