Effect of soil media used in the nursery on growth of some mangrove seed-lings transplanted to the mudflat at Pattani Bay
ผลของดินที่ใช้เพาะกล้าต่อการเจริญเติบโตและอัตราการรอดตายของกล้าไม้ป่าชายเลนบาง
ชนิดเมื่อย้ายปลูกในแปลงปลูกพื้นที่หาดเลน อ่าวปัตตานี
Noparat Bamroongrugsa, Assoc. Prof., D. of Biology, F. of Sci., PSU.
Pichit Kaewwongsri, Division of General Affairs, President's Office, Pattani Campus, PSU.
Methee Eksirinimitara, Asst. Prof., Demonstration School, F. of Education, PSU.
Corresponding e-mail : bnoparat@ratree.psu.ac.th
Grant : TRF
Published : Sanit Aksornkoae (1999) Restoration and mangrove resource development for
the sustainable social and economic conditions of Thailand. Report for Thailand
Research Fund, Bangkok, pp : 283-290
Key words : mangrove planting, mangrove soil, mangrove restoration
The effects of soil types as growing media on growth and survival rates of some mangrove seedlings transplanted to the mudflat were carried out at Pattani Bay, southern Thailand. Three mangrove species used namely : Rhizophora apiculata, Bruguiera cylindrica and Ceriops tagal were initially grown from propagules in polyethylene bags. Four types of soil as growing media were sandy soil, muddy soil, sand mixed with farmyard manure (4 : 1) and sand mixed with mud and farmyard manure (3 : 1 : 1). All polyethylene bags with propagules were then placed in a nursery located near the coastline of the bay for 6 months. The statistical RCB design in the Factorial Experiment consist-ing of 12 treatments (25 seedlings for each treatment with 3 replications) was employed. One month after transplanting to mudflat area, the result showed that soil types as growing media had no signi-ficant effect on survival rates of seedlings. In contrast, seedlings from sandy soil medium showed
slow growth rate which could be due to their loosely root mass during transplanting. After 1 year, however, the survival rates were decreased to 67.33%, 72.00% and 80.33% with the seedling height of 64.69 cm, 87.40 cm and 58.62 cm for B. cylindrica, R. apiculata and C. tagal respectively. The decreasing survival rates could be the result of high sedimentation at the planted area.
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