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The Journey of Corn Pollen

Corn tassels.
Linnaea Mallette

  

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  Hello Gardeners, I’m Amanda McNulty with Clemson Extension and Making It Grow. When you chomp down on an ear of corn, think of the journey that corn pollen goes through. The tassels at the top of a corn stalk contain anthers, the male flower parts. From just one tassel millions of ripe pollen grains are released and the wind moves them through the field, where --- if all goes well -They’ll land on the silks that protrude from the developing ears of corn. Each silk is attached to a one of the immature kernels (actually the ovules or eggs) and the pollen tube nucleus must grow all the way down that long piece of silk to its associated little undeveloped kernel. Once the tube is complete, the generative pollen nucleus fertilizes the egg. If your ear of corn has areas where the kernels didn’t plump up nice and juicy, for some reason those eggs didn’t get fertilized.

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Amanda McNulty is a Clemson University Extension Horticulture agent and the host of South Carolina ETV’s Making It Grow! gardening program. She studied horticulture at Clemson University as a non-traditional student. “I’m so fortunate that my early attempts at getting a degree got side tracked as I’m a lot better at getting dirty in the garden than practicing diplomacy!” McNulty also studied at South Carolina State University and earned a graduate degree in teaching there.