Inheritance of Tolerance to Intermittent Drought from Selected Potato (Solanum Tuberosum) Cultivars in South Western Uganda

Abstract: 
The study objective of this study is to characterise new potato clones for drought tolerance under Ugandan conditions. Study genotypes were subjected to three water stress levels and also crossed with susceptible, locally adopted varieties to estimate the combining ability of the tolerant genotypes. Results for yield and for indicators of drought tolerance showed greater tolerance to drought in the new clones than in the local varieties. Four of the promising clones were crossed with three of the varieties susceptible to drought to determine their combining ability for yield and drought related traits, and to generate segregating materials for further evaluation.
L’objectif de cette étude est de caractériser les nouveaux clones de pommes de terre pour la tolérance à la sécheresse dans des conditions ougandaises. Les génotypes de l’étude ont été soumis à trois niveaux de stress hydrique et aussi croisés avec des variétés sensibles, adoptés localement pour estimer l’aptitude de combinaison des génotypes tolérants. Les résultats pour le rendement et pour les indicateurs de la tolérance à la sécheresse ont montré une plus grande tolérance à la sécheresse dans les nouveaux clones que dans les variétés locales. Quatre des clones prometteurs ont été croisés avec trois des variétés sensibles à la sécheresse afin de déterminer leur aptitude à la combinaison des caractères de rendement et ceux se rapportant à la sécheresse, et de générer des matériaux compartimentés pour une évaluation ultérieure.
Language: 
Extended abstracts submitted under Crop Improvement
Date of publication: 
2012
Country: 
Region Focus: 
East Africa
Collection: 
RUFORUM Conferences and Workshops
Agris Subject Categories: 
Licence conditions: 
Open Access
Access restriction: 
Form: 
Printed resource
Publisher: 
Notes: 

The 2012 RUFORUM Biennial Conference is the third 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. The third Biennial Conference was attended by 657 participants.This record contains an extended abstract accepted under the theme of Crop Improvement