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...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Universidade Federal de Santa Catarina
2017-02-01
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| Series: | Biotemas |
| Subjects: | |
| Online Access: | https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2017v30n1p45 |
| Summary: | 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. |
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| ISSN: | 0103-1643 2175-7925 |