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Title: | Analisis Laju Perkembangan Daun Kopi Arabika Gayo 3 Berbasis Growing Degree Days |
Other Titles: | Analysis of Leaf Growth Rate In Gayo 3 Arabica Coffee and Its relationship With Growing Degree Days |
Authors: | Impron A.SALAM, M.ISWARI |
Issue Date: | 2024 |
Publisher: | IPB University |
Abstract: | Penelitian ini bertujuan untuk mengetahui Growing Degree Days (GDD)
perkembangan daun bibit kopi arabika Gayo 3 di bawah paranet 75% dan paranet
(waring) 25% yang sudah dilapisi dengan plastik. GDD menghitung jumlah satuan
panas (? hari) yang dibutuhkan setiap pertambahan pasangan daun. Perhitungan
GDD dilakukan sejak munculnya pasangan daun pertama yaitu pada hari ke 86
setelah tanam sampai bibit kopi berumur 206 hari. Hasil pengamatan selama
periode tersebut pada paranet (waring) 25% menunjukkan rata – rata suhu udara
maksimum dengan nilai 34,8 ?, Suhu udara minimum 23,8 ?, dan suhu udara rata
– rata 27,4 ?. Paranet 75% memiliki fluktuasi suhu yang lebih rendah
dibandingkan dengan paranet (waring) 25%, dimana rata – rata suhu udara
maksimum pada paranet 75% menunjukkan nilai sebesar 32,1 ?, suhu udara
minimum 21,0 ?, dan suhu udara rata – rata 24,6 ?. Rata-rata GDD untuk setiap
pertambahan pasangan daun pada paranet 75% adalah 203? hari sedangkan pada
paranet (waring) 25% adalah 241 ? hari. Terdapat kecenderungan GDD bibit kopi
yang ditanam pada level radiasi yang lebih tinggi (paranet/waring 25%) memiliki
nilai yang lebih tinggi dibandingkan bibit kopi yang ditanam pada level radiasi yang
lebih rendah (paranet 75%). Meskipun demikian, hasil ini memerlukan kajian lebih
lanjut untuk melihat konsistensi nilai GDD, mengingat umumnya bibit tanaman
kopi merupakan tanaman yang membutuhkan naungan agar bisa tumbuh dan
berkembang lebih optimal.
Kata kunci: arabika, Growing Degree Days, laju perkembangan This research aims to determine the Growing Degree Days (GDD) of Gayo 3 Arabica coffee seedling leaf development under 75% shade net and 25% shade net (covered with plastic). GDD calculates the amount of heat units (? days) required for the growth of each pair of leaves. The GDD calculation was carried out from the emergence of the first pair of leaves on the 86th day after planting until the coffee seedlings were 206 days old. Observations during this period under the 25% shade net showed an average maximum air temperature of 34.8 ?, a minimum air temperature of 23.8 ?, and an average air temperature of 27.4 ?. The 75% shade net had lower temperature fluctuations compared to the 25% shade net, with an average maximum air temperature of 32.1 ?, a minimum air temperature of 21.0 ?, and an average air temperature of 24.6?. The average GDD for each pair of leaves under the 75% shade net was 203 ? days, whereas under the 25% shade net, it was 241 ? days. There is a tendency for the GDD of coffee seedlings planted under higher radiation levels (25% shade net) to be higher than those planted under lower radiation levels (75% shade net). However, these results require further study to see the consistency of GDD values, considering that coffee seedlings generally need shade to grow and develop optimally. Keywords: arabica, Growing Degree Days, development rate |
URI: | http://repository.ipb.ac.id/handle/123456789/155445 |
Appears in Collections: | UT - Geophysics and Meteorology |
Files in This Item:
File | Description | Size | Format | |
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cover_G2401201051_13d0d43cda7240ee8e83d0a08ae5e09e.pdf | Cover | 2.08 MB | Adobe PDF | View/Open |
fulltext_G2401201051_2627d2fc54024f6a9e03ce3b7397920b.pdf Restricted Access | Fulltext | 860.46 kB | Adobe PDF | View/Open |
lampiran_G2401201051_990c22b45ec448b0a7ee2bdb4e4c9d0d.pdf Restricted Access | Lampiran | 2.09 MB | Adobe PDF | View/Open |
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