Sainfoin Has Natural Tolerance to Glyphosate

Lauriault, Leonard M.; Contreras, F.; VanLeeuwen, Dawn; Kirksey, R. E.

doi:10.1094/fg-2009-0821-01-br

Cited by 3 publications

(8 citation statements)

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“…Following a study in Logan, Utah at the Forage and Range Research Laboratory (Peel et al, 2004) it was noted that sainfoin was not injured by glyphosate. Lauriault et al (2009, 2008) report that they noted in earlier work that sainfoin seemed to be unaffected by glyphosate. The Lauriault et al (2009) short brief is the only documentation in the scientific literature regarding sainfoin tolerance to glyphosate.…”

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confidence: 92%

“…Lauriault et al (2009, 2008) report that they noted in earlier work that sainfoin seemed to be unaffected by glyphosate. The Lauriault et al (2009) short brief is the only documentation in the scientific literature regarding sainfoin tolerance to glyphosate. In their limited study they only report that sainfoin survives multiple applications of a single rate [1 qt per acre (equivalent to 841 g ae ha −1 )] of glyphosate; however, no tolerance threshold was established nor was any impact on yield determined.…”

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confidence: 92%

“…Although most of these reports describe instances of resistance where glyphosate was used repeatedly for weed control, there are exceptions such as that described for Chinese foldwing ( Dicliptera chinensis L.) (Yuan and Chen, 2002) and sainfoin ( Onobrychis viciifolia Scop.) (Lauriault et al, 2009).…”

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confidence: 99%

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Natural Glyphosate Tolerance in Sainfoin (Onybrychis viciifolia)

2013

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Sainfoin (Onobrychis viciifolia Scop.), a nonbloating forage legume, is purported to have tolerance to glyphosate [N‐(phosphonomethyl) glycine]. The effect on biomass yield (BMY) and survival of eight rates of glyphosate on seedlings and mature plants were determined. Treatment rates were 0, 210, 420, 841, 1681, 3363, 6725, and 13,450 g ae ha−1. Alfalfa (Medicago sativa L.) was included as susceptible check. The dose required to produce a 50% reduction (GR50) in sainfoin seedling BMY was 868 and 2984 g ae ha−1 at the first and second harvests, respectively. Alfalfa seedling BMY GR50 values were 331 and 463 g ae ha−1 at the first and second harvests, respectively. The dose estimated to cause 50% mortality (LD50) in sainfoin seedlings was beyond the highest treatment rate at 14,016 g ae ha−1, compared with alfalfa at 2068 g ae ha−1. Four weeks after a spring treatment, sainfoin and alfalfa mature plant BMY GR50 values were 2622 and 208 g ae ha−1, respectively. Biomass yield GR15 values from the same spring treatment were 1030 g ae ha−1 for sainfoin and 66 g ae ha−1 for alfalfa. Thirteen months following the spring treatments sainfoin and alfalfa GR50 values averaged 11,007 and 1093 g ae ha−1, respectively. Fall applied glyphosate BMY GR50 values from harvests the following spring were 12,949 g ae ha−1 for sainfoin and 755 g ae ha−1 for alfalfa. The LD50 for sainfoin spring and fall treatments on mature plants was estimated to be well beyond the highest treatment rate 13,450 g ae ha−1. The average LD50 for mature alfalfa plants was 583 g ae ha−1. Based on the LD50 values, sainfoin seedlings are over six times more tolerant, and mature plants over 20 times more tolerant to glyphosate than alfalfa. Based on the GR50 values, glyphosate has a 10‐fold greater negative impact on alfalfa BMY than it does on sainfoin; however, the GR15 values indicate a likely reduction in sainfoin BMY at glyphosate rates in the range of 841 g ae ha−1.

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Natural Glyphosate Tolerance in Sainfoin (Onybrychis viciifolia)

2013

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“…Tall fescue (Festuca arundinaceae Schreb.) (Lauriault et al, 2009;Peel et al, 2013). Doses required to cause 50% reduction (Gr 50 ) in sweetvetch seedling BM was 5025 and 1636 g a.e.…”

Section: Natural Glyphosate Tolerance In Sweetvetch Hedysarum Borealementioning

confidence: 99%

“…Examples of crops with documented tolerance to glyphosate include birdsfoot trefoil (Lotus corniculatus L.) (Boerboom et al, 1990) and sainfoin (Onobrychis viciifolia Scop.) (Lauriault et al, 2009;Peel et al, 2013).…”

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Natural Glyphosate Tolerance in Sweetvetch Hedysarum boreale

et al. 2015

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Sweetvetch (Hedysarum boreale Nutt.) is purported to tolerate glyphosate [N‐(phosphonomethyl) glycine]. Eight rates of glyphosate were tested for their effect on biomass (BM) and survival of seedlings and mature plants. Rates were 0, 210, 420, 841, 1681, 3363, 6725, and 13,450 g a.e. ha–1. Tall fescue (Festuca arundinaceae Schreb.) was included as a susceptible check. Doses required to cause 50% reduction (GR50) in sweetvetch seedling BM was 5025 and 1636 g a.e. ha–1 at first and second harvests, respectively. Tall fescue seedling BM GR50 values were 373 and 512 g a.e. ha–1 at first and second harvests, respectively. Seedling mortality in sweetvetch was not sufficient to estimate an LD50; however, in tall fescue the seedling LD50 was 987 g a.e. ha–1. Four weeks after spring field treatments, sweetvetch and tall fescue BM GR50 values were 3467 and 549 g a.e. ha–1, respectively. Thirteen months later BM GR50 estimates were 11,595 and 886 g a.e. ha–1 for sweetvetch and tall fescue, respectively. Fall‐applied glyphosate did not reduce BM in the sweetvetch sufficient to estimate a GR50. Tall fescue estimated BM GR50 was 413 g a.e. ha–1. At the three lowest treatments BM of sweetvetch mature plants was unaffected. Survival of mature sweetvetch plants was ≥70% precluding estimates of LD50 values. The LD50's for tall fescue spring and fall treatments was 751 and 541 g a.e. ha–1, respectively. Based BM GR15 values sweetvetch will withstand a glyphosate rate of 670 g a.e. ha–1 with no mortality or negative effect on subsequent harvests.

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Onobrychis viciifolia; a comprehensive literature review of its history, etymology, taxonomy, genetics, agronomy and botany

Mora-Ortiz

Smith

2018

Plant Genet. Resour.

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Onobrychis viciifolia(sainfoin) is a forage legume crop with many positive agronomic, environmental, nutritional and nutraceutical attributes. Farmers also benefit from its drought tolerance in areas of low rainfall and light free draining soil, mainly due to its deep taproot. It is resistant to most common pest and diseases and is a valuable resource for pollinators, specifically cultivated for honey production in some regions. It has many benefits for animals, being highly palatable and without danger of bloat, which can be life-threatening to livestock. Its decline in Northern Europe started during the Green Revolution and was impacted by changes towards more intensive farming. Unlike other forage legume crops such as red clover and lucerne, sainfoin does not respond well to inputs and is difficult to establish and maintain. Sainfoin could be classified as an ‘orphan crop’ with very little genetic improvement or agronomic studies in the past 60 years. In the past 5–10 years, however, there has been a resurgence in interest and this has given rise to a number of studies and initiation of systematic improvement of the crop, which is indispensable to its reintroduction into the farmed environment. Interest has been driven in part by considerable evidence to suggest that condensed tannins present in the legume foliage, together with other polyphenol compounds, have positive effects on animal nutrition together with anthelmintic properties. These compounds are also thought to play a role in environmental benefits. There remain many challenges to address in order to optimize the potential for cultivation of sainfoin and its use as a beneficial forage crop. This review makes particular reference to a recently completed project; ‘Legume Plus’, funded by the European Union and embracing a multi-disciplinary approach to both understand and improve the crop for farmers. The present review covers results from both this project and other studies during the past 5 years, also drawing on historic studies of etymology, taxonomy, genetics, agronomy and botany, aiming to be a useful resource for research and for practical plant breeders and agronomists.

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Sainfoin Has Natural Tolerance to Glyphosate

Cited by 3 publications

References 3 publications

Natural Glyphosate Tolerance in Sainfoin (Onybrychis viciifolia)

Natural Glyphosate Tolerance in Sainfoin (Onybrychis viciifolia)

Natural Glyphosate Tolerance in Sweetvetch Hedysarum boreale

Onobrychis viciifolia; a comprehensive literature review of its history, etymology, taxonomy, genetics, agronomy and botany

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