JUNAIDI, MUKHLIS
(2014)
PENGARUH PEMBERIAN BEBERAPA ZAT PENGATUR TUMBUH TERHADAP PERTUMBUHAN SETEK GAMBIR (Uncaria gambir Roxb).
Other thesis, Universitas Andalas.
Abstract
PENGARUH PEMBERIAN BEBERAPA ZAT PENGATUR TUMBUH TERHADAP PERTUMBUHAN SETEK GAMBIR (Uncaria gambir Roxb.)
ABSTRAK
Penelitian mengenai “Pengaruh Pemberian Beberapa Zat Pengatur Tumbuh Terhadap Pertumbuhan Setek Gambir (Uncaria gambir Roxb.)” telah dilaksanakan di Kebun Percobaan Fakultas Pertanian Universitas Andalas dari bulan Juni sampai September 2011. Penelitian ini bertujuan mendapatkan zat pengatur tumbuh yang terbaik terhadap pertumbuhan setek gambir.
Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan enam perlakuan dan empat ulangan sehingga diperoleh 24 satuan percobaan. Data dianalisis dengan uji F dan uji F hitung perlakuan yang berbeda nyata dilanjutkan dengan Duncan’s New Multiple Range Test (DNMRT) pada taraf nyata 5%. Perlakuan yang diberikan yaitu Tanpa Zat Pengatur Tumbuh, Indole Buteric Acid (IBA) 2.000 ppm, Naphtalen Acetic Acid (NAA) 2.000 ppm, Indole Acetic acid (IAA) 2.000 ppm, Rapid root 20.000 ppm, dan Atonik 500 ppm.
Variabel yang diamati adalah umur muncul tunas pertama, panjang tunas, jumlah daun, total luas daun, berat segar daun, berat kering daun, panjang akar terpanjang, jumlah akar, berat segar akar, berat kering akar dan persentase setek jadi.
Hasil penelitian menunjukkan bahwa beberapa zat pengatur tumbuh yang diberikan belum menunjukkan pengaruh terhadap pertumbuhan setek gambir tetapi pada jumlah akar sudah memberikan pengaruh.
Kata kunci : gambir, zat pengatur tumbuh, setek.
THE EFFECT OF GROWTH SUBSTANCE PROVISION ON GAMBIER STEM-CUTTING GROWTH
(Uncaria gambir Roxb.)
ABSTRACT
The research about “The Effect of Growth Substance Provision on Gambier Stem-cutting Growth (Uncaria gambir Roxb.)” has been conducted in Experimental Farm, Faculty of Agriculture, Andalas University in June – September 2011. The objective was to obtain the optimum growth substance for gambier stem-cutting.
The analysis was conducted using completely randomized design with six-way treatments and four replications and obtained 24 experimental units. The data was analyzed using F-test. The treatments showing significantly different results then will be analyzed using Duncan’s New Multiple Range Test (DNMRT) with real extent 5%. The treatments are: without growth substance, Indole Buteric Acid (IBA) 2.000 ppm, Naphtalen Acetic Acid (NAA) 2.000 ppm, Indole Acetic Acid (IAA) 2.000 ppm, Rapid root 20.000 ppm, and Atonik 500 ppm.
The variables observed are: day of first shoots emerged, shoot length, number of leaves, total leaf area, leaf fresh weight, leaf dry weight, root length, number of roots, root fresh weight, root dry weight, and percentage of successful stem-cuttings.
The results indicated that some of growth substances showed no significant contribution on plant growth. However it had given significant effect to number of roots.
Key word : gambier, growth substance, stem-cutting.
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