Now showing items 21-30 of 476
Data collection, site selection and farmer participation in on-farm experimentation
This paper contains suggestions for improving data collection during on-farm experimentation. Besides providing agronomic data, the experimental phase of on-farm research can be a source of other valuable information. ...
Recommendation domains: a framework for on-farm research
This paper provides a thorough examination of the concept of; the recommendation domain. It outlines the use of the concept in different stages of on-farm research, pro; vides examples of recommendation domains as used in ...
Exercises in the economic analysis of agronomic data
This publication consists of sixteen exercises which are used in teaching the economic analysis of on-farm experimentation CIMMYT trainees. The exercises focus on the construction of partial budgets and the techniques of ...
Modeling extremes of wheat and maize crop performance in the tropics
In a workshop sponsored by the Natural Resources Group (NRG) of the International Maize and Wheat Improvement Center (CIMMYT), scientists from the USA, Canada, South Africa and CIMMYT gathered at CIMMYT headquarters during ...
Farmer plant breeding from a biological perspective: implications for collaborative plant breeding
Plant breeding by research has become increasingly isolated from the plant breeding of farmers. Collaborative plant breeding (CPB) offers the possibility of bringing these two plant breeding traditions together to increase ...
Using economics to explain spatial diversity in a wheat crop: examples from Australia and China
Spatial diversity indicators may serve an important function for policymakers as they seek to manage crop genetic diversity and potential externalities associated with diffusion of some types of genetically improved crops. ...
International collaboration in crop improvement research: current status and future prospects
Investments over the past 35 years have created s system of national and international research centers that has revolutionized the supply of improved cereal varieties to developing country farmers. The newly created ...
Continuous economic analysis of crop response to fertilizer in on-farm research
This paper proposes a method for building general models based on continuous analysis of data from on-farm research (OFR) in order to derive recommendations for farmers. The data requirements are not excessive for practitioners ...
Breeding Quality Protein Maize: protocols for developing QPM cultivars
This manual is intended for maize breeders who would like to start developing quality protein maize (QPM) cultivars. It is a compilation and consolidation of several breeding protocols successfully used at CIMMYT over two ...
Maize nutrition quality and plant tissue analysis laboratory: laboratory protocols 2008
Biochemical and chemical analysis of seeds and green plant tissues are essential in several breeding programs including nutritional and industrial enhancement, plant physiology, and plant pathology. The objective of CIMMYT’s ...