Influence of mycorrhiza vs. soluble phosphate on growth, nodulation, and N2 fixation (15N) in alfalfa under different levels of water potential
作者： R. Azc�n , F. El-Atrach , J.M. Barea
DOI: 10.1007/BF00260728
关键词:
摘要: The legume Medicago sativa (+Rhizobium melilott) was grown under controlled conditions to study the interactions between soluble P in soil (four levels), or a mycorrhizal inoculum, and degree of water potential levels) relation plant development N2 fixation. 15N-labelled ammonium sulphate added each pot for qualitative estimate fixation, order rank effects different treatments. Dry-matter yield, nutrient content nodulation increased with amount plant-available soil, decreased as stress increased, P-level. effect on dry matter, N little affected by potential. Since uptake plants, additional mechanisms, other than those mediated P, must be involved activity. There positive correlation yield levels treatment at all levels. A high unlabelled atom% 15N excess also found P. In however, lower. This suggests that mycorrhiza supply plants sources addition derived from improvement
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sci-hub.se 参考文章(20)
J.M. Barea, C. Azcon-Aguilar, Mycorrhizas and their Significance in Nodulating Nitrogen-Fixing Plants Advances in Agronomy. ,vol. 36, pp. 1- 54 ,(1983) , 10.1016/S0065-2113(08)60351-X
J. R. Ellis, H. J. Larsen, M. G. Boosalis, Drought resistance of wheat plants inoculated with vesicular-arbuscular mycorrhizae Plant and Soil. ,vol. 86, pp. 369- 378 ,(1985) , 10.1007/BF02145457
S. Dakessian, M. S. Brown, G. J. Bethlenfalvay, Relationship of mycorrhizal growth enhancement and plant growth with soil water and texture Plant and Soil. ,vol. 94, pp. 439- 443 ,(1986) , 10.1007/BF02374337
R. Fiedler, G. Proksch, The determination of nitrogen-15 by emission and mass spectrometry in biochemical analysis: a review Analytica Chimica Acta. ,vol. 78, pp. 1- 62 ,(1975) , 10.1016/S0003-2670(01)84751-6
G. Hardarson, F. Zapata, S. K. A. Danso, Field evaluation of symbiotic nitrogen fixation by rhizobial strains using15N methodology Plant and Soil. ,vol. 82, pp. 369- 375 ,(1984) , 10.1007/BF02184274
D. S. Hayman, Mycorrhizae of nitrogen-fixing legumes MIRCEN Journal of Applied Microbiology and Biotechnology. ,vol. 2, pp. 121- 145 ,(1986) , 10.1007/BF00937189
J. I. Sprent, Nitrogen Fixation in a Sustainable Agriculture Biological Agriculture & Horticulture. ,vol. 3, pp. 153- 165 ,(1986) , 10.1080/01448765.1986.9754469
S.K.A. Danso, Review: estimation of N2-fixation by isotope dilution: an appraisal of techniques involving 15N enrichment and their application. Comments Soil Biology & Biochemistry. ,vol. 18, pp. 243- 244 ,(1986) , 10.1016/0038-0717(86)90055-6
J.M. Phillips, D.S. Hayman, Improved procedures for clearing roots and staining parasitic and vesicular-arbuscular mycorrhizal fungi for rapid assessment of infection Transactions of the British Mycological Society. ,vol. 55, pp. 158- IN18 ,(1970) , 10.1016/S0007-1536(70)80110-3
Phillip M. Chalk, Estimation of N2 fixation by isotope dilution: An appraisal of techniques involving 15N enrichment and their application Soil Biology and Biochemistry. ,vol. 17, pp. 389- 410 ,(1985) , 10.1016/0038-0717(85)90001-X