Frequência da irrigação ao final da produção em mudas de espécies lenhosas

Oro, Priscilla; Dranski, João Alexandre Lopes; Malavasi, Ubirajara Contro; Malavasì, Marlene de Matos

doi:10.5965/223811711522016094

Cited by 3 publications

(1 citation statement)

References 13 publications

(11 reference statements)

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“…ex DC) Mattos. Oro et al (2016), evaluating the effects of irrigation frequency at the end of the production process on seedlings of Enterolobium contortisiliquum (Vell.) Morong and Peltophorum dubium (Spreng.)…”

Section: Resultsmentioning

confidence: 99%

Morphological Evaluation of Gallesia Integrifolia Seedlings Under Different Water Management Systems

et al. 2020

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This study aimed to quantify the effects of water management during hardening on seedlings of Gallesia integrifolia (Spreng.) Harms, evaluating leaf temperature, morphometric variables, and their performance after hardening in sandy and clayey soil. Water regimes included irrigation for four weeks (daily, every two, three, and four days). Leaf temperature was recorded at the end of each irrigation cycle. Increases in height, root collar diameter, root dry mass, and aerial part dry mass were measured at the end of the hardening period. The seedlings irrigated every two and three days did not significantly differ (p > 0.05) from those irrigated daily. Irrigation every four days reduced the speed of aboveground growth and increased leaf temperature. The seedlings irrigated every three and four days were more resistant to water deficit than those from other treatments, showing severe symptoms of water deficit later.

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Section: Resultsmentioning

confidence: 99%

Morphological Evaluation of Gallesia Integrifolia Seedlings Under Different Water Management Systems

et al. 2020

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Morphophysiological responses of comfrey (Symphytum officinale) to water deficit

Silva

Hüther

Rodrigues

et al. 2022

Plant Biosystems - An International Journal Dealing with all As

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Manejo hídrico na rustificação em mudas de Maytenus ilicifolia [(Schrad.) Planch.]

2017

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ResumoAvaliou-se o efeito do tamanho da muda e do manejo da irrigação ao inal do ciclo de produção sobre a qualidade de mudas de Maytenus iliciloia. O experimento seguiu o delineamento inteiramente ao acaso em arranjo fatorial 2x3, em que mudas de duas classes de altura (maior ou menor que 18,0 cm) foram submetidas a três regimes hídricos (rega diária, rega a cada dois dias e redução gradativa da irrigação). Após oito semanas, quantiicaram-se atributos morfoisiológicos e de desempenho. A redução gradativa da irrigação promoveu maior taxa de assimilação líquida de carbono. A rega a cada dois dias possibilitou maior taxa de crescimento secundário, velocidade de acúmulo de biomassa nos tecidos aéreos e radiculares, com menor taxa de extravasamento de eletrólitos. Após o plantio, esses tratamentos mantiveram o maior teor relativo de água nas folhas (TRA). O TRA em mudas de menor tamanho foi signiicativamente maior até a terceira semana do plantio. Portanto, mudas de maior tamanho, submetidas à rustiicação por redução gradativa do regime de regas, apresentam melhor qualidade.Palavras-chave: Déicit hídrico; Espinheira-santa; Produção de mudas; Qualidade de mudas AbstractWater management in hardening Maytenus ilicifolia (Schrad.) Planch. seedlings. This study evaluated the effects of seedling height and irrigation management on M. iliciloia seedlings. The experiment used a completely randomized design in a 2 x 3 factorial arrangement. Seedlings of two height classes (greater than or less than 18.0 cm) were subjected to three irrigation regimes (daily irrigation, irrigation every other day, and gradual reduction of irrigation). After eight weeks, the morphophysiological and performance attributes of the seedlings were quantiied. Gradual reduction of irrigation promoted the highest rate of net carbon assimilation.Irrigating every other day resulted in greater secondary growth rate, biomass accumulation in the shoot and root tissues, and lower electrolyte leakage rate. After planting, these treatments maintained higher leaf relative water content (RWC). RWC in seedlings smaller than 18 cm was signiicantly higher until the third week after planting.Therefore, larger seedlings submitted to hardening by gradually reducing irrigation improves seedling quality.

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Frequência da irrigação ao final da produção em mudas de espécies lenhosas

Cited by 3 publications

References 13 publications

Morphological Evaluation of Gallesia Integrifolia Seedlings Under Different Water Management Systems

Morphological Evaluation of Gallesia Integrifolia Seedlings Under Different Water Management Systems

Morphophysiological responses of comfrey (Symphytum officinale) to water deficit

Manejo hídrico na rustificação em mudas de Maytenus ilicifolia [(Schrad.) Planch.]

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