IRRIGATION SCHEDULING FOR WATERMELON WITH CROP WATER STRESS INDEX (CWSI)
Küçük Resim Yok
Tarih
2005
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Univ Zagreb, Fac Agriculture
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This study was designed to evaluate different threshold values of crop water stress index (CWSI) to schedule irrigation for watermelon (Citrullus vulgaris) grown with drip irrigation Irrigations were started when CWSI values reached to 0.2, 0.4, 0.6, 0.8 and 1.0 (non-irrigation). The CWSI values were computed from measurements of canopy temperature, air temperature and vapor pressure deficit. The total irrigations amount of 342, 280, 248 and 193 mm were applied to the 0.2, 0.4, 0.6 and 0.8 CWSI treatments, respectively. The maximum seasonal evapotranspiration (ET) as 412 mm was measured from 0.2 CWSI treatment. Irrigation levels significantly affected fruit yield. Although the highest fruit yield (76.3 t ha(-1)) was obtained from the 0.2 CWSI treatment, the 0.4 and 0.6 of CWSI treatments were statistically in the same letter group with this treatment. Also, maximum water use efficiency (WUE) and irrigation water use efficiency (IWUE) were obtained from 0.6 of CWSI treatment as 22.1 and 13.3 kg m(-3), respectively. Therefore, based on these results, 0.6 of CWSI value should be used for irrigation time of watermelon under Tekirdag, Turkey conditions.
Açıklama
Anahtar Kelimeler
Watermelon, Crop Water Stress Index (CWSI), Irrigation Scheduling, Drip Irrigation, Canopy Temperature, Use Efficiency, Winter-Wheat, Yield, Drip
Kaynak
Journal Of Central European Agriculture
WoS Q Değeri
N/A
Scopus Q Değeri
Cilt
6
Sayı
4
