Effects of rainfall on the use of foliar analysis for diagnosing boron toxicity in field-grown wheat

The effect of rain on foliage elemental composition, especially B, was assessed using samples of wheat collected at three harvests from a field trial conducted in soil containing excessive levels of B. Moderate rainfall substantially decreased both the B concentration and content of whole shoots and...

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Veröffentlicht in:Plant and soil 1992-02, Vol.140 (2), p.311-314
Hauptverfasser: Nable, R.O. (Division of Soils CSIRO, Glen Osmond, SA (Australia)), Moody, D.B
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Sprache:eng
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Zusammenfassung:The effect of rain on foliage elemental composition, especially B, was assessed using samples of wheat collected at three harvests from a field trial conducted in soil containing excessive levels of B. Moderate rainfall substantially decreased both the B concentration and content of whole shoots and young leaves. The change in B concentration due to rain suggests that foliar analysis is unreliable for diagnosing B toxicity. For the other elements examined (Ca, Cu, Mg, Mn, Mg, P, S, Zn), rainfall had little effect.
ISSN:0032-079X
1573-5036
DOI:10.1007/BF00010608