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Current IssueEditorial BoardOnline First ArticlesArchive

volume 44 issue 2 (june 2010) : 131 -135

IMPACT OF WHITEWASH COATED POLYETHYLENE FILM COVER ON THE GREENHOUSE

S
S. Jimenez
B
B.M. Plaza
M
M. Perez
M
M.T. Lao
1Dpto. Produccion Vegetal. Escuela Politecnica Superior. Universidad de Almeria. Ctra. Sacramento sin. 04120 Almeria (SPAIN).

  • Submitted|

  • First Online |

  • doi

Cite article:- Jimenez S., Plaza B.M., Perez M., Lao M.T. (2025). IMPACT OF WHITEWASH COATED POLYETHYLENE FILM COVER ON THE GREENHOUSE. Indian Journal of Agricultural Research. 44(2): 131 -135. doi: .

ABSTRACT

Whitewash is a sustainable technique in Mediterranean greenhouses. where high radiation during spring and summer generates microclimate of high temperature and low Vapour Pressure Deficit (VPD). The aim ofthe present research was to study the effect of polyethylene film covering whitewashed and control on global radiation, VPD and air temperature. This study was conducted in a polyethylene multitunnel greenhouse without crop in the University of Almeria (Spain). The covering transmission coefficient in the greenhouse is not constant along the spectrum. Under whitewashed condition, greenhouse presented a reduction of the air temperature and global radiation of 32 and 41 per cent and an increase of 46 per cent in the VPD. Comparing with the external condition, the average reduction of radiation was 54.7 per cent and 29.6 per cent, the average increment ofVPD was -2.63 kPa and -1.42 kPa and the average diminution of temperature was 10.8 °C and 7.4 °C in the control greenhouse and with whitewash, respectively

REFERENCES

  1. Abreu, P.E. and Meneses J.E (2000). Influence of soil covering. plastic ageing and roof whitening on climate and tomato crop response in an unheated plastic Mediterranean greenhouse. Acta Horticulturae (lSHS) ; 534: 343-350. Bailie, A .. C. Kittas and Katsoulas N. (2001). Influence of whitening on greenhouse microclimate and crop energy partitioning. Agricultural and Forest Meteorology; 107(4): 293-306. Chauhan. P.M., Kim W.S. and Lieth J.H. (2003). Combined effect of whitening and ventilation methods on microclimate and transpiration in rose greenhouse. Workshops EM4 Indore Available from:
  2. htip:llwww.fskab.comiannex17lVJorkshops/EM4 %20Indore%202003-03-21-24/Presentations/GH.pdf.
  3. Liu, L.X., Xu S.M.and Woo K.c. (2005) Solar UV-B radiation on growth, photosynthesis and the xanthophyll cycle in tropical acacias and eucalyptus. Environmental and Experimental Botany: 54: 121-130. Lorenzo, P. (1994). Intercepci6n de luz, bioproductividad e intercambio gaseoso durante la ontogenia de un cultivo invemal de Cucumjs satjvus L. en Almeda. Ph D. University of Barcelona (Spain) ; 255 p.
  4. Vol. 44. No.2, 2010
  5. 135
  6. Luo, Stanghellini W. c.. Dai J .. Wang X .. de Zwart H-F. and Bu C. (2005). Greenhouse design and climate management sUItable for subtropical summer conditions In china. Acta Horticulturae (ISHS) : 691 : 829-836. Nederhoff. E. 1998. Humidity in Greenhouses. Part 7: Coping With Low Air Humidity. HortResearch Publication, Commercial Grower 53 (1). Avail from: http://www.hortnet.co.nz/publications/science/n/neder/humid07.htm Rosenberg. N.J., Blaine L.B. and Verma S.B. (1983) Microclimate. The Biological Emllfonment. Wiley-Interscience; 2 edition. 167-189. Sonneveld. PJ.. Swinkels G .. Kempkes F.. Campen J.B. and Bot. G. (2006) Greenhouse with an integrated NIR filter and a solar cooling system. Acta Horticulturae (ISHS) : 719: 123-130. Teitel. M .. Barak M. and Zhao Y. (2006) Ventilation of a greenhouse with continuous roof and side vents. Acta Horticulturae (ISHS) : 719: 41-48. Zhang. Z.B. (2006) Shading net application in protected vegetable production in China. Acta Horticulturae (ISHS) : 719 : 479-482.
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    volume 44 issue 2 (june 2010) : 131 -135

    IMPACT OF WHITEWASH COATED POLYETHYLENE FILM COVER ON THE GREENHOUSE

    S
    S. Jimenez
    B
    B.M. Plaza
    M
    M. Perez
    M
    M.T. Lao
    1Dpto. Produccion Vegetal. Escuela Politecnica Superior. Universidad de Almeria. Ctra. Sacramento sin. 04120 Almeria (SPAIN).

    • Submitted|

    • First Online |

    • doi

    Cite article:- Jimenez S., Plaza B.M., Perez M., Lao M.T. (2025). IMPACT OF WHITEWASH COATED POLYETHYLENE FILM COVER ON THE GREENHOUSE. Indian Journal of Agricultural Research. 44(2): 131 -135. doi: .

    ABSTRACT

    Whitewash is a sustainable technique in Mediterranean greenhouses. where high radiation during spring and summer generates microclimate of high temperature and low Vapour Pressure Deficit (VPD). The aim ofthe present research was to study the effect of polyethylene film covering whitewashed and control on global radiation, VPD and air temperature. This study was conducted in a polyethylene multitunnel greenhouse without crop in the University of Almeria (Spain). The covering transmission coefficient in the greenhouse is not constant along the spectrum. Under whitewashed condition, greenhouse presented a reduction of the air temperature and global radiation of 32 and 41 per cent and an increase of 46 per cent in the VPD. Comparing with the external condition, the average reduction of radiation was 54.7 per cent and 29.6 per cent, the average increment ofVPD was -2.63 kPa and -1.42 kPa and the average diminution of temperature was 10.8 °C and 7.4 °C in the control greenhouse and with whitewash, respectively

    REFERENCES

    1. Abreu, P.E. and Meneses J.E (2000). Influence of soil covering. plastic ageing and roof whitening on climate and tomato crop response in an unheated plastic Mediterranean greenhouse. Acta Horticulturae (lSHS) ; 534: 343-350. Bailie, A .. C. Kittas and Katsoulas N. (2001). Influence of whitening on greenhouse microclimate and crop energy partitioning. Agricultural and Forest Meteorology; 107(4): 293-306. Chauhan. P.M., Kim W.S. and Lieth J.H. (2003). Combined effect of whitening and ventilation methods on microclimate and transpiration in rose greenhouse. Workshops EM4 Indore Available from:
    2. htip:llwww.fskab.comiannex17lVJorkshops/EM4 %20Indore%202003-03-21-24/Presentations/GH.pdf.
    3. Liu, L.X., Xu S.M.and Woo K.c. (2005) Solar UV-B radiation on growth, photosynthesis and the xanthophyll cycle in tropical acacias and eucalyptus. Environmental and Experimental Botany: 54: 121-130. Lorenzo, P. (1994). Intercepci6n de luz, bioproductividad e intercambio gaseoso durante la ontogenia de un cultivo invemal de Cucumjs satjvus L. en Almeda. Ph D. University of Barcelona (Spain) ; 255 p.
    4. Vol. 44. No.2, 2010
    5. 135
    6. Luo, Stanghellini W. c.. Dai J .. Wang X .. de Zwart H-F. and Bu C. (2005). Greenhouse design and climate management sUItable for subtropical summer conditions In china. Acta Horticulturae (ISHS) : 691 : 829-836. Nederhoff. E. 1998. Humidity in Greenhouses. Part 7: Coping With Low Air Humidity. HortResearch Publication, Commercial Grower 53 (1). Avail from: http://www.hortnet.co.nz/publications/science/n/neder/humid07.htm Rosenberg. N.J., Blaine L.B. and Verma S.B. (1983) Microclimate. The Biological Emllfonment. Wiley-Interscience; 2 edition. 167-189. Sonneveld. PJ.. Swinkels G .. Kempkes F.. Campen J.B. and Bot. G. (2006) Greenhouse with an integrated NIR filter and a solar cooling system. Acta Horticulturae (ISHS) : 719: 123-130. Teitel. M .. Barak M. and Zhao Y. (2006) Ventilation of a greenhouse with continuous roof and side vents. Acta Horticulturae (ISHS) : 719: 41-48. Zhang. Z.B. (2006) Shading net application in protected vegetable production in China. Acta Horticulturae (ISHS) : 719 : 479-482.
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