Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Water status and productivity of `Hass' avocado trees in response to supplemental irrigation during winter

Full text
Author(s):
Cantuarias-Aviles, Tatiana [1] ; da Silva, Simone Rodrigues [1] ; Angolini, Sergio Figueiredo [1] ; Brogio, Bruna do Amaral [1] ; Baptista, Edypol Guilherme [1] ; Micheletti, Ligia Broglio [1]
Total Authors: 6
Affiliation:
[1] Univ Sao Paulo, Escola Super Agr Luiz de Queiroz, Dept Prod Vegetal, Ave Padua Dias 11, BR-13418900 Piracicaba, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Pesquisa Agropecuária Brasileira; v. 54, 2019.
Web of Science Citations: 0
Abstract

The objective of this work was to evaluate the effects of supplemental irrigation, during winter dry season, on the water status and productivity of `Hass' avocado (Persea Americana) trees. The experiment was carried out on a clayey Oxisol from 2014 to 2016, when extreme climatic events were recorded in the state of Sao Paulo, Brazil. The rainfed regime was compared with two irrigation regimes, applied during the whole and half of the irrigation run time defined by the grower, corresponding to 5,091 and 2,545 m(3) ha(-1) water, respectively. The following variables were evaluated: soil water tension; leaf water potential, color, and chlorophyll content; leaf and fruit abscission rates; tree size; and fruit size and yield. Supplemental irrigation applied during half of the run time increased fruit yield by 18.2%. However, irrigation applied during a fixed-time period and the occurrence of unusual rainfall spells caused soil water logging. negatively affecting tree growth and water status. (AU)

FAPESP's process: 14/16400-0 - Reducing winter water deficit in rain-fed avocado orchards for increasing fruit yield and quality
Grantee:Sérgio Figueiredo Angolini
Support Opportunities: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 12/13527-4 - Reducing winter water deficit in rain-fed avocado orchards for increasing fruit yield and quality
Grantee:Tatiana Eugenia Cantuarias Avilés
Support Opportunities: Research Grants - Young Investigators Grants
FAPESP's process: 13/11593-2 - Reducing winter water deficit in rain-fed avocado orchards for increasing fruit yield and quality
Grantee:Tatiana Eugenia Cantuarias Avilés
Support Opportunities: Scholarships in Brazil - Young Researchers