scholarly journals CRESCIMENTO E FITOMASSA DE BATATA-DOCE IRRIGADA COM ÁGUA RESIDUÁRIA TRATADA

Irriga ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 97-109
Author(s):  
Raucha Carolina de Oliveira ◽  
Patrícia Ferreira da Silva ◽  
Rigoberto Moreira de Matos ◽  
José Dantas Neto ◽  
Luciano Marcelo Fallé Saboya ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Block Design ◽  
Treated Wastewater ◽  
Sweet Potatoes ◽  
Agricultural Engineering ◽  
Randomized Block Design ◽  
Number Of Leaves ◽  
E Mail ◽  
Irrigation Effluent

CRESCIMENTO E FITOMASSA DE BATATA-DOCE IRRIGADA COM ÁGUA RESIDUÁRIA TRATADA     RAUCHA CAROLINA DE OLIVEIRA1; PATRÍCIA FERREIRA DA SILVA2; RIGOBERTO MOREIRA DE MATOS3; JOSÉ DANTAS NETO4; LUCIANO MARCELO FALLÉ SABOYA5 E MARIA SALLYDELÂNDIA SOBRAL DE FARIAS6   1Mestranda em Engenharia Agrícola, Rua Aprígio Veloso, 882 - Universitário, Campina Grande - PB, Brasil, 58428-830, e-mail: [email protected] 2Pós- doutoranda em Engenharia e Gestão dos Recursos Naturais, Rua Aprígio Veloso, 882 - Universitário, Campina Grande - PB, Brasil, 58428-830, e-mail: [email protected] 3Doutor em Engenharia Agrícola, Rua Aprígio Veloso, 882 - Universitário, Campina Grande - PB, Brasil, 58428-830, e-mail: [email protected]  4Professor Doutor, Universidade Federal de Campina Grande, Unidade Acadêmica de Engenharia Agrícola,  Rua Aprígio Veloso, 882 - Universitário, Campina Grande - PB, Brasil, 58428-830, e-mail: [email protected] 5Professor Doutor, Universidade Federal de Campina Grande, Unidade Acadêmica de Engenharia Agrícola,  Rua Aprígio Veloso, 882 - Universitário, Campina Grande - PB, Brasil, 58428-830, e-mail: [email protected] 6Professora Doutora, Universidade Federal de Campina Grande, Unidade Acadêmica de Engenharia Agrícola,  Rua Aprígio Veloso, 882 - Universitário, Campina Grande - PB, Brasil, 58428-830, e-mail: [email protected]     1 RESUMO   A utilização de água residuária tratada na irrigação de culturas agrícolas é apontada como uma alternativa para atenuar o problema da escassez hídrica. Assim, objetivou-se com o presente trabalho avaliar o crescimento e fitomassa de batata-doce irrigada com água residuária tratada. A pesquisa foi desenvolvida em ambiente protegido pertencente à unidade acadêmica de engenharia agrícola da Universidade Federal de Campina Grande, em delineamento de blocos casualizados em arranjo fatorial 3x2, com cinco repetições. Os fatores de variação consistiram em três qualidades de água (T1 = água de cisterna; T2 = água tratada por wetland e T3 = água tratada por UASB+wetland), e duas cultivares de batata-doce (Campina e Granfina). Avaliou-se ao final do ciclo de cultivo o número de folhas (NF), número de ramas (NR), área foliar (AF), diâmetro do caule (DC), fitomassa fresca de folhas (FFF), fitomassa fresca de ramas (FFR), fitomassa seca de folhas (FSF), fitomassa seca de ramas (FSR). Os resultados obtidos demonstram que as variáveis (NF), (NR), (AF), (FFF), (FSF) e (FSR) foram influenciadas de forma significativa pelas cultivares. A água residuária tratada na irrigação de batata-doce pode ser utilizada sem que haja perdas das características de crescimento e fitomassa.   Palavras-Chave: Ipomoea batatas L., reúso, gotejamento, efluente.     OLIVEIRA, R. C.; SILVA, P. F.; MATOS, R. M.; DANTAS NETO, J.; SABOYA; L. M. F.; FARIAS, M. S. S. GROWTH AND PHYTOMASS OF SWEET POTATO IRRIGATED WITH TREATED WASTEWATER   2 ABSTRACT   The use of treated wastewater in the irrigation of agricultural crops is indicated as an alternative to mitigate the problem of water scarcity. Thus, this study aimed to evaluate the growth and phytomass of sweet potatoes irrigated with treated wastewater. The study was conducted in a greenhouse belonging to the academic unit of agricultural engineering at the Federal University of Campina Grande, in a randomized block design and 3x2 factorial scheme, with five replications. The factors consisted of three water qualities (T1 = water from a cistern; T2 = water treated by wetland and T3 = water treated by UASB + wetland), and two sweet potato cultivars (Campina and Granfina). At the end of the cultivation cycle, the number of leaves (NF), number of branches (NR), leaf area (AF), stem diameter (DC), fresh leaf phytomass (FFF), fresh branch phytomass (FFR), dry leaf phytomass (FSF) and dry branch phytomass (FSR) were evaluated. The results obtained show that the variables (NF), (NR), (AF), (FFF), (FSF) and (FSR) were significantly influenced by the cultivars. Wastewater treated for irrigation of sweet potatoes can be used without loss of growth and phytomass characteristics.   Keywords: Ipomoea batatas L., reuse, drip irrigation, effluent.

scholarly journals PENGARUH PENAMBAHAN TOP SOIL INCEPTISOL DAN KOMPOS PADA TAILING AMALGAMASI TERHADAP PANJANG SULUR, DIAMETER SULUR DAN JUMLAH CABANG TANAMAN UBI JALAR (Ipomoea batatas L.)

2020 ◽  
Vol 8 (1) ◽  
pp. 161-168
Author(s):  
Indra Herliana ◽  
Pujawati Suryatmana ◽  
Reginawanti Hindersah ◽  
Rhazista Noviardi
Keyword(s):  
Organic Matter ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Block Design ◽  
Sweet Potatoes ◽  
Vegetative Phase ◽  
Randomized Block Design ◽  
Top Soil ◽  
Two Factors ◽  
Number Of Branches

Tailings are waste generated from the processing of gold ore. The tailings in Kertajaya Village, Sukabumi are generally dumped into a pond or garden which is then used by the community to grow crops. The characteristics of the tailings, which contain low organic matter, microorganism activity, CEC and essential nutrients, make it necessary to improve their condition. This study aimed to determine the effect of adding top soil and compost to the tailings on the growth of sweet potatoes in the vegetative phase. This experiment used a factorial randomized block design with two factors, namely a top soil-tailing ratio of 3 levels (70: 30% w/w; 50: 50% w/w; and 30: 70% w/w) and a compost dose of 4. level (without compost (control); 10 t ha-1; 20 t ha-1; and 30 t ha-1) with 3 replications. The results showed that the combination of the addition of top soil ratios and the dose of compost to the tailings had no effect on the addition of tendrils length, tendril diameter and number of sweet potato branches during the vegetative phase. The addition of 70% top soil independently on the tailings had an effect on the highest increase in tendril length, tendril diameter and number of branches of sweet potato. Meanwhile, the application of compost dosage of 30 t ha-1 had the highest effect on the number of branches of sweet potato.

scholarly journals Seleção de genótipos de batata-doce quanto à eficiência ao uso do fósforo em solos da região de cerrado

2013 ◽  
Vol 4 (4) ◽  
pp. 356-364
Author(s):  
Luziano Lopes Da Silva ◽  
Márcio Antônio Da Silveira ◽  
Rodrigo Ribeiro Fidelis ◽  
Rodrigo de Castro Tavares ◽  
Valéria Gomes Momenté ◽  
...  
Keyword(s):  
Experimental Design ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Block Design ◽  
Tuberous Root ◽  
Phosphorus Fertilization ◽  
Germplasm Bank ◽  
Randomized Block Design ◽  
The Family ◽  
Selection Of

The sweet potato (Ipomoea batatas (l.) Lam.) Lam) is a plant that produces tuberous root belonging to the family convolvulácea explored in practically all states of Brazil. The objective of this work was to select genotypes of the sweet potato as the efficiency of phosphorus use in cerrado soils with high and low availability of this nutrient. Were evaluated nine genotypes of sweet potato coming from the germplasm bank from the Federal University of the Tocantins, Brazil. The experimental design was in randomized block design with three replications being nine genotypes grown in two environments with low and high phosphorus availability, using doses of phosphorus fertilization from 20 and 120 kg ha-1 P2O5, applied at planting. To select genotypes suitable for environments proposed was used methodology for selection of the efficient use and response to phosphorus fertilization (efficiency and response). Genotype Amanda was classified as efficient and responsive, Barbara, Julia, Marcela and Carolina Vitoria as efficient, but not responsive and Livia, Duda, Ana Clara and Beatriz were classified as non-efficient, responsive but the absorption and utilization of phosphorus.

scholarly journals REDUCING CHEMICAL FERTILIZER IN SWEET POTATO CULTIVATION BY USING MIXED BIOFERTILIZER

2021 ◽  
Vol 52 (4) ◽  
pp. 1031-1038
Author(s):  
Hindersah & et al.
Keyword(s):  
Sweet Potato ◽  
Block Design ◽  
Chemical Fertilizer ◽  
Nutrient Cycle ◽  
Sweet Potatoes ◽  
Available Nitrogen ◽  
Potato Varieties ◽  
Combined Application ◽  
Randomized Block Design ◽  
Phosphate Solubilizing

Biofertilizer enable to improve nutrient cycle in soil and induce plant growth and production, but sweet potatoes farmers in Indonesia are still use only chemical fertilizer as a source of plant nutrient. The objectives of this experiment were to evaluate the effect of different doses of consortium biofertilizer to reduce chemical fertilizer dose; and maintain yield and sweetness of two sweet potato varieties. The experimental design was completely randomized block design which tested six combinations of different chemical fertilizer and biofertilizer doses. Analysis of variance was performed to determine any significant differences between the means of treatments. The results showed that the response of both sweet potatoes varieties on combined application of chemical and bio fertilizer was differ. All treatments did not change tuber number and weight of sweet potato var. Awachy-1 but increased those of var. Rancing. Application of diazotrophic bacteria (Azotobacter, Azospirillum and Acinetobacter) mixed with phosphate solubilizing microbes (Pseudomonas and Penicillium) with reduced fertilizer doses up to 75% did not alter soil available nitrogen and phosphorous. Despite different fertilizer rates, tubers number of both sweet potato varieties in individual plot was similar. Yield did not change due to reduction of fertilizer dose up to 75% when biofertilizer was applied. However, yield was potentially decreased when chemical fertilizer was only 50%. All fertilizer treatments did not change the sweetness of tuber which indicated by constant brix. Research suggested that biofertilizer might substitute 25% of chemical fertilizer to obtain the same yield and quality of tuber, and maintain the availability soil nitrogen and phosphorous. 

scholarly journals Productivity and quality of sweet potato roots propagated by mini-cuttings with different trays and seedling ages

2021 ◽  
Vol 39 (2) ◽  
pp. 140-145
Author(s):  
Antonio Ismael Inácio Cardoso ◽  
Maurício D Nasser ◽  
Pâmela G Nakada-Freitas ◽  
Rogério L Vieites ◽  
Bruno NM Martins ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Block Design ◽  
Titratable Acidity ◽  
Dry Weight ◽  
Root Production ◽  
Total Sugars ◽  
Randomized Block Design ◽  
Different Types ◽  
Number Of Leaves

ABSTRACT The use of mini-cuttings is an option for obtaining sweet potato propagules of excellent quality. The objective of this research was to evaluate the production and quality of sweet potato roots propagated by mini-cuttings in different types of trays and ages of seedlings. Six treatments, resulting from the factorial 2x3, were evaluated: two types of trays (162 and 200 cells, with 31 and 18 mL of substrate per cell, respectively) and three ages of seedlings (39, 46 and 53 days after placement of mini-cuttings in trays), in a randomized block design, with five replications. Seedlings characteristics, production and quality of roots were evaluated. Higher number and dry weight of leaves per seedling were observed in the tray with 162 cells than in trays with 200 cells. The younger seedlings (39 days) had a lower number of leaves, dry weight of leaves, stem, roots ant total (leaves + stem + roots) than seedlings of other ages. There was no difference in root production depending on the type of tray, regardless of the age of the seedlings. For the 162-cell tray, the age of the seedlings did not affect the production of roots. On the other hand, for the 200-cell tray, higher roots production was observed on seedlings 39 days age compared to seedlings with 53 days. No differences were observed among the roots of different treatments for titratable acidity, and levels of sucrose, reducing sugars ant total sugars. It is recommended to avoid old seedlings, that is, it is recommended to use seedlings with a maximum of 43 days after planting of mini-cuttings for trays with 200 cells, while for trays with 162 cells no difference in root production was observed with the different ages of the seedlings.

scholarly journals Teknik Penggunaan Ajir pada Beberapa Varietas Ubi Jalar (Ipomoea batatas L.) di Dataran Tinggi Papua

2020 ◽  
Vol 16 (1) ◽  
pp. 77-87
Author(s):  
Alberth Soplanit ◽  
Merlin K Rumbarar ◽  
Siska Tirajoh ◽  
Nur E Suminarti
Keyword(s):  
Solar Radiation ◽  
Sweet Potato ◽  
Potato Variety ◽  
Ipomoea Batatas ◽  
High Efficiency ◽  
Block Design ◽  
Dry Weight ◽  
Radiation Energy ◽  
Randomized Block Design ◽  
Environment Experiment

This study aimed to obtain high efficiency in the use of solar radiation energy by combining varieties and stake angle (against horizontal) in sweet potato cultivation in the Papua highlands. The experiment was conducted on entisol soil type at 1560 m above sea level from April to September 2016. The environment experiment was arranged in a factorial Randomized Block Design with three replications. Factor A (variety) consisted of three varieties, i.e. Siate (local), Papua Sollosa, and Cangkuang; factor B (stake angle) consisted of four angles i.e. without stakes, 45°, 60°, and 90°. Specific Leaf Area decreased following an increase in stake angle levels for all varieties. The experiment reveals that Cangkuang with a 90° stake angle was higher on tuber dry weight (248.7 g per plant). The highest tuber yields were achieved by Cangkuang variety at 90° and 60° stakes angle with production 31.53 ton per ha and 28.86 ton per ha, respectively. Under conditions of abiotic stress due to the high level of cloud shade in the Papua highlands, it is recommended to use Cangkuang sweet potato variety or varieties with wide leaves, combined with the use of stakes at 90° and 60° angles. Keywords: Stake, solar radiation energy, sweet potato variety, Papua highland   ABSTRAK Penelitian ini bertujuan untuk mendapatkan efisiensi penggunaan energi radiasi matahari yang tinggi dengan mengkombinasikan varietas dan kemiringan (sudut terhadap horizontal) ajir pada budidaya tanaman ubi jalar di dataran tinggi Papua. Penelitian berlangsung pada tanah entisol, ketinggian 1560 m di atas permukaan laut dari bulan April - September 2016. Rancangan lingkungan adalah faktorial yang disusun dalam Rancangan Acak Kelompok dengan tiga ulangan. Faktor A (varietas) terdiri dari tiga varietas, yakni Siate (lokal), Papua Sollosa dan Cangkuang; faktor B (sudut kemiringan ajir) terdiri dari empat sudut yakni tanpa ajir, kemiringan ajir 45°, 60° dan 90°. Hasil penelitian menunjukkan bahwa luas daun spesifik (LDS) menurun mengikuti peningkatan kemiringan ajir pada semua varietas, dengan bobot kering umbi tertinggi 248,7 g per tanaman dihasilkan oleh varietas Cangkuang pada kemiringan ajir 90°. Hasil umbi tertinggi secara berturut-turut diperoleh oleh varietas Cangkuang pada kemiringan ajir 90° dan 60° masing-masing 31,53 ton per ha dan 28,86 ton per ha. Pada kondisi cekaman abiotik akibat tingkat keawanan tinggi di dataran tinggi Papua, dianjurkan untuk menanam varietas ubi jalar Cangkuang atau varietas dengan karakter berdaun lebar dikombinasikan dengan penggunaan ajir dengan kemiringan 90° dan 60°. Kata kunci: Ajir, energi radiasi matahari, varietas ubi jalar, dataran tinggi Papua

scholarly journals Daya hasil dan indeks panen ubi jalar unggul baru berdaging kuning (Ipomoea batatas L. (Lam.))

Jurnal Agro ◽  
10.15575/5704 ◽  
2020 ◽  
Vol 7 (1) ◽  
pp. 24-31
Author(s):  
Agung Karuniawan ◽  
Reviana Aulia ◽  
Haris MAulana ◽  
Debby Ustari ◽  
Neni Rostini
Keyword(s):  
Sweet Potato ◽  
Harvest Index ◽  
Ipomoea Batatas ◽  
Block Design ◽  
Total Weight ◽  
High Yield ◽  
Tuber Weight ◽  
Randomized Block Design ◽  
Superior Genotypes ◽  
Supporting Material

Estimasi daya hasil dan indeks panen dalam pemuliaan tanaman dibutuhkan untuk menyeleksi genotip ubi jalar. Genotip ubi jalar terseleksi yang berdaya hasil tinggi dapat digunakan sebagai bahan pendukung diversifikasi pangan. Tujuan dari penelitian ini adalah untuk memperoleh genotip ubi jalar berdaya hasil tinggi serta memiliki indeks panen tinggi. Penelitian dilaksanakan di Kebun Percobaan Fakultas Pertanian Universitas Padjadjaran Kabupaten Sumedang, Jawa Barat dari bulan November 2018 sampai April 2019. Penelitian ini menggunakan delapan genotip ubi jalar dan tiga genotip pembanding (Ac Putih, Kidal, dan Rancing). Metode yang digunakan adalah rancangan acak kelompok (RAK) dengan 11 perlakuan yang diulang sebanyak tiga kali. Hasil penelitian menunjukkan bahwa jumlah ubi per tanaman, jumlah ubi total, jumlah ubi ekonomis, bobot ubi per tanaman, bobot ubi total dan bobot ubi ekonomis menunjukan perbedaan yang nyata. Terdapat tujuh genotip yang berdaya hasil tinggi yaitu MZ 332, PR 91 (838), Awachy 4, KMDK, IND 38 (48), IND 8 (11), IND 264. Terdapat empat genotip ubi jalar unggul baru yang memiliki hasil indeks panen > 1 yaitu, Mz 332, PR 91(838), KMDK, dan IND 8(11).  ABSTRACT Estimation of yield and harvest index on sweet potato are needed to select new superior genotypes of sweet potato in the breeding program. Selected sweet potato genotypes with high yield can be used as supporting material for food diversification. The purpose of this study was to obtain new superior genotypes of yellow-fleshed sweet potato with high yield and high harvest index. The study was conducted in the Experimental field, Faculty of Agriculture, Universitas Padjadjaran, Sumedang Regency, West Java from November 2018 to April 2019. This study used eight sweet potato genotypes as treatment and three genotypes as check i.e. Ac Putih, Kidal and Rancing. The method used was randomized block design (RBD) with 11 treatments repeated three times. The results showed that the numbers of tuber per plant, numbers of tuber per plot, numbers of economic tuber, weight of tuber per plant, total weight per plot, weight of economic tubers were significantly different. There are seven genotypes with the high yield, i.e. MZ 332, PR 91 (838), Awachy 4, KMDK, IND 38 (48), IND 8 (11), IND 264. Four genotypes with harvest index > 1 i.e. Mz 332, PR 91 (838), KMDK, and IND 8 (11).

scholarly journals Effect of a Pseudomonas fluorescens-based Biofertilizer on Sweet Potato Yield Components

2021 ◽  
Vol 9 (2) ◽  
Author(s):  
Alexander Santana-Fernández ◽  
Yoel Beovides-García ◽  
Jaime Enrique Simó-González ◽  
María Cristina Pérez-Peñaranda ◽  
Jorge López-Torres ◽  
...  
Keyword(s):  
Field Experiment ◽  
Pseudomonas Fluorescens ◽  
Sweet Potato ◽  
Yield Components ◽  
Ipomoea Batatas ◽  
Block Design ◽  
Mineral Fertilizer ◽  
Potato Yield ◽  
The Other ◽  
Randomized Block Design

A field experiment was conducted to study the effect of a Pseudomonas fluorescens-based biofertilizer on sweet potato (Ipomoea batatas (L) Lam) yield. The application was by immersion of cuttings before sowing for 0, 5, 10 and 15 minutes with combination doses of 0, 50 and 100% of NPK mineral fertilizer in a randomized block design with three replications (12 treatments-combinations). During the harvest (130 days after planting), some measurements related to yield components were recorded on ten randomly selected plants from each plot. All treatments with Pseudomonas’ immersion showed a positive productive response. With 100% NPK and the immersion in the biofertilizer for 15 min showed the highest yield (56.09 tha-1), followed by the other treatments with 100% NPK and without statistical differences among them. The treatment with 50% NPK and the immersion in Pseudomonas for 15 min (49.58 tha-1) had no statistical differences with the control variant (100% NPK, 51.60 tha-1). Based on the results, it can be concluded that this biofertilizer could be an appropriate alternative to increase the sweet potato yield, saving the 50% of the current quantity of the recommended mineral fertilizer, through a more friendly environmental techniques to promote a sustainable, efficient and productive agriculture.

scholarly journals Pengaruh Substitusi Ubi Jalar Putih, Kuning dan Ungu Terhadap Karakteristik Fisikokimia dan Organoleptik Donat Isi

2021 ◽  
Vol 4 (2) ◽  
pp. 156-171
Author(s):  
Silfi Ernayanti ◽  
Sukardi Sukardi ◽  
Damat Damat
Keyword(s):  
Antioxidant Activity ◽  
Sweet Potato ◽  
Local Food ◽  
Block Design ◽  
Physicochemical Characteristics ◽  
Flavonoid Content ◽  
Sweet Potatoes ◽  
Organoleptic Characteristics ◽  
Randomized Block Design ◽  
Sweet Potato Flour

Abstract. Sweet potato is a local food that is easily found in Indonesia. Sweet potatoes contain vitamins, fiber, antioxidants and are also low in calories. Processing of sweet potato-based food products is also still limited, it is necessary to make an effort to increase the selling value of sweet potato. Making donuts substituted with sweet potatoes is one way to achieve diversification of sweet potato-based local food, in addition to reducing the use of wheat flour. The purpose of this study was to determine the effect of white, yellow and purple sweet potatoes and the effect of sweet potato pasta and flour on the physicochemical and organoleptic characteristics of stuffed donuts. This study used statistical analysis with a factorial randomized block design. Some of the treatments given in this study were types of white, yellow and purple sweet potatoes as well as substitution of 25% sweet potato pasta and 7.5% sweet potato flour. Based on the results of the study, it was known that the treatment of various types of sweet potato pasta and flour had no effect on water content, fat content, protein content, flavonoid content, aroma, texture and taste of stuffed donuts, but the treatment of white, yellow and purple sweet potatoes had an effect on antioxidant activity. and the color of the filling donut. The best treatment based on the physicochemical characteristics of antioxidant activity 74.9% and color organoleptic test 4.36, texture 4.28 and taste 4.52 obtained from yellow sweet potato paste treatment of 25% on donut dough. Keywords: donuts, effect, flour, paste, sweet potatoes.   Abstrak. Ubi jalar merupakan pangan lokal yang mudah ditemukan di Indonesia. Ubi jalar mengandung vitamin, serat, antioksidan dan juga rendah kalori. Pengolahan produk pangan berbasis ubi jalar juga masih terbatas, maka perlu dilakukan suatu upaya untuk menambah nilai jual dari ubi jalar. Pembuatan donat yang disubstitusi dengan ubi jalar merupakan salah satu cara mewujudkan diversifikasi pangan lokal berbasis ubi jalar, selain itu juga untuk mengurangi penggunaan tepung terigu. Tujuan penelitian ini untuk mengetahui pengaruh ubi jalar putih, kuning dan ungu serta pengaruh ubi jalar pasta dan tepung terhadap karakteristik fisikokimia dan organoleptik donat isi. Penelitian ini menggunakan analisis statistik dengan metode rancangan acak kelompok (RAK) faktorial. Beberapa perlakuan yang diberikan pada penelitian ini adalah jenis ubi jalar putih, kuning dan ungu serta substitusi ubi jalar pasta 25% dan ubi jalar tepung 7,5%. Berdasarkan hasil penelitian diketahui bahwa perlakuan berbagai jenis ubi jalar pasta dan tepung tidak berpengaruh terhadap kadar air, kadar lemak, kadar protein, kadar flavonoid, aroma, tekstur serta rasa donat isi, namun perlakuan jenis ubi jalar putih, kuning dan ungu berpengaruh terhadap aktivitas antioksidan dan warna donat isi. Perlakuan terbaik berdasarkan karakteristik fisikokimia aktivitas antioksidan 74.9% dan uji organoleptik warna 4.36, tekstur 4.28 dan rasa 4.52 diperoleh dari perlakuan pasta ubi jalar kuning sebesar 25% pada adonan donat. Kata kunci: donat, pasta, pengaruh, tepung, ubi jalar

scholarly journals Keragaman dan Potensi GenKeragaman dan Potensi Genetik Ubi Jalar Lokal Pada Kondisi Partial Submergenceetik Ubi Jalar Lokal Pada Kondisi Partial Submergence

2018 ◽  
Vol 14 (1) ◽  
pp. 1-7
Author(s):  
Helen Hetharie ◽  
Simon H T Raharjo ◽  
Anna Y Wattimena ◽  
Reny Tomasoa ◽  
La Dahamarudin
Keyword(s):  
Leaf Area ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Block Design ◽  
Stem Length ◽  
Tuber Weight ◽  
Area Index ◽  
Randomized Block Design ◽  
Vegetative Characters ◽  
Individual Tuber

Excess ground water above normal due to high rainfall affect the growth and yields of crops. The objectives of the study were to measure the genetic diversity of local sweet potato clones, to obtain characters of vegetative and yield characters that were  responsive against of partial submergence and sweet potato clones that had highest yield components. The method of research was a one-factor experiment involving 21 sweet potato clones using a Completely Randomized Block design with 3 replication. The partial submergence in this study mean that was the lower parts of the plants submerged when the plant were 2 and 3 months old. Data were analyzed with F test, genotype and phenotype variance, and DMRT test. The results show the sweet potato clones have a wide diversities of vegetative and yield characters. Vegetative characters that were positively responsive to partial submergence were the number of green leaves, leaf area per plant, leaf area index, and stem length. Yield characters that were positively responsive to partial submergence were tuber number and tuber length. Some of the clones with the highest production potential were shown through two of the three yields indicators (tubers number, individual tuber weight and tuber weight per plant), i.e. A13, AR15, B9, BSepa-U, BR5, H1 clones and Antin 2 variety.. Keywords: excess water, genotype variance, Ipomoea batatas, Maluku, yield character   ABSTRAK Kelebihan air tanah di atas normal akibat curah hujan yang tinggi mempengaruhi pertumbuhan dan produksi tanaman. Tujuan penelitian untuk mengukur keragaman genetik klon-klon ubi jalar lokal,  serta mendapatkan karakter vegetatif dan karakter hasil yang responsif positif terhadap partial submergence dan klon ubi jalar yang mempunyai komponen hasil tertinggi. Metode penelitian berupa percobaan satu faktor yaitu 21 klon ubi jalar menggunakan rancangan acak lengkap berblok dengan pengulangan tiga kali. Partial submergence  dalam penelitian ini yaitu  bagian bawah dari tanaman terendam air pada umur tanaman 2 dan 3 bulan. Analisis data dengan uji F, ragam genotip dan fenotip, dan uji DMRT. Hasil menunjukkan bahwa klon-klon ubi jalar mempunyai  keragaman luas pada semua karakter vegetatif dan produksi. Karakter vegetatif  yang responsif positif terhadap  partial submergence yaitu jumlah daun hijau, luas daun per tanaman, indeks luas daun dan panjang batang. Karakter produksi yang responsif positif terhadap  partial submergence yaitu jumlah umbi dan panjang umbi. Beberapa klon dengan potensi produksi melalui dua dari tiga indikator produksi (jumlah umbi, bobot per umbi dan bobot umbi segar per tanaman) tertinggi yaitu  A13, A15, B9,  BSepa-U, BR5, H1, dan varietas Antin 2. Kata kunci: Ipomoea batatas, karakter hasil, Maluku, ragam genotip, terendam

scholarly journals KARAKTERISTIK TEPUNG UBI JALAR (Ipomoea batatas L) TERMODIFIKASI SECARA FERMENTASI MENGGUNAKAN KOJI Bacillus subtilis DAN APLIKASINYA PADA PENGOLAHAN PANGAN

2019 ◽  
Vol 6 (1) ◽  
pp. 8
Author(s):  
Hervelly Velly
Keyword(s):  
Bacillus Subtilis ◽  
Sweet Potato ◽  
Wheat Flour ◽  
Ipomoea Batatas ◽  
Block Design ◽  
Cooking Loss ◽  
Potato Flour ◽  
Organoleptic Test ◽  
Randomized Block Design ◽  
Sweet Potato Flour

The aim of this study was obtained ratio of wheat flour and modified sweet potato flour that exactly on dried noodle, sweet bread and biscuits which can accepted by consumer.The experimental Randomized Block Design (RBD) was used in this study with one factor and two times replicated. The factor was recearched as between wheat flour and modified sweet potato flour with leves a0 (100% : 0%), a1 (0% : 100%), a2 (5% : 95%), a3 (10% : 90%), a4 (15% : 85%), a5 (20% : 80%), a6 (25% : 75%), a7 (30% : 70%) and a8 (35% : 65%).The result of study indicated that ratio between wheat flour and modified sweet potato flour was significantly effected on texture, flavour and taste of dried noodle, sweet bread and biscuits.The result of organoleptic test for dried noodle, sweet bread and biscuits obtained the best comparison between wheat flour and modified sweet potato flour of a8 (35% flour and 65% modified sweet potato flour. The results analysis of dried noodle was moisture 6,4039%, starch 29,6665 %, protein 6,2191% and cooking loss 18,7121%.The results analysis of sweet bread was mouisture 24,7525%, starch 32,9982% and protein 9,0174%. and the results anaysis of biscuits was mouisture 2,4390%, starch 4,8007% and protein 3,9785%.

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