Determinación de índices de cosecha y calidad en kiwi en el sudeste bonaerense (Argentina)
Ripening of kiwifruit (Actinidia celiciosa (A. Chev.) Liang et Ferguson cv. Hayward) (Actinidia deliciosa cv. Hayward) was studied at an orchard located at the south-east of Buenos Aires province in Argentina with the aim of developing ripening and quality indexes and compare them to current s...
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| Publicado en: | Revista de la Facultad de Ciencias Agrarias |
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| Autores principales: | , , |
| Materias: | |
| Acceso en línea: | https://bdigital.uncu.edu.ar/fichas.php?idobjeto=3506 |
| Sumario: | Ripening of kiwifruit (Actinidia celiciosa
(A. Chev.) Liang et Ferguson cv. Hayward)
(Actinidia deliciosa cv. Hayward) was studied
at an orchard located at the south-east of
Buenos Aires province in Argentina with the
aim of developing ripening and quality indexes
and compare them to current standards used
in New Zealand and Chile kiwifruit industries.
Fruit samples were taken weekly, starting from
13 weeks after full bloom, in order to test the
following variables: fresh weight, fruit volume,
black seeds percentage, dry matter content,
titratable acidity, and pH. Soluble solids content
and black seeds percentage thresholds
were attained during week 21 after full bloom.
At this time, flesh firmness was still higher than
the threshold value. Optimum harvest time
took place during the season’s main harvest
time. Results suggest that titratable acidity,
which steadily increased during ripening, may
be useful for indicating ripeness. Dry matter
content may not be useful as a ripening index
for main harvest fruit; because significant increases
in this variable took place very early.
However, dry matter content may still be useful
as a quality index. The relationship between
dry matter content and titratable acidity is
proposed as a quality-harvest index |
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