Now showing items 1-10 of 20
Statistical methods for dividing sites into recommendation domains on the basis of experimental results
The purpose of identifying recommendation domains; must be for making recommendations from current data and for planning and interpreting future experiments. In a general sense every applied scientist must have a concept ...
Maize production environments revisited: A GIS-based approach
This publication presents a GIS-based approach for revising the descriptions of global maize production environments, called "mega-environments" (MEs), used by CIMMYT and its partners. A cluster analysis was performed on ...
Choice of on-farm trial sites
The impact of sample selection strategies on genetic diversity and representativeness in germplasm bank collections
(BioMed Central, 2019)
Background: Germplasm banks maintain collections representing the most comprehensive catalogue of native genetic diversity available for crop improvement. Users of germplasm banks are interested in a fixed number of samples ...
Sample size under inverse negative binomial group testing for accuracy in parameter estimation
(Public Library of Science, 2012)
Background. The group testing method has been proposed for the detection and estimation of genetically modified plants (adventitious presence of unwanted transgenic plants, AP). For binary response variables (presence or ...
Aflatoxin in Maize: a proceedings of the workshop El Batan, Mexico, April 7-11, 1986
(UNDP; USAID; CIMMYT, 1987)
This proceedings includes papers delivered at the Aflatoxin Workshop held at CIMMYT in April, 1986. Contributed papers present background on the aflatoxin problem, studies of toxicoses, sampling and detection methods, ...
A note on multi-stage sampling with list frames: the PARC/CIMMYT survey of wheat harvest technology
(PARC; CIMMYT, 1987)
In collecting farm-level data for the purpose of initiating social science research on selected cropping systems, many researchers in Pakistan use random sampling of villages with nonprobability sampling of farmers within ...
Participatory rural appraisal of farmers' maize selection criteria and production constraints in the moist mid-altitude Zone of Kenya
(CIMMYT; KARI, 2002)
Maize is a staple food for most households in Kenya and is grown in almost all agroecological zones. The yield of maize has not kept up with the rate of population growth, leading to serious food insecurity. A major reason ...