caa a22 4500 477112323 CHVBK 20180405111612.0 cr unu---uuuuu 170330e19960601xx s 000 0 eng 10.1007/BF02185574 doi (NATIONALLICENCE)springer-10.1007/BF02185574 Rainfed vetch-barley mixed cropping in the Syrian semi-arid conditions [Elektronische Daten] II. Water use efficiency and root distribution [A. Arslan, F. Kurdali] Water consumption and root distribution of vetch (Avena sativa L.) and barley (Hordeum vulgare L.) in a monoculture and a mixed culture were studied at Jillin station in South-west Syria in a semi-arid region under rainfed conditions. The experiment was conducted in two consecutive years during the 1991/92 and 1992/93 seasons, using a factorial complete block design. There were altogether four blocks, one of which was harvested at the physiological maturity while the remaining three blocks were subjected to three successive harvests per season. The soil had a silty clay texture with EC e ranging from 0.3 to 0.6 dS m-1. The moisture content at 15 cm intervals was determined using an "in situ” calibrated neutron scattering probe. The dry weight of the roots was determined three times at 15 cm depth intervals during each of the successive harvests. The dry weights of the roots were in harmony with the harvested above ground dry matter under the different treatments. The WUE of all treatments in the second season were higher than those of the first. Their values ranged from 1.62 to 2.37 times of the first. This is due to the high water content at the beginning of the second season (47.82 cm in 165 cm soil depth) compared to the first (37.32 cm in 165 cm soil depth). Good rainfall distribution during the second growing season might be another factor. Kluwer Academic Publishers, 1996 barley nationallicence mixed cropping nationallicence roots distribution nationallicence soil moisture nationallicence vetch nationallicence water use efficiency nationallicence V P : mono culture stand of vetch nationallicence B p : mono culture stand of barley nationallicence VB m : mixed stand of vetch and barley nationallicence V m : vetch in the mixed stand nationallicence B m : barley in the mixed stand nationallicence H1, H2 and H3 : first, second and third harvest, respectively nationallicence H0 : plant harvested once at physiological maturity nationallicence S1 and S2 : first and second season nationallicence WUE : water use efficiency nationallicence ET : evapotraspiration nationallicence Ksat : saturated hydraulic conductivity nationallicence K : unsaturated hydraulic conductivity nationallicence Arslan A. Department of Radiation Agriculture, Atomic Energy Commission, P.O. Box 6091, Damascus, Syria aut Kurdali F. Department of Radiation Agriculture, Atomic Energy Commission, P.O. Box 6091, Damascus, Syria aut Plant and Soil Springer Netherlands; gopher://gopher.wkap.nl 183/1(1996-06-01), 149-160 0032-079X 183:1<149 1996 183 11104 https://doi.org/10.1007/BF02185574 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02185574 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Arslan A. Department of Radiation Agriculture, Atomic Energy Commission, P.O. Box 6091, Damascus, Syria aut NATIONALLICENCE 700 1- Kurdali F. Department of Radiation Agriculture, Atomic Energy Commission, P.O. Box 6091, Damascus, Syria aut NATIONALLICENCE 773 0- Plant and Soil Springer Netherlands; gopher://gopher.wkap.nl/ 183/1(1996-06-01), 149-160 0032-079X 183:1<149 1996 183 11104 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer