Document Type : Research Paper
Authors
1
Assist. Prof., Research Division of Natural Resources, Hormozgan Agricultural and Natural Resources Research and Education Center, AREEO, Bandarabbas, I.R. Iran
2
Assis. Prof., Research Division of Natural Resources, Hormozgan Agricultural and Natural Resources Research and Education Center, AREEO, Bandarabbas, I.R. Iran
3
Research Expert, Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO), Tehran, I.R. Iran
Abstract
The aim of this study was to evaluate the effects of density, situation of seedlings in intertidal zone, species and their interaction effects on growth characteristics and survival of seedling in tidal zone. 6-month seedlings of Avicennia marina (Forssk.) Vierh. and Rhizophora mucronata (Lam). were transferred to Tasbar firth in Hormozgan province (split split plot in randomized complete block design). Seedlings were planted with 1×1, 2×2 and 3×3 m densities and 10, 20 and 30 m distance planting in tidal zone. Vegetative characteristics and survival rate were investigated every 2 months for a year and analyzed using general linear model at the level of 95% confidence. Result showed, in 20 m planting distance, collar diameter, height, canopy diameter and survival rate of seedlings were highest (4.97 mm, 15.51 cm, 4.78 cm and 43.93% respectively). Also, collar diameter, survival percentage, height, canopy diameter and stem height to stem diameter of grey mangrove were, respectively, 3 mm, 37.81%, 11.01, 4.53 and 24.04 cm, higher than those of red mangrove (p<0.05). According to this study, it is recommended to cultivate grey mangrove in intertidal zone to increase the chances of afforestation success in Hormozgan province.
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