What impact do storage fungi have on corn grains?

Storage fungi have a significant impact on corn grains, particularly when it comes to their infection during improper storage conditions. When corn grains are stored in environments that are too moist or warm, it creates an ideal setting for fungi to thrive. These fungi can invade the kernels, leading to spoilage, loss of quality, and potential mycotoxin production, which poses risks to both animal and human health.

This option accurately captures the mechanism of how these fungi affect the corn. Proper storage techniques, including controlling moisture levels and temperature, are essential to minimize the risk of fungal infection.

The other choices highlight various aspects but do not accurately represent the primary impact storage fungi have on corn grains. For instance, the option regarding development before harvest does not encapsulate the essence of storage fungi. While some fungal issues can arise in the field, storage fungi specifically relate to post-harvest conditions. Therefore, understanding the correct choice emphasizes the importance of proper storage management to preserve the quality of corn grains.