Incidence of sorghum downy mildew in relation to date of sowing in Botswana / P. Dishipi

Public ISBD Accompagne Drought-tolerant crops for Southern Africa Titre : Incidence of sorghum downy mildew in relation to date of sowing in Botswana Type de document : texte imprimé Auteurs : P. Dishipi, Auteur Editeur : ICRISAT Année de publication : 1996 Importance : p 181-183 Langues : Anglais (eng) Catégories : SCIENCES AGRICOLES Mots-clés : BOTSWANA  SORGHO Résumé : The disease incidence due to downy mildew of sorghum induced by Peronosclerspora sorghi in relation to time of sowing for 1993/94 was assessed in the epidemic area of Pandamatenga in Botswana. Fields of sorghum with different downy mildew incidences were obtained by evaluating crops sown at three different dates: Dec, Jan and Feb. The percentage disease incidence was inversely proportional to the sowing date. There was a highly significant negative correlation between percentage of downy mildew incidence and date of sowing. Late-sown crops had a high percentage incidence of sorghum downy mildew disease. Numéro du document : A 10433/F00 132 Niveau Bibliographique : 2 Bull1 (Theme principale) : SCIENCES ET PRODUCTION VEGETALES Bull2 (Theme secondaire) : SYSTEMES ET MODES DE CULTURE Accompagne Drought-tolerant crops for Southern Africa Incidence of sorghum downy mildew in relation to date of sowing in Botswana [texte imprimé] / P. Dishipi, Auteur . - ICRISAT, 1996 . - p 181-183. Langues : Anglais (eng) Catégories : SCIENCES AGRICOLES Mots-clés : BOTSWANA  SORGHO Résumé : The disease incidence due to downy mildew of sorghum induced by Peronosclerspora sorghi in relation to time of sowing for 1993/94 was assessed in the epidemic area of Pandamatenga in Botswana. Fields of sorghum with different downy mildew incidences were obtained by evaluating crops sown at three different dates: Dec, Jan and Feb. The percentage disease incidence was inversely proportional to the sowing date. There was a highly significant negative correlation between percentage of downy mildew incidence and date of sowing. Late-sown crops had a high percentage incidence of sorghum downy mildew disease. Numéro du document : A 10433/F00 132 Niveau Bibliographique : 2 Bull1 (Theme principale) : SCIENCES ET PRODUCTION VEGETALES Bull2 (Theme secondaire) : SYSTEMES ET MODES DE CULTURE

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