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Influence of Regulated Drip Irrigation on Productivity and Physicochemical Traits of Tomato ‘Tofane’ under Hot Desert Climate

Chenafi Azzeddine
Chenafi Azzeddine
, 
Bachir Bey Mostapha
Bachir Bey Mostapha
 e 
Chennafi Houria
Chennafi Houria
   | 06 mar 2020
Journal of Horticultural Research's Cover Image
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Pubblicato online: 06 mar 2020
Pagine: 93 - 100
Ricevuto: 01 gen 2019
Accettato: 01 gen 2020
DOI: https://doi.org/10.2478/johr-2020-0001
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© 2020 Chenafi Azzeddine et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fig. 1

Seasonal course of daily pluviometry () and the daily plant evapotranspiration (•) during the growth period in 2012 (A) and 2013 (B)
Seasonal course of daily pluviometry () and the daily plant evapotranspiration (•) during the growth period in 2012 (A) and 2013 (B)

Fig. 2

Soil water potential in 2012 at 0.3 m (A) and 0.6 m (B), and in 2013 at 0.3 m (C) and 0.6 m (D) in relation to different irrigation strategies: T1 – comfort irrigation (•); T2 – comfort irrigation in TGP I, II and RDI during TGP III (Δ). Each point corresponds to the median of three measurements.
Soil water potential in 2012 at 0.3 m (A) and 0.6 m (B), and in 2013 at 0.3 m (C) and 0.6 m (D) in relation to different irrigation strategies: T1 – comfort irrigation (•); T2 – comfort irrigation in TGP I, II and RDI during TGP III (Δ). Each point corresponds to the median of three measurements.

Amounts of water (mm) applied in 2012 and 2013 for comfort (T1) and deficit irrigation (T2) during the fruit growth periods

TGPDays after transplantingTreatment
20122013
T1T2T1T2
I1–45242.7242.7266.7266.7
II46–90169.8169.8193.2193.2
III90–150187.5125.0218.8140.6
I, II, III1–150600.0537.5678.6600.5
Reduction of water use−10.5%−11.5%

Tomato fruit weight, yield, diameter, fruit moisture, amount of water and water productivity in relation to comfort irrigation and deficit irrigation in 2012 and 2013

TreatmentsSingle fruit weight (g)Yield (kg per plant)Water applied (mm)
201220132012201320122013
T1244.3 ± 36.5a231.7 ± 21.3a10.5 ± 0.9a11.4 ± 0.7a600678.6
T2195.9 ± 7.9a186.3 ± 09.8a09.4 ± 1.3a10.9 ± 1.7a537600.5
% of reduction (−) or increase (+)−19.8−19.6−10.5−4.4−10.5−11.5
TreatmentsFruit diameter (mm)Fruit moisture (%)Water productivity (kg·m−3)
201220132012201320122013
T190.7 ± 9.7a87.5 ± 9.0a92.5 ± 3.1a89.8 ± 3.0a43.942.1
T282.8 ± 5.5a81.3 ± 4.5a76.9 ± 5.9b84.7 ± 4.8b43.845.7
% of reduction (−) or increase (+)−8.7−7.1−16.9−5.70+8.6

Chemical characteristic of tomato fruit in relation to comfort and deficit irrigation in 2012 and 2013

TreatmentsTitratable acidity (g·dm−3)pHTotal soluble solids (°Brix)
201220132012201320122013
T14.2 ± 0.3b5.1 ± 0.1b4.4 ± 0.2a4.1 ± 0.1a5.2 ± 0.9b5.5 ± 1.2b
T24.9 ± 0.2a5.9 ± 0.4a4.2 ± 0.2a4.6 ± 0.3a7.6 ± 0.9a8.2 ± 0.9a
% of reduction (−) or increase (+)+16.7+15.7−4.5+12.2+46.2+49.1

Soil characteristics in 2012 at three different depths

Depth (m)pHGranulometry (%)
claysiltsand
0.00–0.258.410.216.773.1
0.25–0.508.709.118.972,0
0.50–0.758.911.722.865.5
eISSN:
2300-5009
Lingua:
Inglese
Frequenza di pubblicazione:
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Life Sciences, Biotechnology, Plant Science, Ecology, other
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