PENGARUH SKARIFIKASI SUHU DAN LAMA PERENDAMAN TERHADAP KUALITAS FISIOLOGIS BENIH Eucalyptus teretricornis PADA DUA MEDIA TABUR YANG BERBEDA
Falchelery Rachmad Divansyah, Dr. Ir. Yeni Widyana N R, S.Hut., M.Sc. ; Prof. Ir. Eny Faridah, M.Sc., Ph.D., IPM.
2026 | Skripsi | KEHUTANAN
Eucalyptus teretricornis merupakan salah satu
spesies prospektif untuk pengembangan Zona Atsiri di Indonesia karena kandungan
sineolnya yang tinggi serta kemampuan adaptasinya pada berbagai kondisi lahan. Namun,
karena dormansi fisik kulit biji, pertumbuhan bibit dalam skala besar masih
terhambat oleh rendahnya daya berkecambah benih. Tujuan dari penelitian ini
adalah untuk mengetahui bagaimana skarifikasi melalui perlakuan lama perendaman
dan suhu, baik secara tunggal maupun bersamaan, memengaruhi kualitas fisiologis
benih E. teretricornis. Studi ini dilakukan pada dua media tabur yang
berbeda.
Penelitian ini menggunakan
Rancangan Acak Lengkap (RAL) dengan dua faktor, yaitu lama perendaman (48 jam (A1)
dan 168 jam (A2)) dan suhu (25°C (R) dan 4°C (K)). Faktor-faktor ini
digabungkan menjadi lima perlakuan (A1R, A1K, A2R, dan A2K) dengan tiga kali
ulangan, setiap ulangan terdapat 350 butir biji. Benih dikecambahkan pada dua
media tabur, yaitu pasir dan kertas saring. Daya berkecambah, kecepatan
berkecambah, tinggi kecambah, dan jumlah daun adalah parameter yang diamati dan
dianalisis menggunakan analisis varians (ANOVA) dua arah serta uji lanjut DMRT
pada taraf 5%. Setiap media tanam dianalisis secara terpisah.
Eucalyptus teretricornis is a promising species for developing essential oil zones in Indonesia due to its high cineole content and adaptability to various land conditions. However, due to the seed coat's physical dormancy, large-scale seedling production is still hampered by low germination rates. The purpose of this study was to determine how scarification through soaking time and temperature, either individually or in combination, affects the physiological quality of E. teretricornis seeds. This study was conducted on two different sowing media.
This study was designed as a Completely Randomized Design (CRD) with two factors: soaking time (48 hours (A1) and 168 hours (A2)) and temperature (25°C (R) and 4°C (K)). These factors were combined into five treatments (A1R, A1K, A2R, and A2K), each replicated three times, each replicate consisting of 350 seeds. Seeds were germinated on two sowing media: sand and filter paper. Germination percentage, germination speed, seedling height, and number of leaves were the parameters observed and analyzed using a two-way Analysis of Variance (ANOVA), followed by DMRT at a 5% significance level. Each sowing medium was analyzed separately.
The results showed that germination on filter paper yielded the highest germination rate (%) and the fastest germination speed (days), which were obtained from the A1K treatment combination (19.14%) and (6.24 days). However, the highest seedling height (cm) and the highest number of leaves (leaves) were produced by the A2R treatment combination (1.36 cm) and (3.72 leaves). Germination on sand medium yielded the highest germination rate (%) and the fastest germination speed (days), namely the combination of A1K (14.81%) and (4.75 days). However, the highest values for seedling height (cm) and number of leaves (leaves) were obtained from the A2R treatment combination (2.85 cm) and (7.42 leaves). The ANOVA results for the germination rate (%) showed significant differences across the media used.
Kata Kunci : E. teretricornis, skarifikasi, dormansi benih, daya berkecambah, media tabur
