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KERAGAAN BEBERAPA VARIETAS PADI BERAS MERAH TERHADAP PEMUPUKAN K PADA LAHAN PASANG SURUT TIPE B Asmawati, Asmawati; Wijaya, Andi; Putro Priadi, Dwi; Agus Suwignyo, Rujito
Klorofil: Jurnal Penelitian Ilmu-Ilmu Pertanian Vol 11, No 1 (2016): Klorofil
Publisher : Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jk.v11i1.214

Lahan pasang surut salah satu lahan suboptimal yang dapat dimanfaatkan sebagai arealpengembangan pertanian, karena lahan ini tersedia cukup luas di Indonesia. Keracunan besi pada tanamanpadi beras merah dipengaruhi oleh lingkungan tumbuh dan kepekaan varietas tanaman padi beras merah.Penelitian bertujuan untuk menganalisis karakter morfologi dan fisiologi pemupukan K terhadap serapan Fevarietas padi beras merah. Penelitian dilaksanakan pada lahan pasang surut tipe B, di Desa Telang SariBanyuasin, Sumatera Selatan pada bulan Desember 2014 hingga bulan Mei 2015. Penelitianmenggunakan Rancangan Acak Kelompok (RAK) yang terdiri dari dua faktor, yaitu varietas terpilih 4 varietasdan takaran pupuk K ( 0, 50, 100 dan 150 Kg KCl/ ha) dan diulang 3 kali. Tanaman padi ditanam dengansistem tabela pada plot yang berukuran 3 x 2 m, dengan jarak antar plot 1 m. Data dianalisis dengan uji F,jika hasil uji berpengaruh nyata maka dilanjutkan dengan uji BNJ. Hasil penelitian menunjukkan bahwaserapan Fe yang tinggi pada tanaman padi beras merah menyebabkan terjadinya perubahan baik karaktermorfologi maupun fisiologi tanaman, dimana respon setiap varietas berbeda-beda tergantung sifat toleransiatau kepekaanya terhadap serapan Fe. Pemupukan K (100 kg/ha dan 150 kg/ha) mempengaruhi serapanFe pada jaringan tanaman, juga mempengaruhi pertumbuhan dan hasil Padi Beras Merah

KOMPOSISI DAN KELIMPAHAN FITOPLANKTON DI PERAIRAN SALURAN IRIGASI PASANG SURUT DI DESA MULYA SARI KECAMATAN TANJUNG LAGO Khairunnisa, Eka Nurriza; Hanafiah, Zazili; Priadi, Dwi Putro
Maspari Journal : Marine Science Research Vol 9, No 2 (2017): Edisi Juli
Publisher : UNIVERSITAS SRIWIJAYA

Mulya Sari merupakan salah satu desa dengan tipe lahan rawa pasang surut yang memanfaatkan saluran irigasi sebagai sarana untuk mengairi berbagai aktivitas masyarakat seperti kegiatan pertanian, perikanan maupun kegiatan masyarakat rumah tangga. Sampai saat ini, informasi mengenai perairan saluran irigasi di desa Mulyasari masih sangat terbatas sehingga dilakukan penelitian ini. Tujuan penelitian ini adalah untuk mengetahui komposisi fitoplankton melalui studi langsung ke lokasi perairan saluran irigasi desa Mulya Sari. Pengambilan data dan pengukuran dilakukan pada Mei 2016. Dari penelitian yang di lakukan pada saluran irigasi Desa Mulya Sari ditemukan sebanyak 12 jenis, yang teridiri dari 4 jenis dari kelas Cyanophyceae, 4 jenis dari kelas Conjugatophyceae (Zygnematophyceae), dan 4 jenis dari kelas Bacillariophyceae. Hasil penelitian juga menunjukkan bahwa kualitas fisika dan kimia perairan pada saluran irigasi kurang baik untuk pertumbuhan fitoplankton yang merupakan produsen primer pada rantai makan di ekosistem perairan.KATA KUNCI: Fitoplankton, rawa pasang surut, saluran irigasi.

CANDIDATE GENES IDENTIFICATION OF OIL PALM (Elaeis guineensis Jacq.) INTEREST CHARACTERS USING PUBLISHED DATABASE Sarimana, Upit; Putro Priadi, Dwi; Hasmeda, Mery; Erika, Pratiwi; Herrero, Javier; Santika, Baitha; Wendra, Fahmi; Sembiring, Zulhermana; Asmono, Dwi
BIOVALENTIA: Biological Research Journal Vol. 7 No. 1 (2021)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Palm oil has supplied more than 30% of vegetable oil consumption worldwide. Rising demand has pushed oil palm plantations to increase the yield. It is well known that genetic has played a significant role in phenotypic performance. Moreover, in recent years, genomic data has emerged tremendously. Unfortunately on the gene related to oil palm yield. Therefore, a preliminary study to classify and select oil palm candidate genes associated with characteristic by scanning existing genes in oil palm or other in-silico species were conducted. Based on Blast2Go results, 22 genes related to oil biosynthesis, two specifically related to fruit number and fruit weight were analysed. Furthermore, 19 candidate genes were able to amplify.

KERAGAMAN MORFOFISIOLOGI TANAMAN KELAPA SAWIT DI LAHAN GAMBUT / Morphophysiology Performances of Oil Palm on Peat Land . MARLINA; MERY HASMEDA; RENIH HAYATI; DWI PUTRO PRIADI
Jurnal Penelitian Tanaman Industri Vol 23, No 2 (2017): Desember, 2017
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/littri.v23n2.2017.98-104

Oil palm plant (Elaeis guineensis Jacq.) has been extensively cultivated on peat land. The aim of this research was to evaluate morpho-physiology and yield of six years old SJ2 variety. The research was conducted on 2,5 until 4 metres depth, hemiks and in land peat at Muara Enim District, South Sumatera, from May 2012 –January 2013. The design of research was on Randomized Block Designed, with one treatment. The treatment was the trunk apperiance, base on slope degrees between the trunk and soil surface, and 2 replications. The trunk appearances based on degree of slope between the trunk and soil surface, composed of: upright (900), moderate slope (600 ≤ angel < 900), high slope (leaning) (450 ≤ angel <600), and lay down (toppling)(00). The result showed the upright and moderate slope plants had narrow leaflets, short and few frond, low LAI (2,53 and; 2,73) and high primary root population density. The leaned and the toppled plants had broad leaflets; high LAI (6,15 and; 4,33); high root surface area density of secondary root; high root dry weight and low primary root population density. The upright plants had better growth quality than the leaned and toppled plants, with low in leaf Al concentration 105,05 ppm and leaf N : P ratio 13,95 and high yield 2,43 kg FFB /plant /harvest on the first year.Keywords: Elaeis guineensis Jacq., morpho-physiology, peat land, performance. AbstrakTanaman kelapa sawit (Elaeis guineensis Jacq.) sebagian besar ditanam di lahan gambut. Tujuan penelitian mengevaluasi morfo-fisiologi pertumbuhan dan hasil berdasarkan keragaan tanaman kelapa sawit varietas SJ2 umur 6 tahun. Penelitian dilakukan di Kabupaten Muara Enim, Sumatera Selatan, pada lahan gambut dengan kedalaman antara 2,5 sampai 4 meter, hemiks dan in land pada Mei 2012 sampai Januari tahun 2013. Penelitian menggunakan Rancangan Acak Kelompok, satu perlakuan. Perlakuannya adalah ketegakan tanaman kelapa sawit var. SJ2 umur 6 tahun berdasarkan nilai 0 sudut yang terbentuk antara batang dengan permukaan gambut, dengan ulangan sebanyak 2 kali. Perlakuan perbedaan kenampakan tegak batang, yaitu: tegak (900 ), agak miring (600 ≤ sudut < 900 ), sangat miring (450 ≤ sudut < 6 0 ), dan roboh (00 ). Hasil menunjukkan bahwa tanaman dengan keragaan tegak dan agak miring memiliki anak daun sempit, pelepah pendek dan sedikit dengan ILD rendah 2,53 dan 2,73, serta densitas populasi akar primer tinggi. Tanaman yang sangat miring dan rebah memiliki anak daun luas; ILD tinggi 6,15 dan 4,33; densitas luas area permukaan akar sekunder dan bobot kering populasi akar tinggi, tetapi densitas populasi akar primer rendah. Tanaman dengan keragaan yang tegak lebih mempunyai kualitas pertumbuhan yang lebih tinggi dibanding yang sangat miring maupun rebah, dengan konsentrasi Al daun 105,05 ppm maupun rasio N : P daun 13,95 yang rendah. Hasil TBS tertinggi 2,43 kg/tanaman/panen di tahun pertama pada tanaman dengan keragaan tegak.Kata kunci: Elaeis guineensis Jacq., keragaan, lahan gambut, morfo-fisiologi.

Karakteristik dan Kemelimpahan Nepenthes di Habitat Miskin Unsur Hara Mardhiana Mardhiana; Yakup Parto; Renih Hayati; Dwi Putro Priadi
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 1 No. 1 (2012)
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Mardhiana et al., 2012.Â The Characteristics and Abundance of Nepenthes of Nutrient-poor Habitats. JLSO 1(1):50-56.This research aimed at assesing the characteristics and abundanceof Nepenthespopulation in nutrient-poor habitats. This study was conducted at two locations, Talang Kelapa village, Banyuasin Km 10, and Pasir Putih village, Sukajadi, Banyuasin Km 18. Observations were made onÂ the soil chemical and physical properties, morphologyÂ and population abundanceÂ of Nepenthes. The result showed Â that N. mirabilis was the only species found in Â Talang Kelapa and Pasir Putih.Â Nepenthes upwere able to grow well in very poor soil nutrients. Natural habitat in Pasir Putih with sandy soilÂ and water log condition gave better effect on the morphology and abundance in than in Talang Kelapa withÂ clay soil and dry.Â The ratio of Â Nepenthes abundance in Pasir Putih to that in Talang Kelapa was 3:2.Â

Oil Palm Fruit Bunch Yield Fluctuation between Dry and Rainy Season in Dry and Wetland Dwi Putro Priadi; Nusyirwan Abuchatam; J. Simangunsong
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 2 No. 1 (2013)
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

The objective of this research was to study how much yield difference of fresh fruit bunch of oil palm between dry and rainy season, and whether the yield difference much in dry land compare with wetland. The research was conducted in Entisol of PTPN VII Betung, and in Ultisol of PTP Hindoli, both in Sungai Lilin Regency. Yield data used in this study was data of year 2007âˆ’2010. Rainfall data during 2007âˆ’2010 showed no absolute dry month during dry seasons. The result of the study indicated that yield in dry land higher than in wetland either in dry season or in rainy season. Yield fluctuated between dry and rainy season either in dry land or in wetland. But, yield in rainy season did not consistently higher than in dry season. It was concluded that oil palm yield was influenced not only by soil water supply and rainfall quantity, but also internal and many other external factors.

Kajian Teknik Pemberian Hara Terhadap Pertumbuhan dan Perkembangan Nepenthes mirabilis Mardhiana Mardhiana; Yakup Parto; Renih Hayati; Dwi Putro Priadi
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 4 No. 1 (2015): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

The objective of this research was to study the effect of nutrient fertilization on the growth and development of nepenthes (Nepenthes mirabilis). The research was conducted from October 2011 until March 2012 at Sukarami village, Palembang, Indonesia. Factorial randomized block design with two treatment factors was applied. The first factor was NPK fertilizer dosage which consisted of three levels: Po = no fertilizer, P1 = 5 g, P2 = 10 g. The second factor was number of ants: S0 = none, S1 = 20, S2 = 40, S3 = 60. The results indicated that NPK fertilizer application of 5-10 g to the planting media could increase plant growth and development, particularly in plant height, stem girth, and leaf number of N. mirabilis. Giving 60 ants per plants into nepenthes pitcher could yield the largest pitcher number, 3-4 pitcher per plant. Combination of 5 g NPK and 20 ants, similarly, combination of 10 g NPK and 0 ants resulted in the largest leaf increment (10-11 leaves). Combination of 0 NPK and 60 ants resulted in the largest pitcher number (3-4 pitcher per plant).

Effect of Plant Gowth Regulator on The Gowth of Zygotic Embryos in Three Types of Oil Palm Fruit (Elaeis guineensis Jacq.) in Tissue Culture Hadi Surahman; Gogoh Sulaksono; Zulhermana Sembiring; Astuti Kurnianingsih; Dwi Putro Priadi; Dwi Asmono
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 9 No. 2 (2020): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33230/JLSO.9.2.2020.474

Surahman H, Sulaksono G, Sembiring Z, Kurnianingsih A, Priadi DP, Asmono D. 2020. Effect of plant gowth regulator on the gowth of zygotic embryos in three types of oil palm fruit (Elaeis guineensis Jacq.) in tissue culture. Jurnal Lahan Suboptimal : Journal of Suboptimal Lands 9(2): 149-159.Embryo culture is a widely used and effective way of overcoming the dormancy nature of seeds in oil palm.Â At the germination stage, the influence of gowth regulators play an important role although in relatively lower concentrations in the germination media. This aim research determined the effect of adding various concentrations of gowth regulator on the three types of oil palm fruit based on the thickness of the shell. This research carried out at the Tissue Culture Laboratory of PT. Sampoerna Ago Tbk. from September 2018 to January 2019. The gowth regulator substances used in this study were NAA, BAP and GA3. The composition of the gowth regulators used were H1 = 0.05 mg/L NAA + 0.1 mg/L BAP + 0.1 mg/L GA3, H2 = 0.05 mg/L NAA + 0.3 mg/L BAP + 0.1 mg/L GA3, H3 = 0.05 mg/L NAA + 0.5 mg/L BAP + 0.1 mg/L GA3 and H4 = No gowth regulator. While the types of oil palm fruit used were C1 = Dura, C2 = Tenera and C3 = Pisifera. This research used a factorial complete randomized design with three replications. The results showed that in general the use of gowth regulator substances H1 = 0.05 mg/L NAA + 0.1 mg/L BAP + 0.1 mg/L GA3 and the type of dura fruit showed positive results based on viability, scoring, survival and height of plantlets when compared with other treatments.

KERAGAMAN MORFOFISIOLOGI TANAMAN KELAPA SAWIT DI LAHAN GAMBUT / Morphophysiology Performances of Oil Palm on Peat Land . MARLINA; MERY HASMEDA; RENIH HAYATI; DWI PUTRO PRIADI
Jurnal Penelitian Tanaman Industri Vol 23, No 2 (2017): Desember, 2017
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/littri.v23n2.2017.98-104

Oil palm plant (Elaeis guineensis Jacq.) has been extensively cultivated on peat land. The aim of this research was to evaluate morpho-physiology and yield of six years old SJ2 variety. The research was conducted on 2,5 until 4 metres depth, hemiks and in land peat at Muara Enim District, South Sumatera, from May 2012 –January 2013. The design of research was on Randomized Block Designed, with one treatment. The treatment was the trunk apperiance, base on slope degrees between the trunk and soil surface, and 2 replications. The trunk appearances based on degree of slope between the trunk and soil surface, composed of: upright (900), moderate slope (600 ≤ angel < 900), high slope (leaning) (450 ≤ angel <600), and lay down (toppling)(00). The result showed the upright and moderate slope plants had narrow leaflets, short and few frond, low LAI (2,53 and; 2,73) and high primary root population density. The leaned and the toppled plants had broad leaflets; high LAI (6,15 and; 4,33); high root surface area density of secondary root; high root dry weight and low primary root population density. The upright plants had better growth quality than the leaned and toppled plants, with low in leaf Al concentration 105,05 ppm and leaf N : P ratio 13,95 and high yield 2,43 kg FFB /plant /harvest on the first year.Keywords: Elaeis guineensis Jacq., morpho-physiology, peat land, performance. AbstrakTanaman kelapa sawit (Elaeis guineensis Jacq.) sebagian besar ditanam di lahan gambut. Tujuan penelitian mengevaluasi morfo-fisiologi pertumbuhan dan hasil berdasarkan keragaan tanaman kelapa sawit varietas SJ2 umur 6 tahun. Penelitian dilakukan di Kabupaten Muara Enim, Sumatera Selatan, pada lahan gambut dengan kedalaman antara 2,5 sampai 4 meter, hemiks dan in land pada Mei 2012 sampai Januari tahun 2013. Penelitian menggunakan Rancangan Acak Kelompok, satu perlakuan. Perlakuannya adalah ketegakan tanaman kelapa sawit var. SJ2 umur 6 tahun berdasarkan nilai 0 sudut yang terbentuk antara batang dengan permukaan gambut, dengan ulangan sebanyak 2 kali. Perlakuan perbedaan kenampakan tegak batang, yaitu: tegak (900 ), agak miring (600 ≤ sudut < 900 ), sangat miring (450 ≤ sudut < 6 0 ), dan roboh (00 ). Hasil menunjukkan bahwa tanaman dengan keragaan tegak dan agak miring memiliki anak daun sempit, pelepah pendek dan sedikit dengan ILD rendah 2,53 dan 2,73, serta densitas populasi akar primer tinggi. Tanaman yang sangat miring dan rebah memiliki anak daun luas; ILD tinggi 6,15 dan 4,33; densitas luas area permukaan akar sekunder dan bobot kering populasi akar tinggi, tetapi densitas populasi akar primer rendah. Tanaman dengan keragaan yang tegak lebih mempunyai kualitas pertumbuhan yang lebih tinggi dibanding yang sangat miring maupun rebah, dengan konsentrasi Al daun 105,05 ppm maupun rasio N : P daun 13,95 yang rendah. Hasil TBS tertinggi 2,43 kg/tanaman/panen di tahun pertama pada tanaman dengan keragaan tegak.Kata kunci: Elaeis guineensis Jacq., keragaan, lahan gambut, morfo-fisiologi.

Structure Of Polychaeta Community In Banyuasin Mangrove Coast Waters, South Sumatera Yosafat Tawanggian; Zazili Hanafiah; Dwi Putro Priadi
Sriwijaya Journal of Environment Vol 7, No 1 (2022): LAW AND SUSTAINABLE RESOURCES
Publisher : Program Pascasarjana Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22135/sje.2022.7.1.1-9

This study aims to determine the Structure of Polychaeta Community, and how the physical and chemical conditions and describe water conditions based on aquatic biota. The research time took place in April – October 2020. The determination of the sampling location was carried out using the Purposive Sampling method, which is based on differences in environmental baseline around. Identification of polychaeta samples was carried out at the Animal Ecology Laboratory, Department of Biology, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Indralaya. The results obtained 22 polychaeta genera consisting of 22 classes namely Sternaspidae, Arenicolidae, Ctenodrilidae, Parergodrilidae, Magelgnidae, Heterospionidae, Capitellidae, Scalibregmidae, Ophellidae, Pontodoridae, Pisionidae, Hesionidae, Eunicidae, Flabelligeridae, Fauveliopsidae, Neriophilidae, Culiridae Cossuridae, Alciopidae, and Nereididae. The species diversity index belongs to the medium category, which ranges from 1.8 to 2.81. The dominance index of polychaeta in the coastal waters of the Banyuasin mangrove is relatively small or no species dominates because all stations have an average dominance index value below 0.5. While the physico-chemical factors of the waters in this river are classified as stable.

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