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Journal : BUANA SAINS

KERAGAMAN FENOTIPE DAN PRODUKTIVITAS LABU KUNING NUSANTARA (Cucurbita moschene Dutchene) DALAM RANGKA PENGEMBANGAN VARIETAS UNGGUL Reza Prakoso Dwi Julianto; Astri Sumiati
BUANA SAINS Vol 17, No 2 (2017)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (271.018 KB) | DOI: 10.33366/bs.v17i2.813

Abstract

The increase of population and the depletion of productive agricultural land causes the availability of rice as the staple food as carbohidrat becomes unbalanced. Efforts to reduce dependence on rice should be made, through the diversification of alternative food crops containing high carbohydrates. Pumpkin plants (waluh) is one of the crop that have high carbohydrate content and has many types. This research aims to collect various types of yellow squash varieties as the initial material in the assembling of superior varieties, and to identify vegetative character and agronomic character of yellow squash pumpkin varieties. The research was conducted in Randuagung Village, Lumajang Regency with height of 112 asl. The materials used in are local lumajang pumpkin seeds and local poor pumpkin. The results of this study indicate that the ratio of male flowers and female flowers on both varieties of local yellow squash showed the number of male flowers more than the number of female flowers. The beta-carotene content of local lumajang is lower than the local yellow squash is seen from the color of the pumpkin the yellow is getting faded and the taste is less sweet. The resistance to the disease of both varieties of local yellow squash indicates the tolerance criteria. The male juvenile blueberry male jungle flowers are faster than the local yellow squash lumajang, but the age of the local pumpkin flower lumajang is faster than the local yellow squash.The yellow local pumpum lumajang color is relatively the same that is brown, while the varieties of local yellow pumpkin there is a difference that is brown and green.
UPAYA MENINGKATKAN PRODUKSI TANAMAN TOMAT DENGAN APLIKASI GANDASIL B Astutik Astutik; Astri Sumiati
BUANA SAINS Vol 18, No 2 (2018)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (160.492 KB) | DOI: 10.33366/bs.v18i2.1188

Abstract

One of efforts to increase tomato plant productions can be done by fertilization. Gandasil B was one of leaf fertilizer which can be used to fill P of plant so that it can increase the plant production. However, so far it has not been used for tomato plants. Therefore, it needs to do a research in order to find out the concentration and fertilization period of Gandasil B to tomato production. The research was conducted in Lowokwaru Village, Malang on March to August 2012. The research consisted of 8 treatment combinations, they are K0P1 (without treatment), K1P2 (1g/l per 1 week), K2P1 (2g/l per 1 week), K3P1 (3g/l per 1 week), K0P2 (without treatment), K1P2 (1g/l per 2 weeks), K2P2 (2 g/l per 2 weeks), K3P2 (3 g/l per 2 weeks). Each treatment was repeated four times.The research results can be concluded that there is concenration interaction and fertilization period to plant height at the age of 14 and 49 days after planting, leaves amount at the age of 14, 21, 28, 35, and 42 after planting, flowers amount at the age of 49 days after planting, branches amount at the age of 49 days after planting, and fruits amount. However, partially fertilization period treatment affects at flowering time, flowers amount at the age of 28.35 and 42 days after planting, and fruits weight. The best plant of Gandasil B fertilization results 25.98 fruits/plant with total weight of 1.23 kg/plant
MULTIPLIKASI MERISTEM UBIKAYU (Manihot esculenta) DALAM MEDIA MURASHIGE AND SKOOG (MS) MODIFIKASI NAA (Naphthalene Acetic Acid) DAN BA (Benzyl Adenine) Natalia Tinoncy Waro; Astutik Astutik; Astri Sumiati
BUANA SAINS Vol 20, No 2 (2020)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v20i2.2256

Abstract

This research aimed to see the effect of the addition of NAA and BA into MS media for the development of cassava micropropagation, furthermore, the composition of the media was appropriate to produce the maximum number of cassava shoots. The study was conducted using a completely randomized factorial design consisting of 2 factors, namely: Factor I: the concentration of Naphthalene Acetic Acid (NAA) consisted of 2 levels, namely: 0 mg / l (N0) and 0.1 mg / l (N1). The second factor was the concentration of Benzyl Adenine (BA) consisting of 4 levels: 1.0 mg / l (B1); 3.0 mg / l (B2); 5.0 mg / l (B3) and 7.0 mg / l (B4). Apply 8 treatment combinations, N0B1; N0B2; N0B3, N0B4, N1B1; N1B2; N1B3; N1B4. Observations were made on the variables: time of shoot initiation, number of shoots, number of leaves, and percentage of live and contaminated explants until the age of 16 weeks after sub-culture. The results showed that there was no interaction between the addition of the auxin hormone NAA and the cytokinin BA into MS medium at the time of shoot initiation, but both hormones could support the number of new shoots and the number of leaves per plantlet. Media without the addition of NAA with the addition of BA 1.0 - 3.0 mg / l was able to initiate new shoots the fastest, namely 7-10 days. The best number of shoots of cassava (4.43 shoots/explant) used MS medium without the addition of NAA with BA 3.0 mg / l for 16 weeks (4 months) of culture.
PENGGUNAAN ALAR DAN BENZYLADENIN PADA MULTIPLIKASI MERISTEM PISANG Astutik Astutik; Sutoyo Sutoyo; Astri Sumiati
BUANA SAINS Vol 21, No 2 (2021)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v21i2.3202

Abstract

Alar is a growth regulator that in certain concentrations can inhibit growth, shorten stem segments, strengthen stems to improve the quality of tissue-cultured seedlings. This study aimed to determine the effect of alar and Benzyl Adenin (BA) on banana meristem multiplication. The experiment was conducted in Tissue Culture Laboratory, Faculty of Agriculture, Tribhuwana Tunggadewi University, Malang. The study used a Completely Randomized Design consisting of two factors, namely alar concentration (A0 = 0 mg/l and A1 = 1 mg/l) and BA concentration (B1 = 1 mg/l, B2 = 3 mg/l, B3 = 5 mg/l and B4 = 7 mg/l). Observations were made for 12 weeks of culturing with the observation variables: shoot initiation, number of shoots/explants, number of leaves, and shoot height. The results showed that alar and BA did not significantly affect the development of banana meristems. The use of Alar caused the banana plantlets to be shorter and sturdy, while BA affected the number of shoots produced. BA 1 mg/l was able to increase more shoots. 
PENGARUH PEMBERIAN HORMON NAA, PUPUK GANDASIL DAN PUPUK GROWMORE PADA PERTUMBUHAN TANAMAN ANGGREK Astri Sumiati; Astutik Astutik
BUANA SAINS Vol 19, No 2 (2019)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (166.321 KB) | DOI: 10.33366/bs.v19i2.1744

Abstract

Orchid is an ornamental plant, including the Orchidaceae tribe, which is widely favored among the ornamental plant community because it has high economic value, unique shapes, attractive colors and longer-lasting blooming flowers, one of which is a Phalaenopsis orchid. One of the efforts to accelerate the vegetative phalaenopsis can be done with the application of the NAA hormone and leaf fertilizers such as Gandasil fertilizer and Growmore fertilizer. The aims of this research to determine the effect of NAA, Gandasil and Growmore fertilizer types on the growth of hybrid Phalaenopsis orchids. The study was conducted at Greenhouse Jalan Tlogomas Kec. Lowokwaru, Malang City, for 5 months. The experiment was carried out using a factorial Completely Randomized Design (CRD) consisting of 2 factors namely, the factor I: NAA concentration: control 0 ppm (N0), 100 ppm (N1), 200 ppm (N2), and 300 ppm (N3). Factor II: leaf fertilizer, Growmore (P1) and Gandasil D (P2). Variables observed included: when buds appeared, leaf length, leaf width and percentage of live plants. The results showed that there was an interaction between the concentration of NAA and the type of leaf fertilizer on the emergence of shoots. When the fastest shoots appear at 100 ppm NAA, Growmore fertilizer (N1P1), which is 29 days. The NAA hormone influences the increase in leaf length and leaf width until 16 weeks of age. The best growth of hybrid Phalaenopsis was obtained at the administration of 200 ppm NAA with an increase in leaf length of 1.49 cm and an increase in leaf width of 1.06 cm until 16 weeks of age. Growmore and Gandasil D did not affect the vegetative growth of hybrid Phalaenopsis Orchid plants.
ANALISIS RESIDU PESTISIDA PADA JERUK MANIS DI KECAMATAN DAU, MALANG Astri Sumiati; Reza Prakoso Dwi Julianto
BUANA SAINS Vol 17, No 1 (2017)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (275.783 KB) | DOI: 10.33366/bs.v17i1.574

Abstract

Citrus is one type of fruit that is highly favored by the people. Citrus plants are vulnerable to pests and plant diseases that intensive use of pesticides in the field can not be avoided. Citrus fruits commonly consumed in the form of raw materials that need to be considered food quality and safety of citrus fruits to public health. This study aims to identify and analyze pesticide residues in citrus fruits in the district of Dau, Malang (a case study in the Village Tegalwaru subdistrict Dau, Malang) as one of the centers of citrus production in East Java with the use of pesticides are quite diverse. This research is a survey and observational with cross sectional approach. Data use of pesticides by farmers was measured by a survey conducted for the farmers and merchants. The sample was 3 kg of oranges produced by three farmers and 3 kg of oranges produced by 3 merchants Village Tegalwaru District of Dau, Malang where interviews illustrate the differences in the type and frequency of the use of pesticides during the growing season oranges, which is a high level (sample A ), medium (sample B) and low (sample C). The measurement results residues acephate, carbofuran, carbosulfan, diazinon, dimethomorp, fenobucarb, profenofos, pyrethrin everything is still below the Limit of Detection (LOD) testing in the laboratory PT. Angler Biochem Lab. In profenofos residue tests on samples found to be higher farmer is 0.108 ppm compared with a sample of traders is 0,050 ppm. The conclusions of this study are bauh oranges produced by farmers in the sub-district Tegalwaru Dau, Malang get evidence that pesticide residues are still below the prescribed MRL.
ANALISA RESIDU PESTISIDA DI WILAYAH MALANG DAN PENANGGULANGANYA UNTUK KEAMANAN PANGAN BUAH JERUK Astri Sumiati; Reza Prakoso Dwi Julianto
BUANA SAINS Vol 18, No 2 (2018)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (98.492 KB) | DOI: 10.33366/bs.v18i2.1185

Abstract

The use of pesticides is widely used in the production of citrus fruits for protection before and after harvest. The use of pesticides on a broad scale can pollute the environment and leave residues in plants and in plants such as fruit leaves and tubers. A survey was conducted to evaluate the level of pesticide residues in citrus fruits. The survey method is carried out by recording pesticide use by farmers and traders. The survey will be conducted in Dau, Batu and Poncokusumo Districts, Malang Regency by interviewing 10 farmers and 10 orange traders in each District. The Gas Cromatography method was carried out to measure the levels of pesticide residues tested at the Angler Biochemlab Laboratory, Surabaya. Descriptive analysis was used to analyze the levels of pesticide residues in citrus fruits then compared to the Maximum Residue Limit (BMR) through SNI 7313: 2008 quality standards on agricultural products. The residue levels of profenofos in farmer samples were found to be higher at 0.108 ppm compared to the sample from traders, namely 0.050 ppm at the Tegalweru village research site. In addition, traders in the village of Poncokusumo knew the imidaclroripid content was close to the maximum threshold of 0.040 ppm in farmer samples and 0.010 ppm in the merchant sample. Decreased levels of pesticide residues on food can be done with several approaches, namely physically and chemically. Reduction of pesticide residues in agricultural products can be done in several ways including by washing products with running water for several times or can also be done by soaking in water for one hour
RESPON TANAMAN KACANG HIJAU ( Vigna radiate L. ) TERHADAP JENIS DAN DOSIS PUPUK ORGANIK Astri Sumiati; Edison Indawan; Poppy Indrihastuti; Yohanes Aryanto Dendo Ngara
BUANA SAINS Vol 21, No 1 (2021)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v21i1.2927

Abstract

The purpose of this research was to study the effectiveness of type and dose of organic fertilizer on the growth and yield of green beans. The method used in this research was a completely randomized design of a factorial pattern. The factors consisted of a type of organic fertilizer (J) (J1 = chicken manure, J2 = cow manure, J3 = bokashi municipal waste) and the dose of organic fertilizer (D) (D1 = 80 g/polybag, D2= 160 g/polybag, D3= 240 g/polybag). The results showed that there was no interaction between the type and dose of organic fertilizer on all observation parameters. Organic fertilizer type bokashi municipal waste was gave an effect on the parameters of plant height at the age of 42 DAP (53 cm), the number of leaves at the age of 42 DAP (23.23 strands). The dose of 80 g/polybag gave a significant effect on plant height parameters at 42 DAP (53 cm), the number of leaves at 42 DAP (23.22 strands).
STIMULASI PERTUMBUHAN Dendrobium sp MENGGUNAKAN HORMON AUKSIN Naphtalena Acetic Acid (NAA) DAN Indole Butyric Acid (IBA) Astutik Astutik; Astri Sumiati; Sutoyo Sutoyo
BUANA SAINS Vol 21, No 1 (2021)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v21i1.2659

Abstract

Dendrobium sp is one type of orchid that is in demand by the public because of the various flower shapes and attractive colors but has a long growth period. Therefore, efforts are needed to accelerate the flowering phase of Dendrobium sp. The purpose of this study was to determine the effect of the hormone auxin in accelerating the growth of Dendrobium sp. The research was carried out using a completely randomized design with a 4x2 factorial pattern with 3 replications. The first factor was the treatment of hormone Auxin NAA (A1) and IBA (A2) then the concentration consisted of 4 levels, namely control (K0); 100 mg/l (K1); 200 mg/l (K2), and 300 mg/l (K3). Observations were made every month variables included plant height, number of leaves, length and width of leaves, number of roots, and length of roots. The results showed that the type and concentration of auxin (Naphthalene Acetic Acid) and (Indole Butyric Acid) interacted to support the growth of leaf length, leaf width, and root length of Dendrobium sp orchids. IBA auxin was more effective in promoting growth and rooting of Dendrobium sp than NAA hormone, the optimal concentration of 200 mg/l until the age of 3 months after acclimatization.
ANALISIS KESESUAIAN LANSKAP FULAN FENAN SEBAGAI OBJEK WISATA SEJARAH YANG BERKELANJUTAN Debora Budiyono; Hendra Kurniawan; Astri Sumiati; Yohanes Delvianus Assa
BUANA SAINS Vol 22, No 2 (2022)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v22i2.3771

Abstract

The Fulan Fehan area located in Dirun Village, Lamaknen District, Belu Regency, East Nusa Tenggara Province. The Fulan Feran area has beautiful natural potential expanses of meadows, cactus plants, and livestock grazing areas. While cultural values such as several makes forts inherited from the Portuguese and menhirs or offering tables, stone graves. The existence of Fulan Fehan area has the potential as a tourist attraction. Fulan Fehan area is one of the historical tourist destinations however, it develops without considering land suitability. The aimed of this study was to analyze the land suitability of the Fulan Fehan landscape as a sustainable historical tourism object. The method used is field observation and Focus Group Discussion (FGD) with the Dirun Village community. Data analysis was carried out spatially through a Geographic Information System (GIS), namely physical, history, objects and attractions, and visual landscapes. The results showed that the suitability of the landscape of the historical tourist area of Fulan Fehan is very suitable (SS) has an area of 149.62 ha (78.78%), quite suitables (CS) has an area of 25.99 ha (13.69%), and less suitable (KS) which has an area of 14.31 ha (7.53%). Suitability analysis of tourism and FGDs showed that Fulan Fehan has potential to develop sustainable historical tourism.