Effects of Intrarow Spacing on Yield and Market Quality of Peanut (Arachis hypogaea L.) Genotypes1

Abstract Pod yields and grading data were analyzed for six peanut (Arachis hypogaea L.) genotypes grown in 91 cm rows while using three intrarow distances; 10.2 cm, 15.2 cm and 30.5 cm. Yields were analyzed for a 6-year period from 1975 to 1980 and grading data were analyzed for a 7-year period from 1974 to 1980. Three genotypes (Dixie Runner, UF714021 and UF439-16-6-3) showed no significant yield differences (all differences reported at the 5% level) among spacings. Florunner and Florigiant produced the same yields at 10.2 cm spacings as they did at 15.2 cm. Both cultivars showed a significant yield reduction at the 30.5 cm spacing. Early Bunch yields were significantly higher at 15.2 cm than at 30.5 cm, while the yield at 10.2 cm was intermediate, but was not significantly different from either 15.2 or 30.5 cm. Grading data included percentages of extra large kernels (ELK), total sound mature kernels, and Virginia pods. The percentage of ELK for Florigiant at 15.2 cm was significantly greater than the 30.5 cm spacing. Changes in intrarow spacings of the six gentoypes in this study produced no significant differences in any grading data with that exception. All the currently grown cultivars in these tests had yields with plant spacings at 15.2 cm that were not significantly different from yields at 10.2 cm. With good quality seeds and good production practices a considerable savings could be made with little or no yield reduction by planting at spacings near 15 cm.

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Growth Regulator Effects on the Market Quality of Five Virginia-Type Peanut Cultivars1

Peanut Science ◽

10.3146/i0095-3679-11-2-4 ◽

1984 ◽

Vol 11 (2) ◽

pp. 64-66 ◽

Cited By ~ 1

Author(s):

R. W. Mozingo ◽

J. L. Steele

Keyword(s):

North Carolina ◽

Succinic Acid ◽

Arachis Hypogaea ◽

Growth Regulator ◽

Market Quality ◽

Arachis Hypogaea L ◽

Production Practice ◽

Peanut Production ◽

Grade Yield

Abstract The growth regulator succinic acid 2, 2-dimethylhydrazide (SADH) was applied to the foliage of five virginia-type peanut (Arachis hypogaea L.) cultivars in 1980, 1981, and 1982 in Martin County, North Carolina, and Suffolk, Virginia. Treated and untreated peanuts at each location were harvested on two dates each year. Market grade, yield, and value/ha evaluations were made on the cultivars Florigiant, NC 6, NC 7, VA 81B, and NC 8C. Yield and value/ha within each cultivar were statistically different across years and locations. The growth regulator significantly reduced the percentage of fancy pods for all cultivars except VA 81B while significantly increasing the percentage of extra large kernels for all cultivars except NC 8C. The percentage of total kernels was not affected with Florigiant or NC 7, but significant reductions were observed with growth regulator application to NC 6, VA 81B, and NC 8C. The yield and value/ha of Florigiant and NC 6 increased significantly with growth regulator applications. Yield/ha of NC 7 increased with growth regulator application but was not statistically different; however, the NC 7 value/ha increased significantly. Growth regulator applications on NC 8C and VA 81B affected neither yield nor value/ha. Thus, applications of the growth regulator SADH can be a beneficial peanut production practice for some cultivars; however, the response within cultivars was inconsistent across years and locations.

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Oxidative metabolism and physiological quality of artifi cially aged Arachis hypogaea L. seeds

Revista Ciência Agronômica ◽

10.5935/1806-6690.20210054 ◽

2021 ◽

Vol 52 (4) ◽

Author(s):

Leandro Dias de Lima ◽

Edilma Pereira Gonçalves ◽

Keila Aparecida Moreira ◽

Caroline Marques Rodrigues ◽

Lidiana Nayara Ralph ◽

...

Keyword(s):

Arachis Hypogaea ◽

Oxidative Metabolism ◽

Arachis Hypogaea L ◽

Physiological Quality

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Effect of different levels of organic and inorganic fertilizers on growth, yield and quality of summer groundnut (Arachis hypogaea L.) grown on inceptisol

International Journal of Chemical Studies ◽

10.22271/chemi.2021.v9.i1g.11281 ◽

2021 ◽

Vol 9 (1) ◽

pp. 503-507

Author(s):

RS Dhandore ◽

BM Kamble ◽

PN Gajbhiye ◽

PC Bhosale ◽

PB Margal ◽

...

Keyword(s):

Arachis Hypogaea ◽

Growth Yield ◽

Inorganic Fertilizers ◽

Yield And Quality ◽

Arachis Hypogaea L ◽

Organic And Inorganic Fertilizers ◽

Different Levels

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Reaction of Select Peanut (Arachis hypogaea L.) Lines to Southern Stem Rot and Pythium Pod Rot Under Varied Disease Pressure

Peanut Science ◽

10.3146/i0095-3679-16-1-3 ◽

1989 ◽

Vol 16 (1) ◽

pp. 9-14 ◽

Cited By ~ 9

Author(s):

O. D. Smith ◽

T. E. Boswell ◽

W. J. Grichar ◽

C. E. Simpson

Keyword(s):

Arachis Hypogaea ◽

Disease Incidence ◽

Sclerotium Rolfsii ◽

Stem Rot ◽

Resistant Parent ◽

Breeding Lines ◽

Arachis Hypogaea L ◽

Significant Yield ◽

Considerable Resistance ◽

Disease Pressure

Abstract Eight breeding lines, three parents, and the cultivar Florunner were compared under two levels of disease pressure induced by Sclerotium rolfsii Sacc., or Pythium myriotylum Drechs. at each of two locations for three years to ascertain the effectiveness of the host plant resistance to each pathogen. Varied disease pressures were created by application of fungicides and supplement of fungal inoculum. Mean Florunner pod yields varied more than 1000 kg/ha as a result of the S. rolfsii treatments but the yields of the resistant TxAG-3 were not affected. Disease incidence, as measured by frequency of S. rolfsii infection sites and diseased pods, was much higher for Florunner than TxAG-3. Breeding lines for which TxAG-3 was a parent sustained significant yield reductions. The disease incidence in these lines was higher than the resistant parent, equal or less than Tamnut 74, their other parent, and less than Florunner. The grades of TxAG-3 and its derivatives were lower than Florunner. Pod rot incidence differed for the P. myriotylum treatments but pod yields were not different. TxAG-3 and Toalson sustained less pod disease than Florunner and Tamnut 74. The percent of diseased pod tissue for one derivative of Toalson was lower than Toalson and TxAG-3, and that of one TxAG-3 derivative was equal to its best parent. The breeding lines varied in reaction to the two diseases and some lines showed considerable resistance to both organisms.

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