Crop Physiology :Applications for Genetic Improvement and Agronomy ( 2 )

Publication subTitle :Applications for Genetic Improvement and Agronomy

Publication series :2

Author: Sadras   Victor O.;Calderini   Daniel  

Publisher: Elsevier Science‎

Publication year: 2014

E-ISBN: 9780124169791

P-ISBN(Paperback): 9780124171046

P-ISBN(Hardback):  9780124171046

Subject: S311 crop physiology

Language: ENG

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Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Description

From climate change to farming systems to genetic modification of organisms, Crop Physiology, Second Edition provides a practical tool for understanding the relationships and challenges of successful cropping. With a focus on genetic improvement and agronomy, this book addresses the challenges of environmentally sound production of bulk and quality food, fodder, fiber, and energy which are of ongoing international concern. The second edition of Crop Physiology continues to provide a unique analysis of these topics while reflecting important changes and advances in the relevant science and implementation systems.

Contemporary agriculture confronts the challenge of increasing demand in terms of quantitative and qualitative production targets. These targets have to be achieved against the background of soil and water scarcity, worldwide and regional shifts in the patterns of land use driven by both climate change and the need to develop crop-based sources of energy, and the environmental and social aspects of agricultural sustainability.

  • Provides a view of crop physiology as an active source of methods, theories, ideas, and tools for application in genetic improvement and agronomy
  • Written by leading scientists from around the world
  • Combines environment-specific cropping systems and general principles of crop science to appeal to advanced students, and scientists in agriculture-related disciplines, from molecular sciences to natu

Chapter

Part I - Farming systems

Chapter 2 - High-yield maize–soybean cropping systems in the US Corn Belt

1 - Introduction

2 - Cropping systems

2.1 - Weather and soils

2.2 - Crop management

3 - Productivity and resource-use efficiency

3.1 - Resource requirements for high yields

3.2 - Time trends in yields and input-use efficiency

3.3 - Drivers for higher yields and efficiencies

3.3.1 - Maize

Genetic Drivers

Agronomic Drivers

G × A interaction

3.3.2 - Soybean

Genetic Drivers

Agronomic Drivers

G × A interaction

4 - Challenges to higher yields and efficiencies

5 - Concluding remarks

References

Chapter 3 - Farming systems in China: Innovations for sustainable crop production

1 - Introduction

2 - The abiotic environments for crop production

2.1 - Climatic conditions and historical changes

2.2 - Soil conditions, land use and historical changes

3 - Farming system diversity and spatial distribution

3.1 - Major grain crops

3.2 - Grain-based cropping systems

4 - Yield enhancement via genetic improvement and agronomic innovation

4.1 - Trends in grain production

4.2 - Contribution of genetic improvement

4.3 - Contribution of agronomic innovation

4.3.1 - Soil tillage

4.3.2 - Cropping season optimization

4.3.3 - Rice cropping technique innovation

5 - Attempts to improve resource-use efficiency

5.1 - Conservation agriculture for high water-use efficiency

5.2 - Innovations for improving nitrogen fertilizer-use efficiency

6 - Cropping responses and adaptations to warming

6.1 - Crop phenology responses

6.2 - Crop yield responses

6.3 - Adaptations of cropping systems to warming in northeast China

7 - Concluding remarks

References

Chapter 4 - Improving farming systems in northern Europe

1 - Special features of northern European conditions for crop production

1.1 - Harsh winters

1.2 - Short and intensive growing seasons

1.3 - Early summer drought and uneven distribution of precipitation

2 - Adaptation: a matter of crop responses when coping with northern conditions

2.1 - Development and growth: the need to hurry

2.1.1 - Phenophases

2.1.2 - Role of main yield-determining components and compensation between them

2.1.3 - Dynamics of tillering

2.1.4 - Adaptation to over-wintering

3 - Gaps between potential and actual yields

3.1 - Changes in yield trends in northern growing areas

3.1.1 - Steady increases in genetic gains

3.1.2 - Periodic fluctuation in realization of existing genetic yield potential

4 - Challenges and practices in attempting to improve sustainability

4.1 - Nutrient leaching

4.2 - Maintenance of soil fertility and production

4.3 - Reductions in soil tillage

4.4 - Crops for nutrient uptake and soil coverage

4.5 - Multiple and versatile cropping

4.6 - Improving resource-use efficiency

5 - The future and climate change

6 - Concluding remarks

References

Chapter 5 - Raising productivity of maize-based cropping systems in eastern and southern Africa: Step-wise intensification options

1 - Introduction

2 - Maize-based farming systems in eastern and southern Africa

2.1 - Maize cropping systems

2.2 - Climate

2.3 - Maize management and crop performance

3 - Sustainable intensification of sub-Saharan agriculture

3.1 - A stepping-stone approach for adoption of complex technological packages

3.1.1 - Step 1: Improving agronomic practice

3.1.2 - Step 2: Increasing farmers’ investment

3.1.3 - Step 3: Identifying and supporting transformational changes and engagement with markets

4 - Methods

4.1 - Participatory approaches to identify relevant and actionable interventions in stepping stone approaches: Case studies...

4.2 - Scaling-out stepping-stone approaches for the sustainable intensification of agriculture across contrasting environme...

5 - Results

5.1 - Model performance

5.2 - Farmers’ performance and stepping-stone approaches for the sustainable intensification of agriculture

5.3 - Scaling out the stepping-stone approach for the sustainable intensification of agriculture across contrasting agroeco...

5.3.1 - Maize yield responses across rainfall environments

6 - Discussion and conclusions

Acknowledgements

References

Chapter 6 - Cropping systems in environments with high yield potential of southern Chile

1 - Introduction

1.1 - Food production in Chile, a national aim

1.2 - National production and yield trends of key annual crops of southern Chile: temperate cereals and potato

2 - Environmental and agricultural features of southern Chile

2.1 - Climate and soils. High diversity in a narrow piece of land

2.2 - The social context

2.3 - Cereal, potato, lupin and oilseed crops

2.4 - Tillage practices

3 - Cereal-based cropping systems at high yield potential conditions

3.1 - Temperate cereals in southern Chile

3.2 - Environmental and crop characteristics accounting for the high potential yield of temperate cereals

3.3 - Considerations for spring cereals in cropping systems

3.4 - Main features of cereal-based crop rotations and production

4 - The potato-based cropping systems; Between subsistence agriculture and high input production

4.1 - Overview

4.2 - Bridging the gap between actual and potential yields

5 - Rapeseed and lupin in current farming systems

5.1 - Rapeseed

5.2 - Lupins

6 - Challenges and opportunities for cropping systems of southern Chile

6.1 - Yield potential improvement of wheat for the advance of southern cropping systems

6.2 - The need to link breeding and physiology for potato improvement

6.3 - Lupin improvement is a key to consolidate this crop in southern cropping systems

6.4 - The challenge of herbicide-resistant weeds

6.5 - Scenarios of global change

7 - Concluding remarks

References

Chapter 7 - Cereal yield in Mediterranean-type environments: challenging the paradigms on terminal drought, the adaptability of...

1 - Introduction

2 - Terminal drought?

3 - Does barley out-yield wheat under severe water deficit?

4 - Does nitrogen fertilization reduce yield in low-rainfall conditions?

4.1 - Cereal yield and nitrogen in the Mediterranean Basin

4.1.1 - Cereal responses to nitrogen in Northern Spain

4.1.2 - Cereal responses to nitrogen in the Mediterranean basin

4.2 - Wheat yield and nitrogen in Australia

5 - Concluding remarks

References

Part II - Carbon, water and nutrient economies of crops

Chapter 8 - Quantifying crop responses to nitrogen and avenues to improve nitrogen-use efficiency

1 - Introduction

2 - Crop N demand: its regulation at plant and crop levels

2.1 - N dilution and N-uptake dynamics

2.1.1 - Empirical approach

2.1.2 - Physiological principles

2.2 - Co-regulation of N uptake by both N soil availability and plant growth rate potential

2.3 - Diagnostic of plant N status in crops

2.3.1 - Nitrogen nutrition index

2.3.2 - Assessment of crop N status in field experiments: a prerequisite for interpretation of agronomic data

2.3.3 - Simplified methods for evaluating nitrogen nutrition index

2.4 - Intra- and inter-specific interactions within plant stands

3 - Response of plants and crops to N deficiency

3.1 - Crop life cycle and plant N economy

3.2 - Effects of N deficiency on crop mass accumulation

3.2.1 - Radiation-use efficiency and PAR interception

3.2.2 - Effect of N deficiency on canopy size and radiation interception

3.2.3 - Effect of N deficiency on leaf photosynthesis

3.2.4 - Integrating from leaf to canopy photosynthesis

3.2.5 - Trade-off between light capture and radiation-use efficiency

3.3 - N deficiency effects on C and N allocation within plants and canopies

3.3.1 - C and N allocation to roots

3.3.2 - C and N allocation to stems

3.3.3 - N allocation within canopies

3.4 - Harvest index and components of grain yield

3.5 - Interactions of nitrogen deficit with other resources and stresses

3.5.1 - Co-limitation of N and other resources

3.5.2 - N deficiency–water deficit interactions

3.5.3 - N × P × S interactions

4 - Nitrogen-Use Efficiency

4.1 - N-uptake efficiency

4.2 - Nitrogen-utilization efficiency

4.3 - Harvest index and protein concentration in grain

4.4 - Breeding for Nitrogen-Use Efficiency?

5 - Conclusions

References

Chapter 9 - A Darwinian perspective on improving nitrogen-fixation efficiency of legume crops and forages

1 - Nitrogen fixation’s role in agriculture

2 - A Darwinian perspective on improving N2 fixation

3 - Rationale for focus on efficiency of N2 fixation rather than rate

3.1 - Increasing N2-fixation efficiency of current rhizobial strains

3.2 - Increasing nodule occupancy by the most efficient strains

4 - Conclusion

References

Chapter 10 - Senescence and crop performance

1 - Introduction

2 - Senescence and development

2.1 - Anatomical development through localized senescence

2.2 - Leaf senescence

2.3 - Root senescence

2.4 - Senescence of reproductive structures

2.5 - Fruit ripening

3 - Senescence and crop adaptability

3.1 - Seasonal influences on plant senescence

3.2 - Senescence in response to unpredictable abiotic stresses

3.3 - Diseases and plant senescence

4 - Senescence and crop production

4.1 - The carbon capture phase of crop development

4.2 - Supply and demand during growth and senescence

4.3 - Sugar sensing and source–sink communication

4.4 - Autophagy, a universal integrative cell senescence mechanism

4.5 - Hormonal regulation of sources and sinks

4.6 - Leaves as storage organs

4.7 - Rubiscolytics

4.8 - Genetic manipulation of the transition from carbon capture to nitrogen mobilization

4.9 - Post-harvest Phase

5 - Conclusion: senescence and its implications for crop improvement

References

Chapter 11 - Improving water transport for carbon gain in crops

1 - Introduction

2 - Water transport and carbon gain

2.1 - Water transport as a limitation

2.2 - Link between water transport and photosynthesis

3 - Determinants of water transport

3.1 - Maximum efficiency in leaves

3.1.1 - Vein density – a key determinant of leaf hydraulic efficiency

3.2 - Maximum efficiency in roots

3.2.1 - Root hydraulic conductivity

4 - Maintenance and regulation of water transport

4.1 - Hydraulic regulation in roots

4.2 - Hydraulic regulation in leaves

4.3 - Water stress and cavitation

4.3.1 - Xylem vulnerability in crops

4.3.2 - Embolism repair/root pressure

5 - Concluding remarks

References

Part III - Genetic improvement and agronomy

Chapter 12 - Genetic and environmental effects on crop development determining adaptation and yield

1 - Introduction

2 - Crop development

2.1 - Major developmental stages or phases

2.1.1 - Wheat

2.1.2 - Soybean

3 - Developmental responses to environmental factors

3.1 - Temperature per se

3.2 - Photoperiod

3.3 - Vernalization

4 - Genetic control of development

4.1 - Genes affecting development in wheat and related species

4.1.1 - Vernalization response genes

4.1.2 - Photoperiod response genes

4.1.3 - Earliness per se genes

4.2 - Genes affecting development in soybean

4.2.1 - Photoperiod response genes

4.2.2 - Long-juvenile genes

4.2.3 - Growth habit genes

5 - Can we improve crop adaptation and yield potential through fine-tuning developmental rates?

5.1 - Crop development and adaptation

5.2 - Crop development and yield potential

6 - Concluding remarks

References

Chapter 13 - Characterizing the crop environment – nature, significance and applications

1 - Introduction

2 - Characterization of the target population of environments (TPE) – a better understanding of the nature, distribution an...

2.1 - Importance of characterizing the TPE

2.2 - Different types of environment classification

2.2.1 - Yield-based characterization

Trial-based characterization – Capturing G × E interactions

Modelling-based characterization – Simulation of a wide range of environments

2.2.2 - Pedo-climatic characterization

2.2.3 - Specific-stress characterization

2.3 - Comparison of environments (regions), genotypes and management practices to assist site and management selection, ger...

2.3.1 - Breeding-trial locations and management practices

2.3.2 - Exchange of germplasm

2.3.3 - Adaptation to future climates

3 - Trial characterization – Adding value to field data through improved understanding of the genotypic variability

3.1 - Environment characterization at the trial level

3.2 - Genotype–environment interpretation

3.3 - Trial representativeness and weighted selection

4 - Managed environments – Increasing the relevance of phenotyping environments

4.1 - Managed environments to target specific stresses in the field

4.2 - Phenotyping platforms in artificial environments

5 - Crop plasticity and environment types – Identification of key traits for potential adaptation

5.1 - Which traits for which environment types?

5.2 - Design and evaluation of breeding strategies

6 - Concluding remarks – Perspective

Acknowledgment

References

Chapter 14 - Model-assisted phenotyping and ideotype design

1 - Introduction

2 - The ideotype concept: its usefulness and limitations for breeding and varietal choice

3 - How to deal with genetic control in ecophysiological models?

3.1 - Required level of complexity

3.2 - Integration of QTL/genes in ecophysiological models

3.3 - Ecophysiological modeling to support trait assessment in multienvironments

3.4 - Robust simulation of genotype × environment interactions

3.5 - New technologies and their potential for gene-to-phenotype modeling

3.6 - Deciphering QTL × environment interactions

3.7 - Link with breeding

4 - Tools for optimizing trait combinations and model-based ideotyping

4.1 - Optimization of cultural practices

4.2 - Optimization of genetic parameters

4.3 Optimization of allelic combinations

4.4 Towards virtual breeding

5 - Future prospects

References

Chapter 15 - Crop phenotyping for physiological breeding in grain crops: A case study for maize

1 - Introduction

2 - Trait dissection of the general physiological model of grain yield determination in maize crops

3 - Gains in maize yield

4 - Breeding effects on the physiological determinants of maize yield

5 - Field-based phenotyping of physiological traits

6 - Genetic structure of maize physiological traits

7 - Conclusions

References

Chapter 16 - Breeding challenge: improving yield potential

1 - Rationale for raising yield potential

2 - Relationship between yield potential and yield under abiotic stress

3 - Current rates of progress in yield potential and associated traits

3.1 - Current rates of yield progress

3.1.1 - Maize

3.1.2 - Rice

3.1.3 - Wheat

3.2 - Traits associated with yield progress

3.2.1 - Maize

3.2.2 - Rice

3.3.3 - Wheat

4 - Opportunities for future gains in yield potential

4.1 - Optimize rooting traits

4.2 - Increase radiation-use efficiency

4.2.1 - Radiation-use efficiency at the canopy level

4.2.2 - Increase leaf photosynthetic rate

4.2.3 - Decrease respiration

4.3 - Increase ear/panicle DM partitioning and fruiting efficiency

4.4 - Strategies to optimize potential grain size

5 - Trait-based breeding

6 - Concluding remarks

References

Chapter 17 - Improving grain quality: ecophysiological and modeling tools to develop management and breeding strategies

1 - Introduction

2 - Environmental and genetic effects on grain composition

2.1 - Oil concentration

2.2 - Oil composition

2.3 - Oil tocopherol and phytosterol concentration

2.4 - Protein concentration

2.5 - Protein composition

3 - Integration of quality traits into crop simulation models

3.1 - Modeling oil concentration and composition in sunflower

3.2 - Modeling grain protein concentration and composition in wheat

4 - Applying crop physiology to obtain a specific quality and high yields

4.1 - Sunflower yield and oil composition

4.2 - Wheat yield and protein concentration

4.3 - Management strategies for obtaining a target grain and oil composition

4.3.1 - Grain oil concentration

4.3.2 - Oil fatty acid composition

4.3.3 - Grain protein concentration

4.4 - Strategies for genetic improvement of quality traits

4.4.1 - Grain oil concentration

4.4.2 - Oil fatty acid composition

4.4.3 - Oil tocopherol concentration

4.4.4 - Grain protein concentration

5 - Concluding remarks

Acknowledgments

References

Chapter 18 - Integrated views in plant breeding: from the perspective of biotechnology

1 - Introduction

2 - Modern views in plant breeding

3 - Pre-breeding: a link between genetic resources and crop improvement

4 - DNA technologies boost new knowledge to understand plant diversity

5 - Allele mining: explore plant diversity by sequencing

6 - GM breeding

7 - Beyond GM plants: the new breeding techniques

8 - Genomic selection

9 - Concluding remarks

Acknowledgments

References

Chapter 19 - Integration of biotechnology, plant breeding and crop physiology. Dealing with complex interactions from a physiolo...

1 - Introduction

2 - Contributions of crop physiology to plant breeding and biotechnology

2.1 - Analysis of past achievements of plant breeding

2.2 - Identification of traits for high yield potential and adaptation to the target environments

2.2.1 - The top-down approach

2.2.2 - The bottom-up approach

2.3 - Disentangling complex interactions

2.3.1 - Interactions at the trait level

2.3.2 - Interactions at the QTL or gene level

2.4 - Other contributions of crop physiology to plant breeding

3 - Contributions of biotechnology to plant breeding and crop physiology

3.1 - Biotechnology facilitates the use of key traits in plant breeding

3.2 - Contributions of biotechnology to crop physiology

4 - Conclusions

References

Chapter 20 - Crop modeling for climate change impact and adaptation

1 - Introduction

2 - Climate change

2.1 - Realized trends

2.2 - Future projections

3 - Crop response to climate change

3.1 - Elevated atmospheric CO2 concentrations

3.2 - Temperature

3.3 - Rainfall and rainfall variability

3.4 - Solar radiation

3.5 - Ozone

3.6 - Combined impact of climate change

4 - Crop models for climate change

4.1 - Modeling CO2 effect

4.2 - Modeling temperature effect

4.3 - Modeling rainfall and rainfall variability effect

4.4 - Modeling solar radiation effect

4.5 - Modeling ozone effect

4.6 - Model validation

5 - Impacts of climate change on crop production

5.1 - Past trends

5.2 - Future scenarios

6 - Adaptation to climate change

6.1 - Management

6.2 - Use of seasonal climate forecasting

6.3 - Breeding

7 - Concluding remarks and knowledge gaps

References

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