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Does alternation increase water productivity when applying partial root-zone drying to tomato?

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paperpeer-review

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Does alternation increase water productivity when applying partial root-zone drying to tomato? / Puertolas, J.; Oteng-Darko, P.; Yeboah, S. et al.
IX International Symposium on Irrigation of Horticultural Crops. ed. / C. Xiloyannis; B. Dichio; A.N. Mininni . International Society for Horticultural Science, 2022. p. 673-680 (ISHS Acta Horticulturae; Vol. 1335).

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paperpeer-review

Harvard

Puertolas, J, Oteng-Darko, P, Yeboah, S, Annor, B, Ennin, SA & Dodd, IC 2022, Does alternation increase water productivity when applying partial root-zone drying to tomato? in C Xiloyannis, B Dichio & AN Mininni (eds), IX International Symposium on Irrigation of Horticultural Crops. ISHS Acta Horticulturae, vol. 1335, International Society for Horticultural Science, pp. 673-680, IX International Symposium on Irrigation of Horticultural Crops, Matera, Italy, 17/06/19. https://doi.org/10.17660/ActaHortic.2022.1335.85

APA

Puertolas, J., Oteng-Darko, P., Yeboah, S., Annor, B., Ennin, S. A., & Dodd, I. C. (2022). Does alternation increase water productivity when applying partial root-zone drying to tomato? In C. Xiloyannis, B. Dichio, & A. N. Mininni (Eds.), IX International Symposium on Irrigation of Horticultural Crops (pp. 673-680). (ISHS Acta Horticulturae; Vol. 1335). International Society for Horticultural Science. https://doi.org/10.17660/ActaHortic.2022.1335.85

Vancouver

Puertolas J, Oteng-Darko P, Yeboah S, Annor B, Ennin SA, Dodd IC. Does alternation increase water productivity when applying partial root-zone drying to tomato? In Xiloyannis C, Dichio B, Mininni AN, editors, IX International Symposium on Irrigation of Horticultural Crops. International Society for Horticultural Science. 2022. p. 673-680. (ISHS Acta Horticulturae). doi: 10.17660/ActaHortic.2022.1335.85

Author

Puertolas, J. ; Oteng-Darko, P. ; Yeboah, S. et al. / Does alternation increase water productivity when applying partial root-zone drying to tomato?. IX International Symposium on Irrigation of Horticultural Crops. editor / C. Xiloyannis ; B. Dichio ; A.N. Mininni . International Society for Horticultural Science, 2022. pp. 673-680 (ISHS Acta Horticulturae).

Bibtex

@inproceedings{1fe254fb81694c2eb5adca35d09692b6,
title = "Does alternation increase water productivity when applying partial root-zone drying to tomato?",
abstract = "In developing countries, horticultural production relies on smallholder farmers who cannot access advanced irrigation technologies. In Ghana, tomato production does not match the increasing demand for this crop, especially during the dry season so there is a need to increase irrigated tomato production. Optimal application of low cost irrigation techniques can increase water productivity and therefore the irrigated acreage. Partial root-zone drying (PRD) is a water-saving irrigation technique that applies sub-optimal irrigation to half of the root-zone, while adequately irrigating the remainder. PRD increased water productivity compared to homogeneous drying in different crops including tomato. Although root-to-shoot signaling studies predict that the drying of the irrigated zones need to be alternated to maintain PRD effects, studies on the effects of alternation are scarce. To investigate the optimal PRD application technique in tomato we carried out a field trial in Kumasi (Ghana) on an improved bush-type cultivar (Petomech) where both alternated and fixed PRD alternation at 50% of ETc (crop evapotranspiration) were compared with full irrigation (100% ETc). Irrigation treatments did not affect fruit yield, increasing water productivity. Plant physiological responses to alternation were also assessed in a controlled environment experiment in Lancaster (UK) on a miniaturised, containerised PRD system (75% of ETc) using the dwarf cultivar Micro-Tom. PRD decreased fruit yield by ca 15% regardless of whether it was alternated or not. Whole-plant gas exchange and stem diameter variations did not differ between alternated or fixed PRD, even under high vapor pressure deficit, either during the drying cycles or upon re-watering. Stem growth was reduced early after applying PRD and was not affected by alternation. Contrary to previous reports, these results suggest that alternation has little impact on tomato yield, and so fixed PRD may be more readily assimilated by smallholder farmers.",
keywords = "gas exchange, deficit irrigation, Solanum lycopersicum, stem diameter variations",
author = "J. Puertolas and P. Oteng-Darko and S. Yeboah and B. Annor and S.A. Ennin and I.C. Dodd",
year = "2022",
month = apr,
day = "30",
doi = "10.17660/ActaHortic.2022.1335.85",
language = "English",
isbn = "9789462613348",
series = "ISHS Acta Horticulturae",
publisher = "International Society for Horticultural Science",
pages = "673--680",
editor = "{ Xiloyannis}, {C. } and B. Dichio and {Mininni }, A.N.",
booktitle = "IX International Symposium on Irrigation of Horticultural Crops",
address = "Belgium",
note = "IX International Symposium on Irrigation of Horticultural Crops ; Conference date: 17-06-2019 Through 20-06-2019",
url = "https://www.ishs.org/symposium/612",

}

RIS

TY - GEN

T1 - Does alternation increase water productivity when applying partial root-zone drying to tomato?

AU - Puertolas, J.

AU - Oteng-Darko, P.

AU - Yeboah, S.

AU - Annor, B.

AU - Ennin, S.A.

AU - Dodd, I.C.

PY - 2022/4/30

Y1 - 2022/4/30

N2 - In developing countries, horticultural production relies on smallholder farmers who cannot access advanced irrigation technologies. In Ghana, tomato production does not match the increasing demand for this crop, especially during the dry season so there is a need to increase irrigated tomato production. Optimal application of low cost irrigation techniques can increase water productivity and therefore the irrigated acreage. Partial root-zone drying (PRD) is a water-saving irrigation technique that applies sub-optimal irrigation to half of the root-zone, while adequately irrigating the remainder. PRD increased water productivity compared to homogeneous drying in different crops including tomato. Although root-to-shoot signaling studies predict that the drying of the irrigated zones need to be alternated to maintain PRD effects, studies on the effects of alternation are scarce. To investigate the optimal PRD application technique in tomato we carried out a field trial in Kumasi (Ghana) on an improved bush-type cultivar (Petomech) where both alternated and fixed PRD alternation at 50% of ETc (crop evapotranspiration) were compared with full irrigation (100% ETc). Irrigation treatments did not affect fruit yield, increasing water productivity. Plant physiological responses to alternation were also assessed in a controlled environment experiment in Lancaster (UK) on a miniaturised, containerised PRD system (75% of ETc) using the dwarf cultivar Micro-Tom. PRD decreased fruit yield by ca 15% regardless of whether it was alternated or not. Whole-plant gas exchange and stem diameter variations did not differ between alternated or fixed PRD, even under high vapor pressure deficit, either during the drying cycles or upon re-watering. Stem growth was reduced early after applying PRD and was not affected by alternation. Contrary to previous reports, these results suggest that alternation has little impact on tomato yield, and so fixed PRD may be more readily assimilated by smallholder farmers.

AB - In developing countries, horticultural production relies on smallholder farmers who cannot access advanced irrigation technologies. In Ghana, tomato production does not match the increasing demand for this crop, especially during the dry season so there is a need to increase irrigated tomato production. Optimal application of low cost irrigation techniques can increase water productivity and therefore the irrigated acreage. Partial root-zone drying (PRD) is a water-saving irrigation technique that applies sub-optimal irrigation to half of the root-zone, while adequately irrigating the remainder. PRD increased water productivity compared to homogeneous drying in different crops including tomato. Although root-to-shoot signaling studies predict that the drying of the irrigated zones need to be alternated to maintain PRD effects, studies on the effects of alternation are scarce. To investigate the optimal PRD application technique in tomato we carried out a field trial in Kumasi (Ghana) on an improved bush-type cultivar (Petomech) where both alternated and fixed PRD alternation at 50% of ETc (crop evapotranspiration) were compared with full irrigation (100% ETc). Irrigation treatments did not affect fruit yield, increasing water productivity. Plant physiological responses to alternation were also assessed in a controlled environment experiment in Lancaster (UK) on a miniaturised, containerised PRD system (75% of ETc) using the dwarf cultivar Micro-Tom. PRD decreased fruit yield by ca 15% regardless of whether it was alternated or not. Whole-plant gas exchange and stem diameter variations did not differ between alternated or fixed PRD, even under high vapor pressure deficit, either during the drying cycles or upon re-watering. Stem growth was reduced early after applying PRD and was not affected by alternation. Contrary to previous reports, these results suggest that alternation has little impact on tomato yield, and so fixed PRD may be more readily assimilated by smallholder farmers.

KW - gas exchange

KW - deficit irrigation

KW - Solanum lycopersicum

KW - stem diameter variations

U2 - 10.17660/ActaHortic.2022.1335.85

DO - 10.17660/ActaHortic.2022.1335.85

M3 - Conference contribution/Paper

SN - 9789462613348

T3 - ISHS Acta Horticulturae

SP - 673

EP - 680

BT - IX International Symposium on Irrigation of Horticultural Crops

A2 - Xiloyannis, C.

A2 - Dichio, B.

A2 - Mininni , A.N.

PB - International Society for Horticultural Science

T2 - IX International Symposium on Irrigation of Horticultural Crops

Y2 - 17 June 2019 through 20 June 2019

ER -