Abstract
The Mediterranean region's agriculture is predicted to be severely impacted negatively by climate change. In the primary production region of southern Tunisia (34°43’N, 10°41’E) in olive orchard submitted to different treatments: Rain-fed, drip irrigation with saline water (FI) : EC = 7.5 dS/m at 100% of crop evapotranspiration (ETc), alternate irrigation (PRD) with saline water at 50% of ETc and switched every 30 days, regular deficit irrigation (RDI) with saline water at 50% of ETc, drip irrigation with tap water (TW) : EC=2.46 dS/m at 100% of crop evapotranspiration (ETc), with predicted temperature increases, the effects of climate change and salinity on the floral performance of olive trees were assessed from 2015 to 2017 and the vegetative growth and yield were evaluated over the period. As results, while conserving water in comparison to FI and TW, PRD produced high values for internodes length (1.68 cm) in 2016 and an annual shoot elongation (2.5 cm) in 2015. When comparing flowering (RF) and fruit-setting (RS) rates, olive trees under PRD outperformed those under RDI and FI with (RF=67.52% and RS=7.81%) in 2015. For olive trees exposed to RDI, PRD, and FI, the fruits per unit length were statistically similar in 2015. The use of the PRD technique (50% ETc) yielded good results with an average of 2.96(kg/m3) in our study both quantitatively and qualitatively.
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Claims 6
Claim · model-written summary
PRD produced high olive internode length of 1.68 cm in 2016 while saving water.
Not reportedTaxonComparator
Verbatim
e0“PRD produced high values for internodes length (1.68 cm) in 2016”
Claim · model-written summary
PRD produced annual shoot elongation of 2.5 cm in 2015.
Not reportedTaxonComparator
Verbatim
e0“PRD produced high values for internodes length (1.68 cm) in 2016 and an annual shoot elongation (2.5 cm) in 2015”
Claim · model-written summary
PRD outperformed RDI and FI in flowering rate, reaching 67.52% in 2015.
- Taxon
- olive trees
Olea europaeae0 - Treatment
- PRDe0
- Outcome
- RFe0
- Direction
- outperformede0
- Value
- 67.52%e0
- Comparator
- RDI and FIe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“olive trees under PRD outperformed those under RDI and FI with (RF=67.52% and RS=7.81%) in 2015”
Claim · model-written summary
PRD outperformed RDI and FI in fruit-setting rate, reaching 7.81% in 2015.
- Taxon
- olive treesOlea europaeae0
- Treatment
- PRDe0
- Outcome
- RSe0
- Direction
- outperformede0
- Value
- 7.81%e0
- Comparator
- RDI and FIe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“olive trees under PRD outperformed those under RDI and FI with (RF=67.52% and RS=7.81%) in 2015”
Claim · model-written summary
Fruit counts per unit length were statistically similar among RDI, PRD and FI in 2015.
- Taxon
- olive treesOlea europaeae0
- Treatment
- RDI, PRD, and FIe0
- Outcome
- fruits per unit lengthe0
- Direction
- similare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For olive trees exposed to RDI, PRD, and FI, the fruits per unit length were statistically similar in 2015”
Claim · model-written summary
PRD yielded water productivity averaging 2.96 kg/m3.
Not reportedTaxonComparator
Verbatim
e0“The use of the PRD technique (50% ETc) yielded good results with an average of 2.96(kg/m3)”
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