Abstract
Plant genotypic differences in available K and P distribution at root-soil interface were studied with five rape varieties, which were 890206 (Brassica. campestris), Indian Mustard (Brassica juncea), Luzhoujinhuang (Brassica juncea), K-100 (Brassica juncea) and Xinongchangjiao (Brassica napus). The significant depletion of P and K was observed in the rhizosphere of all five rape varieties. The depletion rate of available P was in the range of 28–44% and the order followed: 890206 > Indian Mustard > K-100 > Xinongchangjiao > Luzhoujinhuang. The depletion area of available P occurred within 3–5 mm from root surface; and a wider depletion range was observed in the rhizosphere of the variety tolerant to low nutrient supply as compared to that of sensitive varieties. The depletion range of available K within the 10 mm from the root surface with the rate ranging from 31% to 48% and was wider than that of available P. The variety 890206 showed the highest absorption capability. Xinongchangjiao and Luzhoujinhuang showed higher depletion rate than that of K-100 and Indian Mustard, indicating that high-yield varieties of 890206 and Xinongchangjiao had higher absorption capacity of K than that of low-yield variety K-100. The results indicated that K depletion rate in the rhizosphere of rape was higher than that of cotton and was similar to that of two K enrichment plant–tobacco and alligator weed (Alternanthern Philoxeroides Mart. Griseb).
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References
Chen C R, Condeon L M, Davis M R and Sherlock R P 2002 Phosphorus dynamics in the rhizosphere of perennial ryegrass (Lolium perenneL.) and rasiata pine (Pinus radiata D. Don). Soil Biol. Biochem. 34, 487–499.
Chen J X 1993 Effect of potassium nutrition of rice on rhizosphere soils. Soils (China) 25, 304–306.
Curl E A and Truelove B 1985 The rhizosphere. Springer–Verlag, Berlin, pp. 167–190.
Dakora F D and Phillips D A 2002 Root exudates as mediators of mineral acquisition in low–nutrient environments. Plant Soil 245, 45–47.
Dieffenbach A and Matzner E 2000 In situsoil solution chemistry in the rhizosphere of mature Norway spruce (Picea abiesL. Karst.) trees. Plant Soil 222, 149–161.
Dinkelaker B, Romheld V and Marschner H 1989 Citric acid excretion and precipitation of calcium citrate in the rhizosphere of white lupin (Lupinus albusL). Plant Cell Environ. 12, 285–292.
Fohse D, Claassen N and Jungk A 1991 Phosphorus efficiency of plants: II. Significance of root radius, root hairs and cation anion balance for phosphorus influx in seven plant species. Plant Soil 132, 261–272.
George T S, Gregory R J, Robinson J S and Buresh R J 2002 Changes in phosphorus concentrations and pH in the rhizosphere of some agroforestry and crop species. Plant Soil246, 65–73.
Gardner W K, Barber D A and Parberry D G 1983 The acquisition of phosphorus by lupinus albus L.III. The probable mechanism by which phosphorus movement on the soil–root interface is enhanced. Plant Soil 70, 107–124.
Hinsinger P 2001 Bioavailability of soil inorganic P in the rhizosphere as affected by root–induced chemical changes: A review.Plant Soil 237, 173–195.
Hoffland E, Van Den Boogaard R, Nelemans JA and Findenegg G 1992 Biosynthesis and root exudation of citric and malic acids in phosphate–starved rape plants. New Phytologist 122, 675–680.
Horst W J, Abdou M and Wiesler F 1996 Differences between wheat cultivars in acquisition and utilization of phosphorus. Z.Pflanzenernaehr. Bodenk. 159, 155–161.
Krasilnikoff G, Gahoonia T and Nielsen N E 2003 Variation in phosphorus uptake efficiency by genotypes of cowpea (vigna unguiculata) due to differences on root and root hair length and induced rhizosphere processes. Plant Soil 251, 83–101.
Kuchenbuch R and Jungk A 1982 A method for determining concentration profiles at the soil–root interface by thin slicing rhizosphere soil. Plant Soil 68, 391–394.
Liao ZW, Wang J L and Liu Z Y 1993 Si, Fe and Mn distributions in rice (Oryza sativaL) rhizosphere of red earths and paddy soils.Pedosphere 3, 1–6.
Liu Z Y, Li L M and Shi W M 1997 Research Methods in Rhizosphere. Jiangsu Science and Technology Publishing House, Nanjing, pp. 223–229.
Lynch J 1995 Root architecture and plant productivity. Plant Physiol. 109, 7–13.
Marschner H 1995 Mineral nutrition of higher plants (2nd edition).Academic Press, London. pp. 483–507.
Moorby H, White R E and Nye P H 1988 The influence of phosphate nutrition on H ion efflux from the roots of young rape plants.Plant Soil 105, 247–256.
Narang R A, Bruene A and Altmann T 2000 Analysis of phosphate acquisition efficiency in different Arabidopsisaccessions. Plant Physiol. 124, 1786–1799.
Olsen S R and Sommers T E 1982 Phosphorus. In A. L. Page et al. (ed) Methods of Soil analysis. Part 2, (2nd edition). American Society of Agronomy, Madison, WI. pp. 403–448.
Rengel Z 1997 Root exudation and microflora populations in rhizosphere of crop genotypes differing in tolerance to micronutrient deficiency. Plant Soil 196, 255–260.
Rengel Z 2002 Genetic control of root exudation. Plant Soil 245, 59–70.
Schachtman D P, Reid R J and Ayling S M 1998 Phosphorus uptake by plants: From soil to cell. Plant Physiol. 116, 447–453.
Shi W M and Liu Z Y 1987 Effects of NH3 and urea on K distribution in root and rhizosphere of maize. Fertil. Res. 14, 235–244.
Shi W M 1996 The roles of root exudates in material cycling in soil–plant system (rhizosphere). InProceedings of the 2nd International Workshop on Material Cycling in Pedosphere, Nanjing.Ed. Q G Zhao. pp. 238–2252.
Xu M L and Liu Z Y 1983 The Nutrient status of soil–root interface II. The accumulation and depletion of potassium. Acta Pedol.Sinica 20, 295–302.
Yan W D, Shi W M, Liao H Q and Cao Z H 1997 Genotypic difference of plants in K–enrichment capability and the distribution of K in plant rhizosphere. Pedosphere 7, 165–170.
Zhang J and George E 2002 Changes in the extractability of cations (Ca, Mg and K) in the rhizosphere soil of Norway spruce (Picea abies) roots. Plant Soil 243, 209–217.
Zhu Y G, Smith S E and Smith F A 2001 Plant growth and cation composition of two cultivars of spring wheat (Triticum aestivumL.) differing in P uptake efficiency. J. Exp. Bot. 52, 1277–1282.
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Shi, W., Wang, X. & Yan, W. Distribution patterns of available P and K in rape rhizosphere in relation to genotypic difference. Plant and Soil 261, 11–16 (2004). https://doi.org/10.1023/B:PLSO.0000035571.26352.99
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DOI: https://doi.org/10.1023/B:PLSO.0000035571.26352.99