Open AccessGermination Test of Two Different Types of Seed to Accelerate Reclamation and Rehabilitation of Ex-limestone Mining Land
Author(s) -
Suseno Amin,
Irdika Mansur,
Prijanto Pamoengkas,
Armaiki Yusmur
Publication year - 2022
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/959/1/012050
Subject(s) - germination , sowing , terminalia , horticulture , biology , land reclamation , seeding , botany , agronomy , ecology
The direct seeding method is a planting technique using seeds planted directly in the field without going through nursery stages. The technique was tested to rehabilitate ex-limestone mining of PT. Solusi Bangun Indonesia in Bogor. The seeds used in this study were from two different categories i.e. orthodox and recalcitrant seeds. Orthodox seeds used are Merbau ( Intsia bijuga ) and Ketapang ( Terminalia catappa ), while the recalcitrant seeds used are Jengkol ( Archidendron jiringa ), Bisbul ( Diospyros blancoi ), and Jackfruit ( Artocarpus heterophyllus ). This experiment design used was a completely randomized design (CRD) with five tree species as treatments and each species used 20 replications. The seeds are planted on ex-limestone mining land which has soil with a dominant sand fraction. Before field planting, the germination rates of the seeds were tested in the nursery and the result was Bisbul (97%), Merbau (87%), Ketapang (83%), Jackfruit (80%), and Jengkol (50%). Merbau and Jengkol germinated three days after sowing, while Ketapang has the longest time, it takes 20 days to germinate. Results of field planting showed that the tree species with the highest to the lowest germination rate were Bisbul (100%), Merbau (85%), Jackfruit (80%), Ketapang (55%), and Jengkol (40%). Merbau and Jengkol seeds germinated the fastest and Ketapang was the slowest. It is concluded that the tree species could be planted using the direct seeding method.