Effect of light intensity on vascular development and seedling quality in Paricá

Authors

  • Monyck Jeane dos Santos Lopes Museu Paraense Emílio Goeldi https://orcid.org/0000-0003-3092-6683
  • Moacyr Bernardino Dias-Filho Embrapa Amazônia Oriental
  • Eniel David Cruz Embrapa Amazônia Oriental
  • Ely Simone Cajueiro Gurgel Museu Paraense Emílio Goeldi

DOI:

https://doi.org/10.14808/sci.plena.2021.121202

Keywords:

Schizolobium parahyba, xylem, shade

Abstract

Light is an essential environmental factor to plant growth. Therefore, this study aimed to analyze the influence of light intensity on vascular development and the quality of paricá seedlings (Schizolobium parahyba var. amazonicum (Huber ex Ducke). The seedlings were allocated under full sun, low, medium, and high shading intensities (0%, 25%, 50%, and 75% of shading, respectively). Diameter, plant height, SPAD index, biomass production and stem vascular development (xylem, cambium, and phloem) were measured. Dickson's quality index (DQI) was also calculated. The highest values ​​of biomass production, vascular development, and DQI were found in seedlings under low shading intensity. It was concluded that the light intensity influences the growth parameters in paricá and that the vascular development of the stem and the morphological attributes work together, explaining the radial growth and the increase in the quality of the seedlings, which was optimized in the seedlings grown under low shade intensity. Therefore, the best seedling quality and xylem production can be achieved by paricá seedlings under low shade intensity.

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Published

2022-01-14

How to Cite

Lopes, M. J. dos S., Dias-Filho, M. B., Cruz, E. D., & Gurgel, E. S. C. (2022). Effect of light intensity on vascular development and seedling quality in Paricá . Scientia Plena, 17(12). https://doi.org/10.14808/sci.plena.2021.121202

Issue

Vol. 17 No. 12 (2021): Dezembro/December 2021

Section

Articles

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Copyright (c) 2022 Monyck Jeane dos Santos Lopes, Moacyr Bernardino Dias-Filho, Eniel David Cruz, Ely Simone Cajueiro Gurgel

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