A review on crop improvement strategies and breeding methods in ornamental annuals

R Priyadharsini, K R Rajadurai, A Beaulah, M Madhan Mohan, K Venkatesan and S Rajesh
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R Priyadharsini: Department of Floriculture and Landscaping, Horticultural College and Research Institute, Periyakulam, Theni, Tamil Nadu Agricultural University, Tamil Nadu, India
K R Rajadurai: Department of Post Harvest Technology, Horticultural College and Research Institute, Periyakulam, Theni, Tamil Nadu Agricultural University, Tamil Nadu, India
A Beaulah: Department of Plant Breeding and Genetics, Agricultural Research Station, Vaigai Dam, Tamil Nadu, India
M Madhan Mohan: 4Department of Natural Resource Management, Horticultural College and Research Institute, Periyakulam, Theni, Tamil Nadu Agricultural University, Tamil Nadu, India

Horticultural Science, 2025, vol. 52, issue 1, 15-32

Abstract: The availability of a broad variety of cultivars in many ornamental species has increased recently, in particular for attractive annuals, which are valued commercially for their use as cut flowers, potted plants, loose flowers, and in landscape gardening. The breeding of ornamental plants in the current scenario is a challenging endeavour with constantly evolving new obstacles. Modern genomic technologies provide prospects for improved precision breeding and selection for characteristics that are more difficult to determine. Traditionally, ornamental breeding has been focused on increasing resistance to biotic or abiotic stress, novelty, yield, and quality. However, accomplishing these objectives necessitates tedious cross-breeding, and exact breeding methods have been noticed to be not applied constantly. Though the purposes of ornamental crop breeding may vary, the process generally does not differ from the breeding of other crops. Furthermore, vegetatively propagated ornamentals constitute most of the crops. The expanding interest in ornamental crops that are produced by modern crop breeding methods such as genome editing, chromosome manipulation, molecular marker-assisted breeding, mutation breeding, and exploiting somaclonal variations, particularly in relation to altering desirable plant features and producing new ornamental traits of the crops which is the main objective of crop improvement practices. Hence, it has become obligatory to evaluate the current state of any technology created following an in-depth study carried out by several research organisations.

Keywords: breeding strategies; crop improvement; cross breeding; genome editing; mutation; precision breeding (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlhor:v:52:y:2025:i:1:id:31-2024-hortsci

DOI: 10.17221/31/2024-HORTSCI

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