Evaluation of Seeding Rate and Cultivar Effects on Peanut (<i>Arachis hypogaea</i> L.) Seeded in 76-cm Row Spacing

Plumblee, Michael T.; Tubbs, R. Scott; Prostko, Eric P.; Smith, Nathan B.

doi:10.3146/ps17-16.1

Cited by 5 publications

(5 citation statements)

References 21 publications

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“…Maximum yields and greater economic viability have been observed with densities from 15.7 to 20.0 peanut seeds m −2 in the United States (Oakes et al., 2020; Plumblee et al., 2018). In Brazil, studies with densities of runner‐type peanut cultivars are rare.…”

Section: Introductionmentioning

confidence: 99%

Adjusting peanut plant density and potassium fertilization for different production environments

et al. 2023

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Peanut pod yield and its response to fertilizer-K can be affected by the environment × plant density interaction. Research was conducted with the objective of determining peanut growth and yield response to planting density and fertilizer-K application under rainfed conditions in Brazil and irrigation in the United States.The effects of plant planting density and K fertilization were more frequent in rainfed areas, compared to irrigated environments. Peanut leaf area index (LAI) and dry matter accumulation (DM) increased with increasing plant density (mainly at 30 days after plant emergence-average increments of 70% and 80% for LAI and DM, respectively), whereas the stomatal conductance was decreased, mainly in rainfed fields. In low-K soil, the application of 50 kg ha −1 of K increased leaf K concentration (12% [Brazil], first-year area and 28% crop rotation area) and stomatal conductance in rainfed fields, resulting in greater yield (23% [1340 kg ha −1 ; Brazil], first-year area) at low plant density. In the irrigated fields, yield increased with plant densities up to 19 plants m −2 . For rainfed crops, plant density exceeding 11 plants m −2 resulted in lower yield in the area of adequate K content in the soil. Therefore, in rainfed fields, plant density must be low to assure peanuts response to K. In irrigated environments, high plant density is less detrimental to peanut yield, but no increase is observed with plant density greater than 19 plants m −2 . Additionally, there was no yield increase with the application of 50 kg ha −1 of K, in irrigated environments.

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Section: Introductionmentioning

confidence: 99%

Adjusting peanut plant density and potassium fertilization for different production environments

et al. 2023

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“…Leaf area index in 2016 also presented higher values for twinrow peanut than single row when DOY< 60 (Figure 13A). A greater crop growth in twin-row peanut is also reported by Colvin et al (1985); Jaaffar andGardner (1988), andPlumblee (2015). Jaaffar and Gardner (1988) also linked the faster canopy closure of peanut in twin-row to its higher growth rate and light interception.…”

Section: Discussionmentioning

confidence: 60%

Influence of planting pattern on peanut ecosystem daytime net carbon uptake, evapotranspiration, and water-use efficiency using the eddy-covariance method

Zhang,

Leclerc,

Singh

et al. 2023

Front. Agron.

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Peanut is planted in a pattern of either single or twin rows in Georgia, USA. However, limited attention has been paid to the impact of planting pattern on the carbon footprint and how the net carbon uptake is intertwined with the amount of water used to determine the ecosystem water-use efficiency (WUE) in peanut. This paper reports on the relationship between the amount of carbon produced to the amount of water used in peanut, carbon dioxide flux, and crop evapotranspiration of peanut in a single- or in a twin-row planting pattern measured using the eddy-covariance method. To the best of our knowledge, the present study is unique in that it examines for the first time the effect of planting pattern on the net carbon uptake and WUE. The two-year study took place in contrasting weather conditions with the 2016 year experiencing a higher vapor pressure deficit and lower precipitation than in the 2018 year. In this study, field-scale daytime net carbon ecosystem exchange (CO2 fluxes), ET and WUE of single- and twin-row peanut were compared using the eddy-covariance technique. Results showed that in 2018, both the net carbon uptake from the atmosphere and the WUE of twin-row peanut were significantly greater than those in the single-row peanut by 7-10% and ~9% respectively, for pod filling and seed maturity growth stages (aGDD 1000-2000 and aGDD > 2000). In 2016, the net daytime carbon uptake and WUE of peanut were similar for both planting patterns during pod filling (aGDD 1000-2000). Higher precipitation and lower VPD in 2018 likely resulted in greater peanut yield in twin-row as compared to single-row with abundant precipitation. Owing to the fast canopy growth rate in twin-row peanut, results suggest that during the vegetative stage (aGDD<500) in 2016, both daytime net carbon uptake from the atmosphere and WUE were considerably greater in twin-row than single-row by 32% and 27%, respectively. Given that in both years, the ET from both planting patterns was similar, it appears that the determination of WUE in both planting patterns was more impacted by changes in daytime net carbon uptake than evapotranspiration. The results of this study suggest the possibility that the higher WUE at the critical stages of twin-row peanut in 2018 are likely to lead to greater yield than single-row peanut. This should be confirmed with further year-to-year investigations.

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“…GA-06G is one of the most popular cultivars throughout southeastern U.S. and its ability to yield and grade well in different environments, different row spacing and seed rates may be the contributing factors for its widespread adoption (Plumblee et al, 2018;Tubbs et al, 2011). In three yr of the study, GA-12Y cultivar outperformed GA-06G in yields in six out of 10 observations when planted on different planting dates.…”

Section: Resultsmentioning

confidence: 92%

“…It is common for the cultivars to show differences in peanut grade (Faircloth and Prostko, 2010). Plumblee et al (2018) reported that peanut cultivars affected TSMK while seeding rate did not show any effect on peanut grade. The TSMK results obtained in our study are in accordance with other studies which observed higher grade for GA-06G and TUFRunner 297 and slightly lower grade for GA12Y (Branch 2007 and2013;Tillman 2018).…”

Section: Resultsmentioning

confidence: 99%

Effects of Planting Date and Irrigation on Yield and Grade in Runner-type Peanut Cultivars in North Florida

et al. 2019

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Peanuts ( Arachis hypogaea L.) have been one of the most profitable crops in the southeastern coastal plains but with increasing cost of production, growers continually seek to lower inputs and enhance overall profitability of their farms. Peanut cultivars with high yield potential and disease resistance along with drought tolerance are therefore obvious choices for sustainable production. Runner-type peanut cultivars were evaluated for pod yield and grade for three yr. Five peanut cultivars were evaluated in 2014 and 2015 and six cultivars in 2016 at the North Florida Research and Education Center, University of Florida, Quincy, FL. Cultivar performance was observed at different planting dates, four in 2014 and three in 2015 and 2016, to evaluate impacts of early, mid, and late planting with and without irrigation. Georgia cultivar GA-12Y consistently yielded greater than the other varieties in all yr of the study. Average pod yield for GA-12Y was 5980 kg/ha for three yr compared to 5140 kg/ha, 4730 kg/ha, 4890 kg/ha for GA-06G, FloRun 107, and TUFRunner 511, respectively. Florida cultivar TUFRunner 297 yielded greater (5300 kg/ha) than the rest of Florida cultivars irrespective of the planting date and had higher proportion of total sound mature kernels (TSMK) compared to GA-12Y in two of the three yr. Planting date had no impact on peanut pod yield in 2014 and 2015. However, peanut yield for all the cultivars was higher at later planting dates in 2016. The advantage of irrigation was not always consistent in all the yr, likely due to high rainfall during the study yr, removing that advantage.

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Evaluation of Seeding Rate and Cultivar Effects on Peanut (Arachis hypogaea L.) Seeded in 76-cm Row Spacing

Cited by 5 publications

References 21 publications

Adjusting peanut plant density and potassium fertilization for different production environments

Adjusting peanut plant density and potassium fertilization for different production environments

Influence of planting pattern on peanut ecosystem daytime net carbon uptake, evapotranspiration, and water-use efficiency using the eddy-covariance method

Effects of Planting Date and Irrigation on Yield and Grade in Runner-type Peanut Cultivars in North Florida

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