Abstract:
Thirteen potato genotypes known as population B3C2 were
evaluated for yield and resistance to late blight. Assessment of
late blight severity started at the onset of the disease symptoms;
disease severity rating was based on visual symptoms, using a
1-9 CIP scale and percentage leaf area affected. Two genotypes
(391046.14 and 396031.119) showed higher levels of
susceptibility to late blight than Victoria, while two others
(396026.103 and 393280.82) showed higher resistance than
Cruza. Four genotypes, i.e., 396026.103 (38.6 t ha-1),
396031.108 (38.5 t ha-1), 396029.250 (34.5 t ha-1), 396038.107
(31.3 t ha-1) yielded higher than Victoria (61.5t ha-1), the main
commercial cultivar in Uganda.
Treize génotypes de pomme de terre connus sous le nom de
population B3C2 étaient évalués sur place pour le rendement et
la résistance à la rouille retardée. L’évaluation de la sévérité
de la rouille retardée a commencé au début des symptômes de
la maladie ; l’estimation de sévérité de la maladie a été basée
sur des symptômes visuels, en utilisant une balance 1-9 CIP et
la région de la feuille la plus affectée. Deux génotypes
(391046.14 et 396031.119) ont montré des niveaux plus élevés
de sensibilité à la rouille retardée que Victoria, alors que deux
autres (396026.103 et 393280.82) montraient une résistance
plus élevée que Cruza, la reférence de résistance. Quatre
génotypes, c.-à-d. 396031.108 (83.4 t ha-1), 396026.103 (80.1 t
ha-1), 396029.250 (75.5 t ha-1) et 396038.107 (75.1 t ha-1) ont
eu un plus grand rendement que Victoria (61.5t ha-1), le cultivar
commercial principal en Ouganda.
Language:
English
Date of publication:
2010
Country:
Region Focus:
East Africa
University/affiliation:
Collection:
RUFORUM Conferences and Workshops
Agris Subject Categories:
Agrovoc terms:
Additional keywords:
Licence conditions:
Open Access
Access restriction:
Form:
Printed resource
Publisher:
ISSN:
E_ISSN:
Edition:
Extent:
133-137
Notes:
"The 2010 RUFORUM Biennial Conference was the second in the series. The main objective of the Biennial conferences is to provide a platform for agricultural research for development stakeholders in Africa and beyond to actively exchange findings and experiences, while at the same time learning lessons towards improving performance of the agricultural sector and ultimately people’s livelihoods. The biennial conference is RUFORUM’s most comprehensive meeting for the diversity of stakeholers in agriculture. It is especially dedicated to graduate students and their supervisors, grantees in RUFORUM member universities and alumni. It is a platform for peer review, quality control, mentorship, networking and shared learning. This record contains an extended abstract accepted under the theme of agronomy".
