2021
DOI: 10.3389/fpls.2021.756768
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Phenomics-Assisted Selection for Herbage Accumulation in Alfalfa (Medicago sativa L.)

Abstract: The application of remote sensing in plant breeding is becoming a routine method for fast and non-destructive high-throughput phenotyping (HTP) using unmanned aerial vehicles (UAVs) equipped with sensors. Alfalfa (Medicago sativa L.) is a perennial forage legume grown in more than 30 million hectares worldwide. Breeding alfalfa for herbage accumulation (HA) requires frequent and multiple phenotyping efforts, which is laborious and costly. The objective of this study was to assess the efficiency of UAV-based im… Show more

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Cited by 14 publications
(15 citation statements)
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“…Yield improvement in alfalfa has stalled for the past 20–30 yr (Brummer & Casler, 2014), with an increment of only ∼0.50% per year (Annicchiarico, Barrett, et al., 2015; Lamb et al., 2006). Given its importance, DMY has received attention by various breeding programs in recent years (Acharya et al., 2020; Adhikari et al., 2019; Biswas et al., 2021; dos Santos et al., 2018; Sakiroglu & Brummer, 2017). The low rate of yield progress can be ascribed to the perennial nature of alfalfa (long breeding cycles), the harvesting of the entire plant (and hence the inability to make gains in harvest index), multiple harvests per year, the high genotype by environment interaction (G×E), the high costs of phenotyping, tetrasomic inheritance, and the high level of non‐additive variance (Acharya et al., 2016, 2020; Annicchiarico, Barrett, et al., 2015).…”
Section: Introductionmentioning
confidence: 99%
“…Yield improvement in alfalfa has stalled for the past 20–30 yr (Brummer & Casler, 2014), with an increment of only ∼0.50% per year (Annicchiarico, Barrett, et al., 2015; Lamb et al., 2006). Given its importance, DMY has received attention by various breeding programs in recent years (Acharya et al., 2020; Adhikari et al., 2019; Biswas et al., 2021; dos Santos et al., 2018; Sakiroglu & Brummer, 2017). The low rate of yield progress can be ascribed to the perennial nature of alfalfa (long breeding cycles), the harvesting of the entire plant (and hence the inability to make gains in harvest index), multiple harvests per year, the high genotype by environment interaction (G×E), the high costs of phenotyping, tetrasomic inheritance, and the high level of non‐additive variance (Acharya et al., 2016, 2020; Annicchiarico, Barrett, et al., 2015).…”
Section: Introductionmentioning
confidence: 99%
“…In the mid‐1990s a tetraploid component was added to the annual ryegrass program. In the late‐2010s molecular breeding and high‐throughput phenotyping efforts were incorporated into the forage breeding program (Benevenuto et al, 2019; Biswas et al, 2021), but no cultivars have resulted from this research to date.…”
Section: Methodsmentioning
confidence: 99%
“…Plant breeding is using omics approaches to improve genetics to obtain an ideal phenotype that will provide a greater and more consistent yield under a variety of environmental situations. As a result, phenomics combined with certain other omics methods holds the most hope in plant breeding (Biswas et al, 2021 ). Abiotic stress tolerance seems to be a critical feature in terms of yield persistence and potential.…”
Section: Phenomics Prospective In Legumesmentioning
confidence: 99%