|Author:||Nimah, M. N.|
|Book Group Author:||NA|
Open field experiments were carried out for two consecutive years in Lebanon to study the yield of cucumber (Cucumis sativus cv. 'Byblos') under regular deficit irrigation and different polyethylene mulches. Soil moisture content with depth, marketable cucumber yield, water use efficiency, and soil temperature were measured. The irrigation treatments were: during the first year, irrigation to reestablish field capacity when 30% of the readily available water was used (W1), irrigation with 75% of W1 (W2), and irrigation with 50% of W1 (W3); during the second year, the irrigation treatments were applied at 14 (W1), 10 (W2) and 7 (W3) days irrigation intervals; and a control (W0) with no irrigation in both years. The mulching treatments were: no-mulch (control), black and clear polyethylene mulches. The cumulative evapotranspiration was 77% for W2, and 58% for W3 compared to W1; while the yield was 21.2, 28.7, and 29.8 t/ha under W1 treatment; 19.0, 25.3, and 27.5 t/ha for W2; and 15.6, 25.2 and 26.9 t/ha for W3 treatment, for no-mulch, black and clear, respectively, for the first year. During the second year, the cucumber yield was as follows: 46.07, 40.37, and 29.32 t/ha for 7 days interval; 42.89, 34.28, 24.34 t/ha for 10 days interval; and 35.22, 27.85, and 19.97 t/ha for 14 days interval; and 13.18, 12.47, and 4.49 t/ha for no irrigation under clear, black, and no-mulch treatments, respectively. The soil temperature in the root zone was highest, intermediate, and lowest under clear mulch, black mulch, and no mulch, respectively.
|Pages:||189 - 194|
crop yield, cucumbers, evaporation, irrigation, mulches,mulching, plant water relations, polyethylene film, soil temperature,soil water, water deficit, water use efficiency, Lebanon, Cucumissativus, Cucumis, Cucurbitaceae, Violales, dicotyledons, angiosperms,Spermatophyta, plants, eukaryotes, West Asia, Asia, MediterraneanRegion, Middle East, Developing Countries, Threshold Countries,gherkins, mulching materials, soil moisture, watering, HorticulturalCrops (FF003) (New March 2000), Plant Water Relations (FF062), PlantProduction (FF100), Soil Physics (JJ300), Soil Water Management(Irrigation and Drainage) (JJ800) (Revised June 2002) [formerly SoilWater Management], Soil Management (JJ900)