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Development of Improved Landraces in Agriculture for Rural Development

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Plant Mutagenesis

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Abstract

Landraces serve as reservoirs of genetic diversity, contributing to the enrichment of biodiversity and the preservation and stabilization of ecosystems in a sustainable manner, thereby promoting their functional integrity. These landraces serve as invaluable genetic assets, embodying a rich blend of genes and traits shaped by the interactions between farmers, crops, and their environment. Over centuries, they have laid the genetic foundation of agriculture, offering traits associated with local adaptation, stress resilience, consistent yields, and nutritional value. Despite their comparatively lower productivity than modern cultivars, landraces have gained significance as reservoirs of genetic diversity, particularly for traits related to stress tolerance and resistance. They possess a diverse genetic heritage, making them valuable resources for future crop development, potentially enhancing crop performance, albeit with interactions with environmental factors. Landraces have also shown resistance to pathogens, holding untapped potential for further utilization. Moreover, they offer the prospect of improving the nutritional quality of cereal crops by enhancing traits like antioxidants, phenolics, carotenoids, and mineral content. This chapter emphasizes the importance of participatory plant breeding and variety selection in improving landraces, particularly in stressed situations where sustainability is a top goal. It also underscores the pivotal role of landraces in scientific plant breeding and their contribution to maintaining genetic diversity essential for creating new crop varieties. Additionally, mentions the current trend of landrace abandonment in favor of modern, high-yielding varieties in certain areas and emphasizes the multifaceted impact of enhancing landraces on rural development, encompassing food security, nutrition, income generation, and climate resilience.

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Authors and Affiliations

  1. Department of Crop Science, Faculty of Agriculture, University of Ruhuna, Mapalana, Kamburupitiya, Sri Lanka

    W. K. N. S. Dias, H. I. G. K. Anuruddi & D. L. C. K. Fonseka

Authors
  1. W. K. N. S. Dias
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  2. H. I. G. K. Anuruddi
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  3. D. L. C. K. Fonseka
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Corresponding author

Correspondence to D. L. C. K. Fonseka .

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Editors and Affiliations

  1. Department of Biotechnology, Central University of South Bihar, Bihar, India

    Nitish Kumar

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Dias, W.K.N.S., Anuruddi, H.I.G.K., Fonseka, D.L.C.K. (2024). Development of Improved Landraces in Agriculture for Rural Development. In: Kumar, N. (eds) Plant Mutagenesis. Sustainable Landscape Planning and Natural Resources Management. Springer, Cham. https://doi.org/10.1007/978-3-031-50729-8_16

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