Abstract
Subsurface soil acidity coupled with high levels of toxic Al is a major limiting factor in wheat production in many areas of the world. This study examined the effect of subsurface soil acidity on the growth and yield of two near-isogenic wheat genotypes differing in Al tolerance at a single genetic locus in reconstructed soil columns. In one experiment, plants were grown in columns with limed topsoil and limed or acidic subsurface soils, and received water only to the subsurface soil at a late part of the growth period. While shoot dry weight, ear number and grain yield of Al-tolerant genotype (ET8) were not affected by subsurface soil acidity, liming subsurface soil increased shoot weight and grain yield of Al-sensitive genotype (ES8) by 60% and ear number by 32%. Similarly, root length density of ET8 was the same in the limed and acidic subsurface soils, while the root length density of ES8 in the acidic subsurface soil was only half of that in the limed subsurface soil. In another experiment, plants were grown with limed topsoil and acidic subsurface soil under two watering regimes. Both genotypes supplied with water throughout the soil column produced almost twice the dry weight of those receiving water only in the subsurface soil. The tolerant genotype ET8 had shoot biomass and grain yield one-third higher than ES8 when supplied with water throughout the whole column, and had yield 11% higher when receiving water in the subsurface soil only. The tolerant genotype ET8 produced more than five times the root length in the acidic subsurface soil compared to ES8. Irrespective of watering regime, the amount of water added to maintain field capacity of the soil was up to 2-fold higher under ET8 than under ES8. The results suggest that the genotypic variation in growth and yield of wheat grown with subsurface soil acidity results from the difference in root proliferation in the subsurface soil and hence in utilizing nutrient and water reserves in the subsurface soil layer.
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References
Bauhaus J and Messiergron C 1999 Evaluation of fine root length and diameter measurements obtained using RHIZO image analysis. Agron. J. 91, 142–147.
Carr S J, Ritchie G S P and Porter W M 1991 A soil test for subsurface soil aluminium toxicity in the yellow earth soils of Western Australia. Aust. J. Agric. Res. 42, 875–892.
Carr S J and Ritchie G S P 1994 Interacting effects of topsoil water and nitrogen supply on subsurface soil aluminium toxicity. Commun. Soil Sci. Plant Anal 25, 3335–3356.
Delhaize E, Craig S, Beaton C D, Bennet R J, Jagadish V C and Randall P J 1993a Aluminum tolerance in wheat (Triticum aestivum L.). I. Uptake and distribution of aluminum in root apices. Plant Physiol. 103, 683–693.
Delhaize E, Ryan P R and Randall P J 1993b Aluminum tolerance in wheat (Triticum aestivum L.). II. Aluminum-stimulated excretion of malic acid from root apices. Plant Physiol. 103, 695–702.
Doss B D and Lund Z F 1975 Subsurface soil pH effects on growth and yield of cotton. Agron. J. 67, 193–196.
Fisher J A and Scott B J 1983 Breeding wheats for tolerance to acid soils. In Proceedings of the Australian Plant Breeding Conference, Adelaide. p. 333. February 1983.
Fisher J A and Scott B J 1987 Response to selection for aluminium tolerance. In Priorities in Soil/Plant Relations: Research for Plant Production. Eds. P G E Searle and B G Davey. pp 135–137.
Goldman I L, Carter T E and Patterson R P 1989 A detrimental interaction of subsurface soil aluminium and drought stress on the leaf water status of soybean. Agron. J. 81, 461–463.
Helyar K R 1991 The management of acid soils. In Plant-Soil Interactions at Low pH. Eds. R J Wright, V C Baligar and R P Murrman. pp 365–382. Kluwer Academic Publishers, Dordrecht.
Jayawardane N S, Barrs H D, Muirhead W A, Blackwell J, Murray E and Kirchhof G 1995 Lime-slotting technique to ameliorate subsurface soil acidity in a clay soil. II. Effects on medic root growth, water extraction and yield. Aust. J. Soil Res. 33, 443–459.
Kauffman M D and Gardner E H 1978 Segmental liming of soil and its effect on the growth of wheat. Agron. J. 70, 331–336.
Kerven G L, Asher C J, Edwards D G and Ostatek-Boczynski Z 1991 Sterile solution culture techniques for aluminum studies involving organic acids. J. Plant Nutr. 14, 475–985.
McLay C D A, Ritchie G S P and Porter W M 1994 Amelioration of subsurface acidity in sandy soils in low rainfall regions. I. Responses of wheat and lupins to surface-applied gypsum and lime. Aust. J. Soil Res. 32, 835–846.
Nambiar E K S 1977 The effect of drying of the topsoil and of micronutrients in the subsurface soil on micronutrient uptake by an intermittently defoliated ryegrass. Plant Soil 46, 185–193.
Pinkerton A and Simpson J R 1986 Interactions of surface drying and subsurface nutrients affecting plant growth on acidic soil profiles from an old pasture. Aust. J. Exp. Agric. 26, 681–689.
Rajaram S, Kohli M M and Lopez-Cesati J 1991 Breeding for tolerance to aluminium toxicity in wheat. In Plant-Soil Interactions at Low pH. Eds. R J Wright, V C Baligar and R P Murrmann. pp 1019–1028. Kluwer Academic Publishers, Dordrecht.
Rengel Z 1996 Uptake of aluminium by plant cells. New Phytol. 134, 389–406.
Reuter D J and Robinson J B 1997 Plant Analysis: an Interpretation Manual. CSIRO Publishing, Collingwood, Victoria, Australia. 572 p.
Robinson D 1994 The responses of plants to non-uniform supplies of nutrients. New Phytol. 127, 635–674.
Ryan P R, Delhaize E and Randall P J 1995a Characterisation of Alstimulated efflux of malate from the apices of Al-tolerant wheat roots. Planta 196, 103–110.
Ryan P R, Delhaize E and Randall P J 1995b Malate efflux from root apices and tolerance to aluminium are highly correlated in wheat. Aust. J. Plant Physiol. 22, 531–536.
Scott B J, Fisher J A and Spohr L J 1992 Tolerance of Australian wheat varieties to aluminium toxicity. Commun. Soil Sci. Plant Anal. 23, 509–526.
Simpson J R and Lipsett J 1973 Effects of surface moisture supply on the subsurface soil nutritional requirements of lucerne (Medicago sativa L.). Aust. J. Agric. Res. 24, 199–209.
Simpson J R and Pinkerton A 1989 Fluctuations in soil moisture, and plant uptake of surface applied phosphate. Fert. Res. 20, 101–108.
Sumner M E, Shahandeh H, Bouton J and Hammel J 1986 Amelioration of an acid soil profile through deep liming and surface application of gypsum. Soil Sci. Soc. Am. J. 50, 1254–1258.
Tang C, Raphael C, Rengel Z and Bowden JW 2000 Understanding subsurface soil acidification: Effect of nitrogen transformation and nitrate leaching. Aust. J. Soil Res. 38, 837–849.
Walkley A and Black I A 1934 An examination of the Degtjareffe method for determining soil organic matter and a proposed modification of the chromic acid titration method. Soil Sci. 37, 29–38
Zhang W H and Rengel Z 1999 Aluminium induces an increase in cytoplasmic calcium in intact wheat root apical cells. Aust. J. Plant Physiol. 26, 401–409.
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Tang, C., Diatloff, E., Rengel, Z. et al. Growth response to subsurface soil acidity of wheat genotypes differing in aluminium tolerance. Plant and Soil 236, 1–10 (2001). https://doi.org/10.1023/A:1011930205505
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DOI: https://doi.org/10.1023/A:1011930205505