Cocona (Solanum sessiliflorum Dunal) seed and seedling development based on the landmark phenological scale

Research Articles | Published:

Print ISSN : 0970-4078.
Online ISSN : 2229-4473.
Pub Email:
Doi: 10.1007/s42535-022-00366-7
First Page: 600
Last Page: 606
Views: 470

Keywords: Solanaceae, Amazon, Seedling, Germination, Growth


Cocona is a relevant crop from the Orinoco and Amazon regions. The current work aims to describe seed germination and seedling growth based on the landmark scale. Seeds were manually extracted from fruits, sown in plastic gemination beds and subsequently transplanted to pots. A total of 400 seeds were sown using a commercial potting substrate. Seeds were germinated and grown under greenhouse conditions at 13 °C in Bogotá, Colombia. Seeds and seedlings were photographed at every 10 days. Fresh seeds were sown directly from the fruit. Seed germination started with radicle emergence. Few root hairs were observed on the radicle as it elongated. Seed germination was epigeal. The seedling hypocotyl was unbent and emerged from the soil. A new bud emerged between opposing cotyledons. Cotyledons turned yellow before abscission. Leaf emergence was a continuous process. More than 17 leaves developed on the juvenile plant. The low (13 °C) temperature did not affect germination but significantly reduced juvenile plant growth.

Solanaceae, Amazon, Seedling, Germination, Growth

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Thanks to L. Marien for her help.

Author Information

Ramírez Fernando
Bogotá, Colombia