- SD Wullschleger. Biochemical limitations of carbon assimilation in C 3 plants—a retrospective analysis of the
A/Cicurves from 109 species. J Exp Bot 44:907–920, 1993. - B Ehdaie, AE Hall, GD Farquhar, HT Nguyen, JG Waines. Water-use efficiency and carbon isotope discrimi-
nation in wheat. Crop Sci 31:1282–1288, 1991. - JE Pallas Jr, YB Samish. Photosynthetic response of peanut. Crop Sci 14:478–482, 1974.
- JE Pallas Jr. Photosynthetis traits of selected peanut genotypes. Peanut Sci 9:14–17, 1982.
- WD Branch, JE Pallas Jr. Heterosis of apparent photosynthesis rate in Arachis hypogaeaL. Peanut Sci
11:56–57, 1984. - F Mojayad, C Planchon. Stomatal and photosynthetic adjustment to water deficit as the expression of hetero-
sis in sunflower. Crop Sci 34:103–107, 1994. - B Martin, H Kebede, C Rilling. Photosynthetic differences among Lycopersiconspecies and Triticum aestivum
cultivars. Crop Sci 34:113–118, 1994. - GC Wright, RC Nageswara Rao, GD Farquhar. Water-use efficiency and carbon isotope discrimination in
peanut under water deficit conditions. Crop Sci 34:92–97, 1994. - PQ Craufurd, TR Wheeler, RH Ellis, RJ Summerfield, JH Williams. Effect of temperature and water deficit on
water-use efficiency, carbon isotope discrimination, and specific leaf area in peanut. Crop Sci 39:136–142, 1999. - AG Condon, RA Richards, GD Farquhar. Carbon isotope discrimination is positively correlated with grain
yield and dry matter production in field grown wheat. Crop Sci 27:996–1001, 1987. - D Shimshi, J Ephrat. Stomatal behavior of wheat cultivars in relation to their transpiration and photosynthesis
and yield. Agron J 67:326–331, 1975. - RC Johnson, H Kebede, DW Mornhinweg, BF Carver, A Lanerayburn, HT Nguyen. Photosynthetic differences
amongTriticumaccessions at tillering. Crop Sci 27:1046–1050, 1987. - RL Dunstone, RM Gifford, LT Evans. Photosynthetic characteristics of modern and primitive wheat species in
relation to ontogeny and adaptation to light. Aust J Biol Sci 26:295–307, 1973. - J Masle, GD Farquhar. Effects of soil strength on the relation of water use efficiency and growth to carbon iso-
tope discrimination in wheat seedlings. Plant Physiol 86:32–38, 1988. - JW White, JA Castillo, J Ehleringer. Associations between productivity, root growth, and carbon isotope dis-
crimination in Phaseolus vulgarisunder water deficit. Aust J Plant Physiol 17:189–198, 1990. - AG Condon, RA Richards. Broad sense heritability and GXE interaction for carbon isotope discrimination in
field grown wheat. Aust J Agric Res 43:921–934, 1992. - IM Ray, MS Townsend, CM Muncy, JA Henning. Heritabilities of water-use efficiency traits and correlations
with agronomic traits in water-stressed alfalfa. Crop Sci 39:494–498, 1999. - RC Johnson, LM Bassett. Carbon isotope discrimination and water use efficiency in four cool season grasses.
Crop Sci 31:157–162, 1991. - PC Pheloung, KHM Siddique. Contribution of stem dry matter to grain yield in wheat cultivars. Aust J Plant
Physiol 18:53–64, 1991. - DS Falconer. Introduction to Quantitative Genetics. New York: Longman Group, 1981.
- MH O’Leary. Carbon isotope fractionation in plants. Phytochemistry 20:553–567, 1981.
- WJS Downton, WJR Grant, SP Robinson. Photosynthetic and stomatal responses of spinach leaves to salt
stress. Plant Physiol 78:85–88, 1985. - RD Guy, DM Reid. Photosynthesis and the influences of CO 2 enrichment on ^13 C values in a C 3 halophyte.
Plant Cell Environ 9:65–72, 1986. - K Winter, JAM Holtum, GE Edwards, MH O’Leary. Effect of low relative humidity on ^13 C values in two C 3
grasses and in Panicum melioides, a C 3 and C 4 intermediate species. J Exp Bot 33:88–91, 1982. - BN Sponchiado, JW White, JA Castillo, PG James. Root growth of common bean cultivars in relation to
drought tolerance in environments with contrasting soil types. Exp Agric 25:249–257, 1989. - E Acevedo. Improvement of winter cereal crops in Mediterranean environments. Use of yield, morphological
and physiological traits. In: E Acevedo, AP Conesa, P Monneveux, JP Srivastava, eds. Physiology-Breeding
of Winter Cereals for Stressed Mediterranean Environments. Paris: INRA, 1991. - NH Nam, GV Subbarao, YS Chauhan, C Johansen. Importance of canopy attributes in determining dry matter
accumulation of pigeonpea under contrasting moisture regimes. Crop Sci 38:955–961, 1998. - TC Hsiao, E Acevedo. Plant responses to water deficits, water-use efficiency, and drought resistance. Agric
Meteorol 14:59–84, 1974. - GH Heichel. Crop manipulation for efficient use of water: inadvertent and intended manipulations of crop wa-
ter use. In: HM Taylor, WR Jordan, TR Sinclair, eds. Limitations to Efficient Water Use in Crop Production.
Madison, WI: American Society of Agronomy, 1983, pp 375–380. - TA Coffelt, RO Hammons, WD Branch, PM Mozingo, PM Phipps, JC Smith, RE Lynch, CS Kvien, DL
Ketring, DM Porter, AC Misen. Registration of Tifton-8 peanut germplasm. Crop Sci 25:203, 1985. - PQ Craufurd, AB Austin. Carbon isotope discrimination as an indicator of drought tolerance. Annual Report
of the Agriculture and Food Research Council, Institute of Plant Science Research and John Innes Institute,
John Catt Ltd, England, 1987, pp 12–14. - GC Wright, RC Nageswara Rao, HB So. Variation in root characteristics and their association with water up-
take and drought tolerance in four peanut cultivars. Paper presented at the Australian Agronomy Conference,
The University of Adelaide, Adelaide, South Australia, September 19–24, 1993.
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