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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Universidade Federal de Santa Catarina
2017-02-01
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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 |
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