Published

2023-08-31

Time of contact of phosphate fertilizer with Megathyrsus maximus (cv. Massai) seeds in relation to germination and growth

Tiempo de contacto del fertilizante fosfatado con semillas de Megathyrsus maximus (cv. Massai) en relación con la germinación y el crecimiento

DOI:

https://doi.org/10.15446/agron.colomb.v41n2.110036

Keywords:

seedling emergence, physiological quality, forage, seed germination (en)
emergencia de plántulas, calidad fisiológica, forraje, germinación de semillas (es)

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The aim of this research was to evaluate the effect of the contact time of simple superphosphate fertilizer with Massai grass (Megathyrsus maximus) seeds on the physiological quality of the seeds. The experiment was conducted with seeds of Massai grass in two conditions: laboratory and field. The experiment was carried out in Teresina, Piauí, Brazil. The experimental design was completely randomized, with three replicates for both conditions. The treatments consisted of seven contact times: 0, 3, 6, 9, 24, 48, and 72 h. Germination (GP) and emergence (EP) percentages, seedling height (SH), root length (RL), and germination speed index (GSI) were evaluated. The contact time of the fertilizer with the seeds had a significant effect on all variables, except root length and emergence at 7 d. For GP in the second data collection and GSI, there were no differences up to 3 h of contact; however, for GP in the first collection, SH and GSI at 21 d, the contact of seeds with fertilizer for 3 h already had negative effects on these variables, reducing them by 23.33%, 12.13 cm and 14.28% respectively. The longer the contact time between single superphosphate with M. maximus (cv. Massai) seeds, the lower the germination and vigor values.

El objetivo de esta investigación fue evaluar el efecto del tiempo de contacto del fertilizante superfosfato simple con semillas de pasto Massai (Megathyrsus maximus) sobre la calidad fisiológica de las semillas. El experimento se realizó con semillas de pasto Massai en dos condiciones: laboratorio y campo. El experimento se llevó a cabo en Teresina, Piauí, Brasil. El diseño experimental fue completamente al azar, con tres repeticiones para ambas condiciones. Los tratamientos consistieron en siete tiempos de contacto: 0, 3, 6, 9, 24, 48 y 72 h. Se evaluaron porcentajes de germinación (PG) y emergencia (PE), altura de plántula (AP), longitud de raíz (LR) e índice de velocidad de germinación (IVG). El tiempo de contacto del fertilizante con las semillas tuvo un efecto significativo en todas las variables, excepto en la longitud de las raíces y la emergencia a los 7 d. Para PG en la segunda toma de datos e IVG no hubo diferencias hasta las 3 h de contacto; sin embargo, para PG en la primera colecta, SH e IVG a los 21 d, el contacto de las semillas con el fertilizante durante 3 h tuvo efectos negativos sobre estas variables, reduciéndolas en 23.33%, 12.13 cm y 14.28% respectivamente. A mayor tiempo de contacto entre el superfosfato simple y las semillas de M. maximus (cv. Massai), menores valores de germinación y vigor.

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How to Cite

APA

Rodrigues, H. C. de A., Rodrigues Machado, R., Brito, R. C. T., Oliveira Neto, E. D. de and Souza, H. A. (2023). Time of contact of phosphate fertilizer with Megathyrsus maximus (cv. Massai) seeds in relation to germination and growth. Agronomía Colombiana, 41(2), e110036. https://doi.org/10.15446/agron.colomb.v41n2.110036

ACM

[1]
Rodrigues, H.C. de A., Rodrigues Machado, R., Brito, R.C.T., Oliveira Neto, E.D. de and Souza, H.A. 2023. Time of contact of phosphate fertilizer with Megathyrsus maximus (cv. Massai) seeds in relation to germination and growth. Agronomía Colombiana. 41, 2 (May 2023), e110036. DOI:https://doi.org/10.15446/agron.colomb.v41n2.110036.

ACS

(1)
Rodrigues, H. C. de A.; Rodrigues Machado, R.; Brito, R. C. T.; Oliveira Neto, E. D. de; Souza, H. A. Time of contact of phosphate fertilizer with Megathyrsus maximus (cv. Massai) seeds in relation to germination and growth. Agron. Colomb. 2023, 41, e110036.

ABNT

RODRIGUES, H. C. de A.; RODRIGUES MACHADO, R.; BRITO, R. C. T.; OLIVEIRA NETO, E. D. de; SOUZA, H. A. Time of contact of phosphate fertilizer with Megathyrsus maximus (cv. Massai) seeds in relation to germination and growth. Agronomía Colombiana, [S. l.], v. 41, n. 2, p. e110036, 2023. DOI: 10.15446/agron.colomb.v41n2.110036. Disponível em: https://revistas.unal.edu.co/index.php/agrocol/article/view/110036. Acesso em: 10 mar. 2025.

Chicago

Rodrigues, Helen Cristina de Arruda, Rayanny Rodrigues Machado, Rosemary Cordeiro Torres Brito, Edson Dias de Oliveira Neto, and Henrique Antunes Souza. 2023. “Time of contact of phosphate fertilizer with Megathyrsus maximus (cv. Massai) seeds in relation to germination and growth”. Agronomía Colombiana 41 (2):e110036. https://doi.org/10.15446/agron.colomb.v41n2.110036.

Harvard

Rodrigues, H. C. de A., Rodrigues Machado, R., Brito, R. C. T., Oliveira Neto, E. D. de and Souza, H. A. (2023) “Time of contact of phosphate fertilizer with Megathyrsus maximus (cv. Massai) seeds in relation to germination and growth”, Agronomía Colombiana, 41(2), p. e110036. doi: 10.15446/agron.colomb.v41n2.110036.

IEEE

[1]
H. C. de A. Rodrigues, R. Rodrigues Machado, R. C. T. Brito, E. D. de Oliveira Neto, and H. A. Souza, “Time of contact of phosphate fertilizer with Megathyrsus maximus (cv. Massai) seeds in relation to germination and growth”, Agron. Colomb., vol. 41, no. 2, p. e110036, May 2023.

MLA

Rodrigues, H. C. de A., R. Rodrigues Machado, R. C. T. Brito, E. D. de Oliveira Neto, and H. A. Souza. “Time of contact of phosphate fertilizer with Megathyrsus maximus (cv. Massai) seeds in relation to germination and growth”. Agronomía Colombiana, vol. 41, no. 2, May 2023, p. e110036, doi:10.15446/agron.colomb.v41n2.110036.

Turabian

Rodrigues, Helen Cristina de Arruda, Rayanny Rodrigues Machado, Rosemary Cordeiro Torres Brito, Edson Dias de Oliveira Neto, and Henrique Antunes Souza. “Time of contact of phosphate fertilizer with Megathyrsus maximus (cv. Massai) seeds in relation to germination and growth”. Agronomía Colombiana 41, no. 2 (May 1, 2023): e110036. Accessed March 10, 2025. https://revistas.unal.edu.co/index.php/agrocol/article/view/110036.

Vancouver

1.
Rodrigues HC de A, Rodrigues Machado R, Brito RCT, Oliveira Neto ED de, Souza HA. Time of contact of phosphate fertilizer with Megathyrsus maximus (cv. Massai) seeds in relation to germination and growth. Agron. Colomb. [Internet]. 2023 May 1 [cited 2025 Mar. 10];41(2):e110036. Available from: https://revistas.unal.edu.co/index.php/agrocol/article/view/110036

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