A Study of Heterotic Grouping, Gene Action and Genotype X Environment Interactions of Mid-altitude and Highland Maize Inbred Lines in Rwanda

A Study of Heterotic Grouping, Gene Action and Genotype X Environment Interactions of Mid-altitude and Highland Maize Inbred Lines in Rwanda PDF Author: Alphonse Nyombayire
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 262

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Genotype-environment Interaction and Its Effects on Heterotic Patterns in a Diallel of Exotic and Local Maize (Zea Mays L.) in Mid Altitude Zones of Kenya

Genotype-environment Interaction and Its Effects on Heterotic Patterns in a Diallel of Exotic and Local Maize (Zea Mays L.) in Mid Altitude Zones of Kenya PDF Author: Omari Mumani Odongo
Publisher:
ISBN:
Category :
Languages : en
Pages : 242

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The Subtropical, Midaltitude, and Highland Maize Subprogram

The Subtropical, Midaltitude, and Highland Maize Subprogram PDF Author:
Publisher: CIMMYT
ISBN: 9789686923315
Category : Corn
Languages : en
Pages : 118

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The Potato Crop

The Potato Crop PDF Author: Hugo Campos
Publisher: Springer Nature
ISBN: 3030286835
Category : Science
Languages : en
Pages : 524

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Book Description
This book is open access under a CC BY 4.0 license. This book provides a fresh, updated and science-based perspective on the current status and prospects of the diverse array of topics related to the potato, and was written by distinguished scientists with hands-on global experience in research aspects related to potato. The potato is the third most important global food crop in terms of consumption. Being the only vegetatively propagated species among the world’s main five staple crops creates both issues and opportunities for the potato: on the one hand, this constrains the speed of its geographic expansion and its options for international commercialization and distribution when compared with commodity crops such as maize, wheat or rice. On the other, it provides an effective insulation against speculation and unforeseen spikes in commodity prices, since the potato does not represent a good traded on global markets. These two factors highlight the underappreciated and underrated role of the potato as a dependable nutrition security crop, one that can mitigate turmoil in world food supply and demand and political instability in some developing countries. Increasingly, the global role of the potato has expanded from a profitable crop in developing countries to a crop providing income and nutrition security in developing ones. This book will appeal to academics and students of crop sciences, but also policy makers and other stakeholders involved in the potato and its contribution to humankind’s food security.

Breeding for drought and nitrogen stress tolerance in maize: From theory to practice

Breeding for drought and nitrogen stress tolerance in maize: From theory to practice PDF Author: M. Bänzinger
Publisher: CIMMYT
ISBN: 9706480463
Category :
Languages : en
Pages : 69

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Book Description
Introduction - why breed for drought and low N tolerance?; Conceptual framework - breeding; Conventional approaches to improving the drought and low N tolerance of maize; Conventional approaches challenged; The challenge of breeding for drought and low N tolerance; Maize under drought and low N stress; Conceptual framework - physiology; Water and the maize plant; Nitrogen and the maize plant; Maize under drought and low N stress - consequences for breeding; Stress management; Drought; Low N stress; Statistical designs and layout of experiments; Increasing the number of replicates; Improved statistical designs; Field layout; Border effects from alleys; Secondary traits; Why use secondary traits?; How do we decide on the value of secondary traits in a drought or low N breeding program?; Secondary traits that help to identify drought tolerance; Secondary traits that help to identify low N tolerance: Selection indices - Combining information on secondary traits with grain yield; Combining information from various experiments; Breeding strategies; Choice of germplasm; Breeding schemes; Biotechnology: potential and constraints for improving drought and low N tolerance; The role of the farmer in selection; What is farmer participatory research and why is it important?; What is new about farmer participatory research?; Participatory methodologies.

Genomic Designing of Climate-Smart Cereal Crops

Genomic Designing of Climate-Smart Cereal Crops PDF Author: Chittaranjan Kole
Publisher: Springer Nature
ISBN: 3319933817
Category : Science
Languages : en
Pages : 321

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Book Description
This book highlights modern methods and strategies to improve cereal crops in the era of climate change, presenting the latest advances in plant molecular mapping and genome sequencing. Spectacular achievements in the fields of molecular breeding, transgenics and genomics in the last three decades have facilitated revolutionary changes in cereal- crop-improvement strategies and techniques. Since the genome sequencing of rice in 2002, the genomes of over eight cereal crops have been sequenced and more are to follow. This has made it possible to decipher the exact nucleotide sequence and chromosomal positions of agroeconomic genes. Most importantly, comparative genomics and genotyping-by-sequencing have opened up new vistas for exploring available biodiversity, particularly of wild crop relatives, for identifying useful donor genes.

Broadening the Genetic Base of Crop Production

Broadening the Genetic Base of Crop Production PDF Author: H. David Cooper
Publisher:
ISBN:
Category : Crops
Languages : en
Pages : 484

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Book Description
This book focuses on the previously neglected interface between the conservation of plant genetic resources and their utilization. Only through utilization can the potential value of conserved genetic resources be realized. However, as this book shows, much conserved germplasm has to be subjected to long-term pre-breeding and genetic enhancement before it can be used in plant breeding programs.The authors explore the rationale and approaches for such pre-breeding efforts as the basis for broadening the genetic bases of crop production. Examples from a range of major food crops are presented and issues analyzed by leading authorities from around the world.

Honeybees of Africa

Honeybees of Africa PDF Author: H. Randall Hepburn
Publisher: Springer Science & Business Media
ISBN: 3662036045
Category : Science
Languages : en
Pages : 378

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Book Description
A comprehensive review of the honeybees of Africa on a subspecies as well as by country basis. Includes an updated multivariate analysis of the subspecies based on the merger of the Ruttner database (Oberursel) and that of Hepburn & Radloff (Grahamstown) for nearly 20,000 bees. Special emphasis is placed on natural zones of hybridisation and introgression of different populations; seasonal cycles of development in different ecological-climatological zones of the continent; swarming, migration and absconding; and an analysis of the bee flora of the continent. The text is supplemented by tables containing quantitative data on all aspects of honeybee biology, and by continental and regional maps.

Plant Breeding and Farmer Participation

Plant Breeding and Farmer Participation PDF Author: Salvatore Ceccarelli
Publisher: Food & Agriculture Org
ISBN: 9789251063828
Category : Architecture
Languages : en
Pages : 671

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Book Description
This book complements the traditional approach to plant breeding by addressing a number of issues specifically related to the participation of farmers in a plant breeding programme, and provides a comprehensive description and assessment of the use of participatory plant breeding in developing countries. It is aimed at plant breeders, social scientists, students and practitioners interested in learning more about its use, with the hope that they all will find a common ground to discuss ways in which plant breeding can be beneficial to all and can contribute to alleviate poverty.

Symposium on Potential Productivity of Field Crops Under Different Environments

Symposium on Potential Productivity of Field Crops Under Different Environments PDF Author: W. H. Smith
Publisher: Int. Rice Res. Inst.
ISBN: 9711041146
Category : Agricultural productivity
Languages : en
Pages : 533

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Book Description
Biological basis, physical environment, and crop productivity; Growth and yield of field crops; Crop productivity under different environments; Increasing productivity through cropping systems.