CONSUMPTIVE WATER USE FOR CUCUMBER IN GREEN HOUSE IN WEST IRAQ

Mohammed, I. A.; Al-Hadeethi, I. K. H.; M. Alabdaly, M. M.

doi:10.36531/ijds.2019.172619

	CONSUMPTIVE WATER USE FOR CUCUMBER IN GREEN HOUSE IN WEST IRAQ
IRAQI JOURNAL OF DESERT STUDIES
Article 9, Volume 9, Issue 2, 2019, Pages 81-91 PDF (1.14 M)
DOI: 10.36531/ijds.2019.172619
Authors
I. A. Mohammed; I. K. H. Al-Hadeethi; M. M. M. Alabdaly
Abstract
A field experiment was carried out at the College of Agriculture - University of Anbar to study the water consumptive use of cucumber plant for protected cultivation grown under unheated plastic house condition with dimensions 44 m in length and 9 m in width. Three locally produced hybrids were planted in the experiment and compared to a foreign hybrid approved by the Ministry of Agriculture. Irrigation was carried out when 30, 50 and 70% of available water depletion. The results showed that there was an increasing in water consumptive use during spring season reached 429.04,423.20 and 399.60 mm season-1 compared with 352.42, 344.62 and 344.60 mm season-1 for the autumn season for 30, 50 and 70% depletion of available water respectively. The moisture distribution results showed that the highest moisture content was 30% depletion reached 34.3% within the root zone at a depth of 20 cm, which is closest to the field capacity limit while it was 33.8% and 31.8% for the depletion levels 50 and 70% respectively at the same depth. The depletion level of 30% gave the highest yield reached 3.397 and 5.190 kg plant -1 for the autumn and spring seasons in respectively compared to the 70% depletion treatment which gave the lowest yield was 3.061 and 3.857 kg plant -1. Depletion at 30% gave the best values of water use efficiency reached 113.40 and 142.30 kg m-3 for the autumn and spring seasons respectively.
Keywords
Consumptive water use; water use efficiency; Cucumber; Green house

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