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FACTORS AFFECTING ARBUSCULAR MYCORRHIZAL DEPENDENCY OF WHEAT GENOTYPES WITH DIFFERENT PHOSPHORUS EFFICIENCIES.
- Source :
-
Journal of Plant Nutrition . Sep2001, Vol. 24 Issue 9, p1409-1419. 11p. 6 Charts. - Publication Year :
- 2001
-
Abstract
- Three wheat (Triticum aestivum L.) genotypes with high, intermediate and low phosphorus (P) efficiency were grown in a pot experiment with low P supply and adequate P supply either inoculated with the arbuscular mycorrhizal fungus Glomus versiforme or uninoculated. The mycorrhizal dependency of the genotype with relatively high P efficiency was lower than that of the genotypes with lower P efficiencies. Linear correlation analysis revealed that mycorrhizal dependency was primarily controlled by P uptake efficiency. More carbohydrate was translocated to the roots of genotypes with low P efficiency than of those with high P efficiency. In a second pot experiment the same three genotypes were grown in low P soils. Higher hyphal length density arising from carbohydrate translocation led to more P uptake, and this may account for higher mycorrhizal dependency. [ABSTRACT FROM AUTHOR]
- Subjects :
- *WHEAT
*PHOSPHORUS
*FUNGI
Subjects
Details
- Language :
- English
- ISSN :
- 01904167
- Volume :
- 24
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Journal of Plant Nutrition
- Publication Type :
- Academic Journal
- Accession number :
- 8739255
- Full Text :
- https://doi.org/10.1081/PLN-100106991