Water management in hardening Maytenus ilicifolia (Schrad.) Planch. seedlings

This study evaluated the effects of seedling height and irrigation management on M. ilicilofia 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 regime...

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Main Authors: João Alexandre Lopes Dranski, Ubirajara Contro Malavasi, Marlene de Matos Malavasi
Format: Article
Language:English
Published: Universidade Federal de Santa Catarina 2017-02-01
Series:Biotemas
Subjects:
Online Access:https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2017v30n1p45
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spelling doaj-7e1c3f6de6954ff18e3ad29d173151442020-11-25T01:13:34ZengUniversidade Federal de Santa CatarinaBiotemas0103-16432175-79252017-02-013014554Water management in hardening Maytenus ilicifolia (Schrad.) Planch. seedlingsJoão Alexandre Lopes Dranski0Ubirajara Contro Malavasi1Marlene de Matos Malavasi2Faculdade Educacional de Medianeira, BrazilUniversidade Estadual do Oeste do Paraná, BrazilUniversidade Estadual do Oeste do Paraná, BrazilThis study evaluated the effects of seedling height and irrigation management on M. ilicilofia 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 quantified. 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 significantly higher until the third week after planting. Therefore, larger seedlings submitted to hardening by gradually reducing irrigation improves seedling quality.https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2017v30n1p45Drought stressEspinheira-santaSeedling productionSeedling quality
collection DOAJ
language English
format Article
sources DOAJ
author João Alexandre Lopes Dranski
Ubirajara Contro Malavasi
Marlene de Matos Malavasi
spellingShingle João Alexandre Lopes Dranski
Ubirajara Contro Malavasi
Marlene de Matos Malavasi
Water management in hardening Maytenus ilicifolia (Schrad.) Planch. seedlings
Biotemas
Drought stress
Espinheira-santa
Seedling production
Seedling quality
author_facet João Alexandre Lopes Dranski
Ubirajara Contro Malavasi
Marlene de Matos Malavasi
author_sort João Alexandre Lopes Dranski
title Water management in hardening Maytenus ilicifolia (Schrad.) Planch. seedlings
title_short Water management in hardening Maytenus ilicifolia (Schrad.) Planch. seedlings
title_full Water management in hardening Maytenus ilicifolia (Schrad.) Planch. seedlings
title_fullStr Water management in hardening Maytenus ilicifolia (Schrad.) Planch. seedlings
title_full_unstemmed Water management in hardening Maytenus ilicifolia (Schrad.) Planch. seedlings
title_sort water management in hardening maytenus ilicifolia (schrad.) planch. seedlings
publisher Universidade Federal de Santa Catarina
series Biotemas
issn 0103-1643
2175-7925
publishDate 2017-02-01
description This study evaluated the effects of seedling height and irrigation management on M. ilicilofia 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 quantified. 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 significantly higher until the third week after planting. Therefore, larger seedlings submitted to hardening by gradually reducing irrigation improves seedling quality.
topic Drought stress
Espinheira-santa
Seedling production
Seedling quality
url https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2017v30n1p45
work_keys_str_mv AT joaoalexandrelopesdranski watermanagementinhardeningmaytenusilicifoliaschradplanchseedlings
AT ubirajaracontromalavasi watermanagementinhardeningmaytenusilicifoliaschradplanchseedlings
AT marlenedematosmalavasi watermanagementinhardeningmaytenusilicifoliaschradplanchseedlings
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