Kabuli chickpea as a winter-sown crop in northern Syria: moisture relations and crop productivity
- 1 June 1983
- journal article
- research article
- Published by Cambridge University Press (CUP) in The Journal of Agricultural Science
- Vol. 100 (3), 667-680
- https://doi.org/10.1017/s0021859600035449
Abstract
In the Mediterranean region, chickpeas are traditionally spring-sown since humid winter conditions encourage the development of Aschochyta blight which often causes complete crop failure. Lines resistant to this blight have been selected at the International Centre for Agricultural Research in Dry Areas (ICARDA) and thus winter planting has become feasible. The best selection, ILC 482, was sown in both winter and spring at three locations in northern Syria with contrasting precipitation patterns. Crop growth and soil moisture analyses were undertaken on all treatments, and relevant meteorological data were collected at each location. At all locations maximum greenarea and dry-matter production of the winter-sown crop was nearly double that of the spring sowing. Large differences were also observed between sites, with green-area and dry-matter production decreasing with precipitation. Depth of profile recharge, amount of extractable moisture and crop evapotranspiration also decreased with precipitation, but only small differences in these moisture variables were observed between winter and spring sowing. Duration of green-area production, as determined by the onset of rapid leaf senescence, was closely related to the fraction of extractable moisture in the soil profile, rapid senescence occurring in all treatments when extractable moisture fell below 40% of its maximum value. Differences in the maximum rates of green-area production are discussed both in relation to the depth of profile recharge, hence the depth of rooting and moisture extraction and to the ambient evaporative demand. The differences observed in green-area and dry-matter production was clearly reflected in final seed yield. The components of yield, number of pods, percentage of empty pods and seed size are related to the variations in moisture stress experienced by the crop.This publication has 6 references indexed in Scilit:
- Water dynamics in the soil-plant-atmosphere systemPlant and Soil, 1981
- Water Use by Wheat and Plant Indicators of Available Soil Water1Agronomy Journal, 1980
- The growth and development of cowpeas (Vigna unguiculata)under tropical field conditions: 2. Accumulation and partition of dry weightThe Journal of Agricultural Science, 1979
- The growth and development of cowpeas (Vigna unguiculata) under tropical field conditions: 1. Leaf areaThe Journal of Agricultural Science, 1979
- Climate and the efficiency of crop production in BritainPhilosophical Transactions of the Royal Society of London. B, Biological Sciences, 1977
- Dryland Evaporative Flux in a Subhumid Climate: III. Soil Water Influence1Agronomy Journal, 1972