Huge Seed Leaves

I planted ‘green tiger zucchini’ summer squash for the first time this year.  I was surprised to see that they grew huge seed leaves, or cotyledons, that are much larger than those of other squash I’ve grown.  I  measured the leaf on the left as over 3.5 inches (9 cm) long.

cotyledons (seed leaves) of summer squash ‘green tiger zucchini’

The size of squash cotyledons is influenced by how much light they receive during germination; see “Changes in the cotyledons of Cucurbita maxima during germination.

For more about seed leaves, see my post Seed Coats, Seed Leaves, True Leaves, & Mutant Kale.

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About brianbreczinski

work: chemist, NMR manager; hobbies: gardening, reading, photography, electronics, biking, woodworking
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