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Cornell University

Recent research: Calla Lily Height Control with Media Drenches

Calla lilies (Zantedeschia) have become a popular greenhouse floricultural crop in the United States, and interest continues to increase for both pot and cut flower production.

Callas have long-lasting, elegant flowers and have been a favorite in wedding bouquets. Breeding efforts have led to many new selections with an increased flower color palette, including near-black cultivars, cultivars more suitable for pot plant production, along with cultivars with increased disease resistance. With an increased interest for potted callas, there is a need to evaluate the growth and development of the newer cultivars, in particular, controlling plant height. Aesthetic appeal is extremely important for marketing floriculture crops and can often be the difference between a sale and plants left on the sales bench.

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