July 2017

Urban and peri-urban crop farming in Central Uganda: Characteristics, constraints and opportunities for household food security and income

Urban and peri-urban farming has a potential to address challenges related to food insecurity among city and town dwellers. It provides the urban population with food, nutrition and a source of income and employment, thus reducing on poverty and food scarcity. It has the advantage of proximity to urban markets which saves on transportation costs, thereby increasing farmers’ profitability. This study was carried...

Author(s): Mugisa, I. O., Fungo, B., Adur, S. O., Ssemalulu, O., Molly, A., Atim, J., Nakyagaba, W., Kizza, T., Kabanyoro, R.,  Sseruwu, G. and Akello, B. O.

July 2017

Effect of different rate of nitrogen fertilizer on the growth and yield of cabbage (Brassica Oleraceae) at Debre Markos, North West Ethiopia

A research was conducted at Debre Markos, North West Ethiopia in 2015. The objective of the study was to evaluate different rate of nitrogen fertilizer on growth and yield of cabbage. The experment was laidout in randomized complete block design with four treatments and three replication. Nitrogen fertilizer have no significant effect on plant height and number of outer leaves, while leaf length, leaf width, head...

Author(s): Yebirzaf Yeshiwas

July 2017

Genotype × environment interactions for grain yield in rice under no drought and drought conditions

Environments in sub-Saharan Africa fluctuate considerably across sites and seasons. This suggests the importance of assessing genotype x environment interaction (GEI) in cultivar development. The objective of this study was to estimate the magnitude of GEI for rice grain yield and identify high yielding and stable rice genotypes. Fifty six genotypes including 45 F3 rice populations, their 10 parents and one check were...

Author(s): Ruth N. Musila, Julia Sibiya, John Derera, John M. Kimani and Pangirayi Tongoona

July 2017

Flowers of the intertidal seagrass Halophila stipulacea (Forsskål) Ascherson: A new record from tropical coast of Tanzania, Indo-Pacific

Flowers of the seagrass Halophila stipulacea (Forsskål) Ascherson in Tanzania are currently unreported. The present study was conducted along the coast of Tanzania, Indo-Pacific, Kunduchi intertidal mudflats. Transplanted cuttings from Kunduchi intertidal mudflats were successfully grown in sand-mud substrate in the growth chamber in a 12 h photoperiod (1,250 µmol photons m-2s-1) and an inductive...

Author(s): Moses Joel Shimba, and Fredrick Ekow Jonah

July 2017

The suppression of Arabidopsis succinic semialdehyde dehydrogenase (SSADH) phenotype by using ethyl methane-sulfonate mutagenesis (EMS)

The disruption of the succinic semialdehyde dehydrogenase (SSADH) function in Arabidopsis leads to aberrant growth phenotype. In human, the SSADH malfunction leads to a condition known as γ-hydroxybutyrate (GHB) aciduria. It is characterized by the accumulation of GHB as well as abnormal growth. GHB aciduria is treated pharmacologically with compounds analogous to gamma-aminubutyrate (GABA). One of these compounds...

Author(s): Dereje W. Mekonnen, and Frank Ludewig,

July 2017

GGE biplot analysis of genotypes by environment interaction on Sorghum bicolor L. (Moench) in Zimbabwe

The genotype by environment interaction (GEI) reduces the success of genotype selection and recommendations by breeders, thus slowing down the progress of plant breeding. The understanding of genotype by environment interaction (GEI) multi-locational yield trials (MLYT) enables researchers to identify locations which are efficient in distinguishing tested genotypes, which are ideal across the test-locations as well as...

Author(s): Mare, M., Manjeru, P., Ncube, B. and Sisito, G.