Vesicular Arbuscular Mycorrhizae-Mediated Uptake and Thanslocation of P and Zn by Wheat in Calcareous SoilEnglish Full Text
TU SHIHUA( Soil and Fertilizer Institute, Sichuan Academy of Agricultural Sciences, Chengdu 610066 (China)) T. B. GOH and M. R. BANERJEE(Department Of Soil Science, Universitg of Manitoba, Winnipeg, Manitoba, R3T 2N2 (Canada))
Abstract: Vesicular-arbuscular mycorrhizal (VAM) fungi have been credited with improving the groWth and mineral nutrition of many host plants but these effects are moderated by soil factors and nutrient balance. The combined effects of VAM, Zn and P application on the growth and translocation of nutrients in wheat were investigated using a calcareous soil marginal in P and Zn concentrations. Wheat was grown in a growth chamber under various combinations of VAM, P and Zn with measurements done at heading stage and maturity.Vegetative dry matter accumulation was increased by P application and reduced by VAM treatments. Both P and VAM increased grain yield. Zinc concentration and uptake were generally reduced by P addition and VAM infection. There were no antagonistic effects of Zn on P acquisition in the plant. The role of VAM in enhancing the translocation of Zn and P from root to grain would be beneficial to seed setting and yield.
Keywords:
calcareous soil; nutrient acquisition; P and Zn fertilization; translocation; vesiculararbuscular mycorrhizae;
- Series:
(D) Agriculture
- Subject:
Fundamental Science of Agriculture; Agronomy
- Classification Code:
S154
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