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Possibility to Reduce Drudgery and Time in Harvesting Individual Ripe Fruits of Jatropha curcas Linn by Whole Bunch Harvesting Jupikely James Silip; Armansyah H. Tambunan; Erliza Hambali; , Sutrisno; Memen Surahman
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 38 No. 2 (2010): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (190.486 KB) | DOI: 10.24831/jai.v38i2.1800

Abstract

<!-- /* Font Definitions */ @font-face {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4; mso-font-charset:0; mso-generic-font-family:swiss; mso-font-pitch:variable; mso-font-signature:-1610611985 1073750139 0 0 159 0;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin-top:0cm; margin-right:0cm; margin-bottom:10.0pt; margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:Calibri; mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:"Times New Roman"; mso-ansi-language:IN; mso-no-proof:yes;} @page Section1 {size:612.0pt 792.0pt; margin:72.0pt 90.0pt 72.0pt 90.0pt; mso-header-margin:36.0pt; mso-footer-margin:36.0pt; mso-paper-source:0;} div.Section1 {page:Section1;} --> A study was conducted to determine Jatropha fruits ripening uniformity on its tree and bunches characteristics. To get more information about its ripening off, the tree characteristics a respiration pattern was determined. The data were collected on fi ve trees for each ten selected accessions (n=50) for fruit ripening uniformity on its trees study and fi fteen bunches for each seven selected accessions (n=105) for fruits bunches ripening uniformity study at two jatropha pilot projects at Sabah state of Malaysia at the end of March 2009 when the trees were exactly one year old. This study confi rmed that heterogeneous ripening occured in all jatropha accessions and within individual jatropha bunches. Respiration tests confi rmed that jatropha is a climacteric fruit. The results showed an upsurge in CO2 production at the end of ripening and at the beginning of senescence. This study has revealed indications of the possibility to harvest jatropha fruit in bunches rather than harvesting individual ripe fruit, which could potentially improve harvest effi ciency by reducing harvesting time and drudgery. Keywords: ripening, respiration rate, post-harvest, climacteric
Application of Adaptive Neuro-Fuzzy Inference System Model for Predicting CO2 Emission Based on Production Rate in Sugarcane Agroindustry Mursidah, Sri; Djatna, Taufik
Jurnal Ilmu Alam dan Lingkungan Vol. 17 No. 1 (2026): Jurnal Ilmu Alam dan Lingkungan
Publisher : Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70561/jal.v17i1.50604

Abstract

Carbon dioxide (CO₂) emissions from industrial processes, particularly in sugar production, have become an important environmental concern that requires accurate prediction and monitoring. This study aims to predict carbon dioxide (CO₂) emissions using the Adaptive Neuro-Fuzzy Inference System (ANFIS) model based on production rate and the fuel used for operating the boiler machine. The model was developed using hypothetical data obtained from the literature, which were divided into 80% training data and 20% testing data. A trial-and-error approach was employed to determine the optimal parameters of the ANFIS model. Various membership function (MF) types and numbers were evaluated, and the optimal configuration was found to be three MFs with a triangular MF type. Model performance was assessed using Root Mean Square Error (RMSE), Mean Absolute Percentage Error (MAPE), and the coefficient of determination (R²). The results show that the ANFIS model provides good predictive performance, with an RMSE value of 17.083, a MAPE of 14.338, and an R² of 0.8686. These findings indicate that the proposed ANFIS model has a high capability in estimating CO₂ emissions based on production rates and fuel usage.
Co-Authors , Sutrisno . Ismiyati . Machfud . Sucipto A M Fauzi Ade Febransyah Agus Buono Amun Amri Anas Miftah Fauzi Andrianingsih Ani Suryani Ani Suryani Ani Suryani Ani Suryani Ani Suryani Ani Suryani Annisa Annisa Annisa Arif Rakhman Hakim Armansyah H. Tambunan Arum Nur Fitrah Arum Nur Fitrah, Arum Nur Asrol, Muhammad Astried Silvanie Ati Atul Quddus Aulia, Zesma Bagas Ari Wicaksono Baidowi, Taufiq Bambang Hero Saharjo Borneo Satria Pratama Budi Arif Dermawan Dadan Kusdiana Dadang Rukmana Darmono Taniwiryono Darmono Taniwiryono Delfitriani Devy Setyana Ditdit N Utama Djumali Mangunwidjaya Dwi Febriantini Dwi Febriantini, Dwi Dwi Setyaningsih Dwi Setyaningsing Edi Zulchaidir Eka Kurnia, Eka Elisa Anggraeni Erliza Noor Erni Krisnaningsih Fadhil, Rahmat Fadilla Eka Aulyana FARAH FAHMA Fatria Resti Haryani Firda Dimawarnita Firda Dimawarnita Firda DIMAWARNITA Firman Ardiansyah Firman Arief Soejana Firzatullah, Raden Muhamad Fitriani Kasim Galih Kurniawan Sidik Galih Kurniawan Sidik Ghiffari, Muhammad Amirul Ghiffari, Muhammad Amirul Gustan Pari Gustan Pari Gustan Pari Habyba, Anik Nur Heru Sukoco Ika Agustin Rusdiana Ika Agustin Rusdiana Ika Amalia Kartika Illah Sailah Imas Sukaesih Sitanggang Ina Siti Hasanah Indah Yuliasih Irawan, Andre Irman Hermadi Irzaman, Irzaman Is Sulistyati Jupikely James Silip Kadarwan Soewardi Kartika Okta Purnama Kartika Okta Purnama Khaswar Syamsu Kunaifi Kunaifi M Luqmanul Hakim M. Iwan Fermi M. Syamsul Maarif Machfud Machfud Marimin , Marimin Marimin Maulidayanti, Esti Mega Ma’ruf Pambudi Nurwantara Memen Surahman Mira Rival Moh. Yani Muh. Yusram Massijaya Muhammad Arif Kamal Mukarramah Lubis Mulyorini Rahayuningsih Mursidah, Sri Muslich . Muslich Muslich, Muslich Naoto Matsue Nasution, Rahmat Wahyudi Nasution, Rahmat Wahyudi Neny Rosmawarni Ni Nyoman Indah Adi Puspita Nurmiati Nurmiati Nurmiati Nurmiati Obie Farobie Paduloh Paduloh Pebriani, Siska Petir Papilo Petir Papilo Pradana, I Gusti Made Teddy Pramestari, Diah Prasetyo Nugroho, Eddy Purnama, Kartika Okta Purwo Subekti Rahmadanis Rahmadanis Rahmadini Payla Juarsa Rina Novia Yanti Rizfi Fariz Pari Riztiara Nurfitri Robbani, Muhammad Haqqiyuddin Rosa, Mutya Ruhul Amin Rusdiana, Ika Agustin Safriyana, Safriyana Sapta Raharja Serarifi Elagin Harahap Setyaningsing, Dwi Shafira Nurfadhila Sidik, Galih Kurniawan Simatupang, Yeni Veronika Siska Desri Wirahmi, Busman, Edrizal, Siska Pebriani Sitanggang, Sukaesih Siti Mujdalipah Siti Wardah, Siti Slamet Budijanto Sri Martini Sukardi Sukardi Sukardi Sukardi Syarifuddin Nasution, Syarifuddin Taniwiryono, Darmono Taufik Djatna Teniwut, Wellem Anselmus Tri Panji Tun Tedja I Tun Tedja Irawadi Ummu Farah Fadillah Utomo, Prayudi Utomo, Prayudi Utomo Wiharja Wiharja Wisudawaty, Priska Yandra Arkeman Yani Nurhadryani Yora Faramitha Yora FARAMITHA Yuliani, Manis Z Zulfansyah