Yield physiology of peanuts (Arachis hypogaea L.) / by Robert Luther McGraw.

McGraw, Robert

doi:10.5962/bhl.title.42419

Cited by 4 publications

(4 citation statements)

References 31 publications

(51 reference statements)

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“…Historical runner market type production in the southeastern U.S. has traditionally been characterized by single-cultivar domination [10]. Dixie Runner [11] and Early Runner [12] were released in 1943 and 1952, respectively, and were the most widely grown runner cultivars between the time of their release and the early 1970s [13,14]. From 1972 to 1993, Florunner [15] was the predominant cultivar grown and represented between 60 and 95% of the peanut acreage [10].…”

Section: Introductionmentioning

confidence: 99%

Sound Splits as Influenced by Seed Size for Runner and Virginia Market Type Peanut Shelled on a Reciprocating Sheller

et al. 2021

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The objective of this study was to examine peanut (Arachis hypogaea L.) kernel percent sound splits as a function of sound mature kernel seed size when shelled on a reciprocating sheller. Data were compiled from a total of 139 field experiments conducted in the Virginia-Carolina region and Georgia from 2005 to 2020. Runner and Virginia peanut market types were graded according to United States Department of Agriculture (USDA) standards using standard sheller screens with upper grid sizes corresponding to the red pan from the pre-sizer of 10.3 × 19.1 mm (26/64 × 3/4 ″) and 13.5 × 25.4 mm (34/64 × 1 ″) with minimum bar grid clearances of 8.7 (11/32 ″) and 12.7 mm (1/2 ″), respectively. A subset of runner market type samples was graded using the Virginia sheller screen. Grade data per market type and sheller screen was analyzed separately. Among runner market types shelled with the standard runner-type screen, percent sound splits increased linearly with increasing seed size at the logit rate of 1.16 per sound mature kernel g (p < 0.001). Sound splits for Virginia and runner market types shelled on the standard Virginia-type screen did not significantly vary by kernel size (p = 0.939 and 0.687, respectively). Extra-large kernels (proportion) for Virginia types linearly increased with seed size at 1.91 per sound mature kernel g (logit scale) (p < 0.001). Runner market types sized 75 to 91 g/100 sound mature kernels (605 to 500 seed/lb) were estimated to have a 50% probability of a 2.3 to 4.5% or greater increase in sound splits when shelled with the standard runner-type screen compared to runner-type seed sized 55 g/100 sound mature kernels (820 seed/lb), respectively, equivalent to a potential deduction increase of 1.8 to 4.4 USD /1000 kg. For both Virginia and runner market types, seed weight linearly increased with pod weight at 0.169 and 0.195 g/g (p < 0.001), respectively. Results from this study may be used as a reference to suggest runner-type seed sizes above which larger reciprocating sheller screen utilization in line with USDA grading practices is warranted to reduce mechanically induced sound splits during grading and subsequent economic deduction penalties for corresponding farmer stock peanut.

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Section: Introductionmentioning

confidence: 99%

Sound Splits as Influenced by Seed Size for Runner and Virginia Market Type Peanut Shelled on a Reciprocating Sheller

et al. 2021

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“…The star also has a polluted atmosphere (Koester et al 1997) and recent HST/COS observations show that it is accreting from volatile-poor material that is similar in composition to the bulk Earth (Xu et al 2014). G29-38 is among the first variable white dwarfs discovered (Shulov & Kopatskaya 1974;McGraw & Robinson 1975). The newest addition to the wonders of G29-38 comes from the discovery of molecular hydrogen in its atmosphere, which provides an additional constraint of its stellar parameters (Xu et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Infrared Variability of Two Dusty White Dwarfs

Rogers

et al. 2018

ApJ

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The most heavily polluted white dwarfs often show excess infrared radiation from circumstellar dust disks, which are modeled as a result of tidal disruption of extrasolar minor planets. Interaction of dust, gas, and disintegrating objects can all contribute to the dynamical evolution of these dust disks. Here, we report on two infrared variable dusty white dwarfs, SDSS J1228+1040 and G29-38. For SDSS J1228+1040, compared to the first measurements in 2007, the IRAC [3.6] and [4.5] fluxes decreased by 20% by 2014 to a level also seen in the recent 2018 observations. For G29-38, the infrared flux of the 10 µm silicate emission feature became 10% stronger between 2004 and 2007, We explore several scenarios that could account for these changes, including tidal disruption events, perturbation from a companion, and runaway accretion. No satisfactory causes are found for the flux drop in SDSS J1228+1040 due to the limited time coverage. Continuous tidal disruption of small planetesimals could increase the mass of small grains and concurrently change the strength of the 10 µm feature of G29-38. Dust disks around white dwarfs are actively evolving and we speculate that there could be different mechanisms responsible for the temporal changes of these disks.

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“…Evidence for abnormal gene expression patterns such as inadequate imprinting or methylation of genes in reconstituted embryos with SCNT have been reported [11]. The low developmental potential of SCNTembryos has also been associated with inappropriate remodeling of chromatin by histone acetylation around developmentally specific genes [12,13]. These results of abnormal DNA methylation and histone acetylation in cloned embryos only reveal partial evidence for the incomplete reprogramming on the genome of SCNT embryos.…”

Section: Introductionmentioning

confidence: 99%

Protein profiles of bovine placenta derived from somatic cell nuclear transfer

et al. 2005

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Practical application of animal cloning by somatic cell nuclear transfer (SCNT) has been hampered by an extremely low success rate. To address whether placental dysfunction in SCNT causes fetal loss during pregnancy, we have used a global proteomics approach using 2-DE and MS to analyze the differential protein patterns of three placentae from the afterbirth of cases of postnatal death, derived from SCNT of Korean Native cattle, and three normal placentae obtained from the afterbirth of fetuses derived from artificial insemination. Proteins within a pI range of 4.0-7.0 and 6.0-9.0 were analyzed separately by 2-DE in triplicate. A total of approximately 2000 spots were detected in placental 2-DE gels stained with CBB. In the comparison of normal and SCNT samples, 60 spots were identified as differentially expressed proteins, of which 33 spots were up-regulated proteins in SCNT placentae, while 27 spots were down-regulated proteins. Most of the proteins identified in this analysis appeared to be related with protein repair or protection, cytoskeleton, signal transduction, immune system, metabolism, extracellular matrix and remodeling, transcription regulation, cell structure or differentiation and ion transport. One of up-regulated proteins in SCNT was TIMP-2 protein known to be related to extracellular matrix and remodeling during pregnancy. Western blot analysis showed an increased level of TIMP-2 in SCNT placenta compared to normal. Our results revealed composite profiles of key proteins involved in abnormal placenta derived from SCNT, and suggested expression abnormality of these genes in SCNT placenta, resulting in fetal losses following SCNT.

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Yield physiology of peanuts (Arachis hypogaea L.) / by Robert Luther McGraw.

Cited by 4 publications

References 31 publications

Sound Splits as Influenced by Seed Size for Runner and Virginia Market Type Peanut Shelled on a Reciprocating Sheller

Sound Splits as Influenced by Seed Size for Runner and Virginia Market Type Peanut Shelled on a Reciprocating Sheller

Infrared Variability of Two Dusty White Dwarfs

Protein profiles of bovine placenta derived from somatic cell nuclear transfer

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