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Crescimento e rendimento da calêndula africana influenciados pela beliscadura e GA₃

Crescimento e rendimento da calêndula africana influenciados pela beliscadura e GA₃

Manish Kumar / Ragini Bhardwaj Bhardwaj / V.M. Prasad

115,75 €
IVA incluido
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2026
Materia
Botánica y ciencias de las plantas
ISBN:
9786209881978
115,75 €
IVA incluido
Disponible

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O estudo intitulado 'Efeito da beliscadura e do ácido giberélico no crescimento, floração e rendimento da calêndula africana (Tagetes erecta L.) sob condições agroclimáticas de Prayagraj' foi realizado no Departamento de Horticultura, SHUATS, Prayagraj, durante a época das monções de 2019. A experiência avaliou o impacto de diferentes momentos de beliscadura e concentrações de ácido giberélico (GA₃) no crescimento, floração e rendimento da calêndula. Vinte tratamentos, incluindo combinações de beliscadura (30-45 dias após o transplante) e pulverizações de GA₃ (100, 200 e 300 ppm), foram organizados num Delineamento de Blocos Casualizados com três repetições. Os resultados mostraram que estes tratamentos influenciaram significativamente a altura da planta, o número de ramos, a propagação da planta, o número de botões e flores, o diâmetro da flor e o rendimento. O melhor desempenho foi registado com o tratamento T13 (beliscadura aos 35 dias + GA₃ 300 ppm), que produziu o maior crescimento da planta e o rendimento máximo de flores (cerca de 13,21 t/ha). O estudo concluiu que a combinação da beliscadura com a aplicação de GA₃ melhora o crescimento vegetativo, a floração e a produtividade global da calêndula africana sob as condições de Prayagraj.

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