Abstract
Christmas palm is a plant that has high economic value as an ornamental plant and is in great demand. Christmas palm seeds begin to germinate 3-4 weeks after planting, slow germination because of to seeds experiencing physical dormancy. To break dormancy can be done by scarification and immersion GA3. The purpose of this study was to determine the effect of scarification and GA3 on the germination and growth of christmas palm seedlings and the interaction between the two treatments. This research was carried out from December 2017 to March 2018 on experimental Field and Agronomy Laboratory Faculty of Agriculture and Animal Science State Islamic University Sultan Syarif Kasim Riau. The method used Randomized Complete Block Design (RCBD) with two factors and four replications. The first factor was the scarification (control and with scarification) and the second factor is immersion GA3 (0 ppm, 150 ppm, 300 ppm and 450 ppm). The results showed that scarification by means of sandpaper can increase the growth rate and height of the christmas palm plant.The dipping of GA3 with concentration of 450 ppm for 2 hours is the best concentration for growth speed. There was no interaction between scarification and GA3 immersion on all observational parameters both in germination and in the nursery of chritmas palm plants on the land.
Highlights
Christmas palm is a plant that has high economic value as an ornamental plant and is in great demand
The results showed that scarification by sandpaper scarification can increase the growth speed and height of the christmas palm plant
Pengaruh Lama Perendaman dan Konsentrasi Larutan Gibberellin Acid (Ga3) terhadap Viabilitas Benih dan Pertumbuhan Semai Baobab (Adansonia digitata L.)
Summary
Fakultas Pertanian dan Peternakan Universitas Islam Negeri Sultan Syarif Kasim Riau pada Bulan Desember 2017 sampai dengan Maret 2018. Penelitian ini menggunakan rancangan acak kelompok (RAK) dua faktor yang terdiri dari dua tahap yaitu di laboratorium dan di lapangan. Faktor pertama yaitu Skarifikasi (M): M0 (Kontrol), M1 (dengan Skarifikasi) dan Faktor kedua adalah perendaman dengan konsentrasi berbeda di dalam larutan GA3 (G): G0 (0 ppm), G1 (150 ppm), G2 (300 ppm), G3 (450 ppm). Benih yang telah tumbuh menjadi bibit diambil 6 bibit setiap ulangan untuk ditanam di polybag (1 tanaman per polybag) dan dipindahkan ke lapangan. Bahan yang digunakan dalam penelitian ini adalah benih palem putri, pasir, pupuk kandang, air dan hormon giberelin (GA3). Selanjutnya pemberian perlakuan pada benih palem putri yaitu dengan skarifikasi dan perendaman GA3. Perlakuan skarifikasi dilakukan dengan cara menggosok lapisan endocarp benih dengan kertas amplas halus dengan nomor P120 pada pangkal benih palem putri selanjutnya dilakukan perendaman selama 2 jam di dalam larutan GA3 sesuai dengan perlakuan (0, 150, 300, dan 450 ppm). Berpengaruh nyata maka dilanjutkan dengan uji Duncans Multiple Range Test (DMRT) dengan taraf 5%
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