Deficiências de macronutrientes em Abobrinha Italiana (Cucurbita pepo L.): caracterização de sintomas e crescimento

Coelho, Viviane Amaral Toledo; Souza, Carla Giselly de; Souza, Ednardo Nascimento de; Lacerda, Luiza Gobira; Cardoso, Patrícia Alves

doi:10.33448/rsd-v9i3.2269

Cited by 6 publications

(3 citation statements)

References 8 publications

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“…The other two variables evaluated were the number and size of leaves whose most limiting nutrients were calcium and phosphorus, with a reduction of 44% and 33%, respectively, Rodrigues et al (1993) characterized the symptoms of calcium deficiency as, among others, deformation and reduction in the number and size of leaves and chlorosis. Results similar to those obtained with this experiment were exposed by Barreto et al (2017) and Coelho et al (2020).…”

Section: Biometric Analyzessupporting

confidence: 89%

Evaluation of the omission of nutrients in the mineral development and composition of young cupuaçuzeiro plants (Theobroma grandiflorum (Willd. ex Spreng.) Schum.) progeny 61

Almeida

Viégas

Alves

et al. 2021

RSD

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Include the abstract in English. (TNR font 10 – simple space) The objectives of the study were to evaluate the fertility of the Yellow Latosol medium texture in plants of cupuassu (Theobroma grandiflorum) progeny 61 and to characterize the visual symptoms of macronutrient and micronutrient deficiencies. The plants were grown in nutrient solution containing all macronutrients and micronutrients and in solutions with omission of N, P, K, Ca, Mg, S, B, and Zn, using the missing element technique. The experimental design was completely randomized with eleven treatments and five replications. Growth was evaluated through production and dry matter at 60 days after planting. The progeny showed market potential, as it is more productive than the others, but it presents nutritional requirements similar to those of the cultivars already studied. The nutrient required in greater quantities by the culture was nitrogen, but the omission, but limiting, was that of potassium for biometric variables. The best treatment was complete followed by omission of zinc, but the difference between them was significant. The levels of nutrients in the leaves were similar to those found by other authors in other cultivars. The decreasing order of treatments was C> Zn> T> N> P> Ca> Mg> S> B> K.

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Section: Biometric Analyzessupporting

confidence: 89%

Evaluation of the omission of nutrients in the mineral development and composition of young cupuaçuzeiro plants (Theobroma grandiflorum (Willd. ex Spreng.) Schum.) progeny 61

Almeida

Viégas

Alves

et al. 2021

RSD

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“…), e pertence à família das Cucurbitaceae (CPRA, 2014). A abóbora de porco (Cucurbita pepo L.) é uma olerícola que se adapta aos diferentes tipos de clima e solo, por esse motivo é cultivada em todas as regiões do Brasil (Coelho et al, 2020).…”

Section: Introductionunclassified

Qualidade de sementes de abóbora sob períodos de armazenamento e tratamento químico

Rodrigues

Vale

2022

RSD

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As informações acerca de metodologias para avaliação de vigor de sementes de olerícolas são menos estudadas, inclusive de espécies de menor interesse comercial, como é o caso das mais diversas espécies de abóboras. Estudos que envolvam o armazenamento dessas sementes e efeitos do tratamento químico sob o seu vigor são necessários para maior conhecimento da manutenção da qualidade de sementes de abóbora. O objetivo desse trabalho foi avaliar a qualidade de sementes de “Abóbora de Porco” sob diferentes períodos de armazenamento e tratamento químico. O experimento foi realizado no laboratório de análise de sementes do Instituto Federal Goiano - Campus Ceres. Os tratamentos foram: com e sem tratamento químico e cinco períodos de armazenamento (0, 30, 60, 90 e 120 dias). Foram realizadas as seguintes análises: pureza física, massa de mil sementes, grau de umidade, condutividade elétrica, germinação, massa seca de plântulas, emergência em campo e índice de velocidade de emergência. Os dados foram submetidos ao teste de Tukey (5%) pelo Sisvar e a análise de regressão. Observou-se que as sementes armazenadas perderam umidade e tiveram aumento da condutividade elétrica em função do armazenamento. Não houve diferença significativa na germinação de sementes com a aplicação ou não de tratamento químico nos períodos estudados. A emergência de plântulas com tratamento de sementes foi maior até os 90 dias.

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“…Another suggestion is phosphate fertilization, which allows for greater flexibility in the period of fallowing of pasture (8) , since phosphorus is crucial for plant metabolism, playing a key role in cell energy transfer, respiration and photosynthesis. It is also a structural component of the nucleic acids of genes and chromosomes, as well as of many coenzymes, phosphoproteins and phospholipids (9) . The low availability of phosphorus for growing plants is a predominant characteristic in Brazilian soils.…”

Section: Introductionmentioning

confidence: 99%

Forage availability and weight gain of goats on caatinga enriched with Urochloa trichopus (Hochst.) Stapf subjected to fallowing and fertilized with phosphate

et al. 2022

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The objective of this study was to evaluate the forage availability and performance of goats in thinned Caatinga enriched with Urochloa trichopus subjected to grazing fallowing and levels of phosphorus fertilization. Twenty-four F1 crossbred goats (Boer x Non-descript breed), whole, 15.0 ± 2.6 kg body weight were distributed in four paddocks (n = 6) according to body weight, age and physiological status. Animals grazed on Caatinga, under continuous stocking, and were gathered and kept in individual pens overnight. The experiment to evaluate animal performance was a randomized block design with 4 treatments (0, 11, 33 and 60 days of fallowing) and six replications. To determine dry mass production and floristic composition, phosphate fertilization was used in the doses of x P2O5 in a randomized block design with five treatments, 0, 30, 60, 90 and 120 kg P2O5 with 4 replications. Phosphate fertilization had an effect on the floristic composition of dicots and U. trichopus (P<0.05). There was an effect of pasture fallowing on the final weight of goats, with the lowest weight (20.40 kg) observed after 60 days of fallowing (P<0.05). Fallowing is not suitable for an area of vegetation in the caatinga, because there was a decrease in forage availability and quality in the dry period, resulting in a lower performance of animals.

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Deficiências de macronutrientes em Abobrinha Italiana (Cucurbita pepo L.): caracterização de sintomas e crescimento

Cited by 6 publications

References 8 publications

Evaluation of the omission of nutrients in the mineral development and composition of young cupuaçuzeiro plants (Theobroma grandiflorum (Willd. ex Spreng.) Schum.) progeny 61

Evaluation of the omission of nutrients in the mineral development and composition of young cupuaçuzeiro plants (Theobroma grandiflorum (Willd. ex Spreng.) Schum.) progeny 61

Qualidade de sementes de abóbora sob períodos de armazenamento e tratamento químico

Forage availability and weight gain of goats on caatinga enriched with Urochloa trichopus (Hochst.) Stapf subjected to fallowing and fertilized with phosphate

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