SIMAMORA, YOSEPHTA PRATAMA (2025) PENGARUH SKARIFIKASI MEKANIK DAN KIMIA TERHADAP PEMATAHAN DORMANSI BENIH AREN (Arenga pinnata Merr.). S1 thesis, UNIVERSITAS MALIKUSSALEH.

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Abstract

Arenga pinnata Merr., commonly known as sugar palm, is an important palm species in addition to coconut due to its numerous benefits. This plant has great potential for further development in Indonesia and is commonly found in hilly areas with high humidity. One of the major challenges in sugar palm seed propagation is its prolonged dormancy period. High-quality seeds are essential for producing superior seedlings, yet dormancy prevents rapid germination. Mechanical and chemical scarification techniques are required to break seed coat dormancy, enhance water absorption (imbibition), and accelerate germination. This study aimed to evaluate the effects of mechanical and chemical scarification on dormancy breaking in Arenga pinnata seeds. The research was conducted from April to July 2025 at the Experimental Garden and Agroecotechnology Laboratory, Faculty of Agriculture, Malikussaleh University, Muara Batu Subdistrict, North Aceh Regency. A factorial Randomized Block Design (RCBD) with two factors: mechanical scarification no sanding (M0), sanding at the embryo point [M1], and sanding on the seed back (M2) and chemical scarification (control (K0), 45% HCl (K1), 75% H₂SO₄ (K2), and 1% KNO₃ (K3). A total of 12 treatment combinations were tested with 3 replications, resulting in 36 experimental units.The observed parameters included maximum growth potential, germination rate, germination speed, uniformity, vigor index, plumule length, and radicle length. Results showed that chemical scarification had a highly significant effect on maximum growth potential, germination rate, germination speed, uniformity, and vigor index. The mechanical scarification treatment of sanding at the embryo point produced the best results. Among chemical treatments, 1% KNO₃ yielded the most optimal outcomes across the measured parameters. Keywords: Seeds, Dormancy Fracture, Soaking, Seeds, Viability and Vigor.

Item Type:	Thesis (S1)
Subjects:	S Agriculture > S Agriculture (General)
Divisions:	Fakultas Pertanian > 54201 - Jurusan Agribisnis
Depositing User:	Yosephta pratama Simamora
Date Deposited:	19 Sep 2025 07:11
Last Modified:	19 Sep 2025 07:11
URI:	https://rama.unimal.ac.id/id/eprint/15834

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