Trickle irrigation: effects on papaya crop

Carvalho, Gian C.; Coelho, E. F.; Silva, Afrânio dos S. A. M. da; Pamponet, A. J. M.

doi:10.1590/s0100-69162014000200005

Cited by 3 publications

(4 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…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).…”

Section: Fig Climate Risk Analysessupporting

confidence: 89%

“…In terms of production value, Papaya occupies the fourth place following orange, bananas and grapes (Carvalho et al, 2014). The exact center of origin is still unknown, but it is considered that Papaia is probably native from Mexico and Central America, being very sensitive to frost and chilling (Morton, 1987).…”

Section: A) Study Areamentioning

confidence: 99%

“…According to Coelho et al (2011), irrigation is especially important during the papaya flowering phase because the water supply allows the complete process of flowering and fruiting, culminating in higher final production. Carvalho et al (2014) discuss that with the advancement of technologies and the increasing demand for water, the search for more efficient irrigation methods has been accentuated. Therefore, drip irrigation, which is a practice of applying water through drops directly to the soil in the root zone, has emerged in the last two decades as a management that consume less resource and provide better results in productivity and quality.…”

Section: Fig Climate Risk Analysesmentioning

confidence: 99%

See 2 more Smart Citations

Software for agriculture climate risk management focused in smallholders

Coltri

Pinto

Medeiros

et al. 2019

Preprint

View full text Add to dashboard Cite

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.

show abstract

Section: Fig Climate Risk Analysessupporting

confidence: 89%

Section: A) Study Areamentioning

confidence: 99%

Section: Fig Climate Risk Analysesmentioning

confidence: 99%

See 1 more Smart Citation

Software for agriculture climate risk management focused in smallholders

Coltri

Pinto

Medeiros

et al. 2019

Preprint

View full text Add to dashboard Cite

show abstract

“…Studies show the efficiency of trickle irrigation systems compared with the other systems, in different crops, without negatively influencing productivity (Andrade et al, 2014;Carvalho et al, 2014;Geisenhoff et al, 2015;Uribe et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

ESTIMATION OF THE KINETIC HEAD COEFFICIENT (k) BASED ON THE GEOMETRIC CHARACTERISTICS OF EMITTER PIPES

et al. 2017

View full text Add to dashboard Cite

ABSTRACT:The objective of this study was to determine the variability of the head loss as a function of the emitter geometry as well as to develop a relation between local head loss caused by the emitter insertion and geometric characteristics of the emitter pipe, using index of obstruction for dripper pipes with non-coaxial emitters. For this, an experimental bench was developed to control the system and obtain the variables pertinent to the study. From the value of the total head loss in the emitter pipe and the value obtained with calculation of the distributed head loss in the pipe, the difference of these values was local head loss caused by the insertion of the emitter. Total head loss in the emitter pipe and local head loss on the emitter presented a potential relation with flow rate. The kinetic head coefficient (k), for each emitter studied, was obtained from the local head loss on the emitter and the kinetic head. A model for estimating the k coefficient based on the obstruction index was then generated.

show abstract

Genome-Wide Analysis of WRKY and NAC Transcription Factors in Carica papaya L. and Their Possible Role in the Loss of Drought Tolerance by Recent Cultivars through the Domestication of Their Wild Ancestors

Arroyo-Álvarez

Chan-León

Girón-Ramírez

et al. 2023

Plants

View full text Add to dashboard Cite

A genome-wide analysis for two families of key transcription factors (TF; WRKY and NAC) involved in drought response revealed 46 WRKY and 66 NAC members of the Carica papaya genome. A phylogenetic analysis grouped the CpWRKY proteins into three groups (I, II a, b, c, d, e and III), while the CpNAC proteins were clustered into 15 groups. The conserved domains, chromosomal localization and promoter cis-acting elements were also analyzed. In addition, from a previous transcriptome study of two contrasting genotypes in response to 14 days of water deficit stress (WDS), we found that 29 of the 46 CpWRKYs genes and 25 of the 66 CpNACs genes were differentially expressed in response to the WDS. In the present paper, the native wild genotype (WG) (collected in its center of origin) consistently showed a higher expression (transcripts per million; TPM and fold change; FC) than the commercial genotype (CG) in almost all the members of the CpWRKY and CpNAC gene families. To corroborate this, we selected CpWRKY50 and CpNAC83.1 for further evaluation by RT-qPCR. Consistently, the WG showed higher relative expression levels (REL) after 14 days of WDS than the CG, in both the leaves and roots. The results suggest that the CpWRKY and CpNAC TF families are important for drought tolerance in this species. The results may also suggest that, during the domestication process, the ability of the native (wild) C. papaya genotypes to respond to drought (including the overexpression of the CpWRKY and CpNAC genes) was somehow reduced in the current commercial genotypes.

show abstract

Trickle irrigation: effects on papaya crop

Cited by 3 publications

References 3 publications

Software for agriculture climate risk management focused in smallholders

Software for agriculture climate risk management focused in smallholders

ESTIMATION OF THE KINETIC HEAD COEFFICIENT (k) BASED ON THE GEOMETRIC CHARACTERISTICS OF EMITTER PIPES

Genome-Wide Analysis of WRKY and NAC Transcription Factors in Carica papaya L. and Their Possible Role in the Loss of Drought Tolerance by Recent Cultivars through the Domestication of Their Wild Ancestors

Contact Info

Product

Resources

About