PRODUKTIVITAS LAHAN, KOMPETISI, DAN TOLERANSI DARITIGA KLON UBIJALAR PADA SISTEM TUMPANG SARI DENGAN JAGUNG

ABSTRACT Paulus, J.M. 2005. Land Productivity, Competition, and Tolerance of Three Sweet Potato Clones Planted as Intercroping with Maize. Eugenia 11 (1): 1-7. A field experiment was conducted in Cikeumeuh Experimental Garden of Food Crop Biotechnology Research Station (BAUTBIO) Bogor to study Land Equivalent Ratio (LER), Competition Ratio (CR), and Stress Tolerance (TOL) of sweet potato and maize. The highest tuber yiled of sweet potato was 16,83 ton ha-[1] gained by CIP-2 at 100 cm planting distance of maize and the highest maize yiled was 4,50 ton ha-1 Cangkuang in intercropping with Cangkung clone. The LER, CR, and TOL, CIP-2 and SQ were suitable for intercrops at all planting distance but Cangkuang was not suitable for intercrops with maize. Keywords: Ipomoea batatas, clon, intercroping [1] Jurusan Budidaya Pertanian, Fakultas Pertanian UNSRAT Manado, 95115

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Analisis Nutrisi Umbi Ubi Jalar (Ipomoea batatas (L.) Lam.) untuk Konsumsi Bayo dan Anak-anak Suku Dani di Distrik Kurulu Kabupaten Jayawijaya

Agrotek ◽

10.30862/agt.v3i2.563 ◽

2018 ◽

Vol 3 (2) ◽

Author(s):

Andrew B. Pattikawa ◽

Antonius Suparno ◽

Saraswati Prabawardani

Keyword(s):

Sweet Potato ◽

Ipomoea Batatas ◽

Nutritional Value ◽

Animal Feed ◽

Ash Content ◽

Infants And Children ◽

Chemical Analyses ◽

Food Crop ◽

Sweet Potatoes ◽

Development Center

Sweet potato is an important staple food crop especially for the local people of Central Highlands Jayawijaya. There are many accessions that have always been maintained its existence to enrich their various uses. Traditionally, sweet potato accessions were grouped based on the utilization, such as for animal feed, cultural ceremonies, consumption for adults, as well as for infants and children. This study was aimed to analyze the nutritional value of sweet potatoes consumed by infants and children of the Dani tribe. Chemical analyses were conducted at the Laboratory of Post-Harvest Research and Development Center, Cimanggu, Bogor. The results showed that each of 4 (four) sweet potato accessions which were consumed by infants and children had good nutrient levels. Accession Sabe showed the highest water content (72.56%), vitamin C (72.71 mg/100 g), Fe (11.85 mg/100 g), and K levels (130.41 mg / 100 grams). The highest levels of protein (1.44%), fat (1.00%), energy (154.43 kkal/100 gram), carbohydrate (35.47%), starch (30.26%), reducing sugar (3.44%), riboflavin (0.18 mg/100 g), and vitamin A (574.40 grams IU/100 were produced by accession Manis. On the other hand, accession Saborok produced the highest value for ash content (1.32%), vitamin E (28.30 mg/100 g), and ?-carotene (64.69 ppm). The highest level of crude fiber (1.81 %) and thiamin (0.36 mg/100 g) was produced by accession Yuaiken.

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Effect of extrusion-cooking in total carotenoids content in cream and orange flesh sweet potato cultivars

Horticultura Brasileira ◽

10.1590/s0102-05362008000100022 ◽

2008 ◽

Vol 26 (1) ◽

pp. 112-115 ◽

Cited By ~ 12

Author(s):

Marcos José de O Fonseca ◽

Antonio G Soares ◽

Murillo Freire Junior ◽

Dejair L de Almeida ◽

José Luiz R Ascheri

Keyword(s):

Vitamin A ◽

Sweet Potato ◽

Ipomoea Batatas ◽

Potato Cultivars ◽

Extrusion Cooking ◽

Potato Flour ◽

Food Crop ◽

Total Carotenoids ◽

Sweet Potato Flour

Sweet potato (Ipomoea batatas) is a food crop that supplies energy, minerals and vitamins C and B. Some cultivars are very rich in carotenoids (pro-vitamin A). In this study were evaluated and compared the total carotenoids content of two cultivars and the losses on the dehydrated extruded sweet potato flour. Samples from organic and conventional crops were analyzed, in the form of fresh and dehydrated extruded samples. Total carotenoids content of the fresh product, expressed on wet basis, was of 437 µg 100 g-1 for the cream cultivar and 10,12 µg 100 g-1 for the orange cultivar. After dehydration, losses of total carotenoids were of 41% and 38%, respectively. The fresh orange cultivar presented high total carotenoids content in comparison to the cream cultivar. The extruded orange sweet potato flour showed the lowest losses in total carotenoids. Therefore, the processed flour of orange sweet potato could be used to obtain pre-gelatinized extruded flour with high total carotenoids content.

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Stress of Four Sweet Potato (Ipomoea batatas (L) Lam.) Genotypes Under Various Light Illumination Levels of Productive Oil Palm Shading

Beccariana Botanical Research Bulletin ◽

10.30862/bbrp.v7i1.272 ◽

2010 ◽

Vol 7 (1) ◽

Author(s):

H. Agusta ◽

A. Setiawan ◽

H. Purnamawati ◽

T. Sugiarto

Keyword(s):

Sweet Potato ◽

Oil Palm ◽

Ipomoea Batatas ◽

Light Transmission ◽

Observation Time ◽

Research Station ◽

Light Illumination ◽

Font Size ◽

Area Index ◽

Number Of Leaves

The purpose of the study was to determine the effect of various oil palm shading levels on the growth and production of four sweet potato genotypes.  The field experiment was conducted at Cikabayan Research Station Bogor  from August 2003 to March 2004. Split Plot Design was arranged  with four sweet potato genotypes (Sukuh, Jago, BB. 96001.2 and BB. 97096.4) as main plots and  four oil palm shading levels (90 %, 79 %, 68 % and 40 %) as sub plots. Shading  with  0 %  level  (100 % of sun light transmission) was used as control. The result showed that oil palm shading levels from 40 %-90 % decreased number of leaves, leaf area index, length of  root and stem in the most of observation time. Sukuh was the most tolerant  genotype to oil palm shading.

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Evaluation of Orange Fleshed Sweet Potato (Ipomoea batatas L.) Genotypes for Higher Yield and Quality

The Agriculturists ◽

10.3329/agric.v11i2.17483 ◽

2013 ◽

Vol 11 (2) ◽

pp. 21-27 ◽

Cited By ~ 3

Author(s):

MH Rahman ◽

MM Alam Patwary ◽

H Barua ◽

M Hossain ◽

S Nahar

Keyword(s):

Sweet Potato ◽

Ipomoea Batatas ◽

Dry Matter ◽

Agricultural Research ◽

Research Station ◽

Root Yield ◽

Agricultural Research Institute ◽

Yield And Quality ◽

Orange Fleshed Sweet Potato ◽

Research Institute

Four orange fleshed sweet potato (OFSP) genotypes viz., CIP 194513.15, CIP 194515.15, CIP 441132 and CIP 440267.2 collected from International Potato Centre (CIP) and four BARI (Bangladesh Agricultural Research Institute) - hybrid orange flesh sweet potato genotypes viz., H16/06, H19/06, H3/07 and H6/07 were evaluated against BARI SP-3 and BARI SP-4 having orange fleshed at Agricultural Research Station, Bangladesh Agricultural Research Institute, Pahartali, Chittagong for yield and quality. The highest (31.59 t/ha) tuberous root yield was found in CIP 194513.15 which was followed by CIP 440267.2 (30.97 t/ha) and the lowest yield (13.34 t/ha) was obtained in BARI SP 3. The maximum dry matter (29.83%) was obtained in H6/07 while the minimum dry matter (17.61%) was obtained in CIP 441132. Among the tested genotypes the highest (approximately) Vitamin A (919.2 ?g/100 g RE, FW) was recorded in CIP 440267.2, which had red skin and latex absent flesh and the lowest was (approximately) in H6/07 (Vit A 0.0 ?g/100 g RE, FW). The results of the present study indicated that CIP 440267.2 is suitable among the OFSP genotypes for cultivation in Bangladesh on the basis of yield and quality mainly carotinous. DOI: http://dx.doi.org/10.3329/agric.v11i2.17483 The Agriculturists 2013; 11(2) 21-27

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Pertumbuhan dan Produktivitas Lahan Tumpang Sari Tanaman Pinang (Areca catechu L.) dan Kopi (Coffea sp.)

Jurnal Media Pertanian ◽

10.33087/jagro.v3i2.64 ◽

2018 ◽

Vol 3 (2) ◽

pp. 61

Author(s):

Nasamsir Nasamsir ◽

Harianto Harianto

Keyword(s):

Survey Method ◽

Land Productivity ◽

Stem Height ◽

Land Equivalent Ratio ◽

Equivalent Ratio ◽

Effective Combination ◽

Areca Catechu ◽

Coffee Plants ◽

Planting Distance ◽

Descriptive Method

ABSTRAKTumpang sari tanaman pinang dengan tanaman kopi merupakan sebuah kombinasi efektif untuk pemanfaatan lahan. Penanaman kopi dapat dilakukan di antara barisan pinang, sehingga menghasilkan pertumbuhan tanaman dan produktivitas lahan yang optimal. Penelitian dilakukan di Desa Parit Tomo, Kecamatan Betara Kabupaten Tanjung Jabung Barat, dengan kondisi lahan gambut, dilaksanakan pada bulan April sampai Mei 2018. Penelitian ini bertujuan untuk menentukan nilai nisbah kesetaraan lahan (NKL) pada tanaman tumpang sari pinang dengan kopi serta menentukan model tanam tumpang sari pinang dengan kopi. Penelitian ini menggunakan metode survey pada lahan-lahan petani yang ditanami pinang dan kopi monokultur dan pinang ditumpangsarikan dengan kopi. Lokasi penelitian dipilih secara sengaja karena pada lokasi-lokasi tersebut terdapat budidaya tumpang sari pinang dengan kopi. Peubah yang diamati yaitu; jarak tanam (m), tinggi batang (m), lingkar batang (cm), ketebalan daun (mm), warna daun, intensitas cahaya (fc), suhu (0C), dan produktivitas lahan (ton ha-1). Untuk menjawab hipotesis yang diajukan, data yang diperoleh di lapangan dilakukan analisis statistika dengan metode deskriptif dalam bentuk tabulasi dan analisis inferensi dengan uji Z berpasangan dengan taraf ? 0,05%. Hasil penelitian menunjukkan, nilai nisbah kesetaraan lahan (NKL) > 1 (1,84), menggambarkan bahwa sistem tumpang sari pinang dan kopi lebih menguntungkan dibandingkan sistem tunggal dan model pola tanam tumpang sari yang baik menurut penulis adalah model 2 .Kata kunci :, tumpang sari, jarak tanam, nisbah kesetaraan lahan ABSTRACTIntercropping areca plants with coffee plants is an effective combination for land use. Coffee planting can be done between rows of areca plants, resulting in optimal plants growth and productivity of the land. The research will be conducted in Parit Tomo, Betara, Tanjung Jabung Barat, with the condition of peatland. This research will be conducted from April to Mei 2018. This study aims to determine the value of land equivalent ratio (LER) in the intercropping of areca plants with coffee plants and determine the model of cultivation intercropping of areca plants with coffee plants. This research used survey method on farmers' land planted monoculture and intercropping with areca plants and coffee plant. The location of this study was chosen intentionally because at these locations there is a cultivation of intercropping with areca plants and coffee plants. The observed variables are; planting distance (m), stem height (m), stem circumference (cm), leaf thickness (mm), leaf color, light intencity (fc), temperature (0C), and land productivity (ton ha-1). To answer the proposed hypothesis, the data obtained in the field is done statistical analysis with descriptive method in the form of tabulation and inference analysis with paired sample Z-test ? 0,05%. The results showed that land equivalent ratio (LER) was > 1 (2,39), illustrating that the areca plants with coffee plants intercropping system was more profitable than a monocropping system and intercropping model which was good according to the authors was model 2.Keywords : intercropping, planting distance, land equivalent ratio

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The genome of cultivated sweet potato containsAgrobacteriumT-DNAs with expressed genes: An example of a naturally transgenic food crop

Proceedings of the National Academy of Sciences ◽

10.1073/pnas.1419685112 ◽

2015 ◽

Vol 112 (18) ◽

pp. 5844-5849 ◽

Cited By ~ 140

Author(s):

Tina Kyndt ◽

Dora Quispe ◽

Hong Zhai ◽

Robert Jarret ◽

Marc Ghislain ◽

...

Keyword(s):

Sweet Potato ◽

Dna Sequences ◽

Ipomoea Batatas ◽

Pathogenic Bacteria ◽

Arable Land ◽

Artificial Chromosome ◽

Plant Genome ◽

Small Interfering Rnas ◽

Food Crop ◽

Transgenic Food

Agrobacterium rhizogenesandAgrobacterium tumefaciensare plant pathogenic bacteria capable of transferring DNA fragments [transfer DNA (T-DNA)] bearing functional genes into the host plant genome. This naturally occurring mechanism has been adapted by plant biotechnologists to develop genetically modified crops that today are grown on more than 10% of the world’s arable land, although their use can result in considerable controversy. While assembling small interfering RNAs, or siRNAs, of sweet potato plants for metagenomic analysis, sequences homologous to T-DNA sequences fromAgrobacteriumspp. were discovered. Simple and quantitative PCR, Southern blotting, genome walking, and bacterial artificial chromosome library screening and sequencing unambiguously demonstrated that two different T-DNA regions (IbT-DNA1 andIbT-DNA2) are present in the cultivated sweet potato (Ipomoea batatas[L.] Lam.) genome and that these foreign genes are expressed at detectable levels in different tissues of the sweet potato plant.IbT-DNA1 was found to contain four open reading frames (ORFs) homologous to the tryptophan-2-monooxygenase (iaaM), indole-3-acetamide hydrolase (iaaH), C-protein (C-prot), and agrocinopine synthase (Acs) genes ofAgrobacteriumspp.IbT-DNA1 was detected in all 291 cultigens examined, but not in close wild relatives.IbT-DNA2 contained at least five ORFs with significant homology to theORF14,ORF17n, rooting locus (Rol)B/RolC,ORF13, andORF18/ORF17ngenes ofA. rhizogenes.IbT-DNA2 was detected in 45 of 217 genotypes that included both cultivated and wild species. Our finding, that sweet potato is naturally transgenic while being a widely and traditionally consumed food crop, could affect the current consumer distrust of the safety of transgenic food crops.

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Sweet Potato: A Potential Industrial and Staple Food Crop of Nigeria

Outlook on Agriculture ◽

10.1177/003072708701600405 ◽

1987 ◽

Vol 16 (4) ◽

pp. 178-181 ◽

Cited By ~ 1

Author(s):

S. C. O. Nwinyi

Keyword(s):

Sweet Potato ◽

World Economy ◽

Ipomoea Batatas ◽

Management Practices ◽

Staple Food ◽

Food Crop ◽

Growing Period ◽

Ecological Flexibility ◽

Wide Range ◽

The Impact

This article reviews the impact of sweet potato (Ipomoea batatas (L) Lam) on the world economy, its uses, and efforts in Nigeria to popularize its cultivation and acceptability. The potential and average yields of 87 and 20–30 t/ha respectively (over a three–six month growing period) under improved management practices, its ecological flexibility, its low input requirements, the wide range of recipes based on its flour, and easy propagation by vine cuttings distinguish the sweet potato as a potentially important industrial and staple food crop. Problems relating to sweetness, dominant flavour, and the colour of the cooked product are identified as ones requiring solution if its acceptability is to be enhanced.

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POLIKULTUR TANAMAN KELAPA SAWIT (Elaeis quineensis Jacq.) DENGAN TANAMAN JELUTUNG (Dyera polyphylla)

Jurnal Media Pertanian ◽

10.33087/jagro.v4i2.82 ◽

2019 ◽

Vol 4 (2) ◽

pp. 52

Author(s):

Nasamsir Nasamsir ◽

Usman Usman

Keyword(s):

Oil Palm ◽

Optimal Growth ◽

Survey Method ◽

Land Productivity ◽

Stem Height ◽

Leaf Color ◽

Land Equivalent Ratio ◽

Equivalent Ratio ◽

Planting Distance ◽

Descriptive Method

Oil palm planting can be done between rows of jelutung plants, resulting in optimal growth and productivity of the land. The research will be conducted in Betara and Bram Itam Kanan , Tanjung Jabung Barat, with the condition of peatland will be conducted from Mei to Juny 2019. This study aims to determine the value of land equivalent ratio (LER) in the intercropping of oil palm with jelutung plants. This research used survey method on farmers' land planted monoculture and intercropping with oil palm and jelutung plant. The location of this study was chosen intentionally because at these locations there is a cultivation of intercropping with oil palm and jelutung plants. The observed variables are; planting distance (m), stem height (m), stem circumference (cm), leaf color, age of production (years), productivity of the oil palm and jelutung plants in intercropping (ton), and land productivity. To answer the proposed hypothesis, the data obtained in the field is done statistical analysis with Z test and descriptive method in the form of tabulation. The results showed that the production of oil palm and Jelutung monoculture system cropping were more than polyculture system cropping, but based on the calculation of the value of land equivalent ratio (LER), that value was > 1 (1.4).

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Louisiana's Sweetpotato Foundation Seed Program

HortTechnology ◽

10.21273/horttech.4.3.228 ◽

1994 ◽

Vol 4 (3) ◽

pp. 228-230

Author(s):

W.A. Mulkey ◽

J.H. Hernandez

Keyword(s):

Sweet Potato ◽

Ipomoea Batatas ◽

Early Spring ◽

Potato Research ◽

Research Station ◽

Foundation Seed

Foundation sweetpotato [Ipomoea batatas (L.) Lam] seedstock has been produced annually at the Sweet Potato Research Station since 1949. Breeder seedstock is selected from superior hills and used for the following year's foundation seedstock. Fields are intensely monitored after planting until harvest to remove off-type plants, mutations, etc. Seedstock is harvested from August through October, stored, graded, and repacked beginning in late January, and then made available to the growers during the early spring.

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Pemanfaatan Gawangan Tanaman Sawit Produktif untuk Produksi Ubijalar (Ipomoea batatas (L) Lam.)

Caraka Tani Journal of Sustainable Agriculture ◽

10.20961/carakatani.v21i1.20580 ◽

2018 ◽

Vol 21 (1) ◽

pp. 44

Author(s):

H Agusta ◽

A Setiawan ◽

H Purnamawati ◽

W Atmoko ◽

T Sugiarto ◽

...

Keyword(s):

Field Experiment ◽

Sweet Potato ◽

Oil Palm ◽

Ipomoea Batatas ◽

Light Transmission ◽

The Other ◽

Research Station ◽

Low Light ◽

Sun Light ◽

Tolerant Genotype

The purpose of the study was to test the production capability of 9 sweet potato genotypes under various oil palm shading levels. The field experiment on 7 and 8 year old plantation of oil palm was conducted at Cikabayan Research Station of Bogor Agricultural University from August 2003 to March 2004 and from January 2005 to June 2005. At the first experiment, eight sweet potato genotypes (cultivar Sukuh, cultivar Jago, BB. 96001.2, BB. 97096.4, AB. 94065.10, cultivar IR Melati, BB. 97020.10 and BB. 94572.2) were planted under four oil palm shading levels (90%, 79%, 68% dan 40%). At the second experiment, cultivar Shiroyutaka was planted undershading levels of 92.4%, 90.6%, 89.3%, 86.5%, 0% shading level (100% of sun light transmission) was used as a control at the both experiments.The result showed, that oil palm shading levels from 40%-90% decreased tuber and crown production. Genotype AB. 94065.10 was that most tolerant genotype to oil palm shading. Cultivar Sukuh was medium tolerant. The other genotypes were very susceptible againts the low light transmission stress.

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