Heat tolerance is becoming increasingly important for maize grown in the spring season in India because heat stress can lead to devastating yield loss. The genotypic data provided in this dataset were used to carry out GWAS analyses on 662 doubled haploid lines to identify SNPs significantly associated with several traits under normal and heat stress...

These data describe the evaluation of landrace-derived pre-breeding materials for biotic and abiotic stress resistance as well as for blue maize production in 2018. Populations of interest for drought stress during flowering time, heat stress during flowering time, Tar Spot tolerance, and blue maize production were evaluated for yield potential and...

CIMMYT makes available to the public a set of maize inbred lines called CIMMYT Maize Genetic Resource Lines (CMGRL). The CMGRLs are derived from crosses between elite CIMMYT lines and landrace accessions, populations or synthetics from the CIMMYT Germplasm Bank. CMGRLs are intended to be used by breeders as sources of novel alleles for traits of economic...

In sub-Saharan Africa, maize is a staple crop but yields remain sub-optimal. A novel hybrid seed technology offers the opportunity to reduce seed production costs and increase yields. This dataset contains data from on-farm and on-station trials collected in 2017 to 2019 in South Africa, Kenya and Zimbabwe to assess this hybrid seed production technology....

Conservation agriculture (CA) is based on minimal tillage, permanent soil cover and crop diversification. The data in this study were collected in a field trial network established to adapt CA to Mexico’s diverse cropping systems and local conditions. Soil health was studied in 20 trials with maize (Zea mays L.) in acro-ecologies ranging from handplanted...

CIMMYT and its network of collaborators in Mexico, conducted a series of experiments across agroecological zones of Mexico in 2017 and 2018 to evaluate the effect of different storage technologies on postharvest losses of maize. Experiments were conducted under “controlled” (i.e., managed by researchers) and “non-controlled” conditions (i.e., on-farm...

Gray leaf spot (GLS) is a major maize foliar disease in sub-Saharan Africa that can substantially reduce yields for farmers. This dataset contains supporting phenotypic and genotypic data used in the analysis of the genetic architecture of GLS resistance in maize. The data in this paper relate to several different sets of germplasm: (1) The IMAS (Improved...

The study shows the database made from interviews conducted in Texcoco, Mexico during April, May and June 2019. The objective of the study was to understand consumer preferences and consumption and purchasing habits for white and blue maize tortillas.

The summary results of the Regional Trials for CIMMYT Maize Hybrids in Eastern Africa for 2016. The trials are: EHYB16 - Early/extra-early maturing elite pre-commercial hybrids regional trials, EIHYB16 – Early-intermediate maturing elite pre-commercial hybrids regional trial, IHYB16 (Set 1) – Intermediate maturing elite...

The summary results of the Regional Trials for CIMMYT Maize Hybrids in Eastern Africa for 2017. The trials include: EHYB17-Set I – Early/extra-early maturing elite pre-commercial hybrids regional trials (including external and internal checks); IHYB17-Set I – Intermediate maturing elite pre-commercial hybrids regional trial (including...

Performance trials (N=52) in two zones (West Shewa and Jimma) in Ethiopia. Trials comprise four nutrient management treatments, namely control with zero fertilizer; and three fertilizer recommendations to achieve the same target yield based on regional fertilizer recommendation, a Nutrient Expert (IPNI software) based recommendation and a soil-test NE...

This research study the genomic-enabled prediction accuracy of the composition of the following sparse testing allocation design: (1) all non-overlapping (0 overlapping) lines in environments, (2) all overlapping (0 non-overlapping) lines tested in all the environments, and (3) combinations of the two previous cases where certain numbers of...

An association-mapping panel (DTMA) and two DH populations (DH1 and DH2) were used in the current study, which in total includes 487 materials. The dataset includes three types of files. One is the genotype of 487 lines sequenced by GbS, named DTMA_DH2_DH3-955690.hmp.txt; one is the genotype of 487 lines sequenced by rAmpSeq named genotype-rAmpSeq.csv;...

The Zinc association mapping (ZAM) panel is a set of 923 elite inbred lines from the International Maize and Wheat Improvement Center (CIMMYT) biofortification breeding program. The panel represented wide genetic diversity for kernel Zn and is comprised of several lines with tolerance/resistance to an array of abiotic and biotic stresses commonly...

This study projected the consumption demand of a few major food items of Nepal. On average, 62% of the total daily dietary energy of a Nepalese comes solely from cereals. As the economy of Nepal is rapidly emerging, and given that 25% of the total population of Nepal is still poor, this study projects the aggregate consumption demand for rice, wheat,...

The Global Popcorn Project began in 2014, by asking the basic question: How many popcorn accessions do we have in the Maize Collection of the CIMMYT Maize and Wheat Germplasm Bank? Six years later, we are closing in on answering that basic question and have also moved on to more complicated ones, with the help of an international team of graduate students...

An experiment initiated in 1996 in the highlands of the state of San Luis Potosí, Mexico, evaluated different tillage methods and levels of soil cover under permanent raised beds for their effects on yield, profitability, and soil quality in an irrigated, summer maize- winter oats rotation. The experiment was located at the Experimental Station “San...

Nutrient Ommission Trials (NOTs) from three states in Nigeria. Six treatments, yield, soil and ear leaf nutrient contents.

TAMASA Agronomy Panel Survey 2016/17 Season. This file contains the maize grain yield from approximately 578 maize fields in the Southern Highlands, Northern and Eastern Zones of Tanzania in collected May-August 2017. Maize grain yield data can be linked to associated maize yield and soil by the common HHID.

Experiments at multiple locations in Tanzania (800 to 1500m) to calibrate development or phenology of maize varieties. Locations are Igeri, Minja, Mitalula, Mlaaleni, Monduli, Selian, Seatondale, Suluti, Uyole, W. Kilimanjaro. Observations include dates of emergence, tassel, silking and maturity; Daily min & max temperatures are in a separate file