June 2019

Association and variation on boll and seed morphology among hybrids between linseed (Linum usitatissimum L.) and Linum bienne Mill. and their parents

Linseed is the only cultivated species from the genus Linum and selection is the most frequently used method to develop varieties from the crop resulting in the reduction of the genetic diversity. Linum bienne Mill. is genetically more diverse than linseed and produces fertile hybrids with linseed. The author aimed for the development of hybrids with new combinations of genes useful for variety development programme....

Author(s): Worku Negash Mhiret  

June 2019

Adaptability and yield stability of bread wheat (Triticum aestivum) varieties studied using GGE-biplot analysis in the highland environments of South-western Ethiopia

The objectives of this study were to evaluate released Ethiopian bread wheat varieties for yield stability using the GGE biplot method and identify well adapted and high-yielding genotypes for the highland environments of South-western Ethiopia. Twenty five varieties were evaluated in a randomized complete block design with three replications at Dedo and Gomma during the main cropping season of 2016 and at Dedo,...

Author(s): Leta Tulu and Addishiwot Wondimu

June 2019

Determination of concentration of heavy metals in ginger using flame atomic absorption spectroscopy

Concentrations of four heavy metals (Ni, Zn, Cd and Pb) in two ginger varieties were determined using flame atomic absorption spectroscopy (FAAS) with wet acidic digestion methods. Results showed that the concentration of zinc is 0.86 to 1.17 mg/kg in Hargama and 0.63 to 0.87 mg/kg in Bolbo varieties. The concentration of nickel for Hargama and Bolbo are 0.15 to 0.18 and 0.17 to 0.21 mg/kg, respectively. Zinc...

Author(s): Kusse Gudishe Goroya, Zewde Mitiku and Yoseph Alresawum Asresahegn

June 2019

Genetic diversity, variability and characterization of the agro-morphological traits of Northern Ghana Roselle (Hibiscus sabdariffa var. altissima) accessions

Roselle (Hibiscus sabdariffa var. altissima), a bast fibre crop adapted to the warm climate of Northern Ghana, offers a great economic potential not yet explored for lack of information on its distribution, collection, and genetic diversity. Little variability is reported in exotic genotypes to merit trait improvement. The objective of this study is to investigate distribution and diversity in roselle of Northern Ghana....

Author(s): Antonia Y. Tetteh, Nii A. Ankrah, Nancy Coffie and Achana Niagiah