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Reza Prakoso Dwi Julianto

Program Studi Agroteknologi, Fakultas Pertanian, Universitas Tribhuwana Tunggadewi

Author-ID : 3706609

Biochemistry, Genetics & Molecular Biology Chemistry Mathematics Physics

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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

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.

KERAGAMAN DAN HERITABILITAS 10 GALUR INBRIDA S4 PADA TANAMAN JAGUNG KETAN (Zea mays L. var.ceritina Kulesh) Reza Prakoso Dwi Julianto; Arifin Noor Sugiharto; Andy Soegianto
BUANA SAINS Vol 16, No 2 (2016)
Publisher : Universitas Tribhuwana Tunggadewi

This research aims to determine the variability of S4 generation between waxy corn x local yellow corn (Arjuno) based on seed color selection and cob position. The research was conducted at Kelurahan Dadaprejo, Kecamatan Junrejo, Kota Batu with a height of ± 610 m asl, the maximum temperature is 27.4 º C and minimum temperature is 15.1 º C and with inceptisol type soil. The research started in December 2011 until March 2012. Plant materials that used here were 10 strains of S4 waxy corn from crossing with local corn (Arjuno) that have been selected based on seed color and cob location. This research used Randomized Design Group (RDG), three replications with 30 plants each genotype every replication by using one cob one line selection (ear to row). The results showed the character of plant height, the number of seed line, and the cob circumference among strains showed significant differences between inbred strains, The heritability values among strains showed medium value criteria in all parameters except the stalk length that showed the low heritability value

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

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

POLIPLOIDISASI TANAMAN JAHE MERAH (Zingiber officinale Var. Rubrum) MENGGUNAKAN MUTAGEN KOLKISIN Fransiska Mandela; Reza Prakoso Dwi Julianto; Mohamad Nurul
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.v21i2.3201

This study aimed to obtain recommendations for effective treatment times to increase the growth and yield of ginger plants. The research used a Randomized Block Design, colchicine immersion time was used in this research as the treatments, including 0 hours (control) (L0), 4 hours (L1), 8 hours (L2), 12 hours (L3), and 16 hours (L4). The results showed that were differences in colchicine immersion time caused significant differences between diploid and polyploid plants. The morphological characters of plant height, rhizome weight, productivity, and essential oil, while the morphological characters of root length and rhizome diameter were soaked in colchicine for 8 and 12 hours showed a non-significant difference. Colchicine soaking for 12 hours is the most effective treatment to increase the growth and yield of red ginger plants and has an optimal essential oil content.

PENGARUH KOLKISIN TERHADAP OPTIMALISASI MINYAK ATSIRI TANAMAN JAHE (Zingiber officinale Rosc.) Reza Prakoso Dwi Julianto; Astri Sumiati; I Made Indra Agastya
BUANA SAINS Vol 22, No 3 (2022)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/bs.v22i3.4492

The research aims to obtain the concentration and immersion time to increase the essential oil content, growth, and yield of ginger plants. This research used a split-plot design, with the main plots of ginger varieties and subplots of colchicine immersion time. Parameters observed included stem morphology, leaf morphology, root morphology, rhizome morphology, and essential oil content. The research results show that the optimal immersion time of colchicine with a four ppm dose to increase productivity in the three varieties of ginger was 12 hours. Immersion of 16 hours would reduce the productivity of ginger plants. Immersion using colchicine for 12 hours on white ginger and small white ginger varieties was able to increase the essential oil content to 1.79% and 2.31%, and also increasing essential oil would optimize for red ginger with immersion time for 16 hours was become 2.75%.

Co-Authors Andy Soegianto Arifin Noor Sugiharto Astri Sumiati Fransiska Mandela I Made Indra Agastya Mohamad Nurul

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