CIMMYT Research Data & Software Repository Network
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20th High Temperature Wheat Yield Trial
No full textCIMMYT annually distributes improved germplasm developed by its researchers and partners in international nurseries trials and experiments. The High Temperature Wheat Yield Trial (HTWYT) is a replicated yield trial that contains spring bread wheat (Triticum aestivum) germplasm adapted to Mega-environment 1 (ME1) which represents high temperature areas
Maize experiment with increasing rates of nitrogen to develop a calibration for the GreenSeeker in Chiapas.
No full textThis experiments were established with different rates of nitrogen in order to generate a wide range of values for NDVI and grain yield in order to develop a calibration model for the GreenSeeker in Chiapas
Maize experiment with increasing rates of nitrogen to develop a calibration for the GreenSeeker in Jalisco.
No full textThis experiments were established with different rates of nitrogen in order to generate a wide range of values for NDVI and grain yield in order to develop a calibration model for the GreenSeeker in Jalisco
Maize experiment with increasing rates of nitrogen to develop a calibration for the GreenSeeker in Michoacan.
No full textThis experiments were established with different rates of nitrogen in order to generate a wide range of values for NDVI and grain yield in order to develop a calibration model for the GreenSeeker in Michoacán
Consumer study on acceptance and willingness to pay for instant cereal products with food-to-food fortification, using affective tests and experimental auctions, in Eldoret, Kenya
No full textIn this study 220 urban consumers of Eldoret were asked i) about socioeconomic characteristics and nutritional knowledge, ii) evaluate five flours with two preparations using affective tests, iii) to provide willingness-to-pay for the five flours using with experimental auctions. The data contain a set for each of the three objectives. The first data set contains ID number and socioeconomic information of the participants, with one line per person (N = 220). The second data set contains the results of the affective tests. Five flours were used in the affected test: sifted conventional maize flour, sifted mixed (maize and sorghum flour) conventional flour, instant sifted mixed flour, instant whole mixed flour, and instant sifted mixed flour with food-to-food fortification. From each of the flours, two products were prepared: ugali (stiff porridge) or uji (liquid porridge). All participants were asked to evaluate the 5 x 2 = 10 preparations on five traits: appearance, texture in hand, aroma, texture in mouth, taste, and overall. The results are presented in one line per participant per product (220 x 5 = 1100 lines), with the results for ugali and uji in different columns. The third data set contains the WTP, elicited through an experimental auction using BDM, for the five flours. Participants were split into three information treatments: A1: WTP without information, A2: repeat WTP now with information, B: information from the start, each with 110 participants, so in total 3 treatments x 110 x 5 products = 1650 observations
Survey of open-air drying operators in Kenya, 2018: Study of the technical and economic aspects of road-side maize drying
No full textThis file contains the data from a survey conducted with 122 respondents, found drying maize in open air along the roads in the towns and urban centers of major maize growing areas of Kenya (Bungoma, Trans Nzoia, Uasin Gishu and Nakuru) and Nairobi. Most of them were maize traders, but there were also some farmers and a few millers. They were interviewed on the technical aspects (drying methods, equipment and labor used, volumes handled and duration) and economic aspects (cost of buying and drying maize, buying and selling price) of their maize trading and drying practices. From each participant, two maize samples were taken at the different stages in the drying process (freshly purchased maize, maize in the process of drying, and completely dried maize ready to be shipped) and the moisture content measured
Data base of soil sample of Huanimaro and Celaya, Guanajuato.
No full textSoil sampling with 1x1 km grid in the agricultural area of the Huanimaro and Celaya Municipalities at at 0 to 30 cm depth
Results from rapid-cycle recurrent genomic selection in spring bread wheat
No full textEmpirical studies of early generation genomic selection strategies for parental selection or population improvement are still lacking in wheat and other major crops. We show the potential of rapid-cycle recurrent GS to increase genetic gain for grain yield in wheat. We show a consistent realized genetic gain for grain yield after three cycles of recombination of bi-parental F1’s, when summarized across two years of phenotyping
Short-term yield gains or long-term sustainability? A synthesis of conservation agriculture (CA) long-term experiments in Southern Africa
No full textGrain yield data collected from Conservation
Agriculture (CA) systems across experiments of varying experimental duration, established in trial locations of Malawi, Mozambique, Zambia, and Zimbabwe under an increasingly variable climate. Data contains different agro-environmental yield response moderators such as type of crop diversifcation and amount of rainfall and aims to identify cropping systems that may provide both short-term gains and longer-term sustainability
18th Karnal Bunt Screening Nursery
No full textThe Karnal Bunt Screening Nursery is a single replicate nursery that contains diverse spring bread wheat (Triticum aestivum) germplasm adapted to ME1 (Optimally irrigated, low rainfall environment) with total 50-100 entries and white/red grain color