Determinants Of Adoption And Spatial Diversity Of Wheat Varieties On Household Farms In Turkey

Based on twenty years of global research, this is the first comprehensive reference on crop genetic diversity as it is maintained on farmland around the world. Showcasing the findings of seven experts representing the field of ecology, crop breeding, genetics, anthropology, economics, and policy, this invaluable resource places farmer-managed crop biodiversity squarely in the center of the science needed to feed the world and restore health to our productive landscapes. It will prove to be an essential tool in the training of agricultural and environmental scientists seeking the solutions necessary to ensure healthy, resilient ecosystems for future generations.--

This paper investigates the relationship between adoption of modern rice varieties and rice varietal diversity on household farms in Bangladesh. As shown in previous studies, adoption of modern varieties depends on agroecological- and input-related factors, including the availability and use of irrigation facilities, such as tubewells. Having irrigation affects the diversity index significantly and positively, which could be due to the diffusion of more modern varieties (MVs) in areas where irrigation is available and accessible.

This book examines the challenges faced by farmers trying to maintain crop biodiversity in developing and transitional economies. Using a collection of empirical case studies of farmers and crop scientists across a range of agricultural economies and income levels, it presents economic tools and methods for valuing and managing crop biodiversity. It discusses the economic benefits of crop biodiversity for farmers and suggests ways in which crop biodiversity can be supported by national policies. The book provides an indispensable 'tool kit' for all those concerned with the development of strategies to facilitate sustainable management and conservation of crop genetic diversity for future generations.

Research Paper (postgraduate) from the year 2018 in the subject Agrarian Studies, grade: 4, , language: English, abstract: The main objective of this study is to identify factors affecting adoption of high yielding wheat varieties in Mao-Komo district of Benishangul-Gumuz, Ethiopia. Adoption of high yielding wheat varieties is one of the measures presumed to enhance wheat yield in Ethiopia. However, there are several socio-economic and institutional factors that limit the adoption of high yielding wheat varieties. Wheat is one of the major cereals of choice in Ethiopia, dominating food habits and dietary practices, and is known to be a major source of energy and protein in the country. The utilization of wheat has increased due to the growing urbanization and the expansion of agro-industries used as raw material, and also considered to attain food security in Ethiopia. It is also used for traditional foods and the straw is used for animal feed and thatching of roofs. To feed the rapidly growing population and meet the high demand of wheat in the country, it needs to increase the production and yield of wheat. However, increasing yield requires successful adoption of improved agricultural technologies. The present study uses cross-sectional data collected from sample of 174 farm households selected through two-stage stratified random sampling techniques. Descriptive statistics and econometric models are used to analyze the data. Probit model is employed for adoption analyze of high yielding wheat varieties. The probit model result depicts that land holding size, tropical livestock unit, access to agricultural information, frequency of extension contacts, off-farm income, and perception of farmers toward attributes of high yielding wheat varieties affect the likelihood of adoption of high yielding wheat varieties positively and significantly. But sex of household heads and affiliation to organizations has negative and significant effects on the likelihood of adoption of high yielding wheat varieties. The findings suggest that the government and stakeholders should need to focus on improving farm land and livestock productivity, strengthening frequency of extension visits, encouraging participation in off-farm activities, creating reliable information and awareness towards farmers’ perceptions in the area. Finally, further support of high yielding wheat varieties adoption should be given due attention for smallholders.

Landraces possess a very large genetic base in population structure and are dynamic populations of cultivated plants with historical origin, distinct identity, and without any formal crop improvement. They are often genetically diverse, locally adapted, and associated with traditional farming systems. Resistance genes to biotic and abiotic stress factors, which are especially diversified in landraces, are of great interest to plant breeders, faced with global climate challenge. In addition, gene pools made of different landraces grown in different ecological conditions can be used for wheat breeding to enhance quality; yield and other desirable agricultural parameters. An estimated 75% of the genetic diversity of crop plants was lost in the last century due to the replacement of high yielding modern varieties. There is, thus, an urgent need to preserve existing species, not only for posterity but also as a means to secure food supply for a rising world population. In this book, we provide an overview of wheat landraces with special attention to genetic diversities, conservation, and utilization.