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All Journal Jurnal Lahan Suboptimal Buletin Palawija Jurnal Ilmu-Ilmu Pertanian Indonesia Journal of Degraded and Mining Lands Management AGRIVITA, Journal of Agricultural Science Fakultas Pertanian Jurnal Penelitian Pertanian Terapan Caraka Tani: Journal of Sustainable Agriculture JAST : Jurnal Aplikasi Sains dan Teknologi Seminar Nasional Lahan Suboptimal BUANA SAINS Buletin Palawija PIPER Journal of English Language and Education JAPI: Jurnal Akses Pengabdian Indonesia
Sri Umi Lestari
Universitas Tribhuwana Tunggadewi
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Library & Information Science Mathematics Nursing Physics Public Health Other

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Crossing Among Sixteen Sweet Potato Parents for Establishing Base Populations Breeding Sri Umi Lestari; Ricky Indri Hapsari; Nur Basuki
AGRIVITA, Journal of Agricultural Science Vol 41, No 2 (2019)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v41i2.1485

Abstract

The base - population of the controlled cross breeding is one of the important factors to develop a new improved cultivar. Since the incompatible nature of sweet potato remains a barrier for genetic improvement, therefore it requires a lot of crossed pairs. This study aimed to determine the level of incompatibility among crossing line between high yielding and micronutrient content cultivars. The field experiment conducted at Brawijaya University Research Station, Jatikerto-Malang, during February to August 2015. The North Carolina Design II was applied to sixty pairs controlled cross breeding and their sixty reciprocal pairs of six cultivars for micronutrient content enrichment with ten high yielding cultivars. The observations were made to the cross flowers number, capsules, fruit sets, and seeds number. The level of incompatibility between crossed pairs was determined by the level of fruit set. The result showed that most pairs were compatible (fruit set > 20%) and only few were incompatible (fruit set < 10%). Among six parents with micronutrient content enrichment, two of them, have a high compatibility as as female parents, to all the high yielding cultivars, i.e. BIS OP-61 and Cangkuang. Positioning as a female parent can improve the effectiveness of its selection scheme.
DUAL-PURPOSE ASSESSMENT FOR SWEETPOTATO Sri Umi Lestari; Ricky Indri Hapsari
AGRIVITA, Journal of Agricultural Science Vol 37, No 2 (2015): JUNE
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v37i2.493

Abstract

This study aimed to classify the types of sweet potato based on the ratio of total dry matter of roots to vine (R/V) in order to make the option available in integrating the crop-livestock systems. Seventeen sweet potato cultivars were planted in Randomized Complete Block Design with three replications applied at two locations, Malang and Blitar. Each cultivar planted in plot measures 2.5 m x 5 m in Malang and 3.0 m x 5 m in Blitar, and each consists of four rows with a spacing of 25 cm in rows. All cultivars gave a dose of 250 kg NPK fertilizer (15-15-15)/ha twice, one-third of dose given at planting and the remainder in a month after planting. Plants were harvested at four months after planting. Fresh weight and dry weight of storage root, fresh weight and dry weight of vines, harvest index, and the ratio R/V are determined.  There was different performance of 17 cultivars planted at two locations. Cultivars planted in Malang were classified into four types, namely forage, which consists of three cultivars among 17 cultivars, low dual-purpose (3 cultivars), high dual-purpose (7 cultivars), and low root production (4 cultivars); while cultivars planted in Blitar turned into the forage type. Keywords: dual-purpose, root/vine ratio, sweet potato
KERAGAAN POPULASI FAMILI HALFSIB HASIL PERSILANGAN UBIJALAR UNTUK PENGKAYAAN MIKRONUTRIEN Sri Umi Lestari
Buletin Palawija Vol 15, No 2 (2017): Buletin Palawija Vol 15 No 2, 2017
Publisher : Balai Penelitian Tanaman Aneka Kacang dan Umbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bulpa.v15n2.2017.p78-86

Abstract

Hidden Hunger is a major health problem for the world populations, especially in developing countries. Sweet potato is one of the main staple crops to be enriched with micro nutrient content through biofortification program, to overcome the Hidden Hunger. The study aim was evaluated the offspring performance of the controlled crosses between the parent for the enrichment of micro nutrient content with other high yielding clones. A number of hybrid genotypes (297) scattered in 8 families of half sibs were evaluated by weight of storage root and vines, estimated of storage root and vines yields per hectare, and its micronutrient content (Fe and Zn). Augmented Randomized Block Design with 8 replicate blocks was applied for this trial. In each block is also planted parent clones as control cultivars. The results showed that cultivar test performance on all observed parameters was different to control cultivars, as well as among the cultivars test were also statistically different. This allows obtaining the selection of genotype based on storage root weight/plant and its micronutrient content. Among the 297 genotypes evaluated available of 140 genotypes had storage root yields ≥ 0.5 kg/plant and 6 of them had storage root weight of ≥ 1.5 kg/plant. Based on storage root weight and micro nutrient content selected 6 genotypes with the storage root weight range between 0.598 - 1.631 kg/plant and Fe and Zn content respectively ranged from 95 to 618 mg Fe/kg and 10-12 mg Zn/kg based on dry weight basis.
Analisis Keragaman Genetik dan Kekerabatan Genotipe Ubi Jalar Berdasarkan Karakter Morfologi Sri Umi Lestari; Reza Prakoso Dwi Julianto
Buletin Palawija Vol 18, No 2 (2020): Buletin Palawija Vol 18 No 2, 2020
Publisher : Balai Penelitian Tanaman Aneka Kacang dan Umbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bulpa.v18n2.2020.p113-122

Abstract

Ubi jalar (Ipomoea batatas (L.) Lam.) merupakan komoditas sumber karbohidrat setelah padi, jagung dan ubi kayu. Saat ini produktivitas ubi jalar nasional hanya sebesar 13,51 t/ha, lebih rendah dibandingkan  hasil penelitian yang mencapai 35 t/ha. Penelitian ini bertujuan untuk mengevaluasi karakter morfologi beberapa genotipe ubi jalar dan menganalisis jarak genetik genotipe-genotipe berdasarkan karakter kuantitatif. Hasil analisis kekerabatan dari 13 genotipe ubi jalar berkelompok pada 2 klaster (A dan B). Kemiripan antargenotipe didasarkan pada jarak Euclidean; terdapat dua kelompok genotipe yang memiliki nilai kemiripan tertinggi yaitu Beta 2--22 dengan Jago-OP-28, dan Beta 2--12 dengan Beta 2--15. Sepuluh variabel pengamatan yang mempengaruhi keragaman 13 genotipe tereduksi ke dalam empat komponen utama dengan nilai keragaman kumulatif sebesar 91,1%. Hasil analisis biplot dari 10 variabel pengamatan dengan menghilangkan empat variabel yang mempunyai vektor pendek mampu meningkatkan keragaman dari 59,7% menjadi 92,1%.
EFISIENSI PEMASARAN KARET RAKYAT DI KECAMATAN DUSUN TENGAH KABUPATEN BARITO TIMUR Sujarwo Sujarwo; Sri Umi Lestari
BUANA SAINS Vol 7, No 1 (2007)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (161.619 KB) | DOI: 10.33366/bs.v7i1.113

Abstract

Objectives of this study were to elucidate efficiency level of rubber marketing at Dusun Tengah District, Barito Timur Regency. The study was conducted at. 60 farmers were randomly selected from three villages of Unsum, Lenggang and Puri, Dusun Tengah District. Samples of marketing agencies were selected based on non probability sampling method. Data analyses were analysis of profit function, and analysis of marketing, as well as descriptive analysis on market structure, performance and conduct to qualitatively measure marketing efficiency. Results of the study showed that there we two marketing channels in the study area, i.e. channel 1: Farmer –trader 1 –trader II (distributor) – rubber processing factory, and channel 2: Farmer –trader II (distributor)- rubber processing factory. Analysis of marketing margin indicated that price share received by farmers was 67,35%, whereas that received by trader I was 79,59%, and that received by trader II (distributor) was 100%. Marketing margin was not evenly distributed in between trader I and trader II (distributor) as trader II received the highest margin of 40,94%
PERAKITAN KLON UBIJALAR UNTUK HASIL PROTEIN TINGGI Sri Umi Lestari; Nur Basuki
BUANA SAINS Vol 7, No 1 (2007)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (220.077 KB) | DOI: 10.33366/bs.v7i1.120

Abstract

The research that was aimed to create a new variation on sweet potato population was conducted at 2003 and 2004. Crossing between two introduction clones (Beniazuma and BIS-214) as a parent of bearing tuber-protein content genes with five clones of tuber high yield potential, was obtained 1157 genotypes of new hybrid F1. The selection result found 168 new clones having minimum yield as 0.5 kg/plant or  20 ton/ha and 3% tuber protein content on dry weight basis. Among 168 clones there were 21 genotypes with protein yield range from 1.0-2.5 ton protein content/ha
The Pruning Effect on the Storage Root Yield and Starch Content of Sweet Potato Clones Planted at Dry Land Edyson Indawan; Sri Umi Lestari; Nurita Thiasari; Pramono Sasongko
Caraka Tani: Journal of Sustainable Agriculture Vol 35, No 2 (2020): October
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v35i2.34480

Abstract

Sweet potato is a dual-purpose crop, which could produce both food and feed. The vine pruning prior to storage root harvesting was intended to increase the quantity and quality of fresh forage for animal feed. This study aims to evaluate whether periodic pruning can affect the storage root yield and its starch content. This experiment employed split-plot design with two factors and three replications. The first factor as main plot was vine pruning which consisted of four distinct pruning times (four times, three times, twice and once). The second factor as sub-plot was cultivars which consisted of six dual-purpose cultivars and two controls. The storage root yields, vine yields, starch yields and the reduction in storage root yields were observed. The results showed that the vine pruning decreased the storage root yields, with small increases the vine yields. The percentage of the reduction in storage root yields were 4-58%, while the decrease vine yields are relatively inconsistent. The starch yield of the cultivars with one pruning time were in the range of 2.34-6.67 ton ha-1. On the contrary, the three times pruning or more since 80 days after transplanted can reduce the starch yields for more than 50%. The slight increase in vines yield due to pruning was followed by the decrease in storage root yields and starch content of the sweet potato.
USAHA PEMBERDAYAAN EKONOMI MASYARAKAT MISKIN YANG MEMILIKI TANGGUNGAN ANAK PENYANDANG CACAT MELALUI KEGIATAN IbM Eri Yusnita Arvianti; Sri Umi Lestari; Macaria Theresia Laiyan
JAST : Jurnal Aplikasi Sains dan Teknologi Vol 1, No 1 (2017): JAST
Publisher : Universitas Tribhuwana Tunggadewi Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/jast.v1i1.464

Abstract

Fenomena kemiskinan di kalangan masyarakat  yang memiliki tanggungan anak cacat merupakan masalah yang perlu segera diatasi. Banyak sekali anak penyandang cacat yang tidak bisa mengenyam bangku pendidikan karena kondisi ekonomi orang tua mereka yang tidak mampu. Kondisi seperti ini timbul karena masyarakat miskin tidak memiliki akses, kemampuan finansial dan ketrampilan yang cukup dalam mengatasi masalah tersebut.Keluarga penyandang cacat  Ridho Eko Atmojo maupun Leni Nurhayati merupakan dua contoh keluarga yang memerlukan bimbingan dan bantuan modal. Rido Eko memiliki kelainan bisu dan tuli, sedangkan Leni memiliki kelainan epilepsy dan retardasi mental ringan. Melalui kegiatan Ipteks bagi masyarakat (IbM) berupa usaha jualan sayur keliling dan beternak ayam kampung ini diharapkan terjadi peningkatan produktivitas dan kemandirian keluarga mitra baik secara ekonomi mapun sosial, juga pemberian rehabilitasi medis si penyandang cacat agar mampu berperan dalam lingkungan sosialnya .Hasilnya  setelah mendapatkan bantuan dari program IbM Keluarga Agus Susanto (Ridho Eko Atmojo) dan Keluarga Setiono (Leni Nurhayati) semakin meningkat produktifitasnya sehingga  mampu memperbaiki taraf kehidupan ekonomi dan sosialnya menuju kemandirian ekonomi keluarga. Hasil analisis kelayakan usaha untuk jualan sayur keliling adalah sebesar 1.47 dan usaha beternak ayam sebesar 1.16 sehingga dua kegiatan usaha tersebut layak untuk diusahakan. Pemberian rehab medis memberikan efek positip terhadap tingkat kesehatan kedua anak mitra.Keyword : Miskin, Anak Cacat, Pemberdayaan.
PENYEDIAAN PAKAN SILASE DARI TANAMAN UBIJALAR DALAM MENUNJANG SISTEM PERTANIAN BERKELANJUTAN Reza Prakoso Dwi Julianto; Edyson Indawan; Sri Umi Lestari; Poppy Indri Hastuti
Jurnal Penelitian Pertanian Terapan Vol 22 No 1 (2022)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v22i1.2120

Abstract

The study aims to evaluate the response sweet potato clones by pruning to tuber production and silage making experiments. In the field using Split Plot design with 3 replays. Sweet potato clones are placed as plots and pruning periods as the main plot. V₁: Kuningan Putih, V₂: Beta-2, V₃: Kuningan Merah, V₄: BIS-OP-61, V₅: 73-OP-5, V₆: BIS-OP-61-♀-29, V₇: BIS-OP-61-OP-22. The clone sweet potato consists of trimming period ages 90 dap, 120 dap and 150 dap. The result of trimming stroge is then preserved in the form of silage. Silage making as follows: each clons was cut to a size of 3-5 cm, then used to lower the moisture content. Storage is cut, weighed and added tubers according to treatment is: S1= 100% storage, S2 = 90% storage + 10% tubers, S3= 80% storage + 20% tubers, S₄ = 70% storage + 30% tubers. The nutritional value composition of sweet potato silage has of DM 7.07-23.33%, OM 78.04-91.45%, ash 8.57-21.96%, CP 6.90-16.14%,and CF 17.87-57.57% based on dry materials. The value of sweet potato silage of DMD 42.36-63.71%, OMD 38.85-63.64% and TDN 33.24-56.54%.
PENINGKATAN KEMANDIRIAN PETANI MELALUI PRODUKSI BENIH JAGUNG MANDIRI Sri Umi Lestari; Reza Prakoso Dwi Julianto; Astri Sumiati
JAPI (Jurnal Akses Pengabdian Indonesia) Vol 2, No 1 (2017)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (278.383 KB) | DOI: 10.33366/japi.v2i1.594

Abstract

Sektor pertanian merupakan sektor yang strategis dan berperan penting dalam perekonomian nasional dan kelangsungan hidup masyarakat. Selama ini petani dihadapkan oleh permasalahan dalam penyediaan benih yang bermutu. Benih jagung di pasaran pada saat ini harganya semakin meningkat, sehingga menyebabkan kesulitan bagi petani untuk melakukan kegiatan pertaniannya. Perlu adanya suatu upaya untuk membantu permasalahan tersebut salah satunya melalui kegiatan pemuliaan tanaman dengan tujuan untuk perakitan varietas unggul baru terutama untuk perakitan benih jagung. Hasil dari kegiatan ini adalah Pengenalan dan pembelajaran kegiatan pemuliaan tanaman kepada petani diharapkan dapat membantu petani menyelesaikan masalah terutama dalam penyediaan benih unggul.; Kegiatan pemuliaan tanaman dilakukan melalui beberapa tahap pelaksanaan antara lain pemilihan induk jantan dan betina, isolasi tanaman, dan persilangan tanaman. Persilangan tanaman dilakukan dengan cara konvensional yaitu dengan cara menjatuhkan serbuk sari pada bunga jantan kepada putik bunga betina.; Penanaman yang dilakukan dengan tujuan untuk kegiatan pemuliaan tanaman dilakukan dengan menggunakan jarak tanam yang lebih besar yaitu 100 x 30 cm, satu benih satu lubang.; Penanaman varietas yang sama di tanam dalam baris yang sama sehingga mempermudah dalam melakukan persilangan dan melakukan identifikasi tanaman
Co-Authors Amir Hamzah Astri Sumiati Edyson Indawan Eri Yusnita Arvianti Griselda, Merry Hidayat, Fariz Nur I Gusti Bagus Wiksuana Macaria Theresia Laiyan Mangardi, Mangardi Nur Basuki Nur Basuki Nurhasan Nurhasan, Nurhasan Nurita Thiasari Nurita Thiasari Nurita Thiasari Poppy Indri Hastuti Pramono Sasongko Priyadarshini, Rossyda Reza Prakoso Dwi Julianto Reza Prakoso Dwi Julianto Reza Prakoso Dwi Julianto Ricky Indri Hapsari Sujarwo Sujarwo Sutoyo - Sutoyo Sutoyo Syarifuddin Wahyu Fikrinda