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Revista mexicana de ciencias agrícolas
versión impresa ISSN 2007-0934
Resumen
MALDONADO-TORRES, Ranferi; ALVAREZ-SANCHEZ, Ma. Edna; ABARCA-CERVANTES, Alma Delia y ALMAGUER VARGAS, Gustavo. Cell changes in avocado leaves with calcium deficiencies. Rev. Mex. Cienc. Agríc [online]. 2020, vol.11, n.1, pp.13-23. Epub 02-Mar-2021. ISSN 2007-0934. https://doi.org/10.29312/remexca.v11i1.2209.
Calcium deficiency causes susceptibility to physiological diseases in fruits and reduced yield, in addition to generating curling, chlorosis and decreased growth of young leaves. In the present work, it was carried out in 2017, where structural and ultrastructural cellular measurements of avocado leaves were obtained, using a scanning and transmission electron microscope respectively and were correlated with the foliar nutritional concentration. It was observed that the thickness of the leaf, the length of the spongy parenchyma plus epidermis and the length and width of parenchyma in palisade did not have significant involvement with the calcium concentration alone, but with the nutritional relationships: BxCa, KxCa, ZnxCa, Mn/Ca and Ca/Mn. The width of the cell wall was affected by the relations with magnesium: Mn/Ca and Ca/Mn.
Palabras llave : cellular and ultracellular; electron microscopy; nutritional relationships.