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STABILITAS HASIL DAN KEMAMPUAN ADAPTASI GALUR-GALUR PADI Fe TINGGI MENGGUNAKAN ANALISIS AMMI (ADDITIVE MAIN EFFECT AND MULTIPLICATIVE INTERACTION) Nurchasanah, Siti; , Suwarto
Prosiding Vol 3, No 1 (2012)
Publisher : Prosiding

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Abstract

Identifikasi suatu varietas yang memiliki hasil tertinggi pada suatu lingkungan tertentu mendasarkan pada nilai genotipe dan interaksi genotipe x lingkungan sangat bermanfaat bagi pemulia dan petani. Estimasi hasil suatu varietas mendasarkan pada nilai genotipe dan lingkungan masih belum cukup. Tujuan penelitian adalah untuk menunjukkan kegunaan model analisis AMMI (additive main effect and multiplicative interaction) dalam identifikasi stabilitas hasil dan adaptabilitas suatu verietas. Data produksi tujuh galur padi Fe tinggi yang ditanam delapan kondisi lingkungan digunakan dalam analisis untuk mencapai tujuan penelitian. Hasil penelitian menunjukkan galur G2 merupakan genotipe ideal karena memiliki produksi gabah tertinggi dan memiliki stabilitas tertinggi, serta memiliki kemampuan adaptasi luas. Analisis model AMMI menggambarkan pola interaksi suatu genotipe dengan lingkungan, menggambarkan kesesuaian suatu genotipe dengan suatu lingkungan, nilai nominal hasil suatu genotipe pada suatu lingkungan, stabilitas suatu genotipe, adaptabilitas genotipe, dan pola hubungan lingkungan dengan genotipe.
UJI ADAPTASI VARIETAS UNGGUL PADI GOGO PADA POLA TANAM TUMPANGSARI DENGAN TANAMAN UBIKAYU DI KABUPATEN PURBALINGGA(ADAPTABILITY OF HIGH YIELDING UPLAND RICE VARIETY ON THE INTERCROPPING WITH CASSAVA IN PARBALINGGA REGENCY) , Suwarto
Pembangunan Pedesaan Vol 1, No 1 (2001)
Publisher : Pembangunan Pedesaan

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Penelitian ini telah dilakukanp ada musim penghujan tahun 2000 di Dcsa Pesunggingan, Pengadegan Purbalingga. Tujuan penelitian ini adalah untuk rnengevaluasi varietas padi gogo yang cocok untuk tumpangsari dengan tanaman ubi kayu. Empat varates tanaman padi gogo yang sempat diuji adalah danau tempe, poso, jatiluhur, IR 64. Hasil penelitian menunjukkan bahwa sistem tumpangsari padi gogo Dengan tanaman ubikayu dapat dikembangkan di Purbalingga. Padi gogo varietas danau Tempe memberikan hasil dan keuntungan terbesar.
PEMANFAATAN LAHAN TERNAUNGI UNTUK BUDIDAYA PADI GOGO DALAM RANGKA MENINGKATKAN KETERSEDIAAN PANGAN DI PEDESAAN(Studi Efisiensi Pemanfaatan Hara Pada Padi Gogo di Lahan Ternaungi)(UTILIZATION OF SHADED LAND IN RURAL AREAS FOR UPLAND RICE CALTIVATION TO INCREASE FOOD AVAILABILITY (A study on nutrient utilization efficiency of upland rice cultivated under shading) , Suwarto
Pembangunan Pedesaan Vol 1, No 2 (2001)
Publisher : Pembangunan Pedesaan

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Penelitian telah dilakukan di sentra produksi sayuran wilayah Kabupaten Banjarnegara untuk mengetahui populasi dan serangan hama lalat daun kentang Liriomyzas pp., pola penggunaan pestisida, residu insektisida dan keuntungan usaha tani kentang. Penelitian dilakukan secara survei dengan metode stratified random sarnpling. Hasil penelitian menunjukan bahwa populasi lalat daun kentang di wilayah penelitian Pada tanaman umur 20; 40:60; dan 80 hari setelah tanam untuk lokasi SL-PHT masing masing sebesar 0 ,00, 0,33, 0,47, dan 0,55 lalat, sedangkan untuk lokasi non SL – PHT Sebesar 0 ,00, 0,23, 2,01, dan 0,85 lalat. Intensitas serangan hama lalat daun kentang meningkat dengan bertambahnya umur tanaman, tertinggi mencapai 99,47% pada tanaman berumur 80 hari untuk lokasi SL-PHT dan 98,07% pada tanaman berumur 80 hari untuk lokasi non SL-PHT. Residu insektisida yang diternukan pada contoh umbi kentang berbahan aktif kartaphidroklorida, karbosulfan, dimehipo dan ,λ" sihalotrin dengan kandungan di bawah BMR. Pola penggunaan pestisida relatif sama untuk lokasi SL-PHT dan non SL-PHT dalam jenis, jurnlah, frekuensi penyemprotan dalam Mengendalikan hama dan penyakit tanaman kentang. Produksi kentang di lokasi S L-PHT Sebesar 15,72 ton / ha dengan RC ratio 2,32 dan di lokasi non SL-PHT sebesar 13 .91 ton / ha dengan RC ratio 1,78. Kata kunci : Liriomyza spp., residu, dan RC ratio
VARIABILITAS TINGKAT KETERSERAPAN FE BERAS ANTAR VARIETAS PADI VARIABILITY IN BIOAVAILABILITY OF FE IN RICE VARIETIES , Suwarto; , Nasrullah; , Taryono; Sulistyaningsi, Endang
Pembangunan Pedesaan Vol 9, No 1 (2009)
Publisher : Pembangunan Pedesaan

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Many papers have reported that Fe deficiency caused anemia is a worldwide problem. It has also been reported that most of the Fe intake of people came from cereals. To improve Fe nutrition of rice consumers, grain Fe concentration must not only be increased, but it must also be in a form that available to consumers of rice. This study set out to determine the bioavailability of Fe in rice of 10 varieties. Results indicated that bioavailability of rice grain Fe varied among different varieties. Three varieties (Maligaya Sp., Bengawan Solo, and Gilirang) had a higher Fe bioavailability than the standard of IR 64. There was no correlation between bioavailability of Fe and grain Fe concentration in rice grain.
Pengaruh Waktu Tanam dan Genotipe Padi Gogo terhadap Hasil D.H., Totok A.; Suwarto, Suwarto; Riyanto, A.; Susanti, D.; Kantun, I. N.; Suwarno, Suwarno
Jurnal Penelitian Pertanian Tanaman Pangan Vol 30, No 1 (2011): April 2011
Publisher : Pusat Penelitian dan Pengembangan Tanaman Pangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (85.843 KB) | DOI: 10.21082/jpptp.v30n1.2011.p%p

Abstract

Upland rice plays an important role in supporting food security for community in dryland areas. Genotype × environment interaction is an important factor to be considered in the development of upland rice in Indonesia, because they affect rice yield stability. Genotype × environment interaction and yield stability of rice genotypes are important information to be considered for the development of upland rice. The study was conducted over two years on a dry land area of Banjarnegara, Central Java, using 10 genotypes of upland rice (UNRAM 1E, 4E UNRAM, UNRAM 17E, 9E UNRAM, Unsoed G10, G19 Unsoed, Unsoed G39, G136 Unsoed, B12644F-MR-2, B12498C-MR-1) and two varieties (Situ Patenggang and Way Rarem) as control. Data were analyzed using analysis of variance. Results showed that planting time affect yield and yield components of the upland rice tested. Effect of the genotype x planting time interaction was shown on plant height, flowering date, harvest age, and crop yields. The upland rice genotypes that showed a stable high yields over years of planting were UNRAM 4, Unsoed G10, G136 Unsoed, B12644F-MR-2, and Situ Patenggang and Way Rarem.
Efisiensi Penggunaan Cahaya Matahari oleh Tebu pada Berbagai Tingkat Pemupukan Nitrogen dan Fosfor Wawan Pembengo; , Handoko; , Suwarto
Indonesian Journal of Agronomy Vol. 40 No. 3 (2012): 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 (389.886 KB) | DOI: 10.24831/jai.v40i3.6828

Abstract

Light use efficiency is a crucial parameter in plant growth associated with accumulation of energy interception. Nitrogen and phosphorus deficiency reduce leaf area index (LAI) and specific leaf nitrogen and phosphorus (SLN and SLP) content and reduce efficiency of light intercepted by plant canopy structure. This research was conducted in Kebun Bunga Mayang PTPN VII, North Lampung Regency, Lampung Province (04050’S, 104052’E, 38 m above sea level) from July 2008 to September 2009. Treatments were distributed in the field under a randomized complete block design factorial with three replications. The increase in nitrogen fertilizer (N) improved sugarcane light use efficiency. The light use efficiency of the sugarcane plants fertilized with 225 kg N ha-1 was 2.29 g MJ-1 at maximum stem phase. On the contrary, the increasing of phosphor (P) fertilizer did not affect light use efficiency but increased stem dry matter at maximum seedling phase or about 3 month after planting (3 MAP), at maximum stem phase (9 MAP), and at harvest (11 MAP); total dry matter at seedling phase (5 MAP) and at maximum stem phase (9 MAP). Nitrogen did not interact with P in affecting light use efficiency. Keywords: fertilization N and P, interception radiation, light use efficiency, sugarcane
Dynamics of Soil Moisture under Different Water Levels and Various Dosages of Organic Fertilizer Subandi Nur; Suwarto Suwarto; Saparso Saparso; Heru Adi Djatmiko
JOURNAL OF TROPICAL SOILS Vol 25, No 3: September 2020
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2020.v25i3.157-164

Abstract

The study aimed to determine the dynamics of soil moisture in various standing water levels and dosages of organic fertilizer. The experiment was arranged in a Completely Randomized Block Design (CRBD) with a 3 × 3 factorial treatment in 3 replicates. The first factor was 3 different water levels, namely 10 cm (T1), 20 cm (T2), and 30 cm (T3). The second factor was 3 levels of dosages of organic fertilizer, namely 0 g pot-1(P1), 35 g pot-1 (P2), and 70 g pot-1 (P3). The highest of soil moisture was obtained in the 10 cm water levels and 70 g organic fertilizer (T1P3) and the lowest in the 30 cm water levels and without organic fertilizer (T3P1). The highest infiltration rate was obtained in the 30 cm water levels and 70 g pot-1 organic fertilizer (T3P3), the 30 cm water levels and 35 g pot-1 organic fertilizer (T3P2), the 20 cm water levels and 70 g pot-1 organic fertilizer (T2P3), and the lowest in the combination of the 10 cm water levels and without organic fertilizer (T1P1). The highest capillary rate was obtained in the combination of the 30 cm water levels and 70 g organic fertilizer (T3P3) and the lowest in the combination of the 30 cm water levels and without organic fertilizer (T3P1).
Growth and Results of Three Varieties Celery (Apium graveolens L) With Addition of Alternative Nutrition in the Hydroponic Floating System Eva Isnainun; Etik Wukir Tini; suwarto suwarto
AGROLAND The Agricultural Sciences Journal (e-Journal) Vol 8 No 2 (2021): December
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/agroland.v0i0.690

Abstract

The objectives of the research were to determine the best varieties of celery and nutrient concentration with the addition of azolla extract for growth and yield of celery, and obtaining the best combination of varieties and nutrient concentrations for growth and yield of celery in the hydroponic floating system. The research was conducted at Screen house number A. 24 and the Laboratory of Agronomy and Horticulture, Faculty of Agriculture, Jenderal Soedirman University and was conducted from January 2020 to April 2020. The research was arranged in a two-factorial randomized block design. The first factors were varieties treatment (V): V1 (Summer variety), V2 (Amigo variety), V3 (Tall Utah variety). The second factors were treatment of nutrient concentration (K): K1 (AB mix solution 900 ppm + azolla extract 60 ml / l), K2 (AB mix solution 1100 ppm + azolla extract 60 ml / l), K3 (AB mix solution 1300 ppm + azolla extract 60 ml / l), K4 (AB mix solution 1500 ppm without azolla extract). The research variables observed were plant height, number of leaves, amount of chlorophyll, fresh root weight, dry root weight, fresh shoot weight, dry shoot weight, root length and number of stalks. The results showed that the Tall Utah variety and the nutrient concentration of 1300 ppm + 60 ml / l azolla extract was the best treatment for growth and yield of celery. The interaction between the two treatments of Tall Utah varieties and nutrient concentrations of 1300 ppm + azolla extract 60ml / l showed the best treatment on the variable number of leaves 39.16, total chlorophyll 49.91, fresh root weight 7.57 g, dry root weight 0, 73 g, dry shoot weight 2.11 g, root length 9.11 cm, and the number of petioles 8.94 pieces.