Quality of papaya hybrid grown under different irrigation depths

Silva, Mônica S. da; Melo, Alberto Soares de; Pedroza, Juarez Paz; Gomes, Josivanda Palmeira; Júnior, Sebastião de Oliveira Maia

doi:10.1590/s0100-69162013000400025

Cited by 6 publications

(7 citation statements)

References 13 publications

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“…It is important to emphasize that full irrigation resulted in the highest SS and SS/TA ratio values in both experiments, with a significant effect for SS in the BA experiment. These results contrast with www.nature.com/scientificreports/ those observed by previous study 57 . They obtained the highest contents of soluble solids in 208 'UENF/Caliman 01' papaya fruits when produced under lower irrigation depths (50% and 75% ETo).…”

Section: Effects Of Partial Root-zone Drying (Prd) Technique On Plant Growth Traits Plant Height Wascontrasting

confidence: 99%

Impact of soil water regimes and partial root-zone drying in field-grown papaya in semi-arid conditions

Santos

Coelho

Oliveira

et al. 2021

Sci Rep

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This study aimed to evaluate in the papaya Tainung genotype, the effects of partial root-zone drying (PRD) technique on soil water regimes by using different frequencies of shifting irrigation-side of plant row and the effects of PRD technique on (1) crop agronomic performance, (2) titratable fruit acidity (TA), (3) total soluble solids (TSS), and TSS/TA ratio. Also, we analyze the spatial dynamic of papaya condition using normalized difference vegetation index (NDVI) from different satellite images. The study was conducted in the semi-arid region of Bahia (BA) and Minas Gerais (MG), Brazil. The combination of 100% (Full irrigation—FU), 50%, and 35% in the irrigation depth (WID) and frequencies of shifting plant-row side irrigation of 0 (Fixed Irrigation—FX), 7, 14, and 21 days were applied. Nine treatments were studied in BA and five in MG. The water available in the soil was reduced to 44% for frequencies of shifting plant-row side irrigation of 7 days, 50% for 14 days, and 85% for 21 days, compared to the soil water availability at field capacity. Partial water deficit in the soil through the PRD technique did not significantly reduce the total root length, effective root depth, and root effective horizontal distance of the papaya Tainung genotype. However, PRD treatments showed leaf abscission, which resulted in reduced leaf area and NDVI values, especially in the MG experiment. Papaya yield and fruit quality were not affected. However, except for PRD 21 35%, irrigation water depth reduced to 50 and 35% under PRD increased crop water productivity (CWP) in papaya plants. Thus, the PRD technique may save 35% of WID using the alternation of lateral shift irrigation of crop row every 7 days under water scarcity in semi-arid regions. The NDVI index was important to compare the papaya canopy vigor between the experimental areas studied. We also confirmed the potential of NDVI to monitor the vigor of papaya canopy, since we could notice the sensibility of NDVI to identify water stress in papaya in higher vapor pressure deficit (VPD) conditions occurred in October 2016 and January 2017 in Bom Jesus da Lapa-BA. Therefore, the PRD strategy can be a useful tool to save water in papaya cultivation under semi-arid conditions.

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Section: Effects Of Partial Root-zone Drying (Prd) Technique On Plant Growth Traits Plant Height Wascontrasting

confidence: 99%

Impact of soil water regimes and partial root-zone drying in field-grown papaya in semi-arid conditions

Santos

Coelho

Oliveira

et al. 2021

Sci Rep

View full text Add to dashboard Cite

show abstract

“…However, for all treatments, values of this quality component were satisfactory, being above 10.8 ° Brix, a feature cited by Costa et al (2013) for 'Tainung 1' papaya. As in the present study, Silva et al (2013) found that higher soluble solids contents were obtained in UENF / Caliman 01 papayas when produced under water deficit conditions, i.e., with 50% and 75% ETo.…”

Section: Resultssupporting

confidence: 84%

“…Regarding fruit quality, there are positive responses to water availability, as verified by Silva et al (2013), where the largest cross-sectional and longitudinal diameters of UENF / Caliman 01 hybrid were obtained from irrigation depths of about 108% of ETo, and can be grown in the state of Paraíba hinterland with replacement rate of 100% of ETo, without compromising fruit quality. However, information on the quality of 'Tainung 1' papaya, which is a commercial variety produced under PRD conditions, is scarce.…”

Section: Introductionmentioning

confidence: 85%

Quality of ‘Tainung 1’ papaya produced by partial root zone drying

Castricini¹,

Oliveira²,

Martineli

et al. 2019

Rev. Bras. Frutic.

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Resumo A significant portion of papaya production in the state of Minas Gerais originates from irrigated crops, and irrigation management using the partial root zone drying technique (PRD) is a fundamental alternative to reduce water waste. This study aimed to evaluate the quality of ‘Tainung 1’ papaya produced under PRD in semi-arid conditions of northern state of Minas Gerais. PRD treatments were composed of reduction of the calculated irrigation water (CIW) by 50%, applied on one side of the irrigation line, with alternation of 7, 14 and 21 days or without alternation and full irrigation, applying 100 % CIW in both lateral plant rows. Each experimental plot consisted of ten plants, and from six plants, fruits were harvested for evaluations at harvest point and when ripe. At harvest point, fruits had peel color, titratable acidity, ratio, pulp size and thickness similar to those produced without water deficit. Firmness, soluble solids content, fresh mass and central cavity diameter are distinct as a function of PRD condition. When ripe, only firmness varied according to PRD treatments. The quality of ‘Tainung 1’ papaya produced by partial root zone drying in semi-arid conditions was not compromised.

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“…These results are consistent with Silva et al (2013) and Carvalho et al (2014) that specify the high water demands of the crop. The disequilibrium in water availability in the growth and production phase could affect negatively the papaya final production (Silva et al, 2013). Therefore, the high annual hydric deficiency projected by the scenarios studied here, mainly in the west of the State, will be an important limiting factor to restrict the papaya plantation.…”

Section: Fig Climate Risk Analysessupporting

confidence: 89%

Software for agriculture climate risk management focused in smallholders

Coltri

Pinto

Medeiros

et al. 2019

Preprint

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Taking Persimmon (Diospyros kaki L.), Fig (Ficus carica L.) and Papaya (Carica Papaya L) fruits in São Paulo State, southeast of Brazil, as a case of study, we present here new softwarethat was designed to support smallholders to manage their climate risk on the production area. The main idea of this new software named "Brazilian Mapping for Agricultural Zoning System" (BRAMAZOS) is to transform scientific knowledge into useful information for crop climate risk management, indicating the risk of crop failure and which is the limiting meteorological element for the area unsuitability. The software was developed based on user experience design, focusing on the users facilities with a friendly interface.We simulated these fruits climate risk in current and future scenarios of climate change using ETAHadgem ES Regional Climate Models (RCM), which is a downscaling of the Global Climate Model HadGEM2-ES, based on the IPCC 5th Assessment Report (AR5). We observed changes in the climate risk zone distribution for Persimmon and Papaya cultivation, which could lose almost 30% and 9% of the suitable area respectively. On the other hand, fig did not present significant reduction in the climate risk zone. The results presented here suggested that the temperate fruit examples used here seem to be more sensible to the temperature increase and, the tropical example seems to be more precipitation decrease sensitive. We discussed the significance of BRAMAZOS software as tool to support efficient information to climate risk management, providing agroclimatic information that are efficient to assist decision making, increase food security with the intention to reduce the climate impact on smallholders development and resources management issues.

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Quality of papaya hybrid grown under different irrigation depths

Cited by 6 publications

References 13 publications

Impact of soil water regimes and partial root-zone drying in field-grown papaya in semi-arid conditions

Impact of soil water regimes and partial root-zone drying in field-grown papaya in semi-arid conditions

Quality of ‘Tainung 1’ papaya produced by partial root zone drying

Software for agriculture climate risk management focused in smallholders

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