Pengaruh Rootone-F dan Media terhadap Pertumbuhan Stek Pucuk Ulin (Eusideroxylon Zwageri T Et B)

Basir, Basir (2008) Pengaruh Rootone-F dan Media terhadap Pertumbuhan Stek Pucuk Ulin (Eusideroxylon Zwageri T Et B). Jurnal Hutan Tropis Borneo, 9 (22). pp. 1-6. ISSN 1412-4645


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Ulin (Eusideroxylon zwageri T et B) is one of tropical forest tree species that is still in the best-seller due to its strength and durability. Unfortunately, it tends to be extinct because of continuous exploitation. To protect the ulin trees from the extinction, they should be cultivated through juvenile cuttings because the cultivation of ulin through old branch cuttings has been unsuccessful. Based on the result of Asnowos’ research in 1996, ulin was able to be propagated through juvenile cuttings from a coppice garden of 2-3 years old with rootone-F as auxin. Yet, the optimum dosage of rootone-F per cutting was not known. Therefore, it was studied the effect of the variety of rootone-F doses on the growth of juvenile cuttings of ulin which were planted on sand and topsoil substrates. The Objective of research was to find out the optimum dosage of rootone-F and the appropriate substrate on the growth of the juvenile cuttings. Factors applied were rootone-F (A) and substrates (B). Rootone-F consisted of four levels i.e. A1 = 25 mg, A2 = 50 mg, A3 = 75 mg and A4 = 100 mg per cutting. Substrates consisted of three levels i.e. B1 = 100% sand, B2 = 50% sand + 50% topsoil, and B3 = 100% topsoil. The result showed that interaction between rotone-F and a substrate (AB) gave significant effect on the height increment of the cuttings. A dosage of 75 mg/cutting planted on topsoil (A3B3) was the best treatment on the height increment of the cuttings (the increment reached 0.91 cm on average within four months).

Item Type: Article
Uncontrolled Keywords: juvenile cutting, rootone-F, substrate, effect and growth/increment
Subjects: S Agriculture > SD Forestry
Depositing User: Mr Arief Mirathan - Eka Setya Wijaya
Date Deposited: 26 Jul 2017 03:52
Last Modified: 31 Jul 2017 07:49

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