About the RUFORUM 2010 Biennal Conference
"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 stakeholders 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 Plant Breeding"
Genetic effects of inbreeding on harvest index and root dry matter content in cassava
Abstract:
Inbreeding of predominantly cross-pollinating crops is expected
to result in progeny with reduced fitness and or improved
phenotypes. The effects of inbreeding in cassava are not well
quantified. Accordingly, in this exploratory study, S1 progeny
from six cassava genotypes were examined for two agronomic
traits harvest index (HI) and root dry matter content (DMC).
With introduction of inbreeding, an average HI reduction of
36% was recorded when six non-inbred parents were compared
to the S1 progeny. Similarly, an average DMC reduction of 13.2%
was observed with cassava inbreeding. Thus, with inbreeding,
highest reduction was observed in HI as compared to DMC.
L’endogamie des cultures principalement à pollinisation croisée
est attendue pour avoir pour résultat la descendance avec la
forme physique réduite et / ou des phénotypes améliorés. Les
effets de l’endogamie dans le manioc ne sont pas bien
quantifiées. Par conséquent, dans cette étude exploratoire, les
descendances S1 de six génotypes de manioc ont été examinées
pour l’’indice de récolte (HI) de deux traits agronomiques et
teneur en matière sèche (DMC) de la racine. Avec l’introduction
de l’endogamie, une réduction moyenne de 36% de HI a été
enregistrée alors que six parents non consanguins ont été
comparés à la descendance S1. De même, une réduction
moyenne de 13,2% de DMC a été observée avec la
consanguinité du manioc. Ainsi, avec l’endogamie, la plus forte
baisse a été observée dans l’indice de récolte HI par rapport à
la teneur en matière sèche.
Language:
English
Date of publication:
2010
Region Focus:
Africa Wide
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:
377-381
Notes:
