Download Crop variety improvement and its effect on productivity: the by Robert E Evenson, Douglas Gollin PDF

By Robert E Evenson, Douglas Gollin

This e-book reviews at the productiveness affects of varietal development learn carried out at a few foreign centres affiliated with the Consultative staff on overseas Agricultural study. Such centres were on the vanguard of a 40-year attempt to reproduce new different types of the world's staple nutrients vegetation. The contributed chapters are the most fabricated from a examine initiated and supported through the impression review and assessment crew (now the status Panel on impression overview) of the CGIAR. Descriptive facts and econometric versions were used to guage the influence of study on eleven vegetation and kingdom case stories in Brazil, China and India. The contents comprise an creation and method part (3 chapters); crop experiences on rice, wheat, maize, sorghum, pearl millet, barley, lentils, potato, cassava, groundnut and customary bean (Phaseolus vulgaris); case stories in Brazil, China and India; and a suite of three synthesis papers reporting international and neighborhood affects on construction and human welfare. The ebook should still turn out of vital curiosity to these operating inside of plant breeding, crop technology and agricultural economics. to be had In Print

Show description

Read or Download Crop variety improvement and its effect on productivity: the impact of international agricultural research PDF

Similar crop science books

Water Productivity in Agriculture: Limits and Opportunities for Improvement (Comprehensive Assessment of Water Management in Agriculture Series, 1)

First name in an important new seriesAddresses bettering water productiveness to alleviate difficulties of shortage and pageant to supply for meals and environmental securityDraws from scientists having a mess of disciplines to technique this significant problemIn a great number of constructing nations, coverage makers and researchers are more and more conscious of the conflicting calls for on water, and think about agriculture to be better in its use of water.

Legume crop genomics

Demonstrating the quantum bounce genomics represents in expertise, this booklet records the preliminary learn suggestions, the improvement of genomic instruments and assets, and the legume-community consensus at the study ambitions that may consultant the genomic characterization of significant legume vegetation. The booklet offers this technical topic in a way that is helping readers resolution the query, "What is genomics?

Phenotyping crop plants for physiological and biochemical traits

Phenotyping Crop vegetation for Physiological and Biochemical characteristics provides a confirmed variety of methodologies and practices for powerful, effective, and acceptable typing of crop crops. by means of addressing the elemental ideas and precautions wanted while carrying out crop-based experiments, this ebook courses the reader in determining the correct technique in line with the turning out to be atmosphere, even if greenhouse, pot, box, or liquid (hydroponic).

Additional info for Crop variety improvement and its effect on productivity: the impact of international agricultural research

Sample text

Seventeen Latin American NARS (88 breeders) had bean programmes in the 1970s. Only two programmes were active in Africa in the 1970s, but by 1998, 12 programmes in Africa (40 breeders) were operating. CIAT in Colombia has been supporting bean improvement research for a number of years. 5 N IA IX 1980 1990 Years Adoption shares 100% 80% N 60% IX/IA 40% M 20% T 0% 1990 1998 Years Fig. 6. Varietal releases and adoption shares: barley. T = traditional variety; M = modern varieties; IX = IARC crosses; IA = NARS crosses, IARC ancestors; N = NARS crosses, NARS ancestors.

Food prices have fallen in all countries and consumers have benefited. However, for farmers, it is the local dimension of food security that has mattered most. When prices decline and costs do not, farmers are harmed. Varietal improvement programmes have not delivered modern crop varieties to all farmers and, for many farmers, access to modern varieties is a recent phenomenon. Both biological and political factors contribute to the uneven delivery of improved crop varieties to farmers. CGI programmes should be assessed against both global and local food security dimensions.

This volume consists of an introductory section (Chapters 2 and 3) and three main parts. Chapter 2 gives an overview which is designed to pick out some recurring themes and central messages from the subsequent chapters, and Chapter 3 offers a survey of methodological issues related to crop improvement studies. Part II (Chapters 4–16) focuses on studies of individual crops and regions, with each chapter highlighting the experience of a single IARC with a particular crop. g. g. Chapter 6 on rice in West Africa).

Download PDF sample

Rated 4.25 of 5 – based on 44 votes