Doctoral Dissertations (Agricultural Science)
Doctoral Dissertations (Agricultural Science)
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Produksi dan Kandungan Minyak Atsiri Beberapa Ekotipe Akar Wangi (Vetiveria zizanioides L.) pada Beberapa Tingkat Salinitas dan Kultur Teknis dengan Asam Salisilat dan Mikoriza
(Universitas Sumatera Utara, 2024)sub-tropical areas. The quality of essential oils in Indonesia is increasingly declining. The decline in export volume and low price of vetiver oil is caused by low production and quality of vetiver oil. Planting vetiver ... -
Perbaikan Karakter Morfologi Dan Agronomi Padi (Oryza sativa L) Gogo Lokal Kultivar Sidikalang dengan Induksi Iradiasi Sinar Gamma dalam Upaya Memperoleh Tanaman Padi Toleran Herbisida
(Universitas Sumatera Utara, 2023)The existence of upland rice in North Sumatra is still far from being empowered while the availability of non-irrigated land is still sufficient and climate change conditions tend to be dominant in the dry season so that ... -
Fitoremediasi Logam Kadmium: Anatomi, Metabolisme dan Produksi Minyak Atsiri Tanaman Aromatik pada Tanah Asal Tempat Pembuangan Akhir
(Universitas Sumatera Utara, 2023)Final shelters as garbage collectors in big cities have now become a disturbing and even dangerous situation for the health of the surrounding communities. This situation is due to the heavy metal content contained in ... -
Kajian Pemberian Mulsa Jerami dan Beberapa Sumber Silika terhadap Peningkatan Produktivitas dan Penurunan Kadar Amilosa Padi Gogo Varietas Sigambiri Merah
(Universitas Sumatera Utara, 2023)Rice plants are one of the sub-sectors of food crops that are widely cultivated by the people of Indonesia. Rice has a very important role, because it is the main source for society in life. The rice harvest area in 2022 ... -
Karakterisasi Lipase Thermomyces lanuginose Imobil (TLIM) pada Reaksi Gliserolisis Enzimatis dan Optimasi Prosesnya untuk Produksi Monogliserida Berbasis Turunan Minyak Sawit
(Universitas Sumatera Utara, 2023)The need for 70% food emulsifier was mono glycerin form. There was concern about monoglyceride products that were produce as unfriendly manner and most of the products are still import, even though Indonesia has the potential ... -
Efek Suara terhadap Aktivitas Mikroba Pelarut Fosfat serta Pertumbuhan dan Hasil Tanaman Jagung (Zea maysL.)
(Universitas Sumatera Utara, 2023)Phosphorus (P) is a key nutrient for agricultural biology and productivity because it plays an important role in almost all major metabolic processes in plants such as photosynthesis, energy transfer, macromolecular ... -
Keragaman Aksesi Durian (Durio zibethinus Murr.) Lokal Sumatera Utara dengan Penanda Morfologi, Uji Organoleptik dan Pendekatan Bioinformatika pada Durian
(Universitas Sumatera Utara, 2022)Durian (Durio zibethinus Murr.) is one of the tropical plants native to Southeast Asia and is popular as the king of fruits. Durian is widely cultivated in gardens along with other plants. In Thailand and Malaysia, ... -
Integrasi Budidaya Kedelai pada Perkebunan Kelapa Sawit Menghasilkan dengan Rekayasa Jarak Tanam Ditinjau dari Aspek Produksi dan Ekonomi serta Lingkungan
(Universitas Sumatera Utara, 2023)The use of intercropped land in immature oil palm plantations has been widely studied and has even been widely applied. Meanwhile, land use between mature oil palm plantations with spacing engineering has never been ... -
Analisis Karakteristik Tanah pada Areal Kelapa Sawit Terinfeksi Penyakit Ganoderma melalui Pendekatan Remote Sensing
(Universitas Sumatera Utara, 2023)Basalt Stem Rot (BSR) caused by the pathogen Ganoderma boninense is a threat to the sustainability of oil palm agribusiness, especially in Indonesia and Malaysia. This disease results in damage to plants, decreased ... -
Pengaruh Faktor Internal dan Eksternal terhadap Keberhasilan Wirausaha dan Strategi Pengembangan Wirausahawan Muda Pertanian di Wilayah Sumatera
(Universitas Sumatera Utara, 2023)The aim of the research is to describe the condition of internal factors, external factors, and entrepreneurial success and to analyze the influence of internal factors and external factors on entrepreneurial success. ... -
Studi NCBI dan Marka Biokimia Klon Quick Starter dan Slow Starter Tanaman Karet (Hevea Brassiliensis Muell Arg.)
(Universitas Sumatera Utara, 2022)Research on the rubber plant H. brasiliensis Muell Arg. has been carried out by various agencies and previous researchers, and the results of these researches have been published in various journals and are well documented ... -
Perbaikan Kesuburan Tanah Sawah Tadah Hujan dalam Pengembangan Kedelai Hitam melalui Aplikasi Pupuk Organik dan Anorganik Majemuk
(Universitas Sumatera Utara, 2015)Increased land area can be done by utilizing vacant land or land that is not currently in production periods for example rainfed areas. Utilization of rainfed areas after the time of production of the rice such as black ... -
Ameliorasi Tanah Gambut dengan Air Laut Mineral Zeolit dan Pasir Vulkan serta Pengaruhnya pada Tanaman Padi Sawah
(Universitas Sumatera Utara, 2016)The study aimed to determine the effect of amelioration of seawater, zeolite, volcanic sand and combination of all ameliorants in peat soil from Inbuhan Batu and Asalnn Distric ltove been condrcted in the greenhouse and ... -
Karakteristik, Klasifikasi, dan Arahan Pengelolaan Tanah Terpengaruh Tsunami di Nanggroe Aceh Darussalam (Studi Kasus di Aceh Utara)
(Universitas Sumatera Utara, 2009)On 26 Desember 2004 a strong earthquake in Aceh caused the tsunami wave. The wave had a kinetic energy resulting from the water movements, the characteristics of water as agent of leaching and dissolving, and mud ... -
Efisiensi Pemupukan Fosfat dan Produksi Tanaman Kentang (Solanum tuberosum L.) pada Andisol Terdampak Erupsi Gunung Sinabung Melalui Pemanfaatan Mikroba Pelarut Fosfat
(Universitas Sumatera Utara, 2016)Phosphorus (P) is an essential macro nutrient that plays an important role in supplying ttte chemical energy needed in aimost all metabolic activities of plants. Its role in biological systqms cannot be replaced by other ... -
Upaya Mempercepat Matang Sadap dan Karakter Produksi Lateks Beberapa Klon Karet Melalui Penggunaan Zat Pengatur Tumbuh
(Universitas Sumatera Utara, 2016)On rubber cultivation, good and uniform growth of plant immature periods (TBM) is the main goal because the productivity at productive age (PA) is not only determined by genetic potential (clones) and the system of ... -
Penyusunan Amandemen Silikat Berdasarkan Karakteristik Tanah Andisol Gunung Sinabung
(Universitas Sumatera Utara, 2014)Soil studies in Mt. Sinabung slope was conducted in 2 (two) surveys and 2 (two) experiments. The first study is survey of morphology and characteristic of soils in north slope of Mt. Sinabung, comprised upper slope, ... -
Seleksi dan Mekanisme Toleransi Tanaman Tembakau (Nicotiana tabacum L.) terhadap Kekeringan
(Universitas Sumatera Utara, 2007)The objectives of this experiment to determine level tolerance of thirty Nicotiana tabacum genotypes against drought stress under controlled conditions; to determine tolerance mechanism to drought; find out tolerant ... -
Kajian Integrasi Tanaman Padi Sawah dan Kelapa Sawit
(Universitas Sumatera Utara, 2020)The conversion of rain-fed and irrigated rice into oil palm plantations are a circumstance that occurs in Indonesia, North Sumatra, especially in the Deli Serdang and North Labuhanbatu Districts. This is difficult to be ... -
Eleusine indica Resisten-Glifosat: Skrining, Campuran dan Resistensi Ganda serta Pengelolaan
(Universitas Sumatera Utara, 2022)The problems caused by weeds in oil palm plantations can decrease plant yield, especially glyphosate-resistant Eleusine indica. E. indica has been reported to be glyphosate-resistant in oil palm plantations in North Sumatra. ...
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