Horticulture/Corn only a mother could love
Actually, that's not true. I'm a mother and I think it's homely.
Can you tell what went wrong?
That is a pollination issue. I suspect insect may have damaged the silks but do not see any larval damage on the cob. Were there small yellow beetles working in the silks at pollination time?
That is my first thought. drop me a note at email@example.com and I will discuss this in greater detail. I see this all the time in production fields. There is a host of causes, but insects are my first thoughts.