Flowering and fruit set of 'fortune' hybrid mandarin. Effect of girdling and growth regulators

Duarte, Amílcar; Guardiola, J. L.

Publication

Flowering and fruit set of 'fortune' hybrid mandarin. Effect of girdling and growth regulators

1996Journal article

dc.contributor.author	Duarte, Amílcar
dc.contributor.author	Guardiola, J. L.
dc.date.accessioned	2018-02-19T15:34:59Z
dc.date.available	2018-02-19T15:34:59Z
dc.date.issued	1996
dc.description.abstract	Young orchards of 'Fortune' mandarin usually have a low productivity due to insufficient fruit set. The trees flower profusely, and most of the flowers are borne on leafless inflorescences. Leafy inflorescences are formed in a very low proportion and vegetative sprouts are nearly absent. This sprouting pattern results in a very low leaf/flower ratio. The carbohydrate reserves of the trees are lower than reported for other citrus cultivars, and are depleted shortly after anthesis. Therefore, the growth of the developing fruitlets depends mostly on current photosyntate formation. Most of the ovaries abscise shortly after flowering, having made very little growth. There is a main peak of abscission from early May until the end of June. Late fruitlet abscission lasts until late July. A GA3 spray at flowering retarded the abscission of reproductive organs, but failed to increase the final fruit set. On the other hand girdling did not affect the main wave of drop, but reduced late abscission, which resulted in an increase in set and final yield. Girdling did not increase the level of carbohydrates in the leaves, which indicates that carbohydrate use is determined by availability and fruit set may be limited by photosynthate supply.	pt_PT
dc.description.version	info:eu-repo/semantics/publishedVersion	pt_PT
dc.identifier.other	AUT: ADU00268
dc.identifier.uri	http://hdl.handle.net/10400.1/10377
dc.language.iso	eng	pt_PT
dc.peerreviewed	yes	pt_PT
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/	pt_PT
dc.subject	Girdling	pt_PT
dc.subject	Gibberellic acid	pt_PT
dc.subject	Citrus clementina	pt_PT
dc.title	Flowering and fruit set of 'fortune' hybrid mandarin. Effect of girdling and growth regulators	pt_PT
dc.type	journal article
dspace.entity.type	Publication
oaire.citation.endPage	1071	pt_PT
oaire.citation.startPage	1069	pt_PT
oaire.citation.title	Proceedings of the International Society of Citriculture	pt_PT
oaire.citation.volume	2	pt_PT
person.familyName	Duarte
person.givenName	Amilcar
person.identifier.ciencia-id	081B-5FD8-0E51
person.identifier.orcid	0000-0002-2763-1916
person.identifier.rid	F-1472-2010
person.identifier.scopus-author-id	7102602102
rcaap.rights	openAccess	pt_PT
rcaap.type	article	pt_PT
relation.isAuthorOfPublication	88280e66-023a-49f6-8081-c827a15900ce
relation.isAuthorOfPublication.latestForDiscovery	88280e66-023a-49f6-8081-c827a15900ce