Optimalisasi Pemanfaatan Sumber Daya Genetik Padi Melalui Valuasi Ekonomi

English Indonesia has potency of widely diverse genetic resources of rice useful to assembly the new varieties. This study aimed to analyze (1) diversity of genetic resources and their utilization in the assembly of rice varieties; (2) importance of preserving the diversity of rice genetic resources; (3) a conceptual overview of economic valuation of genetic resources of rice; and (4) economic value of genetic resources of rice. This paper is a literature review related to genetic resources and economic valuation of rice. The results show that the economic valuation of genetic resources of rice necessary to do in order to become a reference for breeders of rice in assembling new varieties of rice in accordance with preferences of rice farmers and consumers, so that the new varieties of rice produced to be widely adopted and provide economic impact on communities. In addition, in the conditions of limited conservation budgets, economic valuation can be used to better focus efforts to manage genetic resources that are considered to provide greater economic benefits. The management of genetic resources could be done through exploration, conservation, characterization and evaluation, documentation, as well as the exchange of material and information between research institutions from home and abroad. Indonesian Indonesia merupakan negara yang memiliki potensi sumber daya genetik padi yang sangat beragam yang dapat dimanfaatkan dalam perakitan varietas unggul baru padi. Tulisan ini bertujuan untuk melakukan kajian mengenai (1) keanekaragaman sumber daya genetik padi dan pemanfaatannya dalam perakitan varietas unggul; (2) pentingnya pelestarian keanekaragaman sumber daya genetik padi; (3) tinjauan konseptual valuasi ekonomi sumber daya genetik padi; dan (4) nilai ekonomi sumber daya genetik padi. Tulisan ini merupakan review dari berbagai literatur terkait dengan sumber daya genetik padi dan valuasi ekonomi, khususnya valuasi ekonomi sumber daya genetik padi. Hasil kajian menunjukkan bahwa valuasi ekonomi sumber daya genetik padi penting untuk dilakukan supaya dapat menjadi acuan bagi para pemulia padi dalam merakit varietas unggul baru padi yang sesuai dengan preferensi petani padi maupun konsumen beras, sehingga varietas unggul baru padi yang dihasilkan dapat diadopsi secara luas dan memberikan dampak ekonomi yang besar bagi masyarakat. Di samping itu, dalam kondisi anggaran konservasi yang terbatas, valuasi ekonomi dapat digunakan untuk lebih memfokuskan upaya pengelolaan sumber daya genetik yang dinilai memberikan manfaat ekonomi lebih besar. Pengelolaan sumber daya genetik tersebut dilakukan dengan eksplorasi, konservasi, karakterisasi dan evaluasi, dokumentasi, serta pertukaran material dan informasi antara lembaga penelitian dari dalam dan luar negeri.

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ECONOMIC BENEFITS OF CONSERVING ANIMAL GENETIC RESOURCES

Animal Genetic Resources Information ◽

10.1017/s1014233900003850 ◽

1984 ◽

Vol 3 ◽

pp. 11-16 ◽

Cited By ~ 10

Author(s):

Charles Smith

Keyword(s):

Developing Countries ◽

Genetic Resources ◽

Economic Value ◽

Economic Benefits ◽

International Action ◽

Animal Genetic Resources ◽

The Future ◽

The Face

SUMMARYThe methods of preserving animal genetic resources and the benefits and disadvantages are reviewed. The economic value of preserving germplasm in the face of uncertain needs and opportunities for use in the future is calculated. The conclusion is that the benefits greatly exceed the costs, and in many conditions in developing countries it would be desirable both to preserve and to improve indigenous breeds. International action is desirable to maximize efficiency and minimize risk.

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Economic Valuation of the Ecosystem Services of the Mesoamerican Reef, and the Allocation and Distribution of these Values

10.18235/0003289 ◽

2021 ◽

Author(s):

Itziar Ruiz de Gauna ◽

Anil Markandya ◽

Laura Onofri ◽

Francisco (Patxi) Greño ◽

Javier Warman ◽

...

Keyword(s):

Decision Making ◽

Coral Reefs ◽

Natural Resources ◽

Natural Capital ◽

Economic Valuation ◽

Economic Value ◽

Economic Benefits ◽

Pharmaceutical Products ◽

Western Hemisphere ◽

Barrier Reef

Coral reefs are one of the most diverse and valuable ecosystems on Earth. The Mesoamerican Reef contains the largest barrier reef in the Western Hemisphere. However, its health is threatened, so there is a need for a management and sustainable conservation. Key to this is knowing the economic value of the ecosystem. “Mainstreaming the value of natural capital into policy decision-making is vital” The value of environmental and natural resources reflects what society is willing to pay for a good or service or to conserve natural resources. Conventional economic approaches tended to view value only in terms of the willingness to pay for raw materials and physical products generated for human production and consumption (e.g. fish, mining materials, pharmaceutical products, etc.). As recognition of the potential negative impacts of human activity on the environment became more widespread, economists began to understand that people might also be willing to pay for other reasons beyond the own current use of the service (e.g. to protect coral reefs from degradation or to know that coral reefs will remain intact in the future). As a result of this debate, Total Economic Value (TEV) became the most widely used and commonly accepted framework for classifying economic benefits of ecosystems and for trying to integrate them into decision-making. This report estimates the economic value of the following goods and services provided by the MAR's coral reefs: Tourism & Recreation, Fisheries, Shoreline protection. To our knowledge, the inclusion of non-use values in the economic valuation of the Mesoamerican Barrier Reef System is novel, which makes the study more comprehensive.

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Valuasi Ekonomi Sumberdaya Ikan Dan Ekowisata Mangrove Di Muara Angke, Jakarta

Management of Aquatic Resources Journal (MAQUARES) ◽

10.14710/marj.v7i4.22670 ◽

2018 ◽

Vol 7 (4) ◽

pp. 458-464

Author(s):

Septya Mega Mahardhika ◽

Suradi Wijaya Saputra ◽

Churun Ain

Keyword(s):

Random Sampling ◽

Land Use Changes ◽

Economic Valuation ◽

Economic Value ◽

Market Price ◽

Secondary Data ◽

Travel Cost ◽

Economic Benefits ◽

Travel Cost Method ◽

Mangrove Ecosystems

Muara Angke merupakan satu – satunya kawasan yang masih memiliki ekosistem mangrove di daerah pesisir Jakarta. Luas Muara Angke kurang lebih 964,98 ha dibagi menjadi tiga zona. Dua diantaranya berkontribusi pada sektor Perikanan dan Ekowisata, yaitu Pangkalan Pendaratan Ikan (PPI) dan Taman Wisata Alam Angke Kapuk (TWAAK). Kurangnya pemahaman umum tentang manfaat ekonomi ekosistem mangrove menyebabkan masyarakat mengeksploitasi secara berlebihan sehingga terjadi perubahan penggunaan lahan. Tujuan penelitian ini untuk mengetahui nilai ekonomi yang dihasilkan ekosistem mangrove berdasarkan dua aspek yaitu Perikanan Tangkap dan Ekowisata. Data Perikanan Tangkap menggunakan data sekunder dari Pengelola PPI Muara Angke tahun 2016 – 2017. Data sosial ekonomi diperoleh menggunakan wawancara dengan bantuan kuesioner. Data biaya perjalanan rata – rata diperoleh dengan wawancara pengunjung TWAAK. Analisis Valuasi Ekonomi Perikanan Tangkap menggunakan Market Price Method. Analisis Valuasi Ekonomi Ekowisata Mangrove menggunakan Travel Cost Method. Metode penentuan 100 responden nelayan tangkap menggunakan Random Sampling sedangkan penentuan 100 responden pengunjung TWAAK menggunakan Accidental Sampling. Hasil penelitian didapatkan nilai ekonomi pada aspek perikanan tahun 2016 Rp. 13.148.945.100, tahun 2017 Rp.21.087.388.300 dan tahun 2018 Rp. 370.313.869.500. Hasil penelitian didapatkan nilai ekonomi ekowisata tahun 2018 Rp.40.28.400.000 Muara Angke is the only area that still has mangrove ecosystems in the coastal areas of Jakarta. Muara Angke area is approximately 964.98 ha divided into three zones. Two of them contribute to the Fisheries and Ecotourism sector, namely Fish Landing Base (PPI) and Angke Kapuk Nature Park (TWAAK). Lack of general understanding of the economic benefits of mangrove ecosystems causes people to over-exploit so that land use changes occur. The purpose of this study was to determine the economic value generated by mangrove ecosystems based on two aspects, namely Capture Fisheries and Ecotourism. Capture Fisheries Data uses secondary data from Muara Angke PPI Manager in 2016 - 2017. Socio-economic data were obtained using interview with Muara Angke fishermen with questionnaire assistance. Average travel cost data is obtained by interviewing TWAAK visitors. Capture Fisheries Economic Valuation Analysis using Market Price Method. Economic Valuation Analysis of Ecotourism Mangroves use the Travel Cost Method. The method of determining 100 respondents of capture fishermen uses Random Sampling while the determination of 100 respondents of TWAAK visitors uses Accidental Sampling. The results of the study obtained economic value in aspects of fisheries in 2016 Rp. 13,148,945,100, in 2017 Rp.21,087,388,300 and in 2018 Rp. 370,313,869,500. The results of the study obtained the economic value of ecotourism in 2018 Rp. 40.28.400.000

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VALUASI EKONOMI PEMANFAATAN EKOSISTEM MANGROVE DI KELURAHAN KANDANG PANJANG KOTA PEKALONGAN PROVINSI JAWA TENGAH Economic Valuation of Mangrove Ecosystem Utilization in Kandang Panjang Village, Pekalongan City, Central Java Province

Management of Aquatic Resources Journal (MAQUARES) ◽

10.14710/marj.v8i3.24247 ◽

2019 ◽

Vol 8 (3) ◽

pp. 133-138

Author(s):

Gita Maulida ◽

Supriharyono Supriharyono ◽

Suryanti Suryanti

Keyword(s):

Economic Valuation ◽

Economic Value ◽

Market Price ◽

Mangrove Ecosystem ◽

Economic Benefits ◽

Travel Cost Method ◽

Nursery Ground ◽

Replacement Cost ◽

Spawning Ground ◽

Transfer Method

ABSTRAK Ekosistem mangrove sebagai salah satu ekosistem di kawasan pesisir memiliki peran penting dalam aspek ekologi dan ekonomi. Ekosistem mangrove yang terletak di Kelurahan Kandang Panjang memiliki luas lahan 60 ha. Mengingat pentingnya peranan ekosistem mangrove tersebut maka diperlukan suatu kajian yang mampu mengestimasi besarnya nilai sumberdaya pada ekosistem mangrove dengan valuasi ekonomi. Penelitian ini bertujuan untuk menghitung nilai ekonomi manfaat langsung, manfaat tidak langsung, manfaat pilihan dan nilai ekonomi total pemanfaatan ekosistem mangrove. Metode analisis yang digunakan yaitu travel cost method, market price method, replacement cost method dan benefit transfer method. Nilai ekonomi manfaat langsung ekosistem mangrove di Kelurahan Kandang Panjang, meliputi: a) ekowisata; b) perikanan tangkap dan c) perikanan budidaya dengan total nilai Rp. 6.824.069.600,00 per tahun. Nilai ekonomi manfaat tidak langsung ekosistem mangrove di Kelurahan Kandang Panjang, meliputi: a) penahan abrasi dan b) tempat mencari makan (feeding ground), tempat pengasuhan (nursery ground) dan tempat pemijahan (spawning ground) dengan total nilai Rp. 886.842.900,00 per tahun. Nilai ekonomi manfaat pilihan ekosistem mangrove di Kelurahan Kandang Panjang, meliputi nilai biodiversitas dengan total nilai Rp. 224.084.000,00 per tahun. Nilai ekonomi total pemanfaatan ekosistem mangrove di Kelurahan Kandang Panjang dengan total nilai Rp. 7.934.996.500,00 per tahun. ABSTRACT Mangrove ecosystem as an ecosystem in coastal area with has an important role in ecologic and economic aspects. The mangrove ecosystem which is located in Kandang Panjang Village has 60 hectares area. Considering the important role of the mangrove ecosystem, there should be a study which is able to estimate the amount of resources value in mangrove ecosystem with economic valuation. The aims of this study is calculating the value of a direct economic benefits, an indirect economic benefits, an economic benefits of choice and a total economic benefit of the utilization of mangrove. An analytical method used in this study are travel cost method, market price method, replacement cost method and benefit transfer method. The direct economic benefits of mangrove ecosystem in Kandang Panjang Village, include: a) ecotourism b) catching fish and c) aquaculture with a total value of Rp. 6,824,069,600.00 per year. The indirect economic benefits of mangrove ecosystem in Kandang Panjang Village, includes: a) abrasion resistance and b) feeding ground, nursery ground and spawning ground with a total value of Rp. 886,842,900.00 per year. The economic value of choice of mangrove ecosystem in Kandang Panjang Village, includes: biodiversity value with a total value of Rp. 224,084,000.00 per year. The total economic value of the utilization of mangrove ecosystem in Kandang Panjang Village with a total value of Rp. 7,934,996,500.00 per year.

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KONDISI EKOSISTEM DAN VALUASI EKONOMI LAMUN DI PANTAI SAMUH, NUSA DUA, BALI

ECOTROPHIC Jurnal Ilmu Lingkungan (Journal of Environmental Science) ◽

10.24843/ejes.2020.v14.i02.p10 ◽

2020 ◽

Vol 14 (2) ◽

pp. 201

Author(s):

Cornelia Coraima Lazaren ◽

Made Antara ◽

Ida Ayu Astarini

Keyword(s):

Economic Valuation ◽

Economic Value ◽

Secondary Data ◽

Economic Benefits ◽

Primary Data ◽

Actual Condition ◽

Marine Biota ◽

Seagrass Ecosystem ◽

Seagrass Ecosystems ◽

Total Economic Value

Seagrass ecosystems in addition to providing economic benefits also have ecological functions, so it is highly recommended to conserve these ecosystems in order to preserve spawning areas, nurseries and habitats for fish and other marine biota. This study aims to identify the condition of seagrass ecosystems in Samuh Beach, Nusa Dua, estimating the economic value of the seagrass ecosystems in Samuh Beach, Nusa Dua and formulating for sustainable management of seagrass ecosystems in Samuh Beach, Nusa Dua. The study was conducted in January-March 2020 at Samuh Beach, Nusa Dua, Bali. Data collected includes secondary data and primary data. Secondary data were collected from related institutions, while primary data were collected through purposive sampling and questionnaires. The analysis used was description analysis, calculation of the economic value of marine resources through a Total Economic Value (TEV) and DPSIR analysis. This study found that the actual condition of the seagrass ecosystem resources in Samuh Beach is currently in the category of less rich/less healthy due to natural factors (substrate conditions) and human activity (anthropogenic). The economic value of seagrass ecosystems at Samuh Beach Nusa Dua, Bali showed the total economic value reached IDR. 327,843,325 per year and seagrass ecosystem management strategies that can be applied in the coastal area of ??Samuh Beach are the development of marine ecotourism, stock enrichment, and rehabilitation of seagrass beds. Keywords: Seagrass condition; TEV; economic valuation; Samuh beach.

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Economic Valuation of Mangrove Ecosystem in Coastal Area of Rokan Hilir Regency, Riau Province

Economic and Social of Fisheries and Marine ◽

10.21776/ub.ecsofim.2020.007.02.09 ◽

2020 ◽

Vol 007 (02) ◽

pp. 239-248

Author(s):

Trisla Warningsih ◽

◽

Kusai Kusai ◽

Zulkarnain Zulkarnain ◽

Lamun Bathara ◽

...

Keyword(s):

Coastal Area ◽

Economic Valuation ◽

Economic Value ◽

Mangrove Ecosystem ◽

Economic Benefits ◽

Coastal Areas ◽

Survey Method ◽

Direct Benefit ◽

Total Economic Value ◽

Method Analysis

Mangrove ecosystem is a very important resource for the continuity of community life in coastal areas. Mangrove ecosystem in the coastal area of downstream Rokan district has decreased mangrove area because it is used as a pond area to reduce the production of mangrove litter as an ecological function that can be a carrying capacity of coastal capture fisheries. However, the use of coastal areas as pond areas provides economic benefits for aquaculture. This study aims to calculate the economic value of the Rokan Hilir Coastal mangrove ecosystem. This research was conducted in March-April 2019 in the survey method. Analysis to calculate the total economic value of the mangrove ecosystem is NET=ML+MTL+MP. The results showed the total economic benefit value of Rokan Hilir mangrove forest reached IDR 98.697.950.594 / year was a direct benefit value of IDR 701,425,106 / year, indirect benefits were obtained at IDR 94,606,056,000 / year, and the optional benefits reached IDR 3,512,126,520 / year. Mangrove ecosystems are ecosystems that provide many benefits to the Rokan Hilir Coastal community, so this ecosystem is highly expected to be sustainable.

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ECONOMIC VALUATION OF MANGROVE FOREST IN THE EAST COAST OF THE CITY OF SURABAYA, EAST JAVA PROVINCE, INDONESIA

Journal of Developing Economies ◽

10.20473/jde.v4i1.12853 ◽

2019 ◽

Vol 4 (1) ◽

pp. 63 ◽

Cited By ~ 1

Author(s):

Deni Kusumawardani

Keyword(s):

Mangrove Forest ◽

Outdoor Recreation ◽

East Coast ◽

Economic Valuation ◽

Economic Value ◽

Economic Benefits ◽

Use Value ◽

Total Economic Value ◽

The City ◽

Direct Use

The city of Surabaya has been voted as one of the pilot areas of mangrove forest conservation in ASEAN. Most of the mangrove forest area in the city of Surabaya spread across the East Coast (Pamurbaya). The purpose of this study is to estimate the total economic value of mangrove forests in the area as a source of information for planning and evaluation of conservation policy. The results of the valuation involving some valuation techiques, both market and non-market approaches, yield total economic value of about Rp 49.6 billion (US$ 3.8 million) per year, or 105.3 million (US$ 8,101.8) per ha per year. Almost all of these values is the use value, particularly direct use valule both extractive (timber and fisheries) and non extractive (outdoor recreation). Indirect use value which consists of abrasion barrier and carbon sinks contributed relatively small compared to the direct use value. Meanwhile, non-use value is the smallest contributors to the total economic value. This fact proves that the mangrove forest in Pamurbaya has economic benefits outweigh the ecological benefits. Keywords: economic valuation, mangrove, non-market approach, the city of Surabaya

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QUANTIFICATION OF SOLID WASTE IN SCHOOL CANTEENS - A CASE STUDY FROM A HULU SELANGOR MUNICIPALITY, SELANGOR

PLANNING MALAYSIA JOURNAL ◽

10.21837/pm.v18i11.717 ◽

2020 ◽

Vol 18 (11) ◽

Author(s):

Saraswathy Kasavan ◽

Nurul Izzati Mohd Ali ◽

Nadia Azia Masarudin

Keyword(s):

Solid Waste ◽

Economic Valuation ◽

Economic Value ◽

Economic Benefits ◽

School Level ◽

Accurate Information ◽

Solid Waste Generation ◽

Per Capita ◽

Weighing Method

Obtaining empirical data on solid waste generation and composition is imperative to promote efficient waste management in schools. The paper aims to examine the characteristics and composition of waste generated ‘during food preparation’ stage and ‘after consumption’ stage, waste per capita and the assumption of economic valuation of solid waste for recycling. In this study, solid waste was quantified with transparency through adopting the direct weighing method to obtain reliable and accurate information of solid waste generated at the selected ten school canteens in Hulu Selangor municipality, Malaysia. Based on the result gathered, the total quantity of solid waste generated at 10 school canteens is about 162.8 kg/day with the average solid waste of 19.6 g per capita per day. The total assumption of the economic value of solid waste per day for recycling in all 10 schools’ canteens is about RM 30.70, which shows that recyclable materials have high revenue potential, as well as economic benefits. The present study empirically promotes the transparency of solid waste quantification at the school level, which could help identify hotspots and strategies with the greatest potential for waste reduction.

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Collection, conservation, exploitation and development of rice genetic resource of Vietnam

Journal of Vietnamese Environment ◽

10.13141/jve.vol6.no3.pp239-243 ◽

2014 ◽

Vol 6 (3) ◽

pp. 239-243

Author(s):

Duc Bach Nguyen ◽

Van Hai Tong ◽

Van Hung Nguyen ◽

Huu Ton Phan

Keyword(s):

Genetic Resources ◽

Genetic Resource ◽

Economic Benefits ◽

High Yield ◽

Viet Nam ◽

Rice Varieties ◽

Breeding Programs ◽

Rice Germplasm ◽

The North ◽

High Level

Genetic resources are important for the development of every country and for humanity. Collection, conservation and reasonable utilization of genetic resource is required mission. Understanding the importance of genetic resource, especially rice germplasm, since 2001, Center for conservation and development of crop genetic resources (CCD-CGR) of Hanoi University of Agriculture (Vietnam National University of Agriculture) has been collected, conserved and evaluated rice germplasm from different provinces of Vietnam for breeding programs. So far, 1090 accessions of local rice of Vietnam have been collected. Evaluation of agronomic properties and screening of some important genes using DNA molecular markers have revealed that Vietnamese rice germplasm has high level diversity and containing important genes for quality and resistance for disease and pests. These genetic resources are potential materials for national breeding programs. Based on the collected germplasm, 3 new glutinous rice varieties have been successfully created with high yield and good quality. In addition, the degradation of local rice varieties is also a matter of concern. So far, 4 specialty rice varieties Deo Dang, Ble chau, Pu de and Khau dao have been successfully restored for the north provinces of Vietnam. The main results of this study are germplasms for rice breeding programs and new improved varieties that bring economic benefits to farmers and the country. Nguồn gene là tài nguyên sống còn của mỗi quốc gia và của toàn nhân loại. Vì vậy thu thập, bảo tồn, đánh giá và khai thác hợp lý nguồn tài nguyên này có ý nghĩa rất lớn. Nhận thức được tầm quan trọng của nguồn gen nhất là nguồn gen cây lúa, ngay từ đầu những năm 2000, Trung tâm bảo tồn và phát triển nguồn gene cây trồng thuộc Trường Đại học nông nghiệp, nay là Học Viện nông nghiệp Việt Nam đã tiến hành thu thập, lưu giữ, đánh giá và khai thác nguồn gene lúa. Kết quả đã thu thập, lưu giữ được 1090 mẫu giống lúa địa phương Việt Nam. Đánh giá đặc điểm nông sinh học và phát hiện một số gene quy định các tính trạng chất lượng và kháng sâu bệnh bằng chỉ thị phân tử DNA. Đây là nguồn gene quan trọng cho chọn tạo giống. Dựa vào nguồn gene thu thập được, cho đến nay, Trung tâm bảo tồn và phát triển nguồn gene cây trồng đã lai và chọn tạo được thành công 03 giống lúa nếp chất lượng cao. Ngoài ra, thoái hóa giống cũng là vấn đề đang được quan tâm. Cho đến nay 4 giống lúa đặc sản Đèo đàng, Ble châu, Pu đe và Khẩu dao đã được phục tráng và đưa vào sản xuất. Kết quả của những nghiên cứu này là ngân hàng các giống lúa làm nguồn gene để chọn tạo giống mới đem lại lợi ích kinh tế cho người nông dân và đất nước.

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Pembentukan Koleksi Inti Plasma Nutfah Padi

Buletin Plasma Nutfah ◽

10.21082/blpn.v19n2.2013.p61-72 ◽

2016 ◽

Vol 19 (2) ◽

pp. 61 ◽

Cited By ~ 1

Author(s):

Tiur S. Silitonga ◽

Andari Risliawati

Keyword(s):

Genetic Resources ◽

Core Collection ◽

Seed Quality ◽

Amylose Content ◽

Leaf Blight ◽

Bacterial Leaf Blight ◽

Agronomic Performance ◽

Rice Varieties ◽

Brown Plant Hopper ◽

Rice Genetic

Development of Rice Core Collection. Tiur S. Silitonga and Andari Risliawati. Rice genetic resources have been collected from almost all of the district in the provinces of Indonesia. Presently, the collection of rice genetic resourses are totally 4.200 accessions. The purpose of these activities were to test, select and grouping of rice genetic resources to develop core collection. Various activities have been conducted such as characterization and selection of rice genetic resources to agronomic performance and yield, evaluation to brown plant hopper and grassy stunt virus and their resistance/tolerance to bacterial leaf blight, blast, and drought. Development core collection with various traits such as morphology and agronomy characteristics, yield component, seed quality, resistance to pest and diseases and tolerance to abiotic stresses will increase the use of rice genetic resources to create high yielding varieties with various traits. The availability of various rice varieties with traits needs could cover all the areas including lowland, upland, swampy areas, and marginal land areas with endemic attacked by pest and diseases. All rice genetic resources have been characterized to agronomic performance and yield in Sukamandi experimental farm, evaluated their resistance to brown plant hopper and bacterial leaf blight in Sukamandi and Cianjur, and drought tolerance in Jakenan, Central Java. The results of the experiment have developed core collection by grouping varieties with their traits such as 55 accession (accs.) of varieties with long panicle (>30 cm), 25 accs. short duration (<115 days), 32 accs. of dwarf plant (<115 cm), 25 accs. of short to medium duration (<130 days) with yielded 4.7-5.9 t/ha, 35 accs. have low to medium amylose content, 20 accs. resistant to brown plant hopper and grassy stunt virus, 33 accs. resistant to bacterial leaf blight, 23 accs. resistant to blast and 30 accs. tolerant to drought. AbstrakKoleksi plasma nutfah padi saat ini lebih dari 4.200 aksesi yang dikumpulkan dari hampir seluruh provinsi di Indonesia. Untuk meningkatkan pengelolaan dan pemanfaatan sumber daya genetik padi telah dilakukan pengujian, seleksi, dan pengelompokan varietas dalam bentuk koleksi inti. Tersedianya koleksi inti plasma nutfah padi dengan sifat agronomis, morfologis, komponen hasil terutama mutu gabah, kadar amilosa, dan ketahanan terhadap hama dan penyakit akan mempermudah pemanfaatannya dalam perakitan varietas unggul padi umur genjah, produksi tinggi, dengan mutu beras dan rasa nasi yang enak. Penelitian ini bertujuan untuk membentuk koleksi inti dengan cara menyeleksi dan mengelompokkan sumber daya genetik padi pada berbagai sifat penting seperti umur genjah, tanaman pendek, hasil tinggi, toleran terhadap cekaman biotik dan abiotik, bentuk beras, dan kadar amilosa. Tersedianya beragam varietas dalam koleksi inti dengan berbagai sifat yang diinginkan akan mempermudah akses dan pemanfaatan oleh para pengguna, terutama pemulia, dalam perakitan varietas baik padi sawah, padi gogo, dan padi lahan rawa pasang surut. Hampir seluruh plasma nutfah padi telah dikarakterisasi dan diseleksi terhadap sifat agronomis dan hasil di KP Sukamandi. Seleksi terhadap hama wereng coklat dan penyakit hawar daun bakteri dilakukan di Sukamandi dan Cianjur, dan pengujian toleransi kekeringan di KP Jakenan, Jawa Tengah. Dari hasil pengujian telah dibentuk koleksi inti plasma nutfah padi dengan sifat penting, antara lain sebanyak 55 aksesi dengan malai panjang (>30 cm), 25 aksesi berumur genjah (<115 hari), 32 aksesi tanaman pendek (<115 cm), 25 varietas memiliki potensi hasil antara 4,7-5,9 t/ha dan umur genjah sampai sedang (<130 hari), 35 aksesi kadar amilosa rendah sampai sedang, 20 aksesi tahan terhadap hama wereng coklat dan virus kerdil rumput, 33 aksesi tahan terhadap penyakit hawar daun bakteri, 23 aksesi tahan penyakit blas, dan 30 aksesi toleran kekeringan.

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