KOMBINASI UJI KETURUNAN DAN UJI SUMBER BENIH CENDANA (Santalum album L.).TINGKAT SEMAI

Kharisma, Prof.Dr.Ir. Hj. Oemi Hani'in S

1994 | Tesis | S2 Ilmu Kehutanan

Penelitian ini bertujuan untuk (1) mengetahui besB.rnyB. variasi genetH:. anta.r Famili dan anta.r Surober Benih Cendana; (2) menaksir nilai heritabilitas semai Cendana; dan (3) ruengetahui korelasi genetik antara pertumbuhan meninggi da.n diameter semai Cendana. Penelitian dimulai dengan survei tegakan Cendana di E?ula.u-pulau Timor, Jawa, dan Sumba. Disusul kenudian dengan Eksplorasi, Pengukuran Biji, Perkecambahan, dan E?enelitian seinai sampai umur 6 bula.n (siap ditanam di lapangan). Penelitir.,.n Semai dilaksanakan di Persema.ian Fakultas Kehutanan UGH Yogyakarta pada tahun 1993, menggunakan Rancangan Blok Lengkap Acak terdiri dari 6 Blok, 4 Tree plot, dan 115 Famili. Data dianalisis dengan Metode Analisis Varian Irregular Experiment. Hasil penelitia.n menunjukkan bahwa terdapa.t va.ria.si pada ukuran benih S. album antar Famili dan antar Sumber Benih. Pada sifat pertumbuhan meninggi semai S. album terdapat variasi diantara Famili dan di antara Sumber Benih. Pada sifat pertumbuhan diameter, variasi hanya terjadi diantara Famili tetapi tidak pada antar Sumber Benih. Nilai heritabilitas tinggi semai S. Rlbum umur 2 bulan sebesar 0,6086 dan pada umur 6 bulan sebesar 0,4907. Sedangkan nilai heritabilitas diameter S. album umur 6 bulan sebesar 0,4007. Korelasi antar sifat tinggi dan -sifat diameter S. album positif dan cukup erat dengan koefisien korelasi genetik sebesar 0,5233

The objectives of this experiment were : (1) to study genetic variation in heiht and stem diameter growth of seedlings; (2) to estimate the narrow sense heritability values; (3) to estimate the genetic correlation between height and stem diameter. The experiment was started with doing survei sandalwood stands in Timer, Java, and Sumba islands, followed with exploration, seed measurement, seed germination, and seedling growth study up to six months old where the sandalwood seedlings were ready to be planted in the field. Seedlings growth study was done at the Nursery of Faculty of Forestry, Gadjah Mada University Yogyakarta in 1993. The experiment followed a Randomized Complete Block Design with six replication of 4-tree row plots using one hundred and fifteen families from seven seed sources. Due to some missing observations, data analysis was done using irregular analysis of variance. The results indicated that there more significant differences between families, between and within seed sources in height growth. However, diameter growth varied among families only. Narrow sense heritability in height growth was high at two months old (h2 = 0,6036) and low at six months seedlings (h2 = 0,4907). Narrow sense heritability in stem diameter at six months old seedlings was low (h2 = 0,4007). The genetic correlation between the seedlings height and stem diam?ter was 0,5233 .

Kata Kunci : Cendana (Santalum Album L),Uji Benih,Keturunan,Ilmu Kehutanan