Germination, vigor of seeds and growth of tomatos seedlings in different nutritional conditions / Germinação, vigor de sementes e crescimento de plântulas de tomateiro sob diferentes condições nutricionais

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

The experiment was carried in the laboratory of seeds and the greenhouse of the Department of Botany, Universidade Federal de Pelotas. The research was done with objective to evaluate and to describe the effect of different nutritional solutions on the germination, the vigor of the seeds and growth of tomato seedlings. The experimental design was entirely randomized with three replications. The means were compared by Tukey test (P 5%). The assay was conducted three times, in each one was retreated a macroelement, being constituted by three treatments: complete Hoaglands solution strength, Hoaglands solution strength minus one element, nitrogen (N), phosphorous (P) or potassium (K), and water. The following tests were leaded: germination (TG), first counting of germination (PCG), germination speed index (IVG), electric conductivity (CE), seedlings emergence (TE), emergence speed index (IVE), shoot (PA) and roots (SR) lengths of seedlings, fresh (MF) and dry (MS) matters of shoot and root seedlings, leaf area, leaf number, and pigments (chlorophylls and carotenoids) content. The physiological quality of seeds was affected by treatments, being the more sensible test the electric conductivity. The complete Hoagland solution strength produced increments on the major growth characteristics of seedlings under greenhouse conditions, meanly on dry

ASSUNTO(S)

fisiologia vegetal lycopersicon esculentum mill. growth of seedlings seeds quality tomateiros qualidade de sementes lycopersicon esculentum mill. crescimento de plântulas tomatos

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