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Yellow patches in oilseed rape crops

Yellow patches in oilseed rape crops Severe crown and root rot of four year old Hunter River transverse· septa. thin·walled, with obtuse ends, 78 - 114 lucerne was observed at Hermitage Research Station. near x 20 - 32 ~m, formed singly on long, pale brown conidio­ Warwick, in March 1972. Symptoms were typical of those phores 6 - lO/Jm in diameter which proliferate sympodial. lV_ described in California as Stagonospora root rot of lucerne Ill. The disease is distinguished by a reddish flecking in the The fungus is known from India. Japan. Africa and cortex and vascular tissue of infected crowns or roots. The Argentina; this appears to be the first report of its bark of the affected tissue is often fissured. As the crown occurrence in Australia. A culture has been deposited in the collection of the Commonwealth Mycological Institute rot progresses, older infected tissue becomes dark in colour (lMI 161743). with a dry rot. A fungus consistently isolated from these plants was J.L. Alcorn, identified as Sragonospora me/ilor; (Lasch) Pelrak. The Departmenl of Primary Indus\'ies, identifIcation was confIrmed by the Commonwealth lndooroapllly. ald. 4068 Mycological Institute lIMI 1656131. The fungus has been w. Pont more recently Isolated from lucerne plants from the Department http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Australasian Plant Pathology Springer Journals

Yellow patches in oilseed rape crops

Yellow patches in oilseed rape crops

Abstract

Severe crown and root rot of four year old Hunter River transverse· septa. thin·walled, with obtuse ends, 78 - 114 lucerne was observed at Hermitage Research Station. near x 20 - 32 ~m, formed singly on long, pale brown conidio­ Warwick, in March 1972. Symptoms were typical of those phores 6 - lO/Jm in diameter which proliferate sympodial. lV_ described in California as Stagonospora root rot of lucerne Ill. The disease is distinguished by a reddish flecking in the The fungus...
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Publisher
Springer Journals
Copyright
Copyright
Subject
Life Sciences; Plant Pathology; Plant Sciences; Agriculture; Entomology; Ecology
ISSN
0815-3191
eISSN
1448-6032
DOI
10.1071/APP9720030a
Publisher site
See Article on Publisher Site

Abstract

Severe crown and root rot of four year old Hunter River transverse· septa. thin·walled, with obtuse ends, 78 - 114 lucerne was observed at Hermitage Research Station. near x 20 - 32 ~m, formed singly on long, pale brown conidio­ Warwick, in March 1972. Symptoms were typical of those phores 6 - lO/Jm in diameter which proliferate sympodial. lV_ described in California as Stagonospora root rot of lucerne Ill. The disease is distinguished by a reddish flecking in the The fungus is known from India. Japan. Africa and cortex and vascular tissue of infected crowns or roots. The Argentina; this appears to be the first report of its bark of the affected tissue is often fissured. As the crown occurrence in Australia. A culture has been deposited in the collection of the Commonwealth Mycological Institute rot progresses, older infected tissue becomes dark in colour (lMI 161743). with a dry rot. A fungus consistently isolated from these plants was J.L. Alcorn, identified as Sragonospora me/ilor; (Lasch) Pelrak. The Departmenl of Primary Indus\'ies, identifIcation was confIrmed by the Commonwealth lndooroapllly. ald. 4068 Mycological Institute lIMI 1656131. The fungus has been w. Pont more recently Isolated from lucerne plants from the Department

Journal

Australasian Plant PathologySpringer Journals

Published: Jan 22, 2011

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