Abstract
Gladiolus is an ornamental species produced for cut flowers and propagated by corms. The early flowering and increase in the number of flower buds, besides the production of commercial corms are constant challenges to be addressed in the crop improvement. Commercial production of ornamentals is technologically accelerated by means of growth regulators. Among them, the auxins stand out for their key role in the adventitious rooting and cell elongation. Alternatively, the humic substances present in the organic matter also have biostimulating effect, which is very similar to the auxinic effect. Therefore, this work aimed to study the growth and development of gladiolus in response to application of different concentrations of humic acids (HA) isolated from vermicompost. Corms were soaked for 24 hours in solutions containing 0, 10, 20, 30 and 40 mmol L-1 of C from HA. The corms were planted in 10-dm³ plastic bags filled with substrate and kept in a greenhouse. Growth of shoots and roots was evaluated. The results showed that the use of HA accelerates growth, and anticipates and increases flowering of Gladiolus. O gladíolo é uma planta ornamental para a produção de flores, cuja propagação é realizada por bulbos. A antecipação do florescimento e o aumento do número de botões florais, além da produção de bulbos comerciais, são problemas constantes a serem equacionados na cultura. A produção comercial de plantas ornamentais é tecnologicamente acelerada por meio de reguladores de crescimento. Dentre eles, vêm-se destacando as auxinas, hormônios vegetais com ação no enraizamento adventício e no alongamento celular. Alternativamente, as substâncias húmicas da matéria orgânica apresentam, também, efeito bioestimulante, muito semelhante ao efeito auxínico. Por essas razões, este trabalho teve como objetivo estudar o crescimento e desenvolvimento do gladíolo, em resposta à aplicação de diferentes concentrações de ácidos húmicos (AH), isolados de vermicomposto. Os bulbos foram imersos, por 24 horas, em soluções contendo 0, 10, 20, 30 e 40 mmol L-1 de C de AH. Em seguida, foram plantados em sacolas plásticas de 10,0 dm³, contendo substrato e mantidos em casa de vegetação. Foram avaliadas características de crescimento da parte aérea e do sistema radicular. Os resultados obtidos permitiram concluir que o uso de AH acelera o crescimento, antecipa e aumenta a floração do gladíolo.
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Claims 3
Claim · model-written summary
Humic acid treatment accelerated gladiolus growth.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the use of HA accelerates growth”
t0“Gladiolus”
Claim · model-written summary
Humic acid treatment advanced gladiolus flowering.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“anticipates and increases flowering of Gladiolus”
e1“the use of HA accelerates growth”
Claim · model-written summary
Humic acid treatment increased gladiolus flowering.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“anticipates and increases flowering of Gladiolus”
e1“the use of HA accelerates growth”
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See all 6 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.