Registration of ‘Gregory’ Peanut

Isleib, T. G.; Rice, P.; Mozingo, R. W.; Pattee, H. E.

doi:10.2135/cropsci1999.0001rcv

Cited by 44 publications

(41 citation statements)

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“…Georgia-07W, Georgia-06G, Georgia Greener, and GA 032902 had significantly higher dollar value return above variable cost per hectare compared to 'Florida-07' (Gorbet and Tillman, 2009), 'York', 'McCloud', 'Tifrunner' (Holbrook and Culbreath, 2007), 'C-99R' (Gorbet and Shokes, 2002), 'Carver' , 'AT-3085RO', 'AT-3081R' (Anderson and Harvey, 2006), 'AP-3', and 'Andru II' . Also in the same 2006 Max test (Table 4), Georgia-08V had significantly higher dollar value return above variable cost per hectare compared to the other virginia-type cultivars: 'Gregory' (Isleib et al, 1999), 'CHAMPS' (Mozingo et al, 2006), 'NC-V 11' (Wynne et al, 1991), and 'Perry' (Isleib et al, 2003). Similar results were found in the 2006 Min test.…”

Section: ------------------------------------% ----------------------supporting

confidence: 66%

Agronomic Performance and Economic Return among Peanut Genotypes with Maximum and Minimum Production Inputs

Branch¹,

Fletcher²

2010

Peanut Science

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Maximum (Max) and minimum (Min) peanut (Arachis hypogaea L.) input production tests were conducted for three consecutive years to evaluate agronomic performance and economic return among several runner and virginia genotypes. Mid-April planting dates were used each year. The Max tests included recommended production practices of seeding rate, fertilization, irrigation, and pesticides; whereas, the Min tests excluded irrigation, insecticides, and included only three fungicide sprays. Results showed variation among years, locations, and genotypes for TSWV and total disease incidence, pod yield, gross dollar value, and dollar value return above variable cost. The performance results also show the benefit to growers from agronomic and economic improvement with many of the newly released peanut cultivars in Georgia. Significant differences (P # 0.05) among the peanut genotypes for tomato spotted wilt disease [caused by Tomato spotted wilt virus (TSWV)] where noted. The lowest TSWV incidence was noted for the cultivars Georgia-06G,

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confidence: 66%

Agronomic Performance and Economic Return among Peanut Genotypes with Maximum and Minimum Production Inputs

Branch¹,

Fletcher²

2010

Peanut Science

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“…2-4). For example under pre-stress environment, when VPD ranged from approximately 1.4 to 2.5 kPa, 11 genotypes including Bailey (Isleib et al, 2011), CHAMPS , Gregory (Isleib et al, 1999), HST02-08, N03032EF, N05007, N05024J, VT003192, VT003069, VT024051, and VT024077 showed no relationship between g s and VPD. For these genotypes, the slopes of the regression ranged from 20.22 to 0.03 mol H 2 O m 22 s 21 (Table 3).…”

Section: Resultsmentioning

confidence: 93%

Transpiration Response to Vapor Pressure Deficit in Field Grown Peanut

et al. 2012

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Water deficit, i.e., rainfall amounts and distribution, is the most common abiotic stress that limits peanut production worldwide. Even though extensive research efforts have been made to improve drought tolerance in peanut, performance of genotypes largely depends upon the environment in which they grow. Based on greenhouse experiments, it has been hypothesized that stomata closure under high vapor pressure deficit (VPD) is a mechanism of soil water conservation and it has been shown that genotypic variation for the response of transpiration rate to VPD in peanut exists. The objective of this study was to determine the relationship between stomatal conductance (g s ) and VPD for field grown peanut in Virginia-Carolina (VC) rainfed environments. In 2009, thirty virginia-type peanut cultivars and advanced breeding lines were evaluated for g s at several times before and after rain events, including a moisture stress episode. In 2010, eighteen genotypes were evaluated for g s under soil water deficit. In 2009, VPD ranged from 1.3 to 4.2 kPa and in 2010 from 1.78 to 3.57 kPa. Under water deficit, genotype and year showed a significant effect on g s (P 5 0.0001), but the genotype 3 year interaction did not. During the water deficit episodes while recorded g s values were relatively high, g s was negatively related to VPD (R 2 5 0.57, n 5 180 in 2009; R 2 5 0.47, n 5 108 in 2010), suggesting that stomata closure is indeed a water conservation mechanism for field grown peanut. However, a wide range of slopes among genotype were observed in both years. Genotypes with significant negative relationships of g s and VPD under water deficit in both years were Florida Fancy, Gregory, N04074FCT, NC-V11, and VA-98R. While Florida Fancy, Gregory, and NC-V11 are known to be high yielding cultivars, VA-98R and line N04074FCT are not. The benefit of stomatal closure during drought episodes in the VC environments is further discussed in this paper.Key Words: Peanut, stomatal conductance, transpiration, vapor pressure deficit.In the Virginia-Carolina (VC) area, peanut is an important cash crop. According to the United Nations Conference on Desertification (UNEP, 1992), this region is characterized as a moist subhumid to humid region. This classification is based on the climatic aridity index: P/ETP, where P is annual precipitation and ETP is annual potential evapotranspiration calculated by the method of Penman (Doorenbos and Pruitt, 1977). Under historically moist conditions, over 90% of the current peanut farming is rainfed in the VC area. However, increased frequency and intensity of dry spells were recently observed due to uneven precipitation distribution during the summer months with negative effects on peanut yield and quality in the VC region. To increase peanut production under rainfed cropping systems in dry years, peanut cultivars with more effective use of water need to be developed for this region.In peanut (Devi et al., 2010) and soybean [Glycine max (L.) Merr.] (Fletcher et al., 2007;Sinclair et al., 2008;Sado...

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“…The cultivar Gregory (Isleib et al, 1999) was planted as described previously. Metam sodium was applied as described previously to control CBR and suppress nematodes.…”

Section: Comparison Of Paraquat Formulationsmentioning

confidence: 99%

Factors Influencing Response of Virginia Market Type Peanut (Arachis hypogaea) to Paraquat under Weed-Free Conditions

Carley¹,

Jordan

Brandenburg³

et al. 2009

Peanut Science

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Experiments were conducted during 2003 and 2004 to determine if peanut yield and market grade characteristics differed when paraquat was applied 24 to 28 days after emergence to peanut seeded in early, mid-, and late May and early June. Peanut pod yield and percentages of extra large kernels, total sound mature kernels, and farmer stock fancy pods were affected by planting date and paraquat independently. Paraquat did not affect yield compared with non-treated peanut regardless of planting date. In other experiments from 2003-2005, peanut was planted with or without aldicarb in the seed furrow and followed either paraquat applied 24 to 28 days after emergence or 2,4-DB applied in mid-August during and 2004, experiments included a no-paraquat control rather than 2,4-DB. Pod yield was reduced at 3 of 9 sites due to damage from tobacco thrips, Franklinella fusca Hinds, feeding when aldicarb was not applied. did not affect peanut response to paraquat, and interactions of paraquat formulation (Gramoxone MAX or Gramoxone INTEON) with bentazon, bentazon plus diclosulam, bentazon plus dimethenamid, bentazon plus imazethapyr, and bentazon plus S-metolachlor was similar to paraquat alone. Peanut injury and pod yield was the same when paraquat (Gramoxone INTEON) was applied alone or with carfentrazone and was similar to carfentrazone alone.

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Registration of ‘Gregory’ Peanut

Cited by 44 publications

References 0 publications

Agronomic Performance and Economic Return among Peanut Genotypes with Maximum and Minimum Production Inputs

Agronomic Performance and Economic Return among Peanut Genotypes with Maximum and Minimum Production Inputs

Transpiration Response to Vapor Pressure Deficit in Field Grown Peanut

Factors Influencing Response of Virginia Market Type Peanut (Arachis hypogaea) to Paraquat under Weed-Free Conditions

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