Dry Matter Yield Stability Analysis of Maize Genotypes Grown in Al Toxic and Optimum Controlled Environments.

Breeding for Al tolerance is the most sustainable strategy to reduce yield losses caused by Al toxicity in plants. The use of rapid, cheap and reliable testing methods and environments enables breeders to make quick selection decisions. The objectives of this study were to (i) identify high dry matter yielding and stable quality protein maize (QPM) lines grown under Al toxic and optimum conditions and (ii) compare the discriminating power of laboratory- and greenhouse-based testing environments.

Determinants of genetically modified (GM) maize adoption and the intensity of adoption in OR Tambo District Municipality, Eastern Cape Province, South Africa.

The objective of the study was to establish the factors that have significant correlation with the increase in adoption and intensity of adoption of genetically modified (GM) maize varieties. The study utilized a cross-sectional, descriptive and quantitative survey of smallholder dry maize producers. Multiple purposive sampling was utilized in the selection of 704 respondents and semi-structured interviews and pre-coded questionnaires were adopted as data collection instruments.