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GrainGenes Reference Report: JPN-24-1409

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Reference	JPN-24-1409
Title	Factors affecting arbuscular mycorrhizal dependency of wheat genotypes with different phosphorus efficiencies
Journal	Journal of Plant Nutrition
Year	2001
Volume	24
Pages	1409-1419
Author	Yao Q Li X Christie P
Abstract	Summary: 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
Keyword	beijing [ Show all 29 ]

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