Leaf anatomy and physiology of garlic cultivars related to tolerance to environmental factors

Authors

  • Yohanna Vassura Universidade Federal de Lavras, Departamento de Biologia, Setor de Botânica Estrutural, Trevo Rotatório Professor Edmir Sá Santos, s/no, Caixa Postal 3037, CEP 37203-202 Lavras, MG.
  • Evaristo Mauro de Castro Universidade Federal de Lavras, Departamento de Biologia, Setor de Botânica Estrutural, Trevo Rotatório Professor Edmir Sá Santos, s/no, Caixa Postal 3037, CEP 37203-202 Lavras, MG.
  • Orivaldo Benedito da Silva Universidade Federal de Lavras, Departamento de Biologia, Setor de Botânica Estrutural, Trevo Rotatório Professor Edmir Sá Santos, s/no, Caixa Postal 3037, CEP 37203-202 Lavras, MG.
  • Marcio Paulo Pereira Universidade Federal de Lavras, Departamento de Biologia, Setor de Botânica Estrutural, Trevo Rotatório Professor Edmir Sá Santos, s/no, Caixa Postal 3037, CEP 37203-202 Lavras, MG.
  • Orlando Gonçalves Brito Universidade Federal de Lavras, Departamento de Agricultura, Setor de Olericultura, Trevo Rotatório Professor Edmir Sá Santos, s/no, Caixa Postal 3037, CEP 37203-202 Lavras, MG.
  • Valter Carvalho de Andrade Junior Universidade Federal de Lavras, Departamento de Agricultura, Setor de Olericultura, Trevo Rotatório Professor Edmir Sá Santos, s/no, Caixa Postal 3037, CEP 37203-202 Lavras, MG.
  • Fabricio José Pereira Universidade Federal de Alfenas, Instituto de Ciências da Natureza, Rua Gabriel Monteiro da Silva, no 700, Centro, CEP 37130-001 Alfenas, MG.

Keywords:

Allium sativum, chlorophyll parenchyma, photosynthesis, transpiration

Abstract


 The objective of this work was to evaluate the physiological and anatomical characteristics of garlic cultivar leaves that indicate tolerance or susceptibility to environmental factors. The experiment was conducted in a greenhouse in a completely randomized design, with eight treatments (cultivars). The evaluated cultivars were Amarantes, BRS Hozan, Caçador, Crespo, Chinês Folha Fina, Chonan, Gigante Roxo Escuro, and Ito. The following physiological variables were evaluated: net photosynthetic rate, stomatal conductance to water vapor, transpiration, internal and external carbon, and water use efficiency. The anatomical characteristics were analyzed with a microscope coupled to a camera. The Chinês Folha Fina, Chonan, Gigante Roxo Escuro, and Crespo cultivars showed higher mean photosynthetic rates and thicker photosynthetic tissues than the others. The Chonan and Crespo cultivars stood out for their higher photosynthetic rates, higher stomatal indices, thicker cuticle and epidermis, and larger mesophyll intercellular spaces, which are characteristics common to plants tolerant to water deficit. The characteristics of the Chonan and Crespo garlic cultivars are related to drought tolerance, and those of BRS Hozan, Ito, and Caçador to susceptibility. 

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Published

2024-08-22

How to Cite

Vassura, Y., de Castro, E. M., da Silva, O. B., Pereira, M. P., Brito, O. G., Andrade Junior, V. C. de, & Pereira, F. J. (2024). Leaf anatomy and physiology of garlic cultivars related to tolerance to environmental factors. Pesquisa Agropecuaria Brasileira, 59(AB), e03368. Retrieved from https://apct.sede.embrapa.br/pab/article/view/27719

Issue

V.59, Jan./Dec., 2024 :Continuos publication

Section

HORTICULTURAL SCIENCE