Registration of Florunner Peanuts<sup>1</sup> (Reg. No. 2)

Norden, A. J.; Lipscomb, Ryan; Carver, W. A.

doi:10.2135/cropsci1969.0011183x000900060070x

Cited by 104 publications

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“…Contrary to initial expectation, the subline of the US runner (subspecies hypogaea) cultivar Florunner was classified in the mixed subcluster of the UPGMA analysis, and in the fastigiata subgroup of the STRUCTURE analysis. However, knowing the parentage of Florunner, the results are credible-Florunner was derived from a cross made in 1960 of the varieties ''Early Runner'' and ''Florispan'' (Norden et al 1969). ''Florispan'' is an A. hypogaea subspecies fastigiata var.…”

Section: Discussionmentioning

confidence: 99%

“…The present study was based on 96 genotypes, comprised of 92 accessions of the US peanut minicore collection, a subline, UF 439-16-10-3-2, of the US variety Florunner (Norden et al 1969), probable diploid progenitors Arachis duranensis K7988 and Arachis ipae¨nsis K30076 (Krapovickas and Gregory 1994;Seijo et al 2007), and the synthetic amphidiploid TxAG-6 (Simpson et al 1993) (Table 1). All genotypes used in the study except the diploid progenitors were tetraploids.…”

Section: Plant Materialsmentioning

confidence: 99%

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A first insight into population structure and linkage disequilibrium in the US peanut minicore collection

et al. 2011

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Knowledge of genetic diversity, population structure, and degree of linkage disequilibrium (LD) in target association mapping populations is of great importance and is a prerequisite for LD-based mapping. In the present study, 96 genotypes comprising 92 accessions of the US peanut minicore collection, a component line of the tetraploid variety Florunner, diploid progenitors A. duranensis (AA) and A. ipae¨nsis (BB), and synthetic amphidiploid accession TxAG-6 were investigated with 392 simple sequence repeat (SSR) marker bands amplified using 32 highly-polymorphic SSR primer pairs. Both distance-and model-based (Bayesian) cluster analysis revealed the presence of structured diversity. In general, the wild-species accessions and the synthetic amphidiploid grouped separately from most minicore accessions except for COC155, and were eliminated from most subsequent analyses. UPGMA analysis divided the population into four subgroups, two major subgroups representing subspecies fastigiata and hypogaea, a third group containing individuals from each subspecies or possibly of mixed ancestry, and a fourth group, either consisting of COC155 alone if wild species were excluded, or of COC155, the diploid species, and the synthetic amphidiploid. Modelbased clustering identified four subgroups-one each for fastigiata and hypogaea subspecies, a third consisting of individuals of both subspecies or of mixed ancestry predominantly from Africa or Asia, and a fourth group, consisting of individuals predominantly of var fastigiata, peruviana, and aequatoriana accessions from South America, including COC155. Analysis of molecular variance (AMOVA) revealed statistically-significant (P \ 0.0001) genetic variance of 16.87% among subgroups. A total of 4.85% of SSR marker pairs revealed significant LD (at r 2 C 0.1). Of the syntenic marker pairs separated by distances \ 10 cM, 11-20 cM, 21-50 cM, and [ 50 cM, 19.33, 5.19, 6.25 and 5.29% of marker pairs were found in strong LD (P B 0.01), in accord with LD extending to great distances in self pollinated crops. A threshold value of r 2 [ 0.035 was found to distinguish mean r 2 values of linkage distance groups statistically from the mean r 2 values of unlinked markers; LD was found to extend to 10 cM over the entire minicore collection by this criterion. However, there were large differences in r 2 values among marker pairs even among tightly-linked markers. The implications of these findings with regard to the possibility of using Vikas Belamkar-This work was performed in partial fulfillment of the requirements for the Master of Science degree.

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Section: Discussionmentioning

confidence: 99%

Section: Plant Materialsmentioning

confidence: 99%

A first insight into population structure and linkage disequilibrium in the US peanut minicore collection

et al. 2011

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“…Peanut is planted on a population or density basis (University of Georgia [UGA] Extension recommendation 5 19.7 seed/m of row; typical row spacing 5 91 cm; standard plant population 5 215,000 seed/ha) (Baldwin, 1997), but is sold by weight instead of quantity, therefore seed size plays a significant role in determining cost to plant. From the 1970s to the 2000s, the cultivars Florunner (Norden et al, 1969) and Georgia Green (Branch, 1996) dominated U.S. runner peanut hectares. However, recent cultivar releases are trending to a much larger seed size than the previous standards, but also have much greater levels of resistance to Tomato spotted wilt tospovirus (TSWV).…”

Section: Introductionmentioning

confidence: 99%

Row Pattern and Seeding Rate Effects on Agronomic, Disease, and Economic Factors in Large-Seeded Runner Peanut

et al. 2011

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Recent peanut cultivar releases are trending to a larger seed size, but have great resistance to tomato spotted wilt virus (TSWV). Larger-seeded cultivars cost more to plant than smaller at an equivalent population. Reduced seeding rates could save growers on seed costs and impede the spread of southern stem rot, but can reduce plant stands which can lower yields and increase TSWV incidence. Therefore, the objectives of this experiment were to compare seven peanut cultivars (Georgia Green, Georgia-06G, AT 3085RO, Florida-07, Tifguard, AP-3, and Georgia-03L) in single and twin row patterns at three seeding rates (17, 20, and 23 seed/m) on a sandy loam soil at Plains, GA for disease incidence, agronomic, and economic performance. Measured variables included yield and grade, plant height and stand, TSWV and southern stem rot incidence, and adjusted net revenue in 2008 and 2009. Twin rows outperformed single rows whenever differences occurred. The only factors consistently affected by reducing seeding rate were plant height and stand, both decreased at the lowest seeding rate. There was a trend toward lower yields (approximately 6% reduction) at the 17 seed/m rate in twin row pattern, although net returns were not diminished compared to the higher seeding rates since lower seed costs offset yield reductions. The cultivars Georgia-06G and Florida-07 had the highest yield and adjusted net revenue among the seven cultivars in both years. Tifguard and Georgia Green had lowest overall yields and would not be preferred cultivars in sandy loam soils. This study demonstrates that twin rows have higher yield, plant stands, and net revenue, plus reduced TSWV incidence than single row pattern, and a reduction in seeding rate to 17 seed/m can be made without serious risk of lost revenue. However, benefits of reducing seeding rate in twin rows were not as pronounced as they were for single rows, and exhibited a greater potential for lower yield. A grower planting in single rows would likely have the most to gain from planting fewer seed, especially under heavy southern stem rot pressure, but planting in twin rows would still be a preferred option over single rows.

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“…Runner cultivars in the United States and Brazil have been improved for yield, uniform maturity, pod and seed shape and size, and for processing and sensory tests, resulting in higher yield and better processing crops (Norden et al 1969). Another important characteristic for peanut market is oleic/linoleic ratio (O/L), which confers oxidative oil stability, preventing the rancidity of high-fat products.…”

Section: Introductionmentioning

confidence: 99%

Yield, market quality, and leaf spots partial resistance of interspecific peanut progenies

Suassuna

Moretzsohn

et al. 2015

Crop Breed. Appl. Biotechnol.

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Registration of Florunner Peanuts¹ (Reg. No. 2)

Cited by 104 publications

References 0 publications

A first insight into population structure and linkage disequilibrium in the US peanut minicore collection

A first insight into population structure and linkage disequilibrium in the US peanut minicore collection

Row Pattern and Seeding Rate Effects on Agronomic, Disease, and Economic Factors in Large-Seeded Runner Peanut

Yield, market quality, and leaf spots partial resistance of interspecific peanut progenies

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Registration of Florunner Peanuts1 (Reg. No. 2)

Cited by 104 publications

References 0 publications

A first insight into population structure and linkage disequilibrium in the US peanut minicore collection

A first insight into population structure and linkage disequilibrium in the US peanut minicore collection

Row Pattern and Seeding Rate Effects on Agronomic, Disease, and Economic Factors in Large-Seeded Runner Peanut

Yield, market quality, and leaf spots partial resistance of interspecific peanut progenies

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Product

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Registration of Florunner Peanuts¹ (Reg. No. 2)