Home > XI International Symposium on Irrigation of Horticultural Crops > Real-time monitoring of trunk water potential: insights for kiwifruit water relations and irrigation management

Articles

Real-time monitoring of trunk water potential: insights for kiwifruit water relations and irrigation management

Article number

1468_31

Pages

237 – 244

Language

English

Abstract

This paper reports on microtensiometers (MTs) installed in a yellow-fleshed kiwifruit orchard to continuously monitor trunk water potential (TWP). Blocks of vines were differentially irrigated and soil moisture and air vapor pressure deficit (VPD) analyzed seeking correlative pattern with TWP. The TWP of vines varied from -1 to -10 bar across the experiment while soil water content declined from 40 to 18% v v^‑1. TWP fluctuated in response to changes in VPD and soil moisture.
Minimum TWP and maximum VPD exhibited a time lag of approximately four hours and displayed distinct hysteretic behavior.
Although MTs easily offer continuous TWP measurements, their response to environment requires further investigation.
Employment of these preliminary results in a precision irrigation context is discussed.

Publication

XI International Symposium on Irrigation of Horticultural Crops

Authors

A.N. Mininni, M. Calabritto, R. Di Biase, R. Sarli, G. Montanaro, B. Dichio

Keywords

microtensiometers, plant water status, precision irrigation, yellow kiwifruit, water use efficiency

Full text

https://doi.org/10.17660/ActaHortic.2026.1468.31

Groups involved

Online Articles (70)

1. Non-conventional water sources for irrigation: understanding and addressing underlying issues of water quality and sustainability

A. Ben-Gal

2. Tree-to-Me: a standardised traceability platform for farm-level visibility with a case study on automated irrigation integration via an API

Y. Cho | A.A. Baniya | K. Murphy | A. Scalisi

3. Focus groups of California nursery managers identified education priorities for irrigators

B.J.L. Pitton | N. Levy

4. Planning for a range of scenarios – how can climate science inform practical adaptation decisions for irrigators?

J.R. Lawson | D. Allingham | B. Ellis | R. Young | J.M. Kelley

5. Effect of pulse surge furrow irrigation and nitrogen fertilization strategies on yield, nutrient uptake, and nitrate leaching in grain maize (Zea mays L.)

A. Antúnez | M. Vidal

6. Projected impacts on irrigation demand of almonds and wine grapes in the Murray Darling Basin: integrating climate change modeling and expert knowledge

D.S. Thomas | P.R. Petrie | P.T. Hayman | A. Hall

7. Innovative spatio-temporal irrigation strategies improve soil-water management in kiwifruit orchards

B. Dichio | M. Calabritto | R. Sarli | A.N. Mininni

8. Water savings and water use efficiency: what is required beyond regulated deficit irrigation

D.S. Intrigliolo

9. Effect of irrigation scheduling on trees performance of two contrasting apple cultivars

M. Mészáros | K. Scháňková | H. Hnátková | J. Náměstek

10. Evaluation of fruit growth using image AI in Satsuma mandarin and its relationship with water stress and fruit sugar content increase

R. Komiya | M. Iwasaki | H. Habaragamuwa | H. Fukamachi

11. Effect of irrigation and vigor zone on tree water status and productivity of three olive (Olea europaea L.) cultivars in a super-high-density orchard

S. Nesi | S. Priori | G. Caruso

12. Regulated deficit irrigation induces reversible physiological stress without compromising vegetative growth in defruited ‘ANABP 01’ apple trees

E.G. Bekele | M. Peavey | N. Valluri | I. Goodwin | A. Scalisi

13. Effect of regulated deficit irrigation and fulvic acid application on apparent soil electrical conductivity and lycopene concentration dynamics in processing tomato

A. Antúnez | C. Vergara | M. Vidal | O. Seguel

14. Physiological and fruit quality responses of apricot to rootstock under irrigated orchard conditions

15. Irrigation regimes and fertilisation effects on amaranth yield and soil health under different agroecosystems in northern Ghana

M. Yamada | E. Salifu | I.M. Alhassan

16. Fluorescence spectroscopy for non-destructive ripening assessment in ‘Rose Bright’ nectarine under deficit irrigation and different rootstocks

G. Milazzo | M.G. OConnell | M. Rehman | R. Lo Bianco | A. Scalisi

17. Plant physiological responses and sensing approaches to implement precision irrigation in Mediterranean fruit orchards

M. Calabritto | A.N. Mininni | K. Steppe | S. Green | B. Dichio

18. Water use efficiency and nutrient loading in an automated subirrigation-drainage system for Florida vegetables

J.M. Oliveira | L. Zotarelli | M.W. Clark

19. Quantification of water use and water productivity of irrigated apple orchards under draped nets in a Mediterranean-type climate

E.B. Lulane | S.J.E. Midgley | T. Volschenk | S. Dzikiti | E. Lötze

20. A critical review of water productivity of irrigated fruit orchards

S.J.E. Midgley | N.J. Taylor | S. Dzikiti | B. Maphosa | G.F. Midgley

21. A feedback and feedforward IDSS based on wireless sensor networks and 5G-satcom applied in precision viticulture

22. Zucchini under pressure: evaluating yield and stress responses of varying cultivars under drought

R. Gierholz | S. Röhlen-Schmittgen | J. Zinkernagel

23. Estimating actual evapotranspiration and crop coefficients in drip-irrigated hazelnut orchards using the METRIC model

S. Ortega-Farías | D. de la Fuente-Sáiz | E. Suarez-Huerta | M.J. Lisperguer | S. Ortega-Salazar

24. Effects of irrigation water withholding on soil-plant water relations of Diospyros kaki ‘Rojo Brillante’ grafted onto D. lotus and D. virginiana

25. Ecophysiology, early season productivity, and water relations of Gala apple trees under netting and evaporative cooling

E.G. Bekele | M. Peavey | N.D. Swarts | A. Scalisi

26. Fruit growth modelling under drought – a mechanistic turgor-based approach for olive (Olea europaea)

S. Verbeke | V. Hernandez-Santana | J. Coussement | A. Diaz-Espejo | K. Steppe

27. Rootstock-dependent physiological and biomass allocation responses of apple trees to water deficit

L. Banda | S. Dzikiti | E. Lötze | S.J.E. Midgley

28. Electrical resistivity tomography as a tool for assessing the spatial variability of soil water content and root water uptake under precision irrigation of kiwifruit orchard

29. Assessing the performance of vegetation index based single crop coefficient modelling approaches to predict tomato crop water use in a semi-arid climate

N. Araya | N.T. Mobe | K. Matsunyane | K. Ayisi | S. Gokool

30. FAO-56 dual crop coefficient approach for assessing water use and basal crop coefficients of kiwifruit orchards

31. Real-time monitoring of trunk water potential: insights for kiwifruit water relations and irrigation management

32. Water footprint of hazelnut orchards under mediterranean climate conditions in Chile

D. de la Fuente-Sáiz | S. Ortega-Farías | E. Suarez-Huerta | M.J. Lisperguer

33. Quantification of vegetable crops evapotranspiration using climate-adjusted FAO-56 crop coefficients in dry regions of South Africa

N. Araya | J. Malaka | S. Gokool

34. Vapour pressure deficit as a means of scheduling irrigation in Vitis vinifera subsp. vinifera ‘Shiraz’

G. Dridan | M. Dalton | M. Intervera

35. Trunk-based responses to prolonged irrigation withholding in pear trees under agrivoltaics

M. Mezzano | I. Goodwin | V. Farina | A. Scalisi

36. Neural network and ensemble approaches for predicting irrigation demand in open field vegetable crops

S. Rubo | M. Suomi | J. Zinkernagel

37. Real-time 2D visualisation of soil water dynamics in the apple rootzone using a multi-sensor capacitance probe array

38. Assessing the impact of drought on crop yields in irrigation districts using remote sensing-based evapotranspiration model and crop water productivity functions

J. Bellvert | M. Pamies-Sans | J. Casadesús | J. Girona

39. Enhancing atmometer-based evapotranspiration monitoring using pressure transducer sensors

L. Bonzi | E. Dichio | F. Hamouda | À. Puig-Sirera | G. Rallo

40. Digitalization and sustainability of irrigation in banana plantations using dendrometers

41. Sap flow low-cost sensors integrated in machine learning and collaborative IoT ecosystems for the smart irrigation of olive: testing and calibration with gravimetric data

T.A. Paço | L. Pian | R. Estevinha | J. Rolim | J. Siqueira

42. Determining the level of water stress of almond trees from weather, irrigation and soil moisture data using machine learning

R.F. Maia | J. Hornbuckle | C. Ballester

43. Sensitivity of fluorescence imaging features and canopy temperature to water stress dynamics in almond orchards

44. Exploring water stress spatial variability in almond using spaceborne hyperspectral solar-induced fluorescence and the photochemical reflectance index

Y. Wang | V. González-Dugo | T. Poblete | P.J. Zarco-Tejada

45. Continuous monitoring of vine water-use and status in an Australian vineyard

46. Relationships among vineyard vigor, water status, and nutritional status in five grapevine cultivars

S. Nesi | C. Bordoni | G. Caruso

47. Preliminary assessment of machine learning models to estimate stomatal conductance using capacity-based leaf sensors

48. Continuous monitoring of plant water status using trunk microtensiometers and dendrometers in almond, nectarine and pear

49. Automated measurements of stem water potential with microtensiometers in coffee plants: validation during two irrigation seasons

T.A. Paço | M. do Céu Silva

50. Recycling contaminated irrigation water after treatment with a two-stage woodchip bioreactor in greenhouse systems

H. Gonzalez | G. Reguera | J.S. Owen | R.T. Fernandez

51. Physics-informed AI control of irrigation: stable drainage EC management strategy for greenhouse tomato production

I. Dao | J. Hollick | C. Kim | C. Kubota | K. Tran

52. Assessment of the effects of modified polyamine metabolism on phenotypic plasticity and structure-function coordination of tomato plants under deficient irrigation

53. Leaf anatomical and physiological variability of tomato genotypes with modified polyamine metabolism and its potential role to water balance and stress resilience

54. Deep percolation estimation for irrigation efficiency assessment in horticultural crops using a parsimonious integrated data-driven layered-bucket framework

55. Fruit tree crop responses to water deficit and decision support systems applications: results from the FruitCREWS network

56. Initial field evaluation of ET-based irrigation scheduling for blueberry in Florida, USA

M.D. Dukes | B. Cardenas | M. Zamora Re | J. Williamson

57. Application of digital twins for upscaling irrigation management from farms to communities of several thousand irrigated plots

J. Casadesús | S. Serrano | J. Oliver-Manera | F. Camps | J. Bellvert

58. Evaluating water deficit in banana crops using leaf area index and UAV-derived canopy cover under different irrigation regimes in the Canary Islands

59. Response of fig trees (Ficus carica L. ‘Calabacita’) to irrigation and water deficit in Extremadura, Spain

A. Vivas | M.H. Prieto | M.J. Moñino

60. Precise monitoring of soil moisture with an AI-based ‘smart’ system for optimizing yield and fruit quality of yellow fleshed kiwifruit in northern Italy

61. Exploring conflicting use levels and perceived benefits of automated irrigation by US nursery operators

62. Are orchardists fine-tuning pear irrigation?

L. McClymont | N. Valluri | N. OHalloran | I. Goodwin

63. The crop forcing technique in Vitis vinifera L. ‘Tempranillo’: carbon dynamics, irrigation strategies and vine performance

J. Oliver-Manera | O. García-Tejera | M. Mata | J. Girona

64. Partial crop removal helps decrease water stress in apple trees

65. Almond fruit load defines irrigation water requirements: plant water relations dependency on fruit load

66. Winter pruning strategies to mitigate the effects of cyclical droughts in nectarine trees

M.H. Prieto | N. Lavado | A. Vivas | M.A. Vargas | M.J. Moñino

67. Water relations of rootstock-scion combinations of stone and pome fruit in narrow orchard systems

H. Singh | A. Scalisi | M.G. OConnell | L. Han | I. Goodwin

68. Influence of air temperature and humidity, wind and tree-line management practices on apple tree water uptake

R.S. Sidhu | D.C. Close | O.S. Todorov | N.D. Swarts

69. Enhancing tomato yield and water efficiency through EF Polymer: field evaluation in semi-arid irrigation management

N.L. Gurjar | R. Panwar

70. Effects of mulching under different irrigation water qualities on mango in a Mediterranean environment