Cultivo de coco 'Anão Verde' irrigado com águas salinas

Marinho, Francisco José Loureiro; Gheyi, Hans Raj; Fernandes, Pedro Dantas; Holanda, José Simplício de; Neto, Miguel Ferreira

doi:10.1590/s0100-204x2006000800010

Cited by 11 publications

(5 citation statements)

References 10 publications

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“…Coconut palms are being planted in increasing numbers in arid and semi-arid zones of the Nordeste despite the inappropriate climate. Marinho et al investigated field irrigation using water at different salinity rates [(0.1; 5.0; 10.0; 15.0) dS·m -1 at 25°C] [69]. These authors demonstrated that, using the green dwarf variety, nuts can be harvested at 7 months if the salinity of the irrigation water is below 10 dS·m -1 .…”

Section: Influence Of Cultivation Practicesmentioning

confidence: 99%

Coconut water uses, composition and properties: a review

Prades¹,

Dornier²,

Diop³

et al. 2012

Fruits

226

112

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-The product. Coconut water (Cocos nucifera L.) is an ancient tropical beverage whose popularity on the international market has been continuously increasing in recent years. Uses. Besides its various traditional uses, this refreshing liquid extracted from the coconut fruit has recently been described as a "sport beverage" and has drawn the attention of manufacturers as a natural functional drink. Composition. Coconut water has a low matter content (2% to 5% wet basis), mainly comprising sugars and minerals. Quality criteria, such as the water per nut ratio, Total Soluble Solids (TSS), total sugar per nut, and [reducing sugars / total sugars] ratio, are good indicators for estimating the suitability of coconut cultivars for the production of coconut water. Regarding these criteria, dwarf varieties are the most suitable cultivars to obtain a tasty product. Properties. The quality of coconut water can not only be attributed to sugars and minerals because it also has a typical flavour and some original properties. Although many authors have cited medicinal uses or growth-promoting activities, only a few publications have clearly identified the components responsible for these properties. Discussion. Results of former and recent investigations are discussed. Finally, suggestions are made for further research to increase our knowledge of this original tropical juice. Résumé -Le produit. L'eau de coco (Cocos nucifera L.) est un ancien breuvage dont la popularité est grandissante sur le marché international des boissons. Usages. Au-delà de ses usages traditionnels, ce liquide rafraîchissant extrait de la noix a été décrit comme une « boisson de réhydratation pour sportif ». Des industriels ont ainsi mis en exergue ses propriétés fonctionnelles naturelles. Composition. L'eau de coco a une faible teneur en matière sèche (2 % à 5 % en base humide), constituée de sucres et minéraux. Des critères comme le poids de l'eau par noix, les solides solubles totaux, la quantité de sucres totaux par noix, le rapport [sucres réducteurs / sucres totaux] sont de bons indicateurs pour sélectionner les cultivars adaptés à la production d'eau de coco. Au regard de ces critères, les variétés naines sont souvent les mieux adaptées à la production de cette boisson. Propriétés. La qualité de l'eau de coco est aussi liée à une flaveur typique et recherchée ainsi qu'à certaines propriétés spéci-fiques. Bien que plusieurs auteurs aient attribué à l'eau de coco des propriétés médicinales et aient prouvé son effet positif sur la croissance des cellules, peu de publications identifient clairement les molécules responsables de ces actions. Discussion. Pour la première fois, les recherches sur l'eau de coco, des plus anciennes au plus récentes, sont synthétisées et conduisent à proposer des pistes pour améliorer notre connaissance de ce jus de fruit tropical atypique.

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Section: Influence Of Cultivation Practicesmentioning

confidence: 99%

Coconut water uses, composition and properties: a review

Prades¹,

Dornier²,

Diop³

et al. 2012

Fruits

226

112

View full text Add to dashboard Cite

show abstract

“…In Brazil (5 • 46 S; 35 • 12 W; alt. 18 m asl), Marinho et al (2006) evaluated the viability of using saline water for irrigation. In a two year study with (initially) three and a half-year-old green dwarf coconut (cv.…”

Section: Drought Mitigationmentioning

confidence: 99%

THE WATER RELATIONS AND IRRIGATION REQUIREMENTS OF COCONUT (Cocos nucifera): A REVIEW

Carr

2011

Ex. Agric.

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SUMMARYThe results of research on the water relations and irrigation needs of coconut are collated and summarized in an attempt to link fundamental studies on crop physiology to drought mitigation and irrigation practices. Background information on the centres of origin and production of coconut and on crop development processes is followed by reviews of plant water relations, crop water use and water productivity, including drought mitigation. The majority of the recent research published in the international literature has been conducted in Brazil, Kerala (South India) and Sri Lanka, and by CIRAD (France) in association with local research organizations in a number of countries, including the Ivory Coast. The unique vegetative structure of the palm (stem and leaves) together with the long interval between flower initiation and the harvesting of the mature fruit (44 months) mean that causal links between environmental factors (especially water) are difficult to establish. The stomata play an important role in controlling water loss, whilst the leaf water potential is a sensitive indicator of plant water status. Both stomatal conductance and leaf water potential are negatively correlated with the saturation deficit of the air. Although roots extend to depths >2 m and laterally >3 m, the density of roots is greatest in the top 0–1.0 m soil, and laterally within 1.0–1.5 m of the trunk. In general, dwarf cultivars are more susceptible to drought than tall ones. Methods of screening for drought tolerance based on physiological traits have been proposed. The best estimates of the actual water use (ETc) of mature palms indicate representative rates of about 3 mm d−1. Reported values for the crop coefficient (Kc) are variable but suggest that 0.7 is a reasonable estimate. Although the sensitivity of coconut to drought is well recognized, there is a limited amount of reliable data on actual yield responses to irrigation although annual yield increases (50%) of 20–40 nuts palm−1 (4–12 kg copra, cultivar dependent) have been reported. These are only realized in the third and subsequent years after the introduction of irrigation applied at a rate equivalent to about 2 mm d−1 (or 100 l palm−1 d−1) at intervals of up to one week. Irrigation increases female flower production and reduces premature nut fall. Basin irrigation, micro-sprinklers and drip irrigation are all suitable methods of applying water. Recommended methods of drought mitigation include the burial of husks in trenches adjacent to the plant, mulching and the application of common salt (chloride ions). An international approach to addressing the need for more information on water productivity is recommended.

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“…Ferreira Neto et al (2002) aplicaram água com salinidade de até 15 dS m -1 e observaram que a CEes ficou acima de 4 dS m -1 , sem, contudo, comprometer a produtividade do coqueiro. Entretanto, Marinho et al (2006) observaram diminuição do peso e do núme-ro de frutos colhidos, quando a condutividade elétrica da água de irrigação foi maior que 5 dS m -1 .…”

Section: Resultsunclassified

“…Teixeira et al (2005b) concluíram que doses superiores a 240 kg ha -1 de N na forma de nitrato de amônio provocaram acidificação do solo, diminuindo a saturação por bases. O comportamento produtivo do coqueiro em resposta à salinidade no solo foi avaliado em pesquisas no Rio Grande do Norte e na Paraíba (Ferreira Neto et al, 2002;Marinho et al, 2006).…”

Section: Introductionunclassified

Influência de nitrogênio e potássio, via fertirrigação, em atributos do solo, níveis críticos foliares e produção do coqueiro-anão

Sobral

Nogueira

2008

Rev. Bras. Ciênc. Solo

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RESUMOO plantio de coqueiro-anão irrigado, com o objetivo de produzir coco para aproveitamento de água, tem se expandido muito no Brasil. As maiores produtividades, obtidas sob irrigação, influenciam nas quantidades de N e de K requeridas pela planta, o que altera as relações entre os seus teores no solo e na planta. Um experimento com plantas de coqueiro-anão, irrigado por microaspersão, foi conduzido em um Argissolo Amarelo da unidade de paisagem dos tabuleiros costeiros no Nordeste do Brasil. (1) Recebido para publicação em agosto de 2006 e aprovado em maio de 2008.

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Cultivo de coco 'Anão Verde' irrigado com águas salinas

Cited by 11 publications

References 10 publications

Coconut water uses, composition and properties: a review

Coconut water uses, composition and properties: a review

THE WATER RELATIONS AND IRRIGATION REQUIREMENTS OF COCONUT (Cocos nucifera): A REVIEW

Influência de nitrogênio e potássio, via fertirrigação, em atributos do solo, níveis críticos foliares e produção do coqueiro-anão

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