April 2013

Performance of nine cassava (Manihot esculanta Crantz) clones across three environments

    The study was carried out to quantify the genotype × environment interaction (G × E) and to estimate the phenotypic stability by genotype genotype × environment (GGE) biplot of nine cassava clones comprising 5 hybrids, 3 parent checks and 1 improved variety. The study was planted across three different environments; Fumesua, Pokuase and Ejura...

Author(s):     Peprah Bright Boakye, Ofori Kwadwo, Asante Isaac K. and Elizabeth Yaa Parkes,

April 2013

Yield parameters and stabilty of soybean [Glycine max. (L.) merril] as influenced by phosphorus fertilizer rates in two ultisols

    A field study was conducted for two years to assess the spatial and temporal effect of Phosphorus fertilizer on the yield, yield components and yield stability of five soybean genotypes in Umudike and Amakama in eastern Nigeria. The study was laid out as a split-plot in a randomized complete block with three replications. P rates of 0, 10, 20, 30 and 40 kg P/ha...

Author(s): Ikeogu U. N. and Nwofia G. E.

April 2013

WAB-450: A valuable donor of earliness and productivity traits for rice breeding programme under rainfed upland ecosystem

    This study focused on evaluation of introgressed population for earliness in flowering and productivity under rainfed upland rice ecosystem. The population was derived from inter-varietal cross between early maturing Africa upland land rice WAB-450, an inter-specific derivative as donor and Swarna, a mega rice variety from India, as recurrent parent. One hundred and...

Author(s):     Sangodele Emmanuel A., Hanchinal R. R., Hanamaratti N. G., Vinay Shenoy, Nadaf H. L. and Mohan Kumar V.