Registration of NC 7 Peanut<sup>1</sup> (Reg. No. 22)

Wynne, J. C.; Mozingo, R. W.; Emery, D. A.

doi:10.2135/cropsci1979.0011183x001900040037x

Cited by 33 publications

(17 citation statements)

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“…Research addressing interactions of aldicarb and paraquat has not been conducted with cultivars that have been released more recently and are currently being planted by most farmers in the V-C region (Jordan, 2007a). Research by Herbert et al (1991) focused on the Virginia market type cultivar NC 7 (Wynne et al, 1979), and this cultivar is currently grown on less than 1% of hectares in the V-C region. The cultivar NC 7 has been replaced by some cultivars that require more days to reach optimum maturity.…”

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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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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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“…In 2009 and 2010, three transgenic lines (N70, P39, and W73), their non-transgenic parents (NC 7, Perry, and Wilson), and control commercial cultivars Bailey and CHAMPS were evaluated at the Hare Farm (37.13 N, 77.28 W) of the Tidewater Agricultural Research and Extension Center near Holland, VA. NC 7 is a high yielding cultivar with high percentage of extra-large kernels (ELK) and fancy pods, and very susceptible to Sclerotinia blight (Wynne et al, 1979). Perry is also a high yielding virginia-type cultivar but ELK and jumbo pod content are lower than NC 7 and Wilson.…”

Section: Methodsmentioning

confidence: 99%

Comparison of Three Transgenic Peanut Lines with Their Parents for Agronomic and Physiological Characteristics

et al. 2015

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Peanut (Arachis hypogea L.) is an important crop in the Virginia-Carolina (VC) region, but cool and wet falls may result in significant yield reductions due to Sclerotinia blight, caused by Sclerotinia minor (Jagger), a major disease in the region. Transgenic lines expressing a barley oxalate oxidase were previously shown to confer improved resistance to the disease. This research compared three blight resistant transgenic lines for oxalate oxidase, N70, P39, and W73 with their non-transgenic parents, NC 7, Perry, and Wilson, and high yielding check cultivars Bailey and CHAMPS. The objective was to ensure that the agronomic and physiological characteristics of the transformed lines were not negatively impacted by the transformation with oxalate oxidase before making recommendations for production. In 2009 and 2010, experimental plots were grown in two distinct fields for soil type and available water capacity for a total of four environments. The transgenic lines were statistically comparable with their parents, Bailey, and CHAMPS for maturity, pod yield, gross value, and pod brightness. P39 consistently showed less extra-large kernel (ELK) and jumbo pod content than Perry and the other genotypes. N70 and NC 7, on the other hand, had the highest ELK and jumbo pod content. Overall, the transgenic lines exhibited similar yield potential and returns with their parents, Bailey, and CHAMPS when grown in the VC region.

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“…These included 11 virginia-type cultivars released by N.C. State Univ. : NC 7 (Wynne et al, 1979), NC 9 (Wynne et al, 1986), NC 10C (Wynne et al, 1991a), NC-V 11 (Wynne et al, 1991b), NC 12C (Isleib et al, 1997), Gregory, Perry, Brantley (Isleib et al, 2006a), Phillips (Isleib et al, 2006b), Bailey (Isleib et al, 2011), and Sugg. Thirteen experimental lines and one unregistered cultivar were included (Table 1) as were three cultivars released by Virginia Polytechnic Inst.…”

Section: Methodsmentioning

confidence: 99%

Stability Analysis of Incidence of Tomato Spotted Wilt in Virginia-Type Peanut Cultivars and Breeding Lines

et al. 2013

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Tomato spotted wilt (TSW) caused by Tomato spotted wilt tospovirus (TSWV) has become a serious constraint to peanut (Arachis hypogaea L.) production in the Virginia-Carolina production area. Regression stability analysis was applied to TSW incidence data collected in 64 trials conducted over 17 years to determine if an array of 31 virginia-type cultivars and breeding lines exhibited variation in their reactions to increasing levels of general TSW intensity compared with the standard field-resistant cultivar Georgia Green and hirsuta-type line PI 576636. Eight cultivars (NC 7, NC 9, NC 10C, NC-V 11, NC 12C, Perry, Phillips, and Brantley) had mean effects greater than zero (P,0.01) while Bailey, four Bailey siblings, and N96076L, Bailey's resistant parent, all had mean effects less than zero (P,0.01). The deviations of the slope of regression on environmental index (b k ) for four of the eight susceptible cultivars were greater than zero, indicating greater than average reaction to increased levels of TSW. The b k for Bailey indicated that its response to increasing levels of TSW was flat. PI 576636 was confirmed as a highly field-resistant line. The slopes of Georgia Green, the standard TSWV-resistant runner-type cultivar, the Bailey siblings and N96076L did not differ from the average of all lines. The correlation between mean effect and b k was r 5 0.693, indicating that approximately half the variation in b k could be explained by mean effects. However, the regression analysis provided information useful in describing the TSW reactions of the lines and cultivars.

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Registration of NC 7 Peanut¹ (Reg. No. 22)

Cited by 33 publications

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

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

Comparison of Three Transgenic Peanut Lines with Their Parents for Agronomic and Physiological Characteristics

Stability Analysis of Incidence of Tomato Spotted Wilt in Virginia-Type Peanut Cultivars and Breeding Lines

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Registration of NC 7 Peanut1 (Reg. No. 22)

Cited by 33 publications

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

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

Comparison of Three Transgenic Peanut Lines with Their Parents for Agronomic and Physiological Characteristics

Stability Analysis of Incidence of Tomato Spotted Wilt in Virginia-Type Peanut Cultivars and Breeding Lines

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Registration of NC 7 Peanut¹ (Reg. No. 22)