2024-03-29T14:16:41Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/2078502021-12-16T14:27:12Zcom_10261_75com_10261_6com_10261_122col_10261_328col_10261_375
DIGITAL.CSIC
author
Pérez Méndez, Verónica
author
Herrero Romero, María
author
Hormaza Urroz, José Ignacio
funder
Ministerio de Economía y Competitividad (España)
funder
European Commission
funder
Gobierno de Aragón
funder
Cabildo Insular de La Palma
orcid
Hormaza Urroz, José Ignacio [0000-0001-5449-7444]
2020-04-16T10:28:10Z
2020-04-16T10:28:10Z
2019-01
Pérez V, Herrero M, Hormaza JI. Different factors involved in the low fruit set of mango (Mangifera indica). Acta Horticulturae 1231: 43-48 (2019)
0567-7572
http://hdl.handle.net/10261/207850
10.17660/ActaHortic.2019.1231.8
http://dx.doi.org/10.13039/501100000780http://dx.doi.org/10.13039/501100010067http://dx.doi.org/10.13039/501100005190http://dx.doi.org/10.13039/501100003329
Mango (Mangifera indica) is a tropical fruit tree originated in southeastern Asia, which is cultivated in regions with tropical and subtropical climates worldwide. Mango cultivation has significantly increased in the last decades, often spreading to areas where environmental conditions are not the most favorable for optimal fruit set. In this work, we describe the reproductive biology of mango in the coastal areas of southern Spain, the furthest region from the equator where mango is produced commercially at a significant scale. As in other regions, mango trees produced several inflorescences per tree with hundreds to thousands of male and hermaphrodite flowers, depending on the cultivar, but only a very small percentage of the flowers are able to set fruits due to a massive drop of flowers and fruitlets. Although about half of the flowers in the inflorescence are male flowers and, consequently, contribute to this massive drop, a high proportion of the hermaphrodite flowers were not receptive to pollen germination. In receptive flowers, the characterization of the pollen tube pathway within the pistil showed chalazogamy. A detailed study of the ovules indicates that a high proportion of them showed degenerated embryo sacs, both before and after fertilization. Paternity analysis with molecular markers showed a high proportion of embryos resulting from self-pollination in orchards planted with a single cultivar. However, without pollination restrictions, the offspring shows a higher proportion of genotypes resulting from cross-pollination, suggesting preferential cross-fertilization. The variable response of this parameter, together to the variable proportion of hermaphrodite/male flower ratio, also obtained in response to environmental conditions, suggests a reproductive plasticity in this species.
eng
openAccess
reproductive biology
pollen tube
pollen germination
ovule
paternity
Different factors involved in the low fruit set of mango (Mangifera indica)
artículo
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URL
https://digital.csic.es/bitstream/10261/207850/1/HormazaI_ActaHortic_2019.pdf
File
MD5
60c34be71c995977fd932e4ab5bb3a8f
822783
application/pdf
HormazaI_ActaHortic_2019.pdf