What is a characteristic(s) of soybean cyst nematode infection?

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Soybean cyst nematode (SCN) infection is characterized by stunted roots due to the parasitic nature of the nematode. When SCN infects soybean plants, it feeds on the roots, leading to the development of root lesions and the formation of cysts. This feeding disrupts normal root growth and function, resulting in stunted roots.

In contrast, healthy roots would typically indicate a lack of severe nematode infestation. Symptoms occurring uniformly across a field could imply other issues or diseases, but SCN typically causes uneven symptom expression, as the severity can vary based on factors like soil type, moisture, and plant variety. Therefore, the correct characteristic of soybean cyst nematode infection is indeed stunted roots. This reflects the plant's inability to uptake nutrients and water effectively due to the damage inflicted by the nematodes.

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