February 2017

Estimates of combining ability and heritability in cowpea genotypes under drought stress and non-stress conditions in Uganda

Cowpea is an important source of food and income for small scale farmers in Uganda. Production is, however, affected by both biotic and abiotic stresses. Drought stress has recently emerged as a serious concern due to the effects of climate change. This study was therefore undertaken to estimate the general and specific combining ability effects of parents and crosses as well as estimate the heritability of delayed leaf...

Author(s): Saul Eric Mwale, Mildred Ochwo Ssemakula, Kassim Sadik, Boris Alladassi, Patrick Rubaihayo, Paul Gibson, Wales Singini and Richard Edema

February 2017

Induction of flowering in cassava through grafting

Flowering in cassava is related to branching. Erect plant architecture is usually preferred by farmers but results in late and scarce flowering, which slows down breeding and genetic studies. The objective of this study was to induce earlier and more abundant flowering, which have become key research needs for cassava. Six non- or late-flowering genotypes were selected for grafting on a profuse, early flowering...

Author(s): H. Ceballos, J. J. Jaramillo, S. Salazar, L. M. Pineda, F. Calle and T. Setter