Genetic effects of inbreeding on harvest index and root dry matter content in cassava
Abstract
101 words
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.
Subjects
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