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multilingual compendium of plant diseases

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18<br />

Avena sativa (Hor-deum vulgare, Triticum spp.) + Helminthosporium sativum Pam., King &<br />

Bakke (Cochliobolus sativus (Ito & Kurib. ) Drechsl. ex Dastur) =<br />

ENGLISH Seedling Blight, Root Rot, Foot Rot<br />

FRENCH Pourriture des Racines<br />

SPANISH Tiz6n de las pldntulas; podredumbre de la rafz, podredumbre del pi6<br />

PORTUGUESE<br />

ITALIAN<br />

RUSSIAN rHmnL xopegi reLMXHTooCnopRo,3HaH<br />

SCANDINAV IAN<br />

GERMAN Helminthosporium-Wur zelfaule<br />

DUTCH<br />

HUNGARIAN<br />

BULGARIAN<br />

TURKISH<br />

ARABIC<br />

PERSIAN<br />

BURMESE<br />

THAI<br />

NEPALI<br />

HINDI<br />

VIETNAMESE<br />

CHINESE<br />

JAPANESE<br />

Chocolate-brown to black spots appear near the soil line on the sheathes that cover<br />

ling leaves.<br />

the seed­<br />

Infections may progress until the seedlings turn yellow and die either before or,<br />

more frequently, after emergence and thus reduce stands. Affected seedlings<br />

and<br />

may<br />

produce<br />

be dwarfed<br />

dark green leaves. Seedlings commonly have weakened, dark brown rotted crowns<br />

and roots. When seedling infections are severe, <strong>plant</strong>s may be dwarfed, heads may not emerge<br />

and kernels are poorly filled.<br />

Maculas de color de chocolate o nigre se manifesta presso le terreno super le vaginas que<br />

coperi le folios del <strong>plant</strong>as juvene. Infectiones pote avantiar se de maniera que le <strong>plant</strong>ulas<br />

deveni jalne e mori o ante o, plus frequentemente, post emergentia, causante un diminution<br />

del <strong>plant</strong>ation. Plantas afflicte pote esser obstructe in lor crescimento e pote producer folios<br />

verde obscur. Generalmente, <strong>plant</strong>as juvene monstra pedes del stirpes e radices infirme, putrefacte,<br />

e brun obscur. Quando le <strong>plant</strong>ulas es afflicte per infectiones sever, le <strong>plant</strong>as matur<br />

es a vices nanos, partes capital frequentemente non emerge, e granos es minus replete que normalmente.<br />

Des taches brun chocolat h noires apparaissent au ras du sol sur les gaines qui recouvrent<br />

feuilles<br />

les<br />

des <strong>plant</strong>ules. L'infection peut se propagcr usqu'h ce que les <strong>plant</strong>ules jaunissent<br />

meurent,<br />

et<br />

soit avant, ou plus fr~quement, aprbs l'nm :gence, et ainsi r~duire les peuplements.<br />

Les <strong>plant</strong>ules infectdes peuvent rester naines et former des feuilles vert fonc4.<br />

ont<br />

Les<br />

commun6ment<br />

<strong>plant</strong>ules<br />

des couronnes et des racines affaiblies, atteintes d'une pourriture brun fonc4.<br />

Lorsque l'infection des <strong>plant</strong>ules est grave, les <strong>plant</strong>es peuvent rester naines, les t6tes ne pas<br />

se montrer, et les grains sont pauvrement pourvus.<br />

Manchas de color cafd-chocolate a negras aparecen cerca de la superficie del suelo sobre la envoltura<br />

que cubrelas hojas de la pl~ntula. Las infecciones pueden progresar hasta que las <strong>plant</strong>itas<br />

se vuelven amarillas y mueren, ya sea antes o mds frecuentemente despu~s de la emergecia,<br />

reduciendo asf la poblaci6n. Las <strong>plant</strong>itas afectadas pueden achappararse y producir hojas de color<br />

verde obscuro. Las <strong>plant</strong>itas generalmente tienen coronas y raices debilitadas, de color caf6 obscuro<br />

y podridas. Cuando la infecci6n de las pldntulas es severa 6stas pueden achapparrarse, las<br />

espigas pueden no emerger y los granos estin pobremente llenos.<br />

DISTRIBUTION: Af., A., Aust., Eur., N. A., C. A., S. A.

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