Abstract
A field experiment was conducted in Mediterranean conditions to evaluate the effects of different irrigation volumes and water quality on yield performance of tomato crop. The tomato crop was irrigated re-establishing 50 (I1), 75 (I2) and 100% (I3) of the crop evapotranspiration (ETc) with two water quality: fresh water with EC 0.9 dS m-1 (FW) and saline water with EC 6 dSm-1 (SW). At harvest, total and marketable yield, weight, number, , total soluble solids (TSS) and dry matter of fruit were calculated, The results showed no statistical differences among the three different irrigation volumes on tomato yield and quality. The salinity treatment did not affect yield, probably because the soil salinity in the root zone on average remained below the threshold of tomato salt tolerance. Instead, salinity improved fruit quality parameters as dry matter and TSS by 13 and 8 %, respectively. After the first field application of saline water, soil saturated extract cations (SSEC), electrical conductivity of soil paste extract (ECe), sodium absorption ratio (SAR) and exchangeable sodium percentage (ESP) cations increased; the largest increase of cations, in particular of Na, occurred in the top layer. At the end of the experiment, the absolute value of SSEC, ECe and SAR, for all the effects studied, were lower than those recorded in 2007. This behavior was suitable to the reduced volumes of treatments administered in 2009 in respect to the 2007. Furthermore, the higher total rainfall recorded in 2009 increased the leaching and downward movement of salts out of the sampling depth.
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Claims 8
Claim · model-written summary
Irrigation volume produced no statistical differences in tomato yield and quality.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- three different irrigation volumese0
- Outcome
- tomato yield and qualitye0
- Direction
- no statistical differencese0
- Comparator
- three different irrigation volumese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato”
e0“no statistical differences among the three different irrigation volumes on tomato yield and quality”
Claim · model-written summary
Salinity treatment did not affect tomato yield.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- salinity treatmente0
- Outcome
- yielde0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato”
e0“The salinity treatment did not affect yield”
Claim · model-written summary
Salinity improved fruit dry matter by 13%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato”
e0“salinity improved fruit quality parameters as dry matter and TSS by 13 and 8 %, respectively”
Claim · model-written summary
Salinity improved fruit TSS by 8%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato”
e0“salinity improved fruit quality parameters as dry matter and TSS by 13 and 8 %, respectively”
Claim · model-written summary
Saline water increased soil SSEC, ECe, SAR and ESP after the first application.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- saline watere0
- Outcome
- soil saturated extract cations (SSEC), electrical conductivity of soil paste extract (ECe), sodium absorption ratio (SAR) and exchangeable sodium percentage (ESP) cationse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato”
e0“After the first field application of saline water, soil saturated extract cations (SSEC), electrical conductivity of soil paste extract (ECe), sodium absorption ratio (SAR) and exchangeable sodium percentage (ESP) cations increased”
Claim · model-written summary
The largest cation increase, especially Na, occurred in the top soil layer.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- increase of cations, in particular of Nae0
- Direction
- largest increasee0
Not reportedOrgan / stage
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato”
e0“the largest increase of cations, in particular of Na, occurred in the top layer”
Claim · model-written summary
Final SSEC, ECe and SAR were lower than in 2007.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- absolute value of SSEC, ECe and SARe0
- Direction
- lowere0
- Comparator
- those recorded in 2007e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato”
e0“the absolute value of SSEC, ECe and SAR, for all the effects studied, were lower than those recorded in 2007”
Claim · model-written summary
Higher rainfall in 2009 increased salt leaching and downward movement beyond sampling depth.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- leaching and downward movement of saltse0
- Direction
- increasede0
- Setting
- sampling depthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomato”
e0“the higher total rainfall recorded in 2009 increased the leaching and downward movement of salts out of the sampling depth”
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