Datasets

CIMMYT Ethiopia

Replication Data for: Mexico's maize seed production and sales, 2011-2019

This dataset contains variety-level seed production and sales data of 297 public and private maize seed producers in Mexico during the period 2011-2019. The dataset was compiled using four different sources. The first is the MasAgro seed marketing survey, administered from 2013 to 2019 to MasAgro affiliated seed companies to monitor their seed sales and the uptake of new MasAgro hybrids. The number of companies that responded to the seed marketing survey each year was: 2013 (n=29), 2014 (n=24), 2015 (n=39), 2016 (n=42), 2017 (n=42), 2018 (n=52), 2019 (n=61). The second is the CIMMYT germplasm impact survey, a cross-sectional survey applied to thirty-nine MasAgro seed companies in 2015, to collect information of their 2014 seed sales, seed origin, variety type, variety colour, and first year of introduction to the market. The third is the MasAgro product portfolio survey, responded by thirty-one MasAgro seed firms in 2020 to cover existing information gaps, specially the 2011-2012 seed sales, company size (seed sales and number of employees) and each product’s first year of introduction to the market. All surveys were handled via e-mail by the MasAgro maize direction in the CIMMYT Global Maize Program. However, to protect the confidentiality of seed companies, all personal and commercial information on private companies collected through email surveys was made confidential. These data were complemented with official maize seed production statistics provided by the National Seed Inspection and Certification Agency (SNICS). The final dataset contains detailed seed production and sales figures of the entire maize seed industry in Mexico for the period 2011-2019.

• agricultural-research
• agricultural-sciences
• dataset
• hybrid-maize
• +6 more

CIMMYT Ethiopia

Replication Data for: MasAgro maize seed evaluation network yield data, 2011-2019

Every year, the MasAgro maize component of the Sustainable Modernization of Traditional Agriculture project (MasAgro) established a seed evaluation network in the three mega-environments of maize production in Mexico (Subtropic, Tropic and Highlands) to evaluate all materials developed by CIMMYT breeders for MasAgro, and assess their performance vis-à-vis public and private materials under development or readily available in the market. This dataset contains grain yield (GY) information (N=897) of subtropical, tropical and highlands’ white (n=582) and yellow (n=315) hybrids evaluated from 2011 to 2019. Yield data were previously processed and analyzed by CIMMYT's Subtropical, Tropical and Highlands maize breeding programmes. Open-pollinated varieties (OPVs) were excluded to compare GY of only hybrids. Hybrids were classified into five categories based on the entity responsible for their development or the proprietary holder. These categories are: CIMMYT MasAgro (hybrids developed by CIMMYT for MasAgro, Public (hybrids developed by public NARS), Private national (hybrids developed by national companies using proprietary germplasm); and Multinational (hybrids developed by multinational companies). The dataset is used to compare GY of MasAgro, public, private national and multinational hybrids across all years (2011-2019), for each colour – yellow and white maize – and mega-environment – subtropic, tropics and highlands.To obtain a fair comparison between different hybrid categories, it is advisable to use the sub-dataset (n=341) containing GY of the top two white and two yellow hybrids evaluated in each mega-environment from 2011 to 2019. This is because only the top one or two commercial multinational checks were used in the MasAgro seed trials network each year.

CIMMYT Ethiopia

Using a Video-based Product Ranking Tool (VPRT) as a basis for maize market segmentation in Kenya and Uganda in 2022

The maize data was collected in 2022 from small-scale farmers in the districts of Mubende and Mityana in Uganda, and the counties of Kakamega and Bungoma in Kenya. The sample size consists of 2,422 small-scale farmers. Farmer profiling questions cover various topics, including: Socio-demographic Information: Variables such as gender, age, family size, and education. Farm Information: Details about farm size, crops grown, animals kept, input usage, and key income sources. Maize Farming Variables: Aspects such as seed purchase, cropping system, seed volume, plot size, harvest volume, and usage. The data also includes the process of identifying and selecting preferred maize seed varieties, presented in video format. For the video data collection, product descriptions were developed into videos featuring presentations by both a male and a female seed multiplicator. Each farmer was randomly shown three of the eight videos available, utilizing an incomplete block design. In total, 7,266 video presentations were made to the 2,422 farmers.