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Effect of barley-legume intercrop on disease frequency in an organic farming system

Kinane, Dr. J. and Lyngkjær, Dr. M. (2002) Effect of barley-legume intercrop on disease frequency in an organic farming system. Plant Protection Science, 38, pp. 227-231.

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Summary

The effect of barley-legume intercrop in an organic farming system on disease incidence was investigated. The legumes were lupin, faba bean and pea. Diseases were detected on pea and barley. On pea, only ascochyta blight (Ascochyta pisi) was observed. When either pea variety was intercropped with barley, the level of ascochyta blight was reduced. Net blotch (Pyrenophora teres), brown rust (Puccinia recondita) and powdery mildew (Blumeria graminis f. sp. hordei) (in order of incidence) were monitored on barley between flag leaf emergence and heading. The levels of all three diseases were reduced in every intercrop treatment compared to the barley monocrop. However, this reduction was only statistically significant in the pea treatments for net blotch.


EPrint Type:Journal paper
Keywords:Barley; lupin; faba bean; pea; legume; monocrop; intercrop; organic farming system; ascochyta blight; net blotch; brown rust; powdery mildew.
Subjects: Crop husbandry > Crop combinations and interactions
"Organics" in general
Crop husbandry > Production systems > Cereals, pulses and oilseeds
Research affiliation: Denmark > DARCOF II (2000-2005) > I. 5 (GENESIS) Production of grain legumes and cereals for animal feed
Deposited By: Kinane, Dr Julia Síle
ID Code:1536
Deposited On:07 Oct 2003
Last Modified:12 Apr 2010 07:28
Document Language:English
Status:Published
Refereed:Not peer-reviewed

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