Possible Use of Canopy Temperature In Irrigation Scheduling of Pumpkin Seed Plants

İrik H. A. , Kırnak H., Yılmaz M., Köksal E. S.

International Conference On Agriculture, Forest, Food Sciences and Technologies, Nevşehir, Türkiye, 15 - 17 Mayıs 2017, ss.143

  • Basıldığı Şehir: Nevşehir
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.143


Sustainability in irrigated fields totally depends on irrigation management. Irrigation scheduling is the 

key issue in the effective use of the water resources in the agricultural sector.  In present study, 

possible use of crop water stress index (CWSI) obtained from measured canopy temperature was 

investigated in irrigation scheduling of pumpkin seed plants.  Experiments were carried out in 

randomized blocks design with 3 replications over  the experimental fields of Erciyes University in 

2016. Irrigation scheduling was made up by applying different levels of irrigation water depleted in 

the 60 cm of effective root zone (I100, I80, I60, I40, I20  and I0). The relationship between plant water 

consumption (ETc) and CWSI was identified as ETc=-439.6*CWSI+593.24 with R2

=0.90 while the 

relationship between seed yield and CWSI was identified as Yield =  -99.04*CWSI+131.73 with 


=0.97. It was concluded based on present findings that CWSI could be used in irrigation scheduling 

of pumpkin seed plants and irrigations should be performed when the CWSI value is equal to 0.08.