Which of the following symptoms is typical for crops treated with Nicosulfuron/Rimsulfuron?

Crops treated with Nicosulfuron or Rimsulfuron typically exhibit symptoms such as shortened roots and inhibited growth. These herbicides are categorized as sulfonylureas, which work by inhibiting key enzymes involved in amino acid synthesis, leading to stunted plant growth and development. The reduction in root length and overall growth is due to the disruption of the plant's ability to produce essential proteins, which is critical during the early stages of growth.

The other options describe different types of symptoms associated with various plant stressors or herbicide actions. Chlorosis followed by necrosis is often associated with nutrient deficiencies or other herbicides rather than sulfonylureas specifically. Red veins on leaves may indicate diseases or deficiencies, and seed damage within a rapid timeframe is not characteristic of the mode of action of Nicosulfuron or Rimsulfuron. By understanding the symptoms typical of sulfonylurea herbicide applications, one can better identify the effects of these chemicals on crops.