Plant breeding has played a significant role in the development of human civilizations. Conventional plant breeding has significantly improved crop yield by genetically manipulating agronomically important traits. However, it has often been criticized for ignoring indigenous germplasm, failing to address the needs of the marginal and the poor farmers, and emphasizing selection for broad instead of local adaptation. Participatory plant breeding (PPB) is the process by which the producers and other stakeholders are actively involved in a plant-breeding programme, with opportunities to make decisions throughout. The Working Group on Participatory Plant Breeding (PPBwg) was established in 1996 under the framework of the Consultative Group on International Agricultural Research (CGIAR). Research in PPB can promote informed participation and trust in research among consumers and producers, and in recent years, PPB has had a significant impact on food production by quickly and cost-effectively producing improved crop varieties. At the same time, there has been significant research in the area. PPB offers significant advantages that are particularly relevant to developing countries where large investments in plant breeding have not led to increased production, especially in the marginal environments. In addition to the economic benefits, participatory research has a number of psychological, moral, and ethical benefits, which are the consequence of a progressive empowerment of the farming communities. PPB can empower groups such as women or less well-off farmers that are traditionally left out of the development process. This book explores the potential of PPB in the coming decades. The topic is more relevant since international breeding efforts for major crops are aimed at decentralizing local breeding methods to better incorporate the perspective of end users into the varietal development process. The first book incorporating the upcoming research on this novel breeding approach, it reviews the important tools and applications of PPB in an easy-to-read, succinct format, with illustrations to clarify these complex topics. It provides readers with a basic idea of participatory plant breeding as well as advances in the field and insights into the future to facilitate the successful integration of farmers into breeding programmes. This book is a valuable reference resource for agriculturists, agricultural advisers, policy makers, NGOs, post-doctoral students and scientists in agriculture, horticulture, forestry and botany.

Plant genetic resources provide a basis for food security, livelihood support and economic development as a major component of biodiversity. The Second Report on the State of the World’s Plant Genetic Resources for Food and Agriculture demonstrates the central role plant genetic diversity continues to play in shaping agriculture growth in the face of climate change and other environmental challenges. It is based on information gathered from Country Reports, regional syntheses, thematic studie s and scientific literature, documenting the major achievements made in this sector during the past decade and identifying the critical gaps and needs that should urgently be addressed. The Report provides the decision-makers with a technical basis for updating the Global Plan of Action on Conservation and Sustainable Use of Plant Genetic Resources for Food and Agriculture. It also aims to attract the attention of the global community to set priorities for the effective management of plant genet ic resources for the future. Purchase a print copy.

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 fields 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.

Describes how farmers manage, maintain, and benefit from biodiversity in agricultural production systems. Includes the most recent research and developments in the maintenance of local diversity at the genetic, species, and ecosystem levels.

This publication compiles the contributions of several authors who address the subject of gene flow from a science-based perspective and its implications for germplasm management.

A growing body of evidence shows that agricultural landscapes can be managed not only to produce crops but also to support biodiversity and promote ecosystem health. Innovative farmers and scientists, as well as indigenous land managers, are developing diverse types of “ecoagriculture” landscapes to generate cobenefits for production, biodiversity, and local people. Farming with Nature offers a synthesis of the state of knowledge of key topics in ecoagriculture. The book is a unique collaboration among renowned agricultural and ecological scientists, leading field conservationists, and farm and community leaders to synthesize knowledge and experience across sectors. The book examines: the knowledge base for ecoagriculture as well as barriers, gaps, and opportunities for developing improved ecoagriculture systems what we have learned about managing landscapes to achieve multiple objectives at a landscape scale existing incentives for farmers, other land managers, and investors to develop and invest in ecoagriculture systems pathways to develop, implement, manage, and scale up successful ecoagriculture Insights are drawn from around the world, in tropical, Mediterranean, and temperate environments, from farming systems that range from highly commercialized to semi-subsistence. Farming with Nature is an important new work that can serve as a foundation document for planners, farm organizations, researchers, project developers, and policy makers to develop strategies for promoting and sustaining ecoagriculture landscapes. Replete with valuable best practice guidelines, it is a critical resource for both practitioners and researchers in the field.

ELISA tests were conduced for APMoV, PLRV, PMTV, PVY and PVX.

Mycorrhizae are mutualisms between plants and fungi that evolved over 400 million years ago. This symbiotic relationship commenced with land invasion, and as new groups evolved, new organisms developed with varying adaptations to changing conditions. Based on the author's 50 years of knowledge and research, this book characterizes mycorrhizae through the most rapid global environmental changes in human history. It applies that knowledge in many different scenarios, from restoring strip mines in Wyoming and shifting agriculture in the Yucatán, to integrating mutualisms into science policy in California and Washington, D.C. Toggling between ecological theory and natural history of a widespread and long-lived symbiotic relationship, this interdisciplinary volume scales from structure-function and biochemistry to ecosystem dynamics and global change. This remarkable study is of interest to a wide range of students, researchers, and land-use managers.

It is an edited book with chapters written by multi-disciplinary specialists in their specific subject areas. It covers development of IPM components and packaging them for individual vegetable crops specifically targeted to tropical countries. Scientific background for IPM components or tactics will be included. There will be case studies of IPM packages developed and implemented in different countries. The concept of IPM has been in existence for the past six decades; however, a practical holistic program has not been developed and implemented for vegetable crops, in the developing countries. Currently the IPM adoption rate in the tropics is minimal and there is a need for implementation of IPM technologies that are environmentally safe, economical, and socially acceptable. We believe that adoption and implementation of IPM provided in this book will lead to significant reduction in crop losses and mitigate adverse impacts of pesticide use in the tropics. This book is an outcome 20 years of research, development and implementation of the IPM CRSP, a project supported by USAID and administered by Virginia Tech in several developing countries along the tropical belt in Africa, Asia, Latin America and the Caribbean. ​