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Varietal Replacement Rate: Prospects And Challenges For Global Food Security

Rakhee Singh, Anjani Devi Chintagunta, D. Agarwal, R. Kureel, S. Kumar
Published 2020 · Business

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Abstract The greatest challenge to ensure global food security is sustained agriculture growth that not only helps in increased crop productivity but also caters the food and nutritional demand of burgeoning population. Development, deployment and diffusion of efficient technologies in terms of climate resilience, efficient resource utilization and high yielding varieties/hybrids are required to attain desired growth that ultimately alleviate poverty and vulnerability posed by climate change effects. Genetic enhancements made by crop improvement can be translated into higher productivity with deployment of newly developed varieties. Although new varieties are continuously being introduced into the seed chain but varietal scenario at times is dominated by few varieties having major percentage share in the total indented breeder seed/basic seed requirement. Almost in all the crops, some of the old varieties still occupy the prominent position by virtue of achieving mega variety status. Besides, various institutional, environmental, socio-economic and technical constraints are persisting, which impedes in up-scaling the varietal replacement rates in developing countries. To accelerate varietal replacement rate, several strategies such as pre-breeding, participatory plant breeding, maintenance breeding, quality seed systems and policy support are quintessential. Thus, in the review, challenges associated in hindering VRR and strategies to be deployed for increasing VRR have been illustrated. Adoption of these strategies could envisage higher varietal replacement rate and ultimately higher crop productivity among climate change.
This paper references
Alternatives for seed regulatory reform. An analysis of variety testing, variety regulation and seed quality control
R. Tripp (1997)
10.1093/ajae/aaq122
Subsidies and Crowding Out: A Double�?Hurdle Model of Fertilizer Demand in Malawi
Jacob Ricker‐Gilbert (2011)
10.1016/J.BCAB.2019.01.044
Nutraceuticals derived from seed storage proteins: Implications for health wellness
A. Kumar (2019)
10.1186/s40066-017-0108-6
Characteristics of maize cultivars in Africa: How modern are they and how many do smallholder farmers grow?
Tsedeke Abate (2017)
A profile of heavy metals in rice ( Oryza sativa ssp . indica ) landraces
(2015)
10.1016/j.gfs.2017.01.008
Rapid breeding and varietal replacement are critical to adaptation of cropping systems in the developing world to climate change
G. Atlin (2017)
10.1002/JSFA.2601
Historical shifts in the seed mineral micronutrient concentration of US hard red winter wheat germplasm
D. F. Garvin (2006)
10.2307/1243537
National and International Wheat Improvement Research in the Post-Green Revolution Period: Evolution and Impacts
D. Byerlee (1995)
10.1177/003072709902800107
Do Farmer-Participatory Methods Apply More to High Potential Areas Than to Marginal Ones?
J. R. Witcombe (1999)
10.3934/AGRFOOD.2017.2.165
Observing adaptive capacity in Indian rice production systems
J. M. Duncan (2017)
10.1093/aob/mcv098
Seed birth to death: dual functions of reactive oxygen species in seed physiology.
S. J. Jeevan Kumar (2015)
10.1016/J.FCR.2010.08.003
The importance of maintenance breeding: a case study of the first miracle rice variety-IR8.
S. Peng (2010)
The Indian seed industry: Its history, current status and future
V. Gadwal (2003)
10.1007/s11738-016-2315-3
Recombinant pharmaceutical protein production in plants: unraveling the therapeutic potential of molecular pharming
V. R. Dirisala (2016)
10.21955/GATESOPENRES.1115279.1
Policy Options to Accelerate Variety Change Among Smallholder Farmers in South Asia and Africa South of the Sahara
D. Spielman (2017)
10.3362/9781780445854.005
The Extent and Rate of Adoption of Modern Cultivars in India
J. Witcombe (1998)
10.1079/9781780644011.0388
Varietal Adoption, Outcomes and Impact
Travis S. Walker (2015)
10.2135/CROPSCI1999.3961552X
Yield Potential Trends of Tropical Rice since the Release of IR8 and the Challenge of Increasing Rice Yield Potential
S. Peng (1999)
10.1016/J.WORLDDEV.2006.05.019
Protecting Farmers' New Varieties: New Approaches to Rights on Collective Innovations in Plant Genetic Resources
R. Salazar (2007)
10.1186/s12870-015-0690-3
Whole genome re-sequencing reveals genome-wide variations among parental lines of 16 mapping populations in chickpea (Cicer arietinum L.)
M. Thudi (2015)
10.1016/j.shpsc.2015.01.004
Wide adaptation of Green Revolution wheat: international roots and the Indian context of a new plant breeding ideal, 1960-1970.
M. Baranski (2015)
10.1079/9781780644011.0239
Scientific strength in rice improvement programmes, varietal outputs and adoption of improved varieties in South Asia.
S. Pandey (2015)
10.1016/0040-1625(93)90053-A
The adoption of agricultural innovations: A review
G. Feder (1993)
10.1111/j.1467-8489.2008.00435.x
Wheat Breeding, Productivity and Slow Variety Change: Evidence from the Punjab of India after the Green Revolution
M. Smale (2008)
Pulses research and development strategies for India
C. L. L. Gowda (2015)
10.1093/ERAE/JBV012
Transgenic Crops, Production Risk, and Agrobiodiversity
V. V. Krishna (2016)
10.1080/15427528.2011.651775
Varietal Diffusion in Marginal Seed Systems: Participatory Trials Initiate Change in East Timor
Myrtille Lacoste (2012)
10.22004/AG.ECON.210314
Adoption and Outcomes of Hybrid Maize in the Marginal Areas of India: Annex: Questionnaire
Prabhakaran T. Raghu (2015)
10.1016/J.AGSY.2017.10.005
Pathways from research on improved staple crop germplasm to poverty reduction for smallholder farmers
J. Alwang (2017)
10.5958/2320-642X.2016.00007.7
Increased Yield and Crop Diversification through Adoption of Climate Resilient Varieties among Pulse Crops in India: An Appraisal
R. Singh (2016)
10.1080/15427528.2017.1325808
Acceptance and competitiveness of new improved wheat varieties by smallholder farmers
K. D. Joshi (2017)
Characterization and Identification of Rice Germplasm Accessions Using Chemical Tests
C. Singh (2017)
10.1016/J.PLGENE.2019.100183
Microprojectile based particle bombardment in development of transgenic indica rice involving AmSOD gene to impart tolerance to salinity
Susmita Sarangi (2019)
Phytoremediation of Heavy Metals with Amaranthus dubius in Semi-arid Soils of Patancheru, Andhra Pradesh
K. S. Shankar (2011)
10.5958/2322-0430.2016.00098.6
Role of land reforms in eradicating land inequalities in rural india
N. Singla (2016)
10.1016/B978-0-12-805374-4.00007-5
Rice Varietal Development to Meet Future Challenges
A. Kumar (2017)
10.5772/27917
Impact of Drought Stress on Peanut (Arachis hypogaea L.) Productivity and Food Safety
Devaiah M. Kambiranda (2011)
10.1111/j.1750-3841.2011.02135.x
Genotypic variation and relationships between quality traits and trace elements in traditional and improved rice (Oryza sativa L.) genotypes.
A. Anandan (2011)
10.1146/ANNUREV.ENERGY.28.040202.122858
Meeting Cereal Demand While Protecting Natural Resources and Improving Environmental Quality
K. Cassman (2003)
The rate of crop varietal replacement on farms: measures and empirical results for wheat
J. Brennan (1991)
10.15406/APAR.2017.06.00200
Improving Seed Systems Resiliency at Local Level through Participatory Approach for Adaptation to Climate Change
R. P. Singh (2016)
Client-Oriented Breeding and Seed Supply
J. Witcombe (2007)
10.13005/BPJ/1648
In-Vitro Studies on Antitumour and Antimicrobial Activities of Methanolic Kernel Extract of Mangifera Indica L. Cultivar Banganapalli
N. K. Raju (2019)
10.4337/9781849802239
Climate Change and Agriculture
Robert A. Mendelsohn (2009)
Innovations in rice production
P. Shetty (2013)
10.1017/S0014479716000545
ADOPTION OF RICE VARIETIES - I. AGE OF VARIETIES AND PATTERNS OF VARIABILITY
J. Witcombe (2017)
10.1007/BF02190624
Selection for local adaptation in a plant breeding programme
N. Simmonds (2005)
10.1073/pnas.0912953109
Green Revolution: Impacts, limits, and the path ahead
P. Pingali (2012)
Seed Quality Markers: A Review
Jeevan Kumar Sp (2016)
10.1038/NCLIMATE3061
Current warming will reduce yields unless maize breeding and seed systems adapt immediately
Andrew J. Challinor (2016)
10.1186/s12284-017-0187-9
Delineation of Inheritance Pattern of Aleurone Layer Colour Through Chemical Tests in Rice
Chandu Singh (2017)
10.1007/s12571-011-0140-5
Crops that feed the world 6. Past successes and future challenges to the role played by maize in global food security
B. Shiferaw (2011)
10.1007/s13197-014-1405-8
Enzymatic polishing of cereal grains for improved nutrient retainment
A. Singh (2014)
10.1016/J.WORLDDEV.2007.04.005
Adoption and Impact of Hybrid Wheat in India
I. Matuschke (2006)
10.1080/15427528.2011.611277
Integrated Seed Sector Development in Africa: A Conceptual Framework for Creating Coherence Between Practices, Programs, and Policies
N. P. Louwaars (2012)



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