Effects of Hydrogel Use in Cariniana pyriformis (Lecythidaceae) Seedlings Under Different Water Regimes
Abstract The effect of hydrogel (0, 3, 6, and 9 g per seedling) on the survival and growth of Cariniana pyriformis seedlings under different water regimes (absence of irrigation, 60% and 100% field capacity) in a sandy loam soil was assessed. The experiment was carried out in an agricultural nursery with drip irrigation, implementing a completely randomized block design in a split-plot scheme. After 20 weeks of evaluation in both treatments with irrigation, the maximum dose showed a slight increase (9%) in stem diameter and seedling height compared with the control treatment, although the aerial and root dry biomass did not show differences. For the treatment without irrigation, the survival had a linear response with increasing doses, from 24% (0 g per seedling) to 65% (9 g per seedling). C. pyriformis responds positively to hydrogel when a severe water deficit occurs.
| Main Authors: | , , |
|---|---|
| Format: | Digital revista |
| Language: | English |
| Published: |
Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro
2021
|
| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-80872021000200316 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Abstract The effect of hydrogel (0, 3, 6, and 9 g per seedling) on the survival and growth of Cariniana pyriformis seedlings under different water regimes (absence of irrigation, 60% and 100% field capacity) in a sandy loam soil was assessed. The experiment was carried out in an agricultural nursery with drip irrigation, implementing a completely randomized block design in a split-plot scheme. After 20 weeks of evaluation in both treatments with irrigation, the maximum dose showed a slight increase (9%) in stem diameter and seedling height compared with the control treatment, although the aerial and root dry biomass did not show differences. For the treatment without irrigation, the survival had a linear response with increasing doses, from 24% (0 g per seedling) to 65% (9 g per seedling). C. pyriformis responds positively to hydrogel when a severe water deficit occurs. |
|---|