Analysing cape gooseberry fruit (Physalis peruviana L.) development and physiological maturity in the Sumapaz area (Cundinamarca)
The phenological stages of the reproductive phase of the cape gooseberry fruit (Physalis peruviana L.), grown in the Subia area of Cundinamarca (Colombia), were studied for determining harvest indices. The work was carried out in two commercial orchards in the area. The first was located in Subia at 4° 28’ N and 74° 22’ W, 1.900 meters above sea level (masl), 17.5° C average annual temperature, 77% relative humidity and 1.290 mm average annual rainfall. The second orchard was located in San Raimundo at 4° 29’ N and 74° 21’ W, at 2.100 masl, 16° C average annual temperature, 78% relative humidity and 1.300 mm average annual rainfall. Fruit was selected from main and secondary branches, from which fresh weight, dry weight, fruit diameters, percentage of seed germination and fruit and calyx color were determined each five days, beginning at fruit setting (DFS). A sigmoidal growth curve was constructed from fresh weight, dry weight and diameter data; a logistical growth model was adjusted to it for describing fruit growth behaviour. The seeds presented a high percentage of 50-day old fruit germination (greater than 90%). According to the obtained results it was established that the optimal moment for harvesting occurs 50 days past fruit set (DFS), coinciding with yellow-greenish fruit colouring and a green-yellow calyx.
| Main Authors: | , , , , |
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias Agrarias
2003
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| Online Access: | https://revistas.unal.edu.co/index.php/agrocol/article/view/17824 |
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