Ornamentals Spanish - UC Postharvest Technology Center

Recommendations for Maintaining Post-Harvest Quality

In the last 20 years, flowers of several commercial hybrids of species of the genus Alstroemeria, also known as Alstroemeria, Peruvian Lily, or Lily of the Incas , have become an important segment of the fresh flower trade. The flowers have a varied range of types and colors. All have a long post-harvest life, typically terminated by falling petals and / or leaf yellowing.

Harvest Indices

For transport to markets distant, the flowers are harvested when the buds are unopened and begin to show color. For local markets, the harvest is delayed until the first 3 flowers have been opened.

The flowers are ripped or cut, depending on the variety. When the starter damages the underground parts of the plant (as in young plants of 'Regina'), the stem should be cut. If the flowers are cut, the remaining stem should be removed later.

Classification and Mooring

There are no official classification standards for Alstroemeria, Of the common characters of absence of damage, stem length, firmness and straightness, it is suggested that the flowers in bundles are uniform. The head of the flower should be symmetrical, and the leaves a bright green color. The minimum acceptable number of inflorescences per stem varies with the cultivar but is typically 7 to 10.

Short-term storage should be at 1-2 ° C (34-36 ° F) in good quality water. For long-term storage, flowers should be cooled, then wrapped in paper and polyethylene and kept at 1-2 ° C for 2 to 3 weeks.

Effects of Ethylene >

Ethylene causes the early fall of petals, and a treatment with STS (described above) is useful for extending the natural life of harvested flowers.

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Not yet determined.

Effect of Controlled Atmospheres (CA)

Our data do not show effects Negative effects of the controlled atmosphere, although the flowers are destroyed under anoxic conditions.

Freezing Damage

Freezing can occur at temperatures below -0.5 ° C (31Â ° F). Symptoms include water infiltration and collapse of leaves and petals.