Distribución temporal de síntomas del amarillamiento de la hoja en la caña de azúcar en Cuba.

Osmany de la Caridad Aday-Díaz; José María Mesa-López; María de La O-Hechavarría; Félix René Díaz- Mujica; Irenaldo Delgado-Mora; Mayelin Morales-Sarmiento

doi:10.15517/am.v23i1.2139

Temporary distribution of symptoms of the sugarcane leaf yellowing in Cuba.

Authors

Osmany de la Caridad Aday-Díaz Estación Territorial de Investigaciones de la Caña de Azúcar
José María Mesa-López Instituto Nacional de Investigaciones de la Caña de Azúcar
María de La O-Hechavarría Instituto Nacional de Investigaciones de la Caña de Azúcar
Félix René Díaz- Mujica Estación Territorial de Investigaciones de la Caña de Azúcar
Irenaldo Delgado-Mora Estación Territorial de Investigaciones de la Caña de Azúcar
Mayelin Morales-Sarmiento Delegación Provincial del CITMA

DOI:

https://doi.org/10.15517/am.v23i1.2139

Keywords:

Leaf yellowing syndrome, climatic variables, phytoplasma, Brix.

Abstract

Temporary distribution of symptoms of the sugarcane leaf yellowing in Cuba. The objective of this study was to determine the temporal distribution of the physiological symptoms of leaf yellowing disease of sugarcane and its relationship with weather variables in thecentral region of Cuba. Field evaluations were conducted in three experiments in two locations, during the periodfrom 2003 to 2007. Monthly evaluations were carried out starting with the appearence of the first symptoms, usinga hand refractometer to record values of refractometric brix of the basal third of the third leaf with visible dewlap(TVD). Correlations of the values of observed brix were with climatic variables were obtained. The fi rst symptomsof leaf yellowing appeared in plants of five months of age, independently of the time of sowing, at the beginning of the winter season, and then decreased with the beginning of thespring. The brix of the leaf increased from November and reached a maximum in April, after which the plants became asymptomatic. The decrease of the maximum, minimumand monthly average temperatures below 30, 21 and 25°C,respectively, as well as monthly precipitations lower than 50mm, favored the expression of the symptoms, which weremore related to climate than to crop age, in coincidence with the dry period of maturation and harvesting time of sugarcane.

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How to Cite

Aday-Díaz, O. de la C., Mesa-López, J. M., de La O-Hechavarría, M., Díaz- Mujica, F. R., Delgado-Mora, I., & Morales-Sarmiento, M. (2012). Temporary distribution of symptoms of the sugarcane leaf yellowing in Cuba. Agronomía Mesoamericana, 23(1), 107–116. https://doi.org/10.15517/am.v23i1.2139

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Issue

2012: Agronomía Mesoamericana: Vol. 23, Issue 1 (January-June)

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Articles

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