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Variety traits

Lodging in Rudbeckia hirta (Black-eyed Susan)

Rudbeckia hirta L.

Lodging in Rudbeckia hirta manifests as the bending or breaking of stems, which leads to a loss of ornamental value and a decrease in the quality of floral production.

In the reference 3 varieties crop Black-eyed Susan, where this is mentioned in the description.

The primary causes of lodging in this species are etiolation due to insufficient lighting and excessively rapid tissue growth resulting from excessive nitrogen fertilization. Tall stems with heavy inflorescences become particularly vulnerable to strong winds and precipitation during the peak flowering phase.

This trait is considered strictly negative, as the curvature of stems or soil contamination makes the plants unsuitable for cut flowers. To prevent lodging, it is necessary to maintain optimal planting density, ensure intense lighting, and strictly manage nitrogen nutrition.

General information about the subject — on the page Lodging.

Sources6

Varieties of Black-eyed Susan mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.

RUDBSS851

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Rudbeckia hirta L. · Black-eyed Susan

Nova Perenne B.V.

2 records