Keragaman genetik cendana (Santalum album) dan tindakan reintroduksi ke Nusa Tenggara Timur

Sumardi, Sumardi; Fiani, Ari

doi:10.13057/psnmbi/m010304

Cited by 5 publications

(5 citation statements)

References 3 publications

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“…In addition, using rootsuckers for rootstocks gives more advantages in genetic base enrichment by adding some new genotypes to the population. Many studies revealed that the root-suckers -the genotypically identical shoots that emerged from parental horizontal roots --caused crucial problems in sandalwood mating systems, since the mature root-suckers will mate with each other and increase the geitonogamy in a population (Warburton et al 2000;Lhuillier et al 2006;Rao et al 2007;Dani et al 2011;Sumardi and Fiani 2015;Ratnaningrum et al 2015;2017a;Ratnaningrum and Kurniawan 2019;Sandeep et al 2019). Therefore, replacing the apical shoots of root-suckers using different genotypes will increase genetic diversity in the population, avoiding the probability of inbreeding.…”

Section: Resultsmentioning

confidence: 99%

Establishing breeding house of superior sandalwood in Gunung Sewu, Indonesia: preserving the 27 selected genotypes grafted onto two types of rootstocks

Ratnaningrum

Faridah²,

UTAMA³

et al. 2022

Biodiversitas

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Abstract. Ratnaningrum YWN, Faridah E, Utama INS, Prastyo B. 2022. Establishing breeding house of superior sandalwood in Gunung Sewu, Indonesia: preserving the 27 selected genotypes grafted onto two types of rootstocks. Biodiversitas 23: 3488-3497. Developing methods for vegetative propagation of sandalwood (Santalum album Linn.) is important for the mass production of selected genotypes. Previous research has selected the superior genotypes of sandalwood in Gunung Sewu based on seed production, crossing-ability, santalol content and/or the rare alleles characters. This study estimates the grafting compatibility of 27 selected genotypes of sandalwood, which are grafted onto two types of rootstock. In the peak rainy season in February 2021, scions were picked from the 27 genotypes originating from four landraces (Imogiri, Bejiharjo, Bleberan and Petir) in Gunung Sewu. Scions were then grafted onto two types of rootstock using the top-cleft technique. The first rootstock type is the 8 months old seedlings of the red-big-flower sandalwood variant planted in a polybag (Type 1); while the second one is the root-suckers that emerged from horizontal roots (Type 2). Results revealed Petir genotypes as the most surviving scions (100% in Type 2 and 75% in Type 1 rootstock), followed by those originating from Imogiri. All four genotypes originating from Petir (Pt1, Pt2, Pt3 and Pt4) achieved the highest scores in most of the parameters observed. The Type 2 rootstock survived more grafts (57%) compared to those of Type 1 (49%). The number of shoots and the height increment of grafting showed significant differences. The top-cleft grafting technique is considered effective in conserving the superior genotypes of sandalwood and to provide a copy of those genotypes for materials of the crossing units. The use of Petir and Imogiri genotypes as the scions, and the red-big flower variant root-suckers as the rootstocks, are highly recommended for the best grafting success.

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Section: Resultsmentioning

confidence: 99%

Establishing breeding house of superior sandalwood in Gunung Sewu, Indonesia: preserving the 27 selected genotypes grafted onto two types of rootstocks

Ratnaningrum

Faridah²,

UTAMA³

et al. 2022

Biodiversitas

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“…Fragment-type microplastics have irregular structures with sharp edges, usually originating from strong plastic polymers such as pieces of drinking bottles, PVC pipes, and other food packaging materials (Ridlo et al, 2020). Pellettype microplastics can originate from materials used in household activities, such as wastewater containing plastic pellets (Hiwari et al, 2019).…”

Section: The Presence Of Microplastics In Fishmentioning

confidence: 99%

Microplastic Content in Fish and Sea Water at Air Tawar Coast, Padang City, Indonesia

Azzahra,

Yulianto,

Ighwerb

2024

J Mar Biotechnol Immunol

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Every year, millions of tons of plastic contaminate marine ecosystems, disrupting the natural balance and endangering marine life. Marine debris, especially plastic, is exposed to sunlight and repeated physical activities in the ocean, eventually breaking down into microscopic particles known as microplastics. This research aims to identify the presence of microplastics in fish and seawater at Air Tawar Coast, Padang City, Indonesia, based on their shapes, colors, and sizes. Seawater samples were collected at 3 stations using purposive random sampling along the direction of net trawling. Water samples were collected using a plankton net and filtered horizontally at the sea surface. Fish samples were obtained from the catches of fishermen, using trawl net (maelo pukek). The fish sampled were Selar and Kembung fish. Microplastics found in seawater and fish exhibited various shapes, including fibers, films, fragments, and pellets, with pellets and granules being the most dominant shapes. The colors of microplastics found in this study were black, brown, red, orange, blue, yellow, green, and purple, with dark colors (black and brown) being the most dominant. The abundance of microplastics at station 1 was 140.12 particles/m3, at station 2 was 151.27 particles/m3, and at station 3 was 129.61 particles/m3. The number of microplastic particles found in Kembung was higher than in Selar. On average, Selar fish contained 228 particles/individual, while Kembung fish contained an average of 267.5 particles/individual. The smallest particle size was found in pellet form, with a size of 8.12 µm, while the largest particle size was found in film form, measuring 174.56 µm.

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“…Teluk Kupang merupakan area pesisir berpenduduk padat, dimana sebagian besar menjadikan pesisir sebagai tempat untuk membuang limbah dari aktivitas rumah tangga atau pemukiman, industri, dan pariwisata serta pembuangan sampah lainnya yang dapat menjadi sumber mikroplastik. Banyaknya mikroplastik tipe fiber juga berasal dari aktivitas penangkapan oleh nelayan seperti tali kapal, benang pancing, jarring, tali budidaya rumput laut (Hiwari et al 2019).…”

Section: Kelimpahan Jenis Mikroplastikunclassified

“…Sumber pada pertanian maupun pemukiman yang dapat menghasilkan mikroplastik fragmen yaitu sampah botol, toples, ember, map mika, kontainer atau derigen, pipa irigasi, pot plastik, dan potongan kecil pipa paralon (Azizah et al 2020). Pada penelitian Hiwari et al (2019) ditemukan mikroplastik jenis fragmen di Pulau Oeseli yang diduga berasal dari aktivitas domestik.…”

Section: Kelimpahan Jenis Mikroplastikunclassified

Jenis dan kelimpahan mikroplastik pada ikan kakap merah (Lutjanus malabaricus) di Perairan Teluk Kupang, Nusa Tenggara Timur

Ngai,

Toruan,

Tallo

2024

Habitus Aqua J

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Mikroplastik adalah partikel plastik yang memiliki ukuran <5 mm. Ukuran yang kecil menyebabkannya bisa ditransportasikan ke semua perairan dan biota termasuk ikan. Sumber limbah mikroplastik di perairan antara lain dari industri, pertanian, dan aktivitas antropogenik di mana keseluruhannya dapat menjadi sumber pencemaran mikroplastik di laut. Ikan kakap merah (Lutjanus malabaricus) merupakan salah satu jenis ikan demersal yang hidup secara berkelompok di dasar karang atau terumbu karang. Ikan kakap merah adalah salah satu kategori produk perikanan yang memiliki nilai ekonomis penting dan banyak diminati masyarakat. Penelitian ini bertujuan untuk mengidentifikasi jenis, warna, kelimpahan, dan ukuran mikroplastik pada ikan kakap merah. Pengambilan sampel dilaksanakan pada Bulan September-Oktober 2022 dengan total sampel yang dikaji sebanyak 50 ekor ikan. Identifikasi mikroplastik berdasarkan bentuk, ukuran, dan warna pada partikel mikroplastik. Hasil penelitian menemukan sebanyak 1.593 partikel mikroplastik pada sampel ikan kakap merah yang terdiri dari jenis fiber, fragmen, film, dan granula. Kelimpahan mikroplastik paling tinggi didominasi jenis fiber yaitu 17,98 partikel/individu pada insang dan 11,66 partikel/individu pada usus. Kelimpahan mikroplastik paling rendah secara keseluruhan yaitu pada insang dengan jenis film 0,28 partikel/individu dan jenis granula ditemukan 0,3 partikel/individu. Warna mikroplastik yang ditemui yaitu warna putih, hitam, merah, kuning, biru, transparan, dan hijau. Warna mikroplastik tertinggi yang ditemukan secara keseluruhan didominasi oleh warna putih, baik pada insang (52,45%) maupun pada usus (48,74%), sedangkan yang paling rendah adalah warna hijau yang ditemui pada insang (0,42%) dan pada usus (0,79%). Mikroplastik yang ditemui memiliki ukuran yang bervariasi yaitu <0,25 mm - >2 mm. Mikroplastik yang ditemukan pada kedua organ ikan paling banyak berukuran 0,50 mm - 2 mm. Mikroplastik berukuran <0,25 mm ditemukan sangat sedikit, baik pada usus maupun insang.

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Keragaman genetik cendana (Santalum album) dan tindakan reintroduksi ke Nusa Tenggara Timur

Cited by 5 publications

References 3 publications

Establishing breeding house of superior sandalwood in Gunung Sewu, Indonesia: preserving the 27 selected genotypes grafted onto two types of rootstocks

Establishing breeding house of superior sandalwood in Gunung Sewu, Indonesia: preserving the 27 selected genotypes grafted onto two types of rootstocks

Microplastic Content in Fish and Sea Water at Air Tawar Coast, Padang City, Indonesia

Jenis dan kelimpahan mikroplastik pada ikan kakap merah (Lutjanus malabaricus) di Perairan Teluk Kupang, Nusa Tenggara Timur

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