Sustained deficit irrigation on yield and fruit water quality of dwarf green coconut
ABSTRACT: This study evaluated the effects of sustained deficit irrigation (SDI) on fruit yield and fruit water quality of dwarf green coconut trees. The experiment was carried out in a commercial orchard located in Camocim, Ceará, Brazil. Four years old coconut trees were irrigated during 29 months, using micro-sprinklers, at irrigation depths equivalent to 55%, 77%, 100% and 131% of crop evapotranspiration (ETc). Green coconut fruits were harvested six months after flower aperture and evaluated for number of fruits per plant, volume of coconut water per fruit and total soluble solids of the coconut water. SDI reduced coconut fruit yield, fruit water volume and coconut water yield. Conversely, SDI increased total soluble solids of the coconut water and irrigation water productivity in terms of fruits and coconut water. Deficit irrigation showed no economic advantage over full irrigation due to the small reduction in irrigation costs compared to the substantial reduction in gross revenue.
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Universidade Federal de Santa Maria
2022
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oai:scielo:S0103-847820220011002022022-05-04Sustained deficit irrigation on yield and fruit water quality of dwarf green coconutAraújo,Beatriz de AbreuMiranda,Fábio Rodrigues deBezerra,Marlos AlvesRodrigues,Ana Janaina OliveiraCalvet,Amanda Soraya FreitasSilva,Elizio Sampaio daLima,Gilberto de Castro MendonçaSantos,Maria Mayara Sousa Cocos nucifera L irrigation scheduling coconut water ABSTRACT: This study evaluated the effects of sustained deficit irrigation (SDI) on fruit yield and fruit water quality of dwarf green coconut trees. The experiment was carried out in a commercial orchard located in Camocim, Ceará, Brazil. Four years old coconut trees were irrigated during 29 months, using micro-sprinklers, at irrigation depths equivalent to 55%, 77%, 100% and 131% of crop evapotranspiration (ETc). Green coconut fruits were harvested six months after flower aperture and evaluated for number of fruits per plant, volume of coconut water per fruit and total soluble solids of the coconut water. SDI reduced coconut fruit yield, fruit water volume and coconut water yield. Conversely, SDI increased total soluble solids of the coconut water and irrigation water productivity in terms of fruits and coconut water. Deficit irrigation showed no economic advantage over full irrigation due to the small reduction in irrigation costs compared to the substantial reduction in gross revenue.info:eu-repo/semantics/openAccessUniversidade Federal de Santa MariaCiência Rural v.52 n.11 20222022-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782022001100202en10.1590/0103-8478cr20200674 |
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Araújo,Beatriz de Abreu Miranda,Fábio Rodrigues de Bezerra,Marlos Alves Rodrigues,Ana Janaina Oliveira Calvet,Amanda Soraya Freitas Silva,Elizio Sampaio da Lima,Gilberto de Castro Mendonça Santos,Maria Mayara Sousa |
| spellingShingle |
Araújo,Beatriz de Abreu Miranda,Fábio Rodrigues de Bezerra,Marlos Alves Rodrigues,Ana Janaina Oliveira Calvet,Amanda Soraya Freitas Silva,Elizio Sampaio da Lima,Gilberto de Castro Mendonça Santos,Maria Mayara Sousa Sustained deficit irrigation on yield and fruit water quality of dwarf green coconut |
| author_facet |
Araújo,Beatriz de Abreu Miranda,Fábio Rodrigues de Bezerra,Marlos Alves Rodrigues,Ana Janaina Oliveira Calvet,Amanda Soraya Freitas Silva,Elizio Sampaio da Lima,Gilberto de Castro Mendonça Santos,Maria Mayara Sousa |
| author_sort |
Araújo,Beatriz de Abreu |
| title |
Sustained deficit irrigation on yield and fruit water quality of dwarf green coconut |
| title_short |
Sustained deficit irrigation on yield and fruit water quality of dwarf green coconut |
| title_full |
Sustained deficit irrigation on yield and fruit water quality of dwarf green coconut |
| title_fullStr |
Sustained deficit irrigation on yield and fruit water quality of dwarf green coconut |
| title_full_unstemmed |
Sustained deficit irrigation on yield and fruit water quality of dwarf green coconut |
| title_sort |
sustained deficit irrigation on yield and fruit water quality of dwarf green coconut |
| description |
ABSTRACT: This study evaluated the effects of sustained deficit irrigation (SDI) on fruit yield and fruit water quality of dwarf green coconut trees. The experiment was carried out in a commercial orchard located in Camocim, Ceará, Brazil. Four years old coconut trees were irrigated during 29 months, using micro-sprinklers, at irrigation depths equivalent to 55%, 77%, 100% and 131% of crop evapotranspiration (ETc). Green coconut fruits were harvested six months after flower aperture and evaluated for number of fruits per plant, volume of coconut water per fruit and total soluble solids of the coconut water. SDI reduced coconut fruit yield, fruit water volume and coconut water yield. Conversely, SDI increased total soluble solids of the coconut water and irrigation water productivity in terms of fruits and coconut water. Deficit irrigation showed no economic advantage over full irrigation due to the small reduction in irrigation costs compared to the substantial reduction in gross revenue. |
| publisher |
Universidade Federal de Santa Maria |
| publishDate |
2022 |
| url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782022001100202 |
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