Perbandingan Semai Empat provenans Shorea gysbertsiana Burck Di Persemain = Growth Comparison of four Provenances of Shorea Gysbertsiana Burck in Nursery
ABSTRACT. Study on growth of Shorea gysbertsiana Burck seedling was conducted using four provenances, namely Bukit Baka, Gunung Bunga, Haurbentes and Sungai Runtin. The parameters measured were height growth and diameter of seedlings. Complete Randomized Design (CRD) was applied, where the provenances used as treatments. Twenty five seedlings were selected from each provenance with three replications. The result shows that after 12 months in nursery, variation of height growth and diameter growth between provenances are significantly different. Sungai Runtin provenance showed the highest growth performance of height(123.28 cm) and diameter (9.70 mm) than other provenances.
Key Words : Tengkawang, provenance, Shorea gysbertsiana, growth.
ABSTRAK. Studi pertumbuhan tingkat semai Shorea gysbertsiana Burck dilakukan terhadap empat provenans yaitu Bukit Baka, Gunung Bunga, Haurbentes dan Sungai Runtin. Variasi pertumbuhan yang diamati adalah tinggi dan diamater bibit. Rancangan Acak Lengkap (RAL) digunakan dengan provenans sebagai perlakuan. Dua puluh lima bibit diseleksi dari tiap provenans dengan tiga kali ulangan. Hasil penelitian menunjukkan bahwa pada umur 12 bulan di persemaian, perbedaan pertumbuhan tinggi dan diameter bibit diantara provenans sangat signifikan. Provenan Sungai Runtin menunjukkan pertumbuhan terbesar baik untuk tinggi (123,28 cm)dan diameter (9,70 mm) dibandingkan dengan provenans lainnya.
Kata Kunci : Tengkawang, provenans, Shorea gysbertsiana, pertumbuhan.
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