Abstract
While discussing the breeding of drought-resistant cereals Robert Gauss (1910) concluded: “Let no one look with indifference upon the possibility here outlined of acclimatizing valuable crop species to arid regions, or underestimate the magnitude of the achievement suggested… So vast an achievement would rank with the discovery of a new continent in its enlargement of the sources of human subsistence…” Since then, little progress has been made toward the development of drought-resistant cultivars, and crop productivity in semi-Arid environments is substantially lower than yields obtained with adequate irrigation. Gauss (1910) suggested that identifying drought-resistant plants will require the trained eye of a botanist, and that descriptions of characteristics that confer drought resistance should be developed. An analysis of these characteristics will be attempted in this chapter. Physiological, morphological, anatomical, and phenological attributes that contribute to crop adaptation in semi-Arid environments will be discussed. Cultivar development by selection for yield and indices of adaptation will be analyzed. The reviews of Arnon (1972, 1975), Begg and Turner (1976), Fischer and Turner (1978), and Turner (1979) provide valuable analyses and data on these subjects.
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Hall, A.E., Foster, K.W., Waines, J.G. (1979). Crop Adaptation to Semi-Arid Environments. In: Hall, A.E., Cannell, G.H., Lawton, H.W. (eds) Agriculture in Semi-Arid Environments. Ecological Studies, vol 34. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-67328-3_6
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