Resumo

MANDUJANO-PINA, Manuel et al. Cobalt as senescence retardant in postharvest of oriental hybrid Lilium. Rev. Chapingo Ser.Hortic [online]. 2012, vol.18, n.2, pp.239-252. ISSN 2007-4034.  https://doi.org/10.5154/r.rchsh.2010.09.034.

The quality of cut flowers is affected due to long periods of exposure to warm temperatures, water stress and mechanical damages. Several studies have identified technical issues to prolong the life of cut flowers, standing out the use of preservative solutions which may also inhibit ethylene biosynthesis. Cobalt chloride (Co) effects on weight, consumption of solution, SPAD units in leaves, content of nitrogen, cobalt, potassium, calcium, magnesium and iron, and postharvest life in stems of 'Star Gazer' and 'Star Fighter' Oriental Hybrid Lilium were evaluated. Floral stems were obtained from Villa Guerrero, Estado de México, and transported in dry conditions to the laboratory, where a 2 x 5 factorial experiment in a completely randomized design was conducted. Solutions containing sucrose as a carbon source at 4 % and the following Co concentrations: 0.0, 0.1, 0.2, 0.4 and 0.8 mM were used. This establishes that 0.1 and 0.2 mM Co delayed the symptoms of senescence in Lilium stems.

Palavras-chave : 'Start Fighter'; 'Star Gazer'; cut flower; ion content.

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