Electronic Theses and Dissertation

Pinus merkusii merupakan jenis pohon konifer yang memiliki sejumlah keistimewaan
dan nilai ekonomi yang tinggi. Pohon ini dapat tumbuh dengan baik di daerah dataran rendah
hingga pegunungan dengan ketinggian 1.200-2.400m di atas permukaan laut. Salah satu
keunikan dari Pinus merkusii adalah kemampuannya untuk menghasilkan getah yang dikenal
sebagai gondorukem. Tujuan penelitian ini adalah menganalisis pengaruh diameter pohon pinus
terhadap produksi getah di Kabupaten Aceh Tengah. Penelitian ini dilaksanakan di Desa Kute
Rayang Kecamatan Linge Kabupaten Aceh Tengah. Penelitian ini telah dilaksanakan selama 75
hari sejak September-Desember 2023. Penelitian ini menggunakan Rancangan Acak Kelompok
dengan 3 kelas diameter dan 4 blok tanam (masing-masing perlakuan berbeda jumlah pohonnya
sesuai dengan yang ada di lapangan pada masing-masing blok tanam). Penelitian ini
mengunakan purposive sampling. Unit yang diteliti pada pohon pinus berjumlah 136 pohon
dengan perlakuan yang diteliti adalah diameter pohon dibagi dalam 3 kelas, yaitu kelas I= 20-
25cm, kelas II=26-30cm, dan kelas III= 30-35cm. Parameter yang diamati adalah keliling pohon,
suhu dan kelembaban udara, produksi per panen (gr/pohon/25 hari). Data produksi per panen
dianalisis dengan rancangan acak kelompok menggunakan IBM SPSS 26 dan uji BNT serta uji
korelasi pearson untuk melihat hubungan antara diameter pohon dan produksi getah pinus.
Berdasarkan analisis data produksi getah pinus dari tiga kali panen menunjukkan
diameter pohon berpengaruh signifikan terhadap hasil produksi. Panen 1, diameter 21-25 cm:
305,31 gr/pohon/25 hari, diameter 26-30 cm: 407,42 gr/pohon/25 hari, dan diameter 31-35 cm:
482,36 gr/pohon/25 hari. Panen 2 diameter 21-25 cm: 307,44 gr/pohon/25 hari, diameter 26-30
cm: 410,13 gr/pohon/25 hari, diameter 31-35 cm: 405,85 gr/pohon/25 hari. Panen 3 diameter 21-
25 cm: 330,45 gr/pohon/25 hari, diameter 26-30 cm: 413,25 gr/pohon/25 hari, diameter 31-35
cm: 489,93 gr/pohon/25 hari. Uji Anova menunjukkan perbedaan nyata antara kelas diameter.
Diameter yang lebih besar menghasilkan lebih banyak getah. Faktor lingkungan seperti suhu dan
kelembaban juga mempengaruhi produksi getah. Selama periode penelitian 75 hari lokasi
menunjukkan perbedaan suhu harian yang signifikan. Suhu berkisar antara 20-29ºC pada pagi
hari, meningkat menjadi 25-47ºC di siang hari dan sedikit menurun menjadi 23-31ºC di sore hari.
Begitu juga dengan kelembaban menunjukkan perbedaan dengan rentang 60-84% di pagi hari,
35-91% pada siang hari dan 50-93% di sore hari. Korelasi positif diameter batang pohon pinus
terdapat hubungan signifikan. Dengan kata lain, semakin besar dameter batang pinus semakin
banyak hasil produksi yang di dapatkan.
Kata Kunci: blok tanam pinus, kelas diameter batang pohon, produksi getah pinus, uji
korelasi pearson

Pinus merkusii is a type of conifer tree that possesses several special characteristics and high economic value. This tree can grow well in lowland areas to mountainous regions at altitudes of 1,200-2,400 meters above sea level. One of the unique features of Pinus merkusii is its ability to produce resin known as gondorukem. The aim of this research is to analyze the effect of the diameter of pine trees on resin production in Central Aceh Regency. This study was conducted in Kute Rayang Village, Linge District, Central Aceh Regency. The research was carried out over 75 days from September to December 2023. This study used a Randomized Block Design with 3 diameter classes and 4 planting blocks (each treatment had a different number of trees according to what was present in the field in each planting block). The research employed purposive sampling. The units studied consisted of 136 pine trees, with the treatments being the diameter of the trees divided into 3 classes: Class I = 20-25 cm, Class II = 26-30 cm, and Class III = 30-35 cm. The parameters observed were tree circumference, temperature and humidity, and production per harvest (g/tree/25 days). The production data per harvest were analyzed using a randomized block design with IBM SPSS 26, along with the BNT test and Pearson correlation test to examine the relationship between tree diameter and pine resin production. Based on the analysis of pine resin production from three harvests, it was found that tree diameter significantly affects production results. In Harvest 1, for diameter 21-25 cm: 305.31 g/tree/25 days, diameter 26-30 cm: 407.42 g/tree/25 days, and diameter 31-35 cm: 482.36 g/tree/25 days. In Harvest 2, diameter 21-25 cm: 307.44 g/tree/25 days, diameter 26-30 cm: 410.13 g/tree/25 days, and diameter 31-35 cm: 405.85 g/tree/25 days. In Harvest 3, diameter 21- 25 cm: 330.45 g/tree/25 days, diameter 26-30 cm: 413.25 g/tree/25 days, and diameter 31-35 cm: 489.93 g/tree/25 days. The ANOVA test showed significant differences between diameter classes. Larger diameters produced more resin. Environmental factors such as temperature and humidity also influenced resin production. During the 75-day study period, the location showed significant daily temperature differences. The temperature ranged from 20-29ºC in the morning, increasing to 25-47ºC during the day, and slightly decreasing to 23-31ºC in the afternoon. Similarly, humidity showed variation with a range of 60-84% in the morning, 35-91% during the day, and 50-93% in the afternoon. A positive correlation was found between the diameter of the pine tree trunk and resin production. In other words, the larger the diameter of the pine trunk, the greater the production obtained. Keywords: pine planting blocks, tree trunk diameter classes, pine resin production, Pearson correlation test