Bibliography

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Abaidoo, R.C., H.H. Keyser, P.W. Singleton, D. Borthakur. 2000. Bradyrhizobium spp. (TGx) isolates nodulating the new soybean cultivars in Africa are diverse and distinct form bradyrhizobia that nodulate North American soybeans. Int. J. Syst. Evol. Micro. 50:225-234. WORD  PDF  HTML

Abaidoo, R. and C. van Kessel. 1989. 15N Uptake, N2 fixation and Rhizobium interaction in soybean and bean intercropped with maize. Soil Biol Biochem 21:155-159. WORD  PDF

Abaidoo, R.C., T. George, B.B. Bohlool and P. Singleton. 1990. Influence of elevation and applied nitrogen on rhizosphere colonization and competition for nodule occupancy by different rhizobial strains on field-grown soybean and common bean. Can J Microbiol 36:92-96. WORD  PDF  HTML

Asad, S., K.A. Malik and F.Y. Hafeez. 1991. Competition between inoculated and indigenous Rhizobium/Bradyrhizobium spp. strains for nodulation of grain and fodder legumes. Pakistan Biol Fertil Soils 12:107-111.

Ayanaba, A., S. Asanuma and D.N. Munns. 1983. An agar plate method for rapid screening of Rhizobium for tolerance to acid-aluminum stress. Soil Sci Soc Am J 47:256-258. WORD  PDF

Beck, D.P. and D.N. Munns. 1984. Phosphate nutrition of Rhizobium spp. Appl Envir Microbiol 47(2):278-282. WORD  PDF

Beck, D.P. and D.N. Munns. 1985. Effect of calcium on the phosphorus nutrition of Rhizobium meliloti. Soil Sci Soc Am J 49:334-337.WORD  PDF

Berger, J.A., S.N. May, L.R. Berger and B.B. Bohlool. 1979. Colorimetric enzyme-linked immunosorbent assay for the identification of strains of Rhizobium in culture and in the nodules of lentils. Appl Envir Microbiol 37(3):642-646.WORD  PDF

Bohlool, B.B., J.K. Ladha, D.P. Garrity and T. George. 1992. Biological nitrogen fixation for sustainable agriculture: a perspective. Plant Soil 141:1-11. WORD  PDF

B. Ben Bohool and E.L. Schmidt. 1980. The Immunofluorescence Approach in Microbial Ecology. In M.Alexander (ed)Advances in Microbial Ecology, Vol. 4 Plenum Publishing Corporation. WORD PDF

Cassman, K.G. and D.N. Munns.  1980.  Nitrogen mineralization as affected by soil moisture, temperature, and depth.  Soil Sci. Soc. Am. J. 44:1233-1237.  WORD  PDF

Cassman, K.G., D.N. Munns and D.P. Beck. 1981. Phosphorus nutrition of Rhizobium japonicum: strain differences in phosphate storage and utilization. Soil Sci Soc of Amer J 45 (3):517-520.  WORD  PDF

Cassman, K.G., D.N. Munns and D.P. Beck. 1981. Growth of Rhizobium strains at low concentrations of phosphate. Soil Sci Soc of Amer J 45 (3):520-523. WORD  PDF

Cassman, K.G., P.W. Singleton and B.A. Linquist. 1993. Input/output analysis of the cumulative soybean response to phosphorus on an Ultisol. Field Crops Res 34:23-36. WORD  PDF

Cassman, K.G., A.S. Whitney and R.L. Fox. 1981. Phosphorus requirements of soybean and cowpea as affected by mode of N nutrition. Agron J 73:17-22. WORD  PDF

Cassman, K.G., A.S. Whitney and K.R. Stockinger. 1980. Root growth and dry matter distribution of soybean as affected by phosphorus stress, nodulation, and nitrogen source. Crop Sci 20(2):239-244. WORD  PDF

Chanaseni, C. and S. Kongngoen. 1992. Extension programs to promote rhizobial inoculants for soybean and groundnut in Thailand. Can J Microbiol 38:594-597. WORD  PDF

Cunningham, S.D. and D.N. Munns. 1984. Effects of rhizobial extracellular polysaccharide on pH and aluminum activity. Soil Sci Soc Am J 48:1276-1280.  WORD  PDF

Cunningham, S.D. and D.N. Munns. 1984. The correlation between extracellular polysaccharide production and acid tolerance in rhizobium. Soil Sci Soc Am J 48:1273-1276. WORD  PDF

Dowdle, S.F. and B.B. Bohlool. 1985. Predominance of fast-growing Rhizobium japonicum in a soybean field in the People's Republic of China. Appl Env Micro 50 (5):1171-1176.  WORD  PDF

Dowdle, S.F. and B.B. Bohlool. 1987. Intra- and interspecific competition in Rhizobium fredii and Bradyrhizobium japonicum as indigenous and introduced organisms. Can J Microbiol 33:990-995. WORD  PDF

Eriksen, F.I. and A.S. Whitney. 1981. Effects of light intensity on growth of some tropical forage species. I. Interaction of light intensity and nitrogen fertilization on six forage grasses. Agron J 73:427-433. WORD  PDF

Eriksen, F.I and A.S. Whitney. 1982. Growth and N fixation of some tropical forage legumes as influenced by solar radiation regimes. Agron J 74:703-709. WORD  PDF

Eriksen, F.I. and A.S. Whitney. 1984. Effects of solar radiation regimes on growth and N2 fixation of soybean, cowpea, and bushbean. Agron J 76 (4):529-535. WORD  PDF

George, M.L.C. and F.M. Robert. 1991. Autoregulatory response of Phaseolus vulgaris L. to symbiotic mutants of Rhizobium leguminosarum bv. phaseoli. Appl Environ Microbiol 57(9):2687-2692. WORD  PDF

George, M.L.C. and F.M. Robert. 1992. Competition among Rhizobium leguminosarum bv. phaseoli strains for nodulation of common bean. Can J Microbiol 38:157-160. WORD  PDF

George, M.L.C., F.M. Robert and D. Borthakur. 1992. Genetic analysis of Rhizobium leguminosarum bv. phaseoli mutants defective in nodulation and nodulation suppression. Appl Environ Microbiol 58(3):1050-1053. WORD  PDF

George, M.L.C., F.M. Robert and B.B. Bohlool. 1992. Nodulation suppression by Rhizobium leguminosarum bv. phaseoli in bean split-root systems. Symbiosis 12:95-105. WORD  PDF

George, M.L.C., J.P.W. Young and D. Borthakur. 1994. Genetic characterization of Rhizobium sp. strain TAL 1145 that nodulates tree legumes. Canadian J Microbiol 40:208-215. WORD  PDF

George, T., R. Magbanua, B. Tubana, J. Quiton, A. Almendra, W. Khatib, F. Cox and R. Yost. 1999. Estimating buffer coefficients for the phosphorus decision support system using field and laboratory measurements. Comm. Soil Sci. and Plant Anal. In Press.

George, T., J.K. Ladha, D.P. Garrity and R.J. Buresh. In press. Legumes as nitrate 'catch' crops during the dry-to-wet season transition in lowland rice-based cropping systems. Agronomy J.

George, T. 1998. Nutrient decision-aids for the transition to high value production systems in erosion-free Asian uplands. In 16th World Congress Soil Science, 20-26 August 1998 Montpellier France. CIRAD 1998.

George, T., R.J. Buresh, J.K. Ladha and G. Punzalan. 1998. Recycling in situ of legume-fixed and soil nitrogen in tropical lowland rice. Agron. J. 90:429-437. 

George, T., W. Roder, G. Trebuil, and K. Van Keer. 1997. Phosphorus limitation in rice systems of southeast Asian acid uplands.  Paper presented at the IV Intl. Symposium on Plant-Soil Interactions at Low pH, Belo Horizonte, Minas Gerais, Brazil, 17-24 March 1996. Abstract in: (ed.) A.C. Moniz, A.M. C. Furlani, R.E. Schaffert, N.K. Fageria, C.A. Rosolem and H. Cantarella. Proc. IV Intl. Symposium on Plant-Soil Interactions at Low pH, Belo Horizonte, Minas Gerais, Brazil, 17-24 March 1996. Brazilian Soil Science Society, Campinas/Vicosa. 

George, T., G.J.D. Kirk, A. Almendras, L. Sonon, R. Serohijos, W. Chaitep, A. Thirathon, W. Khatib, S. Abdullah, A. Warman, T. Naim and R. Magbanua. 1996. Strategic research on soil fertility management for upland rice areas in South and Southeast Asia. In: Upland rice: Research for better production and sustainability, Discussion Paper Series no. 16. IRRI.

George, T., J.K. Ladha, R.J. Buresh and D.P. Garrity. 1993. Nitrate dynamics during the aerobic soil phase in lowland rice-based cropping systems. Soil Sci Am J 57:1526-1532. WORD  PDF

George T., P.W. Singleton and C. van Kessel. 1993. The use of nitrogen-15 natural abundance and nitrogen yield of non-nodulating isolines to estimate nitrogen fixation by soybeans (Glycine max L.) across three elevations. Biol Fertil Soils 15:81-86. WORD  PDF

George T. and P.W. Singleton. 1992. Nitrogen assimilation traits and dinitrogen fixation in soybean and common bean. Agron J 84(6):1020-1028. WORD  PDF

George, T., J.K. Ladha, R.J. Buresh and D.P. Garrity. 1992. Managing native and legume-fixed nitrogen in lowland rice-based cropping systems. Plant Soil 141:69-91. WORD  PDF

George, T., D.P. Bartholomew and P.W. Singleton. 1990. Effect on temperature and maturity group on phenology of field grown nodulating and nonnodulating soybean isolines. Biotronics 19:49-59. WORD  PDF

George, T., P.W. Singleton and B.B. Bohlool. 1988. Yield, soil nitrogen uptake, and nitrogen fixation by soybean from four maturity groups grown at three elevations. Agron J 80(4):563-567. WORD PDF

George, T., B.B. Bohlool and P. Singleton. 1987. Bradyrhizobium japonicum-environment interactions: nodulation and interstrain competition in soils along an elevatioal transect. Appl Environ Microbiol 53(5):1113-1117. WORD  PDF

Guevarra, A.B., Y. Kitamura, A.S. Whitney and K.G. Cassman. 1980. A low-cost system for circulating nutrient solutions in pot studies. Crop Sci 20(1):.110-112.  WORD  PDF

Guevarra, A.B., A.S. Whitney and J.R. Thompson. 1978. Influence of intro-row spacing and cutting regimes on the growth and yield of Leucaena. Agron J 70:1033-1037. WORD  PDF

Habte, M. 1985. Selective medium for verifying specific populations of rhizobia introduced into tropical soils. Appl Environ Microbiol 50(6):1553-1555. WORD  PDF

Hoben, H.J., N.N. Aung, P. Somasegaran and U.G. Kang. 1991. Oils as adhesives for seed inoculation and their influence on the survival of Rhizobium spp. and Bradyrhizobium spp. on inoculated seeds. World J Microbiol Biotech 7:324-330. WORD  PDF

Hoben, H.J. and P. Somasegaran. 1982. Comparison of the pour, spread, and drop plate methods for enumeration of Rhizobium spp. in inoculants made from presterilized peat. Appl Envion Microbiol 44(5):12461247.

Hoben, H.J. and P. Somasegaran. 1992. A simple transfer chamber for aseptic work with microorganisms. World J Microbiol Biotech 8(3):331-332.  See NifTAL Illustrated Concept for identical presentation WORD  PDF

Hoben, H.J. and P. Somasegaran. 1992. A small glass fermenter for the production of Rhizobium inoculum. World J Microbiol Biotech 8(3):333-334.See NifTAL Illustrated Concept for identical presentation  WORD  PDF

Hoben, H.J., P. Somasegaran, N. Boonkerd, and Y.D. Gaur. 1994. Polyclonal antisera production by immunization with mixed cell antigens of different rhizobial species. World J Microbiol Biotech 10: 538-542. WORD  PDF

Hohenberg, J.S., D.N. Munns and C.L. Tucker. 1982. Rhizobium-host specificities in Phaseolus coccineus L. and Phaseolus vulgaris L. Crop Sci 22(3):455-459. WORD  PDF

Kahindi, J.H.P, P. Woomer, T. George, F.M. de Souza Moreira, N.K. Karanja and K.E. Giller. 1997. Agricultural intensification, soil biodiversity and ecosystem function in the tropics: the role of nitrogen-fixing bacteria. Appl. Soil Ecol. 6:55-76.

Kang, U.G., Y.T. Jung, P. Somasegaran and B.B. Bohlool. 1991. Symbiotic and serological characteristics of Bradyrhizobium japonicum neutralized in Yeongnam soils. J Korean Soc Soil Sci Fertil 24(1):61-68.

Kang, U., P. Somasegaran, H.J. Hoben and B.B. Bohlool. 1991. Symbiotic potential, competitiveness, and serological properties of Bradyrhizobium japonicum indigenous to Korean soils. Appl Environ Microbiol 57(4):1038-1045. WORD  PDF

Keyser, H.H. 1992. Inoculating tree legume seeds and seedlings with rhizobia. World J Microbiol Biotech 8(3):340-341.

Keyser, H.K. and F. Li. 1992. Potential for increasing biological nitrogen fixation in soybeans. Plant Soil 141:119-135. WORD  PDF

Keyser, H.H. and D.N. Munns. 1979. Effects of calcium, manganese, and aluminum on growth of rhizobia in acid media. Soil Sci Soc of Amer J 43(3):500-503. WORD  PDF

Keyser, H.H. and D.N. Munns. 1979. Tolerance of rhizobia to acidity, aluminum, and phosphate. Soil Sci Soc Amer J 43(3):519-523. WORD  PDF

Keyser, H.H., D.N. Munns and J.S. Hohenberg. 1979. Acid tolerance of rhizobia in culture and in symbiosis with cowpea. Soil Sci Soc Amer J 43(4):719-722. WORD  PDF

Kingsley, M.T. and B.B. Bohlool. 1992. Extracellular polysaccharide is not responsible for aluminum tolerance of Rhizobium leguminosarum bv. phaseoli CIAT899. Appl Environ Microbiol 58(5):1095-1101. WORD  PDF

Kirk, G.J.D., T. George, B. Courtois and D. Senadhira. 1998. Opportunities to improve phosphorus efficiency and soil fertility in rain-fed lowland and upland rice ecosystems.  Field Crops Res. 56:73-92.

Kishinevsky, B.D., D. Gurfel, N. Boonkerd and C. Nemas. 1993. Serological grouping of indigenous Bradyrhizobium sp (Arachis) isolated from various soils of Thailand. World J Microbiol Biotech 9(6):635-640. WORD  PDF

Kitamura, Y., A.S. Whitney and A.B. Guevarra. 1981. Legume growth and nitrogen fixation as affected by plant competition for light and soil nitrogen. Agron J 73:395-398.  WORD  PDF

Kosslak, R.M. and B.B. Bohlool. 1985. Influence of environmental factors on interstrain competition in Rhizobium japonicum. Appl Environ Micro 49(5):1128-1133. WORD  PDF

Lindquist, B.L., P.W. Singleton, R.S. Yost, and K.G. Cassman.  1997.  Aggregate size effects on the sorption and release of phosphorus in an ultisol.  Soil Sci. Soc. Am. J. 61:160-166. WORD  PDF HTML

Latchford, J.W., D. Borthakur and A.W.B. Johnston. 1991. The products of Rhizobium genes, psi and pss, which affect exoploysaccharide production, are associated with the bacterial cell surface. Mol Microbiol 5:2107-2114. WORD  PDF

Lupwayi, N.Z., P.E. Olsen, E.S. Sande, H.H. Keyser, M.M. Collins, P. Singleton and W.A. Rice.  Inoculant quality and its evaluation.  In Applied Technologies in Biological Nitrogen Fixation.  Field Crops Res. 65:259-270.

May, S.N. and B.B. Bohlool. 1983. Competition among Rhizobium leguminosarum strains for nodulation of lentils (Lens esculenta). Appl Environ Microbiol 45(3):960-965. WORD  PDF

Moawad, H. and B.B. Bohlool. 1992. Characterization of rhizobia from leucaena. World J Microbiol Biotechnol 8:387-392. WORD  PDF

McNeil, D.L. 1982. Variations in ability of Rhizobium japonicum strains to nodulate soybeans and maintain fixation in the presence of nitrate. Appl Environ Microbiol 44(3):647-652. WORD  PDF

Mirza, N.A., B.B. Bohlool and P. Somasegaran. 1990. Non-destructive chlorophyll assay for screening of strains of Bradyrhizobium japonicum. Soil Sci Biochem 22(2):203-207. WORD  PDF

Munns, D.N., H.H. Keyser, V.W. Fogle, J.S. Hohenberg, T.L. Righetti, D.L. Lauter, M.G. Zaroug, K.L. Clarkin, and K.W. Whitacre. 1979. Tolerance of soil acidity in symbiosis of mung bean with rhizobia. Agron J 71(2):256-260. WORD  PDF

Munns, D.N. and H.H. Keyser. 1981. Response of Rhizobium strains to acid and aluminum stress. Soil Biol Biochem 13:115-118. WORD  PDF

Olsen, P.E., E.S. Sande, H.H. Keyser, P.W. Singleton and W.A. Rice. 1998. A very rapid enzyme immunoassay for confirmation of rhizobial identity and estimation of cell numbers in fresh broth culture. Can. J. Microbiol. 44:382-385.

Olsson, J.E., P. Nakao, B.B. Bohlool and P.M. Gresshoff. 1989. Lack of systemic suppression of nodulation in split root systems of supernodulating soybean (Glycine max [LJ Merr.) mutants. Plant Physiol 90: 1347-1352. WORD  PDF

Padmanabhan, S., R.D. Hirtz and W.J. Broughton. 1990. Rhizobia in tropical legumes: cultural characteristics of Bradyrhizobium and Rhizobium sp. Soil Biol Biochem 22(1):23-28. WORD PDF

Parveen, N. and D. Borthakur. 1994. Construction of a single-transposon-insertion mutant in Rhizobium sp. strain TAL 1145 from a double-insertion mutant. Appl Microbiol 19:142-145.

Parveen, N., D.T. Webb and D. Borthakur. 1996. Leucaena leucocephala nodules formed by a surface polysaccharide defective mutant of Rhizobium sp. strain TAL 1145 are delayed in bacteroid development and nitrogen fixation.  Molec. Plant-Microbe Inter. 9:364-372. PDF

Parveen, N., D.T. Webb and D. Borthakur.  1997.  The symbiotic phenotypes of exopolysaccharide-defective mutants of Rhizobium sp. strain TAL 1145 do not differ on determinate- and indeterminate-nodulating tree legumes. Microbiology 143:1959-1967. WORD  PDF

Pooyan, S., M.L.C. George, and D. Borthakur. 1994. Characterization of Rhizobium etli chromosomal gene required for nodule development on Phaseolus vulgaris L. World J Microbiol Biotech 10:583-589. WORD  PDF

Rangarajan, M., P. Somasegaran and H. Hoben. 1988. Serological relatedness among strains of Rhizobium meliloti originated from different geographical regions. Nat Acad Sci Ltrs 11(10):303-305.

Robert, F.M. 1989. Multiple forms of glutamine synthetase in nodules of tropical legumes inoculated with Bradyrhizobium and Rhizobium sp. Plant Sci 65:33-38. WORD  PDF

Romero, D., P.W. Singleton, L. Segovia, E. Morett, B.Bohlool, R. Palacios and G. Pavilla. 1988. Effect of naturally occurring nif reiterations on symbiotic effectiveness in Rhizobium phaseoli. Appl Env Micro 54(3):848-850. WORD  PDF

Roskoski, J.P. 1992. Biological nitrogen fixation (BNF): commonly asked questions and answers. World J Microbiol Biotech 8(3):337-339.

Roskoski, J.P., I. Pepper and E. Pardo. 1986. Inoculation of leguminous trees with rhizobia and va mycorrhizal fungi. For Ecol Manag 16:57-68.

Roskoski, J.P. and C. van Kessel. 1985. Annual, seasonal and diel variation in nitrogen fixing activity by Inga jinicuil, a tropical leguminous tree. Oikos 44:306-312. WORD  PDF

Sadowsky, M.J. and B.B. Bohlool. 1985. Differential expression of the pea symbiotic plasmid pJB5JI in genetically dissimilar backgrounds. Symbiosis 1:125-138. WORD  PDF

Sadowsky, M.J. and B.B. Bohlool. 1986. Growth of fast- and slow-growing rhizobia on ethanol. Appl Environ Microbiol 52(4):951-953. WORD  PDF

Singleton, P.W. 1983. A split-root growth system for evaluating the effect of salinity on components of the soybean Rhizobium japonicum symbiosis. Crop Sci 23:259-262. WORD  PDF

Singleton, P.W., H.M. Abdel Magid and J.W. Tavares. 1985. Effect of phosphorus on the effectiveness of strains of Rhizobium japonicum. Soil Sci Soc of Am J 49(3):613-616. WORD  PDF

Singleton, P.W. and B.B. Bohlool. 1983. Effect of salinity on the functional components of the soybean Rhizobium japonicum symbiosis. Crop Sci 23:815-818. WORD  PDF

Singleton, P.W. and B.B.-Bohlool. 1984. The effect of salinity on nodule formation by soybean. Plant Physiol 74:72-76. WORD  PDF

Singleton, P.W., S.A. El Swaify and B.B. Bohlool. 1982. Effect of salinity on Rhizobium growth and survival. Appl Environ Microbiol 44(4):884-890.  PDF

Singleton, P.W. and K.R. Stockinger. 1983. Compensation against ineffective nodulation in soybean. Crop Sci 23:69-72. WORD  PDF

Singleton, P.W. and J.W. Tavares. 1986. Inoculation response of legumes in relation to number and effectiveness of indigenous Rhizobium populations. Appl Environ Microbiol 51(5):1013-1018. WORD PDF

Singleton, P. and C. van Kessel. 1987. Effect of localized nitrogen availability to soybean half-root systems on photosynthate partitioning to roots and nodules. Plant Physiol 83:552-556. WORD  PDF

Soedarjo, M., T.K. Hemscheidt and D. Borthakur. 1994. Mimosine, a toxin present in leguminous trees (Leucaena spp.), induces a mimosine-degrading enzyme activity in some Rhizobium strains. Appl Environ Microbiol 60(12):4268-4272. WORD  PDF

Somasegaran, P. 1985. Inoculant production with diluted liquid cultures of Rhizobium spp. and autoclaved peat: evaluation of diluents, Rhizobium spp., peats, sterility requirements, storage, and plant effectiveness. Appl Env Micro 50(2):398-405.  PDF

Somasegaran, P., R.C. Abaidoo and F. Kumaga. 1990. Host-Bradyrhizobium relationships and nitrogen-fixation in the Bambarra groundnut [Voandzeia subterranea (L.) Thouars nom. cons.]. Trop Agric 67(2):137-142. WORD  PDF

Somasegaran, P. and B.B. Bohlool. 1990. Single-strain vs. multistrain inoculation on rhizobial strain effectiveness and competition for nodulation on chickpeas, soybeans, and dry bean. Appl Environ Microbiol 56(11):3298-3303. WORD  PDF

Somasegaran, P. and J. Halliday. 1982. Dilution of liquid Rhizobium cultures to increase production capacity of inoculant plants. Appl Environ Microbiol 44(2):330-333. WORD  PDF

Somasegaran, P., H.J. Hoben and J.C. Burton. 1992. A medium-scale fermentor for mass culture of rhizobia. World J Microbiol Biotech 8(3):335-336. For an identical presentation see niftAL Illustrated Concept   WORD  PDF

Somasegaran, P., H.J. Hoben and V. Gurgun. 1988. Effects of inoculation rate, rhizobial strain competition, and nitrogen fixation in chickpea. Agron J 80(1):68-73.

Somasegaran, P., H.J. Hoben and L. Lewinson. 1990. Symbiotic interactions of Phaseolus acutifolius and P. acutifolius x P. vulgaris hybrid progenies in symbiosis with Bradyrhizobium spp. and Rhizobium leguminosarum bv. phaseoli. Can J Microbiol 37:497503. WORD  PDF

Somasegaran, P. and R.B. Martin. 1986. Symbiotic characteristics and Rhizobium requirement of a Leucaena leucocephala x L. diversifolia hybrid and its parental genotypes. Appl Environ Microbiol 52(6):1422-1424. WORD  PDF

Somasegaran, P., V.G. Reyes and H.J. Hoben. 1984. The influence of high temperatures on the growth and survival of Rhizobium spp. in peat inoculants during preparation, storage, and distribution. Can J Micro 30(1):23-30. WORD  PDF

Somasegaran, P., R. Woolfenden and J. Halliday. 1983. Suitability of oven-dried nodules for Rhizobium strain identification by immunofluorescence and agglutination. J Appl Bact 55:253-261.

Thies, J.E., B.B. Bohlool and P.W. Singleton. 1992. Environmental effects on competition for nodule occupancy between introduced and indigenous rhizobia and among introduced strains. Can J Microbiol 38:493-500. WORD  PDF

Thies, J.E., P.W. Singleton and B.B. Bohlool. 1991. Influence of the size of indigenous rhizobial populations on establishment and symbiotic performance of introduced rhizobia on field-grown legumes. Appl Environ Microbiol 57(1):19-28.  WORD  PDF

Thies, J.E., P.W. Singleton and B.B. Bohlool. 1991. Modeling symbiotic performance of introduced rhizobia in the field by use of indices of indigenous population size and nitrogen status of the soil. Appl Environ Microbiol 57(1):29-37. WORD  PDF

Thies, LE., P.W. Singleton and B.B. Bohlool. 1991. Subgroups of the cowpea miscellany - symbiotic specificity within Bradyrhizobium spp. for Vigna unguiculata, Phaseolus lunatus, Arachis hypogaea, and Macroptillium atropureum.. Appl Environ Microbiol 57(5):1540-1545. WORDPDF

Thies, J.E., P.W. Singleton and B.B. Bohlool. 1995. Phenology, growth, and yield of field-grown soybean and bushbean as a function of varying modes of N nutrition. Soil Biol Biochem 27:575-583.  WORD  PDF

Thies, LE., P.L. Woomer and P.W. Singleton. 1995. Enrichment of Bradyrhizobium spp. populations in soil due to cropping of the homologous host legume. Soil Biology Biochem 27:633-636. WORDPDF

Tong, Z. and M. Sadowsky. 1994. A selective medium for the isolation and quantification of Bradyrhizobium japonicum and Bradyrhizobium elkanii strains from soils and inoculants. Appi Environ Microbiol 60:581-586. WORD  PDF

Turk, D. and H.H. Keyser. 1992. Rhizobia that nodulate tree legumes: specificity of the host for nodulation and effectiveness. Can J Microbiol 38:451-460. WORD  PDF

Turk, D. and H.H. Keyser. 1993. Accuracy of most probable-number estimates of rhizobia for tree legumes. Soil Boil Biochem 25(1):69-74. WORD  PDF

Turk, D., H.H. Keyser and P.W. Singleton. 1993. Response of tree legumes to rhizobial inoculation in relation to the population density of indigenous rhizobia. Soil Boil Biochem 25(1):75-81. WORD  PDF

van Kessel, C., P.W. Singleton and H.J. Hoben. 1985. Enhanced N-transfer from a soybean to maize by vesicular arbuscular mycorrhizal (VAM) fungi. Plant Physiol 70:562-563.  WORD  PDF

van Kessel, C. and P. Nakao. 1986. The use of nitrogen-15 depleted ammonium sulfate for estimating nitrogen fixation by leguminous trees. Agron J 78(3):549-551. WORD  PDF

van Kessel, C. and J.P. Roskoski. 1988. Row spacing effects on N2 -fixation, N-yield and soil N uptake of intercropped cowpea and maize. Plant Soil 111:17-23. WORD  PDF

van Kessel, C., J.P. Roskoski and K. Keane. 1988. Ureide production by N2-fixing and non-N2-fixing leguminous trees. Soil Biol Biochem 20(6):891-897. WORD  PDF

van Kessel, C., R.E. Farrell, J.P. Roskoski and K. Keane. 1994. Recycling of the naturally-occurring 15N in an established stand of Leucaena leucophala. Soil Biol Biochem 26:757-762.

Wade, L. J., T. George, J.K. Ladha, U. Singh, S.I. Bhuiyan and S. Pandey. 1998. Opportunities to manipulate nutrient by water interactions in rain-fed lowland rice systems. Field Crops Res. 56:93-112.

Wolff, A.B., P.W. Singleton, M. Sidirelli and B.B. Bohlool. 1992. Influence of acid soil on nodulation and interstrain competitiveness in relation to tannin concentrations in seeds and roots of Phaseolus vulgaris. Soil Biol Biochem 25(6):715-721. WORD  PDF

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Tewari, S.THE RELATUION BETWEEN MODE OF LEGUME NITROGEN NUTRITON, YIELD DETERMINANTS AND N ASSIMILATION EFFICIENCY. WORD  PDF  HTML

Thies, J. MODELING ECOLOGICAL DETERMINANTS OF THE SYMBIOTIC PERFORMANCE OF INTRODUCED RHIZOBIA IN TROPICAL SOILS. WORD  PDF  HTML