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FAKTOR YANG MEMPENGARUHI PERILAKU KONSUMEN BUAH IMPOR Sudiyarto, Sudiyarto; Hidayat, Ramdan; Widayanti, Sri
Jurnal Sosial Ekonomi Pertanian Vol 1, No 2 (2007)
Publisher : Jurnal Sosial Ekonomi Pertanian

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Consumers hold important role in determination whether the product has superiority or not. The overflowing or import fruits affected to a strong competition between local and impor fruits. Although local fruit seemingly lost in the competing with import fruits, however the consumer (especially city consumer) is the final determiner who act the jury to judge the kind of fruit that is superior through multi attribute judgement. The research objected was to analyze the influece of the factors namely culture, social enviroment, individual, psychological and marketing strategy toward consumer’s attitude in purchasing fruits to show ‘competitive value’ of local fruit toward impor fruits. This research purposely conducted in Surabaya as one of the final destinations for fruit marketing with fruit’s consumer as a respondent and using survey method. Sample taken of 140 responden from five Surabaya areas. Data collection conducted by interviews and direct obsevation toward several research object. This research analyzed by Structural Equation Modelling (SEM). The result shows that on import fruits, changing culture and the increasing of individual characteristic significally significant effect to consumer behaviour in import fruits consumtion. Furthermore, the consumer achievement behaviour statistically significant support to vendor to take “marketing strategi” Keywords : Consumer Behaviour, Import fruits, Structural Equation Modelling

KARAKTERISTIK DAN AKTIVITAS ANTIOKSIDAN BERAS ANALOG DARI TEPUNG KOMPOSIT (GADUNG, JAGUNG, MOCAF) DENGAN PENAMBAHAN PEWARNA ANGKAK (CHARACTERISTICS AND ACTIVITIES ANTIOXIDE RICE ANALOG OF COMPOSITE FLOUR (MADE, CORN, MOCAF) WITH ADDITIONAL DYES ANGKAK) Winarti, Sri; Djajati, Sri; Hidayat, Ramdan; Jilian, Latni
REKAPANGAN Vol 12, No 1 (2018): REKAPANGAN
Publisher : UPN VETERAN JAWA TIMUR

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Abstrak Beras analog merupakan beras tiruan yang berbentuk dan mempunyai tekstur menyerupai beras namun dibuat dari bahan pangan lokal non beras seperti umbi-umbian maupun serealia lainnya. Salah satu umbi yang dapat digunakan dalam pembuatan beras analog adalah umbi gadung. Karakteristik beras yang dihasilkan dapat ditingkatkan dengan substitusi tepung lain, salah satunya adalah mocaf. Selain itu, untuk meningkatkan nilai fungsional beras, dapat ditambahkan bahan pangan lain yang mengandung antioksidan, salah satunya yaitu angkak. Penelitian yang dilakukan bertujuan untuk mengetahui pengaruh substitusi dan penambahan angkak terhadap karakteristik dan aktivitas antioksidan beras yang dihasilkan. Rancangan yang digunakan dalam penelitian ini adalah Rancangan Acak Lengkap (RAL) yang terdiri dari 2 faktor. Faktor pertama adalah perlakuan proporsi tepung gadung : tepung mocaf (90% : 10% ; 80% : 20% ; 70% : 30% ; 60% : 40%) dan faktor kedua adalah penambahan Angkak (0,6 %; 1,2%; 2%) dengan kombinasi perlakuan 12 perlakuan dan dua kali ulangan. Data dianalisis menggunakan metode two-way ANOVA pada tingkat kepercayaan 95%, Jika ada perbedaan antar perlakuan dilanjutkan dengan Uji Tukey Î± = 5%. Hasil penelitian menunjukan perlakuan terbaik adalah beras analog dengan substitusi tepung mocaf 20% dan penambahan angkak 2% dengan kadar air 10,17%, kadar abu 2,27%, kadar pati 55,41%, kadar amilosa 25,61%, intensitas warna L,a,b berturut-turut adalah 55,66,19,93, 13,28, aktivitas antioksidan 62,10%, daya rehidrasi 121,33%, volume pengembangan 133,52. Kata kunci : Beras analog, umbi gadung, angkak, antioksidan,mocaf

Studies on Dormancy Periods and Growth Rhythm of Shoot and Root of Mangosteen (Garcinia mangostana L.) Ramdan Hidayat; Achmad Surkati; Roedhy Poerwanto; Latifah K. Darusman; Bambang S. Purwoko
Indonesian Journal of Agronomy Vol. 33 No. 2 (2005): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Mangosteen has a good prospectus for international market. Many people in the world like this fruit because it is delicious, has high nutrient contents, and it can be consumed as a fresh fruit. The growth of mangosteen is very slow with a very long juvenile period because of its long dormancy period. The objective of this research was to study the dormancy periods and growth rhytm of shoot and root of young and adult mangosteen seedlings. The research used completely randomized design and consisted of two experiments. The first experiment was to study the dormancy and flushing periods. The second experiment was to study the growth patterns of shoot and root foom several ages of mangosteen seedlings. This research was conducted at Mekarsari Fruit Park, Cileungsi, Bogor. The result of the experiment showed that two years old of mangosteen seedling had 5 flushes per year, four years old of mangosteen had 3-4 flushes per year, and eight years old of mangosteen only had 2 flushes. Dormancy periods were significantly different between 2,4 and 8 year of mangosteen seedling. After the seedlings have branches, the dormancy periods become twice as many as that before branching. The roots grew rapidly two weeks before flush and slower after flush occurred. Key words: Garcinia mangostana, dormancy, flush, seedling

Aplikasi Streptomyces sp. Sebagai Agen Hayati Pengendali Lalat Buah (Bactrocera sp.) dan Plant Growth Promoting Bacteria (PGPB) pada Tanaman Tomat dan Cabai Penta Suryaminarsih; Wiwik Sri Harijani; Elly Syafriani; Noni Rahmadhini; Ramdan Hidayat
AGRIUM: Jurnal Ilmu Pertanian Vol 22, No 1 (2019)
Publisher : UNIVERSITAS MUHAMMADIYAH SUMATERA UTARA

Penelitian ini bertujuan untuk mengaplikasikan Streptomyces sp. sebagai agen hayati pengendali lalat buah dan Plant Growth Promoting Bacteria (PGPB) pada tanaman tomat dan cabai. Streptomyces sp. yang digunakan berasal dari hasil eksplorasi dari rhizosfer lahan tomat yang terkontaminasi pestisida di Kecamatan Pare dan hutan lindung Merubetiri. Percobaan disusun menggunakan Rancangan Acak Lengkap dengan 2 faktor. Faktor pertama yaitu isolat asal lahan tomat yang terkontaminasi pestisida (TP), isolat hutan lindung Merubetiri 1 (Mrb1) dan isolat hutan lindung Merubetiri 2 (Mrb2), sedangkan faktor kedua adalah seri pengenceran yaitu seri pengenceran 103, 104, 105.Masing-masing perlakuan diulang sebanyak 4 kali. Hasil penelitian menunjukkan semua isolat Streptomyces sp. yang digunakan sebagai agen hayati dapat mengendalikan lalat buah Bactrocera sp. dan berpotensi sebagai PGPB untuk tanaman tomat dan cabai. Rata-rata pertumbuhan tanaman tomat dan cabai tertinggi dengan perlakuan Streptomyces sp. dari lahan tomat Pare (TP) dengan seri pengenceran 103. Jumlah bunga yang terbanyak terdapat pada tanaman tomat dengan pengaplikasian TP dengan seri pengenceran 105 dan Mrb dengan seri pengenceran 103

PENGARUH JENIS DAN KONSENTRASI NUTRISI TERHADAP PERTUMBUHAN DAN HASIL TANAMAN SELADA (Lactuca sativa L.) SECARA HIDROPONIK WICK SYSTEM) Eka Widiyawati; Ramdan Hidayat; Didik Utomo Pribadi
Plumula : Berkala Ilmiah Agroteknologi Vol 6 No 2 (2018): Plumula : Berkala Ilmiah Agroteknologi
Publisher : UPN VETERAN JAWA TIMUR

Lettuce (Lactuca sativa L.) classified in compositae family (Asteracea). The genetic source of lettuce derived from America and West Asia, whereas in Indonesia this plant growing so fast as commercial vegetable plant. Lettuce cultivation system that done by Indonesian farmers commonly is conventional. The efforts to increase productivity and quality of lettuce are conventionally hydroponic with wick system through testing of Type and Concentration of Nutrition. This research was held on February – March in Green house of Agriculture Faculty of UPN “Veteran” East Java. This study as factorial experiment 2 factor composed in Complete Random Design (CRD) and repeated 3 times. The first factor is the type of nutrition and the second factor is the concentration of nutrition, results showed there is no real interaction in all observation variables which include: number of leaves, length of the plant, large of leave, fresh weight and dry weight. Nutrition type give real effect on fresh weight, dry weight, and large of leave of the lettuce plant. AB Mix nutrition resulting in highest fresh weight and large of leaves and real different with Riyant nutrition. Concentration treatment unaffected in whole observation changes of growth and lettuce production.

KAJIAN KONSENTRASI SITOKININ DAN DOSIS PUPUK NPK TERHADAP PERTUMBUHAN DAN HASIL BULBIL TANAMAN PORANG (Amorphophallus onchophyllus) Ramdan Hidayat; Felicitas Deru Dewanti; Guniarti Guniarti
Plumula : Berkala Ilmiah Agroteknologi Vol 7 No 1 (2019): Plumula : Berkala Ilmiah Agroteknologi
Publisher : UPN VETERAN JAWA TIMUR

Porang plants ( Amorphophallus onchophyllus ) is a shrub ( herb ) that the leaves grow armpit bulbil as a breeding tool. In addition to using bulbil porang can also reproduce by using bulbs and seeds. Bulbs to be harvest as result because it has glucomanan compounds that high economic value. Currently there porang tuber production sold to employers to be exported abroad in the form of chips filled with a gathering of farmers iles - iles that grows wild in the environment and forestry plantations. Intensive cultivation efforts should be supported by the availability of seedlings. Therefore, it needs to be study with seedlings originating from sources other than the tubers, ie with bulbil. The purpose of the study is 1) Knowing the effect of combined treatment of sitokinin (CPPU) concentration and dose of NPK fertilizer on growth and yield porang 2) Knowing sitokinin (CPPU) concentration effective in improving plant growth of porang and 3) Knowing the optimum dose of NPK fertilizer on plant growth porang. This experiment is a factorial experiment with 2 (two) factors which are arranged in a completely randomized design (CRD) and repeated 4 times. The first factor is the concentration CPPU (K), which consists of : K0 = Without CPPU (control), CPPU 5 ppm = K1, K2 = CPPU 10 ppm, 15 ppm CPPU = K3 and K4 = CPPU 20 ppm. While the second factor is the dose of fertilizer N , P and K (P) consisting of : P1 = dose of NPK fertilizers (Urea 15 g, SP36 7.5 g, KCl 7.5 g), P2 = dose of NPK fertilizers (Urea 20 g , SP36 10 g, 10 g KCl) and P3 = dose of NPK fertilizers (Urea 25 g, SP36 12.5 g, 12.5 g KCl). Observations were made on growth and development, as well as crop yields porang, which consists of: plant height (cm), leaf canopy width (cm), stem diameter (cm), number of bulbil, bulb diameter (cm) and weight of tubers per plant. The results showed that: 1) There was no significant interaction of all variables observation, 2) Concentration CPPU very significant effect on canopy leaf width and number of bulbil. Concentration CPPU 20 ppm produces a wide canopy of leaves and number of bulbil highest with increased width of the leaf canopy by 38 % and increase in number of bulbil by 87% compared with controls. 3) Fertilizer doses very significant effect on canopy leaf width and number of bulbil. Dose of NPK fertilizer 25 g urea, 12.5 g SP36 and 12.5 g KCL (P3), shows the results of the leaf canopy width and number of bulbil highest with increased width of the leaf canopy by 34% and increase of number bulbil by 67% compared with fertilizer treatment 15 g of urea, 7.5 g SP-36 and 7.5 g KCL (P1).

FAKTOR YANG MEMPENGARUHI PERILAKU KONSUMEN BUAH IMPOR Sudiyarto Sudiyarto; Ramdan Hidayat; Sri Widayanti
Jurnal Sosial Ekonomi Pertanian (J-SEP) Vol 1 No 2 (2007)
Publisher : University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar

Consumers hold important role in determination whether the product has superiority or not. The overflowing or import fruits affected to a strong competition between local and impor fruits. Although local fruit seemingly lost in the competing with import fruits, however the consumer (especially city consumer) is the final determiner who act the jury to judge the kind of fruit that is superior through multi attribute judgement. The research objected was to analyze the influece of the factors namely culture, social enviroment, individual, psychological and marketing strategy toward consumer’s attitude in purchasing fruits to show ‘competitive value’ of local fruit toward impor fruits. This research purposely conducted in Surabaya as one of the final destinations for fruit marketing with fruit’s consumer as a respondent and using survey method. Sample taken of 140 responden from five Surabaya areas. Data collection conducted by interviews and direct obsevation toward several research object. This research analyzed by Structural Equation Modelling (SEM). The result shows that on import fruits, changing culture and the increasing of individual characteristic significally significant effect to consumer behaviour in import fruits consumtion. Furthermore, the consumer achievement behaviour statistically significant support to vendor to take “marketing strategi” Keywords : Consumer Behaviour, Import fruits, Structural Equation Modelling

Study of growth and yield of several sources of indonesian konjac (Amorphophallus onchophyllus) seedling by CPPU treatments Ramdan Hidayat
Nusantara Science and Technology Proceedings Seminar Nasional Magister Agroteknologi Fakultas Pertanian UPN “Veteran” Jawa Timur
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2020.0616

Indonesian konjac (Amorphophallus onchophyllus L.) are plants that contain high glucomannan substances and have distinctive growth characteristics that are influenced by weather changes. When entering the rainy season, the seeds grow and when they enter the dry season is dormancy, so the active growth period for konjac is only about 4 - 5 months. Seeds for cultivation of konjac, apart from being tubers, can also use bulbils or seeds. One of the efforts to promote the growth of konjac plants is the application of the growth regulator CPPU (N- (2-Chloro-4-pyridinyl) -N-phenylurea) as a cytokinin that effectively inhibits aging and accelerates cell division. The research objectives were to determine the interaction between the treatment of CPPU concentration and the kind seed source, to determine the effective concentration of CPPU and to determine the best type of seed source for konjac cultivation. The factorial experiment with two factors was arranged in a randomized block design (RBD) with 3 replications. The first factor in the treatment of CPPU concentration consisted of 4 levels (control, 5 ppm, 10 ppm and 15 ppm) and the second factor was the kind of seed source consisting of 3 types of seeds (tubers, bulbils and seeds). The results showed that there was no significant interaction of combination treatment of CPPU concentration and kinds of seed sources on the growth and yield of konjac plants. The concentration of growth regulators CPPU significantly affected tuber weight, increased tuber weight, tuber diameter and active growth period. The CPPU concentration of 15 ppm produced the highest weight of konjac tubers. The source of seedlings from bulbil is better than the source of seed from tubers and seeds in terms of increasing tuber weight.

Effect of Dosage and Timing of Coconut Water on Growth and Yield of Tomato Plants (Lycopersicum Esculentum, Mill.) Juli Santoso Pikir; Ersa Putri Sanjaya; Ramdan Hidayat
Nusantara Science and Technology Proceedings Seminar Nasional Agroteknologi Fakultas Pertanian UPN “Veteran” Jawa Timur 2021
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2010

Tomato (Lycopersicum esculentum, mill.) is one of the horticultural commodities with high economic value. The demand is increasing from time to time. One of the factors that decrease productivity in tomato cultivation is due to high flower loss. This study aims to determine the effect of the best dose and time application of coconut water on the growth and yield of tomato plants. The research was conducted in March-June 2020 at the Experimental Garden of the Faculty of Agriculture, UPN “Veteran” Jawa Timur. The research used Completely Randomized Design (CRD) two factors which is dose and time application of coconut water that repeated three times for each treatment combination. The first factor was the dosage of coconut water with 4 levels, 0 ml/p; 500 ml/p; 1000 ml/p, and 1500 ml/p. The second factor was the time application of coconut water with 3 levels, 30 DAP, 45 DAP, and 60 DAP. The results showed that the combination treatment with a dosage of 500 ml with a time of application of 45 DAP showed the highest yields on the total number of harvested fruit, total harvested fruit weight, and fruitset.

Production of Several Types of Vegetables in the Composition of the Growing Media Cultivated in a Verticulture Ramdan Hidayat; Purnomo Edi Sasongko; Nora Augustien
Nusantara Science and Technology Proceedings International Seminar of Research Month 2021
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2465

Mitigation of the risk of decreasing food security in urban areas can be done through the use of yardland through urban agriculture which is currently being carried out by urban communities since staying at home is one of the family's independent food solutions by cultivating short-lived vegetables (3-4 weeks) with a multilevel agricultural cultivation system. or ver-tical. The purpose of this study was to determine the composition of the growing media which resulted in the best production of three types of veg-etable crops cultivated vertically. The research was carried out in the ex-perimental garden of the Faculty of Agriculture, UPN "Veteran" Jawa Timur, Surabaya which was arranged in a completely randomized design (CRD), and was repeated 3 times. Factor 1 is the Composition of Planting Media which consists of 4 kinds of composition, namely: Soil, Compost, and Manure, namely: 1:1:1 (K1); 1:1:2 (K2); 1:2;1 (K3), and 1:2:2 (K4). The second factor is the type of vegetables (J), which consists of 3 types, namely: Pakcoy Mustard Plants (J1), Kangkung Plants (J2), and Red Spinach Plants (J3). The results showed that there was a significant interaction between plant height and vegetable production, where the K4J3 combination produced the highest production and was significant different with other treatment combinations.

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