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Ketahanan 13 Nomor Koleksi Plasma Nutfah Jambu Mete terhadap Penyakit Busuk Akar Fusarium Dani, Dani; Taufiq, Efi; Supriadi, Handi; Randriani, Enny; Wicaksono, Ilham Nur Ardhi
Jurnal Tanaman Industri dan Penyegar Vol 3, No 2 (2012): Buletin Riset Tanaman Rempah Dan Aneka Tanaman Industri
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

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Busuk akar Fusarium merupakan salah satu penyakit penting yang menyerang tanaman jambu mete pada fase bibit maupun dewasa. Oleh sebab itu, upaya perakitan varietas tanaman jambu mete yang tahan terhadap serangan penyakit tersebut perlu dilakukan. Tujuan penelitian adalah menguji ketahanan nomor-nomor koleksi plasma nutfah jambu mete terhadap serangan penyakit busuk akar Fusarium. Seleksi dilakukan terhadap bibit hasil persarian terbuka dari 13 nomor aksesi jambu mete koleksi plasma nutfah di Kebun Percobaan (KP) Cikampek. Penelitian dilaksanakan pada fase bibit di dalam rumah plastik dengan naungan paranet intensitas 50% di KP Pakuwon. Perlakuan disusun dalam Rancangan Acak Kelompok dengan tiga ulangan. Inokulasi buatan menggunakan isolat Fusarium sp. dari tanah yang dicairkan sampai kepadatan konidia 108 konidia/ml. Hasil pengamatan menujukkan bahwa seluruh nomor aksesi jambu mete yang diuji tidak tahan terhadap serangan penyakit busuk akar Fusarium. Persentase kejadian penyakit paling tinggi ditunjukkan oleh nomor aksesi Lembor 2, M Z Lux, dan Ekoae Kecil, yaitu mencapai 93,33%, sedangkan aksesi JN 26 menunjukkan persentase kejadian sebesar 63,33%. Tingkat keparahan penyakit paling tinggi ditunjukkan oleh nomor aksesi Menini 15, yaitu mencapai 83,56%, meskipun secara statistik tidak berbeda nyata dengan Kodi 2 dan Kobawani yang masing-masing 82,92% dan 82,48%.  Resistance of 13 Cashew Germplasm Accessions to Fusarium Root Rot Disease ABSTRACT Root rot caused by Fusarium is an important cashew disease which attacks any stage of cashew growing from seedlings to adult plant. Therefore, findings of new cashew variety being resistant to the disease should be done in breeding program. The aim of this work was to assess resistance of cashew accession numbers to the disease. Cashew seedlings derived from open pollinated of 13 cashew accessions were observed at germplasm collection of the crop planted at Cikampek Research Station. This work was held in nursery with 50% light intensity of paranet at Pakuwon Research Station. Treatments were arranged in randomized complete block design with three replications. Artificial innoculation used Fusarium isolated from soil was diluted in sterilized water with density of 108 conidia/ml was innoculated to the seedlings. Result showed that allf cashew accessions tested were sucecptable to the disease attack. Lembor 2, M Z Lux, and small Ekoae accessions revealed high in disease incidence which reached 93.33%. Whereas, JN 26 showed the lowest disease incidence, i.e. only 63.33%. The most severe disease symptom was show by Menini 15 (83.56%), although it was not significantly different from Kodi 2 and Kobawani reaching of 82.92% and 82.48%, respectively.
EVALUASI KETAHANAN SEPULUH AKSESI JAMBU METE TERHADAP PENYAKIT BUSUK AKAR FUSARIUM Supriadi, Handi; Taufik, Efi; Harni, Rita
Jurnal Tanaman Industri dan Penyegar Vol 2, No 2 (2011): Buletin Riset Tanaman Rempah Dan Aneka Tanaman Industri
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

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Evaluation of resistancies of ten accessions of cashew to fusarium root rot disease. Cashew is a commodity that has an important role in improving the welfare of farmers, especially in areas with dry climates and poor nutrients. One obstacle in the development of cashew nut is the presence of Fusarium  attacks that can shut down the plant in the nursery. Research evaluation of resistancies of ten accessions of cashew against Fusarium root rot disease, which aimed to get the accessions that resistant to Fusarium root rotdisease has been conducted in the Laboratory and Greenhouse of Indonesian Spices and Industrial Crops Rresearch Institute (ISICRI) January to December 2009. Research using completely randomized design with 10 treatments and three replications. Treatments were the type of accsession namely Arsyad Labone, Sri Lanka,JT-21, Laode Head, Laode Gani, Sleman Red, Nigeria, Laode Kase, JN 26, NDR-31. The result obtained one cashew accessions highly resistant namely JN-26, and two accessions that resistant that is Laode Gani, and Sleman Red with root rot disease incidence of each 0; 6.67, and 9.52% at the age of two months after inoculation.
EVALUASI PRODUKSI DAN FISIKO-KIMIA MINYAK CENGKEH ZANZIBAR GORONTALO Supriadi, Handi; Syafaruddin, Syafaruddin; Bermawie, Nurliani; Hadad EA, Mochamad
Jurnal Tanaman Industri dan Penyegar Vol 3, No 3 (2012): Buletin Riset Tanaman Rempah Dan Aneka Tanaman Industri
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

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Abstract

Cengkeh Zanzibar Gorontalo telah lama dijadikan sebagai sumber benih oleh petani cengkeh di Provinsi Gorontalo karena cengkeh tersebut memiliki keunggulan yaitu berproduksi tinggi dan aroma bunganya disukai oleh banyak pabrik rokok  kretek. Penelitian ini bertujuan mengevaluasi produksi, fisiko-kimia minyak dan karakteristik morfologi 17 pohon induk cengkeh Zanzibar Gorontalo yang sudah digunakan sebagai sumber benih oleh petani. Kegiatan dilaksanakan di Desa Taludaa, Kabupaten Bone Bolango, Gorontalo, mulai Januari sampai September 2012, dengan metode survei. Hasil penelitian menunjukkan bahwa cengkeh Zanzibar Gorontalo memiliki produksi bunga basah lebih tinggi dibandingkan cengkeh Afo dan komposit Zanzibar Karo. Pohon induk tersebut memiliki mutu bunga cengkeh yang baik dengan kadar minyak atsiri 19,94-23,00% dan kadar eugenol total 87,43-93,00%. Ukuran bunga lebih besar dengan aroma bunga khas, serta seragam dalam penampilan karakter vegetatif dan generatif tanaman.EVALUATION OF GORONTALO ZANZIBAR CLOVE PRODUCTION AND ITS PHYSICO-CHEMICAL ESSENTIAL OILABSTRACT The Clove of Zanzibar Gorontalo has been used as a source of seeds by farmers in Gorontalo province due to high production and its scents preferred by many cigarette industries. A research was carried out to evaluate production and physico-chemical properties of essential oil of Zanzibar clove trees grown. The study (in form of surveys) was focused on the morphological characters (vegetative and generative) of 17 mother trees of Zanzibar clove from January to September 2012 at Taludaa village, Bone Bolango district, Gorontalo. The results showed that the fresh yield of Gorontalo Zanzibar clove was 133,46 kg/tree/year being much higher than those of Afo and Zanzibar Karo composite varieties, 103.0 and 47.0 kg/tree/year respectively. In addition to high in yields, the clove mother trees have good quality in essential oil (19,94-23,00%) and total of eugenol content (87,43-93,00%), larger in flower sizes, distinctive in floral aroma, and homogeny in performance of vegetative and generative characters.
DAMPAK PERUBAHAN IKLIM TERHADAP PRODUKSI JAMBU METE DAN UPAYA PENANGGULANGANNYA Supriadi, Handi; Heryana, Nana
Jurnal Tanaman Industri dan Penyegar Vol 2, No 2 (2011): Buletin Riset Tanaman Rempah Dan Aneka Tanaman Industri
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

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Impact of climate change on cashew production and efforts of countermeasures. Climate change occurs due to the increasing content of greenhouse gases (GHGs)  in the air, mostly resulting from the rapidly growing industrialization. As a result of climate change causes: (1) the earths temperature increased, (2) extreme climate events (climatic anomalies) increased, as events Enso (El-Nino that caused drought and La-Nina causes floods), (3) a decrease and an increase air temperature extremes, (4) changes in rainfall patterns and (5) rise in sea levels and rob. The climate change was significant effect on the reducing of cashew nut production. The rain that fell throughout the year in 2010 resulted in cashew production fell drastically, as in Wonogiri, Central Java (48.75 to 50.85%) and Muna, Southeast Sulawesi (93.63%). The impacts of climate change can be reduction  through the anticipation, adaption and mitigation. Anticipation performed by conducting assessment of agricultural resources, improvement of agricultural structure and infrastructure, imfrovement of  farming system and agribusiness, and management of socio-economi and cultural.  Technologi adaptation was done through the development of varieties tolerant to climate change and  the use of water saving technologies.  While migitation technology that can be applied are: planting cashew, cashew waste utilization, land management and use of organic fertilizers.
Kesesuaian Batang Bawah dan Batang Atas pada Grafting Jambu Mete Supriadi, Handi; Heryana, Nana
Jurnal Tanaman Industri dan Penyegar Vol 3, No 2 (2012): Buletin Riset Tanaman Rempah Dan Aneka Tanaman Industri
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

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Produktivitas jambu mete Indonesia sampai saat ini masih tergolong rendah, penyebabnya antara lain: penggunaan bahan tanaman asalan, perbanyakan bahan tanaman yang masih menggunakan biji, dan belum diterapkannya teknologi budidaya anjuran. Usaha untuk meningkatkan produktivitas jambu mete salah satunya dapat dilakukan melalui perbaikan teknik kultivasi yaitu penggunaan bahan tanaman yang dikembangkan secara grafting dengan menggunakan batang atas dari varietas unggul dan batang bawah lokal terpilih. Tujuan penelitian adalah mengevaluasi tampilan pertumbuhan empat kombinasi grafting jambu mete dengan batang atas asal varietas unggul  dan batang bawah lokal terpilih di lapangan. Penelitian di lakukan di kebun percobaan (KP) Cikampek dari Januari 2009 sampai Desember 2011 dalam dua tahap. Tahap pertama (tahun 2009-2010) dilakukan di tingkat pembibitan menggunakan Rancangan Acak Kelompok dan tiga ulangan. Perlakukan yang diuji yaitu: S1 (Tanjung Bunga + Meteor JK), S2 (Tanjung Bunga + B O2),  S3 (Tanjung Bunga + SM 9),  S4 (Tiwatobi + Meteor JK), S5 (Tiwatobi + B O2), S6 (Tiwatobi + SM 9), S7 (Ende + Meteor JK), S8 (Ende + B O2) dan S9 (Ende + SM 9).  Penelitian tahap kedua (tahun 2010 – 2011) dilakukan di lapangan menggunakan Rancangan Acak Kelompok dan enam ulangan. Perlakuan yang di uji adalah  empat kombinasi grafting jambu mete yaitu: G1 (Tanjung Bunga + Meteor JK), G2 (Tanjung Bunga + B 02), G3 (Tiwatobi + Meteor JK), dan G4 (Ende + B 02).  Hasil penelitian menunjukkan bahwa pada pembibitan kombinasi grafting S1 mempunyai persentase keberhasilan yang nyata lebih tinggi dibandingkan kombinasi S2, S3, S4, S5, S6, S7 dan S9, kecuali dengan kombinasi S8  tidak berbeda nyata. Pada tingkat lapang kombinasi grafting G1 sampai umur enam bulan di lapang menunjukkan pertumbuhan terbaik yang nyata lebih baik  dibandingkan kombinasi grafting  G2, G3, dan G4.  Koefisien korelasi antara komponen pertumbuhan (tinggi tanaman, diameter batang, lebar tajuk, jumlah cabang dan jumlah daun) pada grafting jambu mete mempunyai nilai nyata positif. Suitability of Rootstocks and Scions in Cashew Grafting ABSTRACT Indonesian cashew productivity is still relatively low mainly due to the use of imferior planting materials developed from seeds, and improper cultural practices applied by farmers. An effort to increase the productivity of cashew is the use of grafted seedlings developed from combination of scions of high yielding varieties and locally selected cashew accessions as rootstock. The objective of this study was to evaluate growth performance of grafted cashew developed from combination of scions of two high yielding varieties and three locally elected accessions. The study was conducted at Cikampek Research Station from January 2009 to December 2011, in two sequent phases. The first phase  (years 2009 to 2010) was conducted at the nursery level by using a randomized block design with three replications. Treatments tested were: S1 (Tanjung Bunga + Meteor JK), S2 (Tanjung Bunga + B O2), S3 (Tanjung Bunga + SM 9),  S4 (Tiwatobi + Meteor JK), S5 (Tiwatobi + B O2),  S6 (Tiwatobi + SM 9),  S7 (Ende + Meteor JK),  S8 (Ende + B O2) and S9 (Ende + SM 9). The second phase was carried out in years 2010 to 2011 at the field level.  A randomized block design with six replications was used.  The treatments tested were four combination of grafted cashew, namely: G1 (Tanjung Bunga + Meteor JK), G2 (Tanjung Bunga + B 02), G3 (Tiwatobi + Meteor JK), dan  G4 (Ende + B 02). Results showed  at the nursery level, the combination of  S1 had the highest rate of success being significantly higher than those of S2, S3, S4, S5, S6, S7 and S9, but  not for S8. At the field level, the combination G1 accessions yielded the best one. It was much better than those of G2, G3, and G4. Correlation coefficient between the components of growth (plant height, stem diameter, crown width, number of branches and number of leaves) on the grafting of cashew  has a positive value significantly.
Perubahan Cadangan Karbon pada Peremajaan Karet Rakyat Supriadi, Handi; Ferry, Yulius
Jurnal Tanaman Industri dan Penyegar Vol 1, No 3 (2014): Jurnal Tanaman Industri dan Penyegar
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

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Peremajaan tanaman karet (Hevea brasiliensis) memberikan konsekuensi menurunnya cadangan karbon sehingga diperlukan teknik untuk meminimalisasi kehilangan tersebut. Penelitian bertujuan menganalisis perubahan cadangan karbon pada penebangan tanaman karet tua sebanyak 30%, 50%, 70%, dan 100% yang diikuti oleh penanaman karet muda dengan tanaman sela (jagung dan kacang tanah). Penelitian dilaksanakan bulan Januari sampai Desember 2013 pada pertanaman karet rakyat umur 25 tahun di Kecamatan Way Tuba, Kabupaten Way Kanan, Lampung. Rancangan yang digunakan adalah acak kelompok dengan tiga ulangan. Perlakuan yang diuji adalah penebangan tanaman karet tua 30%, 50%, 70%, dan 100% yang masing-masing diikuti dengan penanaman karet muda dan tanaman sela (jagung dan kacang tanah). Variabel yang diamati: (1) bobot segar dan kering (biomassa); (2) kandungan karbon terikat (fixed carbon); dan (3) cadangan karbon pada pertanaman karet, jagung, kacang tanah, dan tanaman karet muda. Hasil penelitian menunjukkan penebangan karet sebanyak 30%–100% dari populasi menurunkan cadangan karbon sebesar 7,4–24,29 ton C/ha. Penanaman karet muda dan tanaman sela (jagung dan kacang tanah) dapat berkontribusi terhadap penambahan karbon sebesar 0,98-3,28 ton C/ha sehingga kehilangan karbon akibat penebangan tanaman karet tua berkurang menjadi 6,29–22,92 ton C/ha.Kata kunci: Hevea brasiliensis, peremajaan, cadangan karbon, tanaman selaRejuvenation of rubber tree (Hevea brasiliensis) can lead to a reduction of carbon stocks. Therefore, appropriate methods are needed to minimize such losses. The objective of this study was to analyze the changes on carbon stocks in the rejuvenation of rubber with logging system of 30%, 50%, 70%, and 100% and intercrops between the young rubber plantation (maize and peanuts). The research was conducted from January to December 2013 at smallholder rubber plantation in Way Tuba District, Way Kanan Regency, Lampung when the trees were 25 years old. The design used was a randomized block design with three replications. The tested treatments were logging of old rubber plants at 30%, 50%, 70%, and 100%, which then followed by planting of young rubber plants and intercropped (maize and peanut). The variables measured were: (1) fresh weight and dry weight (biomass); (2) fixed carbon content; and (3) carbon stocks on rubber plantation, maize, peanuts, and young rubber plants. The results showed that rubber logging at about 30%–100% could reduce carbon stocks by 7.4–24.29 ton C/ha. However, planting of young rubber plants as well as intercropped (maize and peanut) may contributed to the carbon enrichment up to 0.98-3.28 ton C/ha. Hence, the loss of carbon due to logging system turn out to be 6.29–22.92 ton C/ha.
Evaluasi Hasil Grafting Sembilan Klon Kopi Robusta dengan Batang Bawah Lokal Pranowo, Dibyo; Supriadi, Handi
Jurnal Tanaman Industri dan Penyegar Vol 4, No 3 (2013): Buletin Riset Tanaman Rempah dan Aneka Tanaman Industri
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

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Produktivitas kopi Robusta di Indonesia masih tergolong rendah, yaitu 685 kg/ha/tahun, penyebabnya karena benih yang digunakan petani bukan dari klon unggul dan perbanyakannya dilakukan melalui biji. Upaya untuk mengatasi masalah tersebut adalah dengan penggunaan benih unggul yang berproduksi tinggi (di atas 1.000 kg/ha) dan perbanyakannya dilakukan secara grafting. Penelitian ini bertujuan mengevaluasi tingkat pertumbuhan dan keberhasilan grafting dari sembilan klon unggul kopi Robusta sebagai batang atas dengan lokal Sukabumi sebagai batang bawah. Penelitian dilaksanakan di Rumah Kaca Kebun Percobaan Pakuwon, Balai Penelitian Tanaman Industri dan Penyegar, Sukabumi mulai bulan Maret sampai Juli 2013. Rancangan yang digunakan adalah rancangan acak lengkap dengan tiga ulangan. Perlakukan yang diuji adalah sembilan kombinasi grafting kopi Robusta sebagai berikut: (1) BP 42 + lokal, (2) BP 935 + lokal, (3) BP 308 + lokal , (4) BP 436 + lokal, (5) BP 913 + lokal, (6) BP 534 + lokal, (7) BP 239 + lokal, (8) BP 430 + lokal, dan (9) BP 358 + lokal. Hasil penelitian menunjukkan bahwa pada umur 5 bulan setelah grafting (BSG) pertumbuhan tinggi tanaman, jumlah daun, luas daun, dan jumlah cabang serta tingkat keberhasilan pada kombinasi grafting kopi Robusta BP 430 + lokal lebih baik dibandingkan kombinasi grafting lainnya.Kata Kunci: Kopi Robusta, grafting, batang atas, batang bawah, pertumbuhan, tingkat keberhasilanProductivity of Robusta coffee in Indonesia were classified as low of about 685 kg/ha/year, due to did not use the superior clones and their propagation technique conducted by seeds. Efforts to address these issues are the using of high yielding superior seed (above 1,000 kg/ha) and then were propagated by grafting. The objective of this research was to evaluate the success rate and growth of grafted plants arised from nine clones of Robusta coffee with Sukabumi local rootstock. The study was conducted in a Greenhouse of Pakuwon Research Station, Indonesian Industrial and Beverage Crops Research Institute, Sukabumi. A randomized block design with 9 treatment of grafting combination and 3 replication were used in this study. The nine of treatment as follows: (1) BP 42 + local, (2) BP 969 + local, (3) BP 306 + local, (4) BP 436 + local, (5) BP 913 + local, (6) BP 534 + local, (7) BP 239 + local (8) BP 430 + local, and (G9) BP 358 + local. The results showed that the plant height, leaf number, leaf area, number of branches, and grafting success rate of BP 430 + local at 5 months after grafting (MAG) more higher than other grafting combination.
BUDIDAYA TANAMAN KOPI UNTUK ADAPTASI DAN MITIGASI PERUBAHAN IKLIM SUPRIADI, HANDI
Perspektif Vol 13, No 1 (2014): Juni 2014
Publisher : Puslitbang Perkebunan

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Abstract

ABSTRAKPerubahan  iklim  yang  ditandai  dengan  berubahnya musim dan pola hujan, meningkatnya intensitas anomali iklim  El­Nino  dan  La­Nina  serta  meningkatnya  suhu udara  mengakibatkan  kerusakan  pada  tanaman  kopi, sehingga  produksi  menurun.    Akibat  EL­Nino  terjadi bulan kering (curah hujan di bawah 60 mm per bulan) yang  berkepanjangan  mengakibatkan  produksi  kopi menurun sebesar 34  79%, begitu juga bulan basah (curah hujan di atas 100 mm per bulan) yang merata sepanjang tahun  akibat  La­Nina  mengakibatkan  produksi  kopi menurun 98,5%.  Bulan kering yang berkepanjangan (di atas 3 bulan) akibat dari kejadian El­Nino menyebabkan kualitas biji kopi menurun. Setiap kenaikan suhu 1C, maka  akan  menurunkan  produksi  biji  kopi  sebesar 30,04%.  Namun  suhu  udara  yang  sangat  rendah  (­3 0 sampai ­5         C) dapat mematikan daun kopi. Upaya untuk mengatasi  perubahan  iklim  pada  tanaman  kopi  dapat dilakukan melalui penerapan teknologi budidaya yang bersifat adaptif dan mitigatif terhadap perubahan iklim yaitu penerapan tanpa olah tanah, penggunaan mulsa, pembuatan  rorak,  penanaman  dan  peramajaan  kopi dengan  bahan  tanam  unggul,  penanaman  penaung, pemangkasan,  penanaman  tanaman  penutup  tanah, penggunaan  pupuk  organik,  pembuatan  embung, irigasi dan sistem drainase.Kata kunci:  Tanaman  kopi,  perubahan  iklim,  dampak, mengatasi, budidaya Cultivation of Coffee plant for Adaptation and Mitigation of Climate ChangeABSTRACTClimate change marked by the shift in rainfall patterns and  season  as  well  as,  increasing  intensity  of  climate  anomaly  El­Nino  and  La­Nina  and  the  rising temperatures are causing damage to the coffee plant so that production is declining. As a result of the EL­Nino occurs  Months  dry  (rainfall  below  60  mm  per  month) prolonged resulted in coffee production declined by 34­ 79%, as well as in wet (rainfall above 100 mm per month) are evenly distributed throughout the year due to the La­ Nina in production of coffee dropped 98,5%. Besides the dry months of prolonged (over 3 months) as a result of the  El­Nino  events  lead  to  decreased  quality  of  coffee beans.  Every  1 0 c  temperature  rise  then  it  will  lose production of coffee beans by 30,04%. However at very low temperatures (­3 to­5 0 c) can turn off coffee leaves. Efforts to address climate change on coffee plants can be done through the application of cultivation technology both  are  adaptation  as  well  as  mitigation  to  climate  change, namely the application of no­tillage, mulching, making  rorak,  planting  and  rejuvenating  coffee  with superior planting material, shade tree planting, pruning, feeding  ground  cover  plants,  fertilizing  the  organic fertilizers,  the  making  of  dam,  irrigation  and  drinase system.Keyword :  Coffea sp., climate change, impact, overcome, cultivation
Produksi Tanaman Kopi Arabika pada Beberapa Jenis Pohon Penaung Rokhmah, Dewi Nur; Supriadi, Handi
Seminar Nasional Lahan Suboptimal Vol 10, No 1 (2022): Prosiding Seminar Nasional Lahan Suboptimal ke-10 “Revitalisasi Sumber Pangan N
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Abstract

Rokhmah DN, Supriadi H.  2022. Arabica Coffee Yield Under Several Types of Shade Trees. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-10 Tahun 2022, Palembang  27 Oktober 2022. pp. 97-104. Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).Arabica coffee plantation in Perhutani land is generally under several types of shade trees, so the potential for soil fertility under each type of shade tree will be different. Differences in soil fertility in coffee plantations under several types of shade trees will cause variations in coffee yield. This study aimed to analyze the yield of Arabica coffee plants on several types of shade trees. The research was conducted in Pangalengan, Bandung Regency, West Java Province, from January to December 2020 using the survey method. The plant sample population was Arabica coffee grown under four types of shade trees, namely: pine (Pinus merkusii), red cedar (Toona sureni), tembusu (Fagraea fragrans), and rainbow eucalyptus (Eucalyptus deglupta). Determination of the research location was carried out purposively according to the type of plant that had been determined as a shade plant. Meanwhile, the determination of coffee plants as an example of observation was carried out by simple random sampling. The results showed that the litter of leda, suren, and tembusu trees has the potential to contribute quite a lot of organic matter seen from the production of litter per month which is quite high with high nutrient content and can decompose faster. While the pine shade has less litter and a longer decomposition process. The highest yield of Arabica coffee cherry was in the shade of Leda (4.82 kg/tree), then tembusu (3.86 kg/tree), pine (2.27 kg/tree), and suren (2.18 kg/tree).
Co-Authors A.A. Ketut Agung Cahyawan W Asif Aunillah Dani Dani Dibyo Pranowo Edi Wardiana Efi Taufik Efi Taufiq Enny Randriani Ilham Nur Ardhi Wicaksono Juniaty Towaha M. HADAD E.A, M. Mochamad Hadad EA Nana Heryana Nurliani Bermawie RITA HARNI Rokhmah, Dewi Nur Syafaruddin Syafaruddin Yulius Ferry