Registration of ‘Lariat’ Peanut

Chamberlin, Kelly D.; Bennett, Rebecca S.; Damicone, J. P.

doi:10.3198/jpr2017.02.0009crc

Cited by 6 publications

(5 citation statements)

References 17 publications

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“…Damicone and colleagues also identified PI 274193, an accession from Bolivia, as having moderately high resistance and a spreading growth habit. PI 274193 was used in the Stillwater, OK, USDA‐ARS breeding program, resulting in the newly released, Sclerotinia ‐resistant runner cultivar, ‘Lariat’ (Chamberlin et al, 2017). Recent germplasm releases derived from interspecific crosses with A. cardenasii Krapov.…”

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Sclerotinia Blight Resistance in the US Peanut Mini‐Core Collection

Bennett¹,

Chamberlin²,

Damicone

2018

Crop Science

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Germplasm collections are valuable sources of desirable traits such as disease resistance, but many accessions have yet to be characterized. Seventy‐one accessions of the US peanut (Arachis hypogaea L.) mini‐core were evaluated from 2013 to 2015 for yield, seed quality characteristics, Sclerotinia blight (caused by Sclerotinia minor Jagger) resistance in the field, and for a Sclerotinia resistance marker. Twenty‐one accessions with <10% and six accessions with <5% disease incidence were identified from the 2 yr most favorable for disease. Resistant accessions were more likely to have a simple sequence repeat marker for Sclerotinia blight resistance, and a negative correlation between disease incidence and the presence of the resistance marker was observed. One resistant mini‐core accession, CC650 (PI 478819), was similar to commercial cultivars in yield (3617 kg ha−1 over 3 yr). CC650 also had the highest seed grade among entries at 73%, large kernels (73 g 100 seed−1), and a large proportion of extra‐large kernels. In growth chamber inoculation tests, CC650 was similar to the resistant cultivar ‘Georgia‐03L’. These results may be useful to peanut breeders seeking additional sources of resistance to Sclerotinia minor.

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Sclerotinia Blight Resistance in the US Peanut Mini‐Core Collection

Bennett¹,

Chamberlin²,

Damicone

2018

Crop Science

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“…Genotyping peanut germplasm collections has resulted in the identification of accessions with possible resistance to Sclerotinia blight (Chamberlin et al, 2010;Chamberlin, 2014;Engin et al, 2015). Coupling genotype and phenotype data can result in new sources of disease resistance being incorporated into cultivar releases (Chamberlin et al, 2018). One disadvantage to screening composite germplasm collections is that all peanut market-types are included.…”

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Genotyping of the Valencia Peanut Core Collection with a Molecular Marker Associated with Sclerotinia blight Resistance

Chamberlin¹,

Puppala

2018

Peanut Science

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Cultivated peanut, the second most economically important legume crop throughout the United States and the third most important oilseed in the world, is consistently threatened by various diseases and pests. Sclerotinia blight, (causal agents Sclerotinia sclerotiorum (S. sclerotiorum) and Sclerotinia minor Jagger (S. minor))is a major threat to peanut production in the Southwestern U.S., Virginia, and North Carolina and can reduce yield by up to 50% in severely infested fields. S. sclerotiorum has now been reported in areas of eastern New Mexico and west Texas where all U.S. grown Valencia peanuts are produced, commonly in organic cropping environments. Host plant resistance provides the most effective solution to managing Sclerotinia blight, especially in organic systems where pesticide use is not an option for disease control. To date, no Valencia cultivars with Sclerotinia blight resistance have been released. In this study, the Valencia peanut core germplasm collection was genotyped with a Simple Sequence Repeat (SSR) marker associated with Sclerotinia blight resistance in order to identify potential germplasm for use in breeding to develop Valencia peanut cultivars resistant to the disease. Thirty accessions from the Valencia peanut core collection have profiles consistent with other genotypes that exhibit less that 5% incidence of Sclerotinia blight under heavy disease pressure. The identified accessions, after field evaluation, may serve as potential sources of Sclerotinia blight resistance in Valencia peanut breeding programs.

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“…On June 5, 2019, 10 peanut genotypes (Georgia‐11J [Branch, 2012], Georgia‐09B [Branch, 2010], Lariat [Chamberlin et al, 2018], Ole [Chamberlin et al, 2015], NMSU‐M‐2 [New Mexico State breeding line], NMSU‐308 [New Mexico State breeding line], NuMex 01 [Puppala & Tallury, 2014], NMSU‐310 [New Mexico State breeding line], Span‐17 [Branch & Brenneman, 2018], and Wynne) representing four distinct market types (Runner, Spanish, Valencia, and Virginia) were planted in plots at the Grazinglands Research Laboratory, El Reno, OK (35° 34′ N; 98° 2′ W, 414 m a.s.l.). Additional information about the genotypes can be found in Table 1.…”

Section: Methodsmentioning

confidence: 99%

Forage accumulation and nutritive value of four peanut (Arachis hypogaea L.) market types in the US Southern Great Plains

et al. 2023

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Dual use crops are becoming popular as resources like land and water become scarcer. Annual peanuts are an important food crop grown worldwide that can also be used as forage or hay. Replicated trials evaluated the late season (≥15 weeks after planting) forage accumulations and nutritive values (acid detergent fiber, carbon content, crude protein, invitro true digestibility, neutral detergent fiber, nitrogen content, and relative feed value) of four market types near Clovis, NM and El Reno, OK in 2019 and 2020. Statistical analyses (p ≤ .05) showed all traits were affected by the interaction between market type and growing environment. Overall, forage accumulations for all market types ranged from 2.7 to 6.5 Mg ha−1 with relative feed values of 107–155. The location average across sites was 4.45 Mg ha−1 with relative feed value of 132. The Virginia market types produced large amounts of biomass. However, the Valencia market type generated the greatest nutritive values. This study indicates harvesting late‐season biomass of peanuts for hay may be an option that allows producers to generate more income from limited land and water resources. However, both market type and environmental factors, such as rainfall/irrigation, play important roles in production and forage nutritive values of peanut forage.

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Registration of ‘Lariat’ Peanut

Cited by 6 publications

References 17 publications

Sclerotinia Blight Resistance in the US Peanut Mini‐Core Collection

Sclerotinia Blight Resistance in the US Peanut Mini‐Core Collection

Genotyping of the Valencia Peanut Core Collection with a Molecular Marker Associated with Sclerotinia blight Resistance

Forage accumulation and nutritive value of four peanut (Arachis hypogaea L.) market types in the US Southern Great Plains

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