corn with missing rows

Asked August 9, 2015, 6:29 PM EDT

We planted 2 rows of corn a couple weeks apart. The first planting was OK but the second planting had large gaps of undeveloped corn on the ears. We thought this was usually caused by lack of rain but we definitely didn't have a shortage this year.

Harford County Maryland

1 Response

Corn is susceptible to pollination problems. Corn is pollinated by wind and should be planted in blocks for adequate cross-pollination to occur. Poor pollination results in "skips" or missing kernels and poorly filled ears. Drought stress can also affect the ability of the corn plants to pollinate properly. Block plantings of at least three to four short rows will be pollinated more successfully than one or two long rows. Good pollination is essential for full kernel development.
See our Vegetable Profile for growing information http://extension.umd.edu/growit/vegetable-profiles-sweet-corn-0
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