UJI KETURUNAN LEGARAN (Alstonia spectabilis R.Br) PADA TINGKAT SEMAI
KUNTALA UTAMI DEWI, lr. W.W.Winarni, M.P
2008 | Skripsi | S1 KEHUTANAN
Pohon Legaran yang baik yaitu mempunyai sifat kenampakan fenotip
diameter batang besar, bentuk batang lurus, batang bebas cabang tinggi, akan
menghasilkan kayu yang baik. Metode untuk mewujudkan hasil tersebut dapat
dilakukan dengan program pemuliaan pohon, dan salah satu caranya yaitu dengan
uji keturunan dari pohon- pohon yang mempunyai kenampak:a1.1 fenotip yang baik.
Pohon dengan fenotip baik tersebut dipengaruhi oleh faktor genetik atau faktor
lingkungan.
Penelitian uji keturunan Legaran ini bertujuan untuk mengetahui persen
hidup semai, mengetahui variasi pertumbuhan tinggi, pertumbuhan diameter dan
jumlah ru A good Legaran tree which have fenotipe appearance such as big diameter
stem, straight stem, high free branch stem, will produces good wood. The method
to realize that result can be done by glorification tree program, one way is
generative test from the trees which have good fenotipe appearance. A tree with
good fenotipe influenced by genetic factor or environment factor.
Legaran generative test research aims to know the percentage seedling
grow, height grow variation, diameter grow and the number of shell seedling
inter-family, height grow variation, diameter and number shell seedling between
seed sources and heritability value, genetic correlation inter-height grow
· parameter, diameter growth and number seedling shell J month age.
The result of the shows seedling adaptation is high enough, it seems from
percentage seedling grow amount 95%. Height growth and diameter inter-family
shows significant differences with the best seed seedlot 28 and the worst 104. In
other hand, height growth and number shell inter-seed sources do not show
significant differences. Heritability appraisal value for height amount 0.63,
diameter growth 0.37. Results of genetic height and diameter growth correlation
amount 0.83, height growth and number of shells amount 0.45, and for diameter
growth and shells 0.5.
Kata Kunci : Uji keturunan, Legaran
