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- W3140627066 abstract "A mini-ixora é uma planta ornamental propagada comercialmente por meio de estaquia e apreciada para uso em paisagismo. O enraizamento das estacas, no entanto, ocorre em baixa porcentagem, resultando em baixa produção de mudas nos viveiros. Visando otimizar a propagação vegetativa desta espécie, avaliou-se o efeito de diferentes estimuladores de desenvolvimento radicular e substratos sobre o enraizamento de estacas da mini-ixora. As estacas semi lenhosas com 10 cm de comprimento foram cultivadas em estufa climatizada. O delineamento experimental utilizado foi em blocos casualizados em esquema fatorial 2 x 6, sendo dois substratos (S1: 100% de areia lavada e S2: 50% de bagaço de cana + 50% de vermiculita) e seis estimuladores de enraizamento (água - testemunha; extrato de tiririca; hormônio comercial; AIB 1000 mg/L; AIB a 2000 mg/L e AIB a 4000 mg/L). Utilizaram-se quatro repetições e dez estacas por parcela experimental. Após 120 dias, foram avaliados os seguintes parâmetros morfológicos: estacas enraizadas (%), mortalidade (%), comprimento do sistema radicular, qualidade do sistema radicular e número de brotos por estaca. A propagação vegetativa das estacas de mini-ixora utilizando como substrato a mistura de bagaço de cana-de-açúcar com vermiculita proporciona maior porcentagem de enraizamento, comprimento radicular e menor porcentagem de mortalidade das estacas. O cultivo das estacas de mini-ixora no substrato composto de bagaço de cana-de-açúcar e vermiculita dispensa o uso de estimuladores de enraizamento para a obtenção de estacas com melhor qualidade do sistema radicular. Palavras-chave: Estaquia. AIB. Produção de mudas. Propagação vegetativa. Rooting of mini-ixora cuttings (Ixora coccinea l. var. compacta) under different substrates and stimulators of radicular development Abstract Mini-ixora is an ornamental plant commercially propagated by cuttings. It is a species appreciated for use in gardens. The rooting of the cuttings, however, occurs in a low percentage, which results in low production of plants. In order to optimize the vegetative propagation of this species was studied the effect of different stimulators and substrates on rooting of mini-ixora cuttings. Cuttings with 10 cm were grown under controlled conditions. The experimental design was randomized blocks in a factorial scheme 2 x 6; two substrates (S1: 100% washed sand and S2: 50% sugarcane bagasse + 50% vermiculite) and six rooting stimulators (water; tiririca extract; commercial hormone; IBA 1000 mg/L; IAB 2000 mg/L and IBA 4000 mg/L). We used four replications and ten cuttings per experimental plot. After 120 days, we evaluated the following morphological parameters: percentage of rooted cuttings, percentage of mortality, length of the root system, root system quality and number of shoots per cutting. The vegetative propagation of the mini-ixora cuttings using as substrate a mixture of sugarcane bagasse with vermiculite provided the highest percentage of rooting, root length and lower percentage of mortality of the cuttings. The cultivation of mini-ixora cuttings on the substrate composed of sugarcane bagasse and vermiculite does not require the use of rooting stimulators to obtain cuttings with good quality of the root system. Keywords: Cuttings. IBA. Seedling production. Vegetative propagation." @default.
- W3140627066 created "2021-04-13" @default.
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- W3140627066 date "2021-03-19" @default.
- W3140627066 modified "2023-10-16" @default.
- W3140627066 title "Enraizamento de estacas de mini-ixora (Ixora coccinea L. var. compacta) sob diferentes substratos e estimuladores de desenvolvimento radicular" @default.
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- W3140627066 doi "https://doi.org/10.29069/forscience.2021v9n1.e813" @default.
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