Summary
Susceptibility to drought stress is a key factor in dry land lentil (Lens culinaris Medikus) production in the Mediterranean region of West Asia and North Africa. This study examined the response to drought stress of 121 accessions representing all subspecies of the genus Lens; cultivated, and the wild L. culinaris ssp. orientalis (Boiss.) Ponert, L. culinaris ssp. odemensis (Ladiz.), L. nigricans M.B. Godr. ssp. nigricans Godr. and L. nigricans ssp. ervoides (Brign.) Ladiz. for their potential use in breeding for dry land conditions. Accessions were grown under two moisture regimes (dry land and dry land plus supplemental irrigation) at Breda, Syria during the 1990–91 and 1991–92 seasons. The cultivated lentil had markedly superior seed and straw production than did the wild Lens species. Time to flowering accounted for less than 10% of the variation in yield of wild accessions under rainfed conditions in the two seasons, showing that, in contrast to the cultivated germplasm, drought escape was relatively unimportant in wild lentil. Performance under drought in wild lentil, measured in terms of dry land seed yield or drought susceptibility index (S), was randomly distributed among collection locations with little relation to collection site aridity. Direct selection of wild lentil germplasm for biomass yield under dry conditions is of little value and an evaluation of wild accessions in hybrid combination is needed.
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References
BellF.P., 1969. A new design principle for neutron soil moisture gauges: the ‘Wallingford’ neutron probe. Soil Sci 108: 160–164.
BlumA., G.Gozlan & J.Mayer, 1981. The manifestation of dehydration avoidance in wheat breeding germplasm. Crop Sci 21: 43–47.
Blum, A., A. Ebercon, B. Sinmena, H. Goldenberg, Z.K. Gerechter-Amitai & A. Gram, 1983. Drought resistance reaction of wild emmer wheat (T. dicoccoides) and wild emmer x wheat derivatives. In: Proc 6th Int Wheat Genetics Symposium, Kyoto, Japan. pp. 433–438.
FisherR.A. & R.Maurer, 1978. Drought resistance in spring wheat cultivars. I. Grain yield responses. Aust J Agric Res 29: 897–912.
GomezK.A. & A.A.Gomez, 1984. Statistical Procedures for Agricultural Research. 2nd edition. John Wiley & Sons, New York.
HamdiA., W.Erskine & P.Gates, 1992. Adaptation of lentil seed yield to varying moisture supply. Crop Sci 32: 987–990.
HarrisH.C., W.Goebel & P.J.Cooper, 1987. Crop genotype-environment interaction. In: J.P.Srivastava, E.Porceddu, E.Acevedo & S.Varma (Eds), Drought tolerance in winter cereals. pp. 37–54. John Wiley, UK.
ICARDA (International Center for Agricultural Research in the Dry Areas), 1988. Cereal Improvement Program Annual Report 1987. ICARDA, Aleppo, Syria.
ICARDA (International Center for Agricultural Research in the Dry Areas), 1989. Food Legume Improvement Program Annual Report 1988. ICARDA, Aleppo, Syria.
LadizinskyG., D.Braun, D.Goshen & P.J.Muehlbauer, 1984. The biological species of the genus Lens L. Bot Gaz 145 (2): 235–261.
Ladizinsky, G., B. Pickersgill & K. Yamamoto, 1988. Exploitation of wild relatives of the food legumes. In: R.J. Summerfield (Ed.). World Crops: Cool Season Food Legumes. pp. 967–978. Kluwer Academic Publishers.
PenmanH.L., 1962. Woburn irrigation, 1951–59. II. Results for grass. Neth J Agric Sci 4: 9–29.
SilimS.N., M.C.Saxena & W.Erskine, 1993. Adaptation of lentil to the Mediterranean environment. I. Factors affecting yield under drought conditions. Exp Agric 29: 9–19.
SmithR.C.G. & H.C.Harris, 1981. Environmental resources and constraints to agricultural production in a Mediterranean-type environment. Plant Soil 58: 31–57.