SEARCH FOR NOTABLE TRAITS IN PAPAYAS FROM COMMERCIAL ORCHARDS FOR LINES CONSERVATION IN MICHOACAN, MEXICO
SEARCH FOR NOTABLE TRAITS IN PAPAYAS FROM COMMERCIAL ORCHARDS FOR LINES CONSERVATION IN MICHOACAN, MEXICO
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DOI: 10.22533/at.ed.9733162305103
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Palavras-chave: Carica papaya, genótipo 'Maradol', hermafrodita, sexagem de plantas
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Keywords: Carica papaya, ‘Maradol’ genotype, hermaphrodite, plant sexing.
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Abstract:
Abstract: Currently there are few varieties
of papaya in Mexico and the dominant
variety is ‘Maradol’, which over time has
been vulnerable to phytosanitary problems.
However, for the development of varieties
and seed production, the control of plant
pollination necessarily intervenes because
it is an open-pollinated species. Therefore,
the development of papaya varieties with
better agronomic traits, where the greatest
number of characteristics are concentrated in
commercial genotypes, is a challenge, which is
why it is necessary to rescue genetic material
adapted to the regions of interest, in order
to have a diverse genetic source. Based on
the above, the objective was to select papaya
plants with outstanding characteristics in
commercial orchards. Through explorations,
hermaphroditic Maradol papaya plants with
outstanding characteristics were identified
and characterized. Flower buds were selected
in the plants and were covered to induce
self-pollination. The formed fruits were
collected and the seeds were obtained. Plant
and fruit morphological variables, health and
germination were recorded. Outstanding
plants were presented in 13 commercial
orchards. The characterization of the progress
in the development of floral bud to fruit was
varied, so the number of fruits formed was
reduced in relation to the initially covered
buds, as well as the number of fruits collected
in relation to the fruits formed was reduced.
The presence of viruses, mites and other
insects was recorded in most of the registered
orchards. It is concluded that papaya selected
based on outstanding characteristics and
adapted to the producing region of Michoacán
Mexico were identified.
- Juan Carlos Álvarez Hernández