Nitrogen rate and source affects leaf elemental concentration and plant growth in muscadine grapes

Spiers, James M.; Braswell, John H.

doi:10.1080/01904169309364632

Cited by 5 publications

(4 citation statements)

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“…However, Ca is less mobile in leaf tissue and may accumulate in leaves as they mature (Benito et al, 2013). Our observed patterns of seasonal leaf-tissue nutrient concentration dynamics were similarly observed before in the muscadine cultivar Sterling (Spiers and Braswell, 1993). Fallahi et al (2005aFallahi et al ( , 2005b) also reported the negative correlation between leaf tissue concentration of N, Mg, and Ca, and a positive correlation between N and K in a wide range of bunch grape cultivars.…”

Section: Differences In Leaf-tissue Nutri-supporting

confidence: 85%

Leaf-tissue Nutrient Dynamics in Mature Muscadine Cultivars Carlos and Noble in Georgia and North Carolina

Rana

Smith

Hickey

et al. 2021

hortte

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More than 3000 acres of commercial muscadine (Vitis rotundifolia) vineyards exist in the southeastern United States. The muscadine wine industry is generating an economic impact of $1 billion in North Carolina alone. Muscadines have been cultivated since the 1800s, but muscadine vineyard fertilizer programs, tissue sampling, and nutrient sufficiency ranges continue to be based on anecdotal knowledge. While seasonal changes in tissue nutrient concentration are well documented in bunch grape (Vitis vinifera), questions remain about the seasonal and cultivar-dependent dynamics of muscadine leaf tissue nutrient concentrations. The aim of this study was to assess temporal and cultivar-related differences in tissue nutrient concentration of mature commercially grown muscadines. Leaf tissue nutrient concentration of the muscadine cultivars Carlos and Noble were assessed in three vineyards (Piedmont North Carolina, north Georgia, and south Georgia) at bloom, véraison, and postharvest in 2018 and 2019. Our results show that nitrogen (N), phosphorus (P), and manganese (Mn) were generally above the recommended sufficiency ranges, with calcium increasing over the season—and N, P, and potassium decreasing over the season. ‘Carlos’ had significantly higher levels of N and P, compared with ‘Noble’, while ‘Noble’ showed higher Mn concentration than ‘Carlos’. With this evaluation, we demonstrate the need for a modification in muscadine tissue nutrient sufficiency ranges that are based on cultivar and vine growth stage.

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Section: Differences In Leaf-tissue Nutri-supporting

confidence: 85%

Leaf-tissue Nutrient Dynamics in Mature Muscadine Cultivars Carlos and Noble in Georgia and North Carolina

Rana

Smith

Hickey

et al. 2021

hortte

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“…Ela pode exercer sua infl uência através de diferentes fontes de N (Lavín & Valenzuela, 1987) e, principalmente, por crescentes doses aplicadas de adubos nitrogenados (Retamales & Razeto, 1985;Wolf & Pool, 1988;Spayd et al, 1993;Speer & Braswell, 1993).…”

Section: Resultsunclassified

“…Os trabalhos realizados em diferentes regiões vitivinícolas, abrangendo uma considerável diversidade de porta-enxertos, copas, condições edafoclimá-ticas, manejo do solo e viroses, entre outros, mostram que houve diferenças nos teores de nutrientes nos tecidos da videira (Delas & Pouget, 1984;Marson, 1992;Brancadoro et al, 1994;Nikolaou et al, 2000;Garcia et al, 2001;Motosugi et al, 2002;Bavaresco et al, 2003;Alvarenga et al, 2004;Tandonnet et al, 2005). No Brasil, há trabalhos realizados em diferentes condições e relacionados especialmente ao teor de nutrientes na videira (Miele et al, 1987;Marson, 1992;Giovannini, 1995;Giovannini et al, 2001a, b).…”

Section: Introductionunclassified

Efeito do porta-enxerto no teor de nutrientes em tecidos da videira "cabernet sauvignon"

Miele

Rizzon

Giovannini³

2009

Rev. Bras. Frutic.

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RESUMO -A nutrição mineral da videira constitui-se em importante fator para a qualidade dos vinhos. Devido a isso, avaliou-se o efeito de porta-enxertos no teor de nutrientes em diferentes tecidos da videira 'Cabernet Sauvignon' (Vitis vinifera L.) na Serra Gaúcha. O experimento foi conduzido durante o ciclo vegetativo de 2004/2005, com os porta-enxertos Rupestris du Lot, 101-14, 3309, 420A, Kober 5BB, 161-49, SO4 e Paulsen 1103, enxertados em 1993 com a cv. 'Cabernet Sauvignon'. O delineamento experimental foi em blocos ao acaso, com oito tratamentos e três repetições, sendo quatro plantas/parcela. Coletaram-se folhas  separando-se os pecíolos dos limbos , cachos  separando-se as bagas das ráquis  e ramos, os quais foram posteriormente secados em estufa e pesados. Analisaram-se os nutrientes N, P, K, Ca e Mg. Os resultados mostram que houve efeito signifi cativo do porta-enxerto nos teores de N, P, K, Ca e Mg no limbo, pecíolo, ráquis e baga da videira 'Cabernet Sauvignon' e que este efeito variou em função do nutriente e do tecido considerado. Entretanto, não houve efeito signifi cativo do porta-enxerto no teor desses nutrientes no ramo da videira. Além disso, a ordem de grandeza do teor dos nutrientes variou em função do tecido avaliado. Assim, os teores de N e de Ca foram maiores no limbo; os de P e K, na ráquis; e o de Mg, no pecíolo. Termos para indexação: uva, Vitis vinifera, macronutriente, análise de tecido, análise foliar. EFFECT OF ROOTSTOCK ON NUTRIENT CONTENT OF 'CABERNET SAUVIGNON' GRAPEVINE TISSUESABSTRACT -Grapevine mineral nutrition is an important factor infl uencing wine quality. For this, the effect of rootstocks on the nutrient content in different tissues of 'Cabernet Sauvignon' grapevines (Vitis vinifera L.) grown in the Serra Gaúcha region was evaluated. The experiment was carried out during the 2004/2005 vegetative cycle with the rootstocks Rupestris du Lot, 101-14, 3309, 420A, Kober 5BB, 161-49, SO4, and Paulsen 1103. The experimental design was in randomized blocks, with eight treatments, three replicates, four plants/plot. Leaves  petioles were separated from the limbs , clusters  berries were separated from the rachis , and shoots were collected, dried in an oven, and weighted. N, P, K, Ca, and Mg were analyzed. Results show that there was a signifi cant effect of the rootstock on the contents of N, P, K, Ca, and Mg in limb, petiole, rachis and berry of the 'Cabernet Sauvignon' grapevine. This effect varied as a function of the analyzed nutrient and tissue. But there was not a signifi cant effect on the nutrients present in the shoot. Besides this, nutrient content varied according to the kind of tissue analyzed. In this way, contents of N and Ca were higher in limb; contents of P and K, in rachis; and contents of Mg, in petiole. Index terms: grape, Vitis vinifera, macronutrient, tissue analysis, leaf analysis. INTRODUÇÃOA formação de vinhedos com variedades da espécie Vitis vinifera L., com raras exceções, em todo o mundo, é feita utilizando-se de videiras enxertadas em port...

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“…In muscadines, however, there is a significant lack of standardization of tissue sampling methods and timing for the assessment of vineyard nutrition status [18][19][20][21][22]. Consequently, current recommendations of nutrient sufficiency ranges and tissue sampling time are based primarily on anecdotal knowledge [23][24][25][26], recommending whole leaf tissue sampling based on calendar month (June or early July), rather than on phenological stage of the vine [3,24].…”

Section: Introductionmentioning

confidence: 99%

Phenology Based Variability of Tissue Nutrient Content in Mature Muscadine Vines (Vitis rotundifolia cv. Carlos)

2022

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Muscadine (Vitis rotundifolia) is a grape species that is native to the Southeastern US, where several cultivars are grown commercially for processing or direct consumption. Phenology based tissue analysis to determine the nutritional status of a vine is a critical tool for growers to understand fertilizer demands in a vineyard. For European-style wine grapes, tissue sampling for nutrient content is well researched. However, current tissue sampling recommendations for muscadines are solely based on anecdotal knowledge. It is currently unknown if the type of tissue collected has an impact on variability and content of nutrients. Questions also remain as to whether or not seasonal vine phenology impacts tissue nutrient content. Without this knowledge it is difficult for a muscadine grower to make informed decisions on the nutritional status of a muscadine vine. Therefore, we investigated the impact of the phenological vine stage (bloom, fruit set, véraison) on nutrient content in two different tissue types (mature leaf vs. petiole), sampled at two different positions on a muscadine vine (opposite of cluster vs. shoot). The study was conducted over two growing seasons (2019 and 2020) in a commercial mature muscadine vineyard (‘Carlos’). Our results show that over both study years, the highest variability in nutrient content was found during bloom (May–June), while nutrient variability was lower during fruit-set and veraison. We also found fully mature leaf samples showed a lower variability in nutrient tissue content. Based on our results, sampling fully mature leafs from shoots remains the best practice. However, our results also indicate that tissue sampling later in the season might be a better practice, compared to the current practice of taking samples during June.

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Nitrogen rate and source affects leaf elemental concentration and plant growth in muscadine grapes

Cited by 5 publications

References 5 publications

Leaf-tissue Nutrient Dynamics in Mature Muscadine Cultivars Carlos and Noble in Georgia and North Carolina

Leaf-tissue Nutrient Dynamics in Mature Muscadine Cultivars Carlos and Noble in Georgia and North Carolina

Efeito do porta-enxerto no teor de nutrientes em tecidos da videira "cabernet sauvignon"

Phenology Based Variability of Tissue Nutrient Content in Mature Muscadine Vines (Vitis rotundifolia cv. Carlos)

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