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THE EFFECT OF SEVERAL CONCENTRATIONS OF SAKAWA PLANT GROWTH REGULATOR ON SEED GERMINATION AND SEEDLING GROWTH OF LERAK (Sapindus rarak DC) ON COMPOST MEDIA Sumiasri, Nurul; Priadi, Dody; Kabinawa, I.N.K.
BIOMA Vol 1, No 1, April (2011): Bioma
Publisher : BIOMA

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Study of the effect of several concentrations of plant growth regulator (Sa-kawa) on seed germination and seedling growth of lerak (Sapindus rarak D.C ) on compost media was carried out in the Plant and Animal Germplasm Garden of Cibinong. The objective of this study was to know optimum concentration of plant growth regulator on growth of lerak This study was arranged by using randomized complete design (RCD) with 3 (three) replications. The treatments of concentrations variation of plant growth regulator i.e.Â 0 (control), 1, 2 and 3 ml/l were used. Each treatment consists of 5 samples (individuals).. The results showed thatÂ the good concentration to the growth parameterÂ such as growth percentage, plant height, total leaves, root length and total root were 2 ml of Sakawa inÂ 1ml/l (one liter of water). Keywords: sakawa plant growth regulator, growth, seedling, Sapindus rarak compost

PEMANFAATAN DAUN TANAMAN BERKAYU SEBAGAI PUPUK ORGANIK TANAMAN SAYURAN DAN JAGUNG - (UTILIZATION OF WOODY PLANT LEAVES AS ORGANIC FERTILIZER FOR VEGETABLES AND CORN) Priadi, Dody; Kusmawan, Dede
Biopropal Industri Vol 8, No 2 (2017)
Publisher : Balai Riset dan Standardisasi Industri Pontianak

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This study aimed to use woody plant leaves as organic fertilizer (compost) and their effects on vegetables and corn. The compost was made from leaves of Samanea saman, Swietenia macrophylla, Nephelium lappaceum and cow dung (1:3, 2:2 and 3:1) using OrgaDec (0.5% w/w), Decomic (0.1% v/w) and Dectro (0.1 v/w) as bioactivator. The result showed that compost from Samanea saman leaves and cow dung (1:3) using Decomic (0.1% v/w) met the organic fertilizer standard. The compost was applied to Ipomoea reptans, Capsicum annuum and Zea mays on a media from compost and latosol soil (1:3, 2:2 and 3:1) using Completely Randomized Design (CRD) with 3 replications. The analyzed data using ANOVA showed no significant difference in the growth parameter of tested plants. The best media for Ipomoea reptans was the mixture of compost and latosol soil (3:1) meanwhile for Zea mays and Capsicum annuum were 1:3 and 2:2, respectively.Keywords: compost, compost application, organic fertilizer, woody plant leavesABSTRAKPenelitian ini bertujuan untuk memanfaatkan daun tumbuhan berkayu menjadi pupuk organik (kompos) serta pengaruhnya terhadap tanaman sayuran dan jagung. Kompos dibuat dari daun kihujan (Samanea saman), daun mahoni (Swietenia macrophylla) daun rambutan (Nephelium lappaceum) dan kotoran sapi (1:3, 2:2 dan 3:1) dengan penambahan bioaktivator OrgaDec (0,5% w/w), Decomic (0,1% v/w) dan Dectro (0,1 v/w). Hasil analisis kimia menunjukkan bahwa kompos yang dibuat dari daun kihujan dan kotoran sapi (1:3) yang menggunakan bioaktivator Decomic (0,1% v/w) adalah perlakuan yang paling sesuai dengan baku mutu pupuk organik berdasarkan Permentan No.70/Permentan/SR.140/10/2011. Kompos hasil penelitian diujicobakan kepada tanaman kangkung darat (Ipomoea reptans), cabe keriting (Capsicum annuum) dan jagung manis (Zea mays) pada media campuran kompos dan tanah latosol (1:3, 2:2 dan 3:1) menggunakan Rancangan Acak Lengkap (RAL) dengan 3 ulangan sedangkan data yang diperoleh diolah dengan ANOVA. Meskipun hasil ujicoba kompos tidak menunjukkan perbedaan yang nyata secara statistik pada setiap parameter pertumbuhan ketiga jenis tanaman uji tersebut namun secara umum media yang terbaik untuk kangkung darat adalah perbandingan kompos dan tanah (3:1), sedangkan untuk jagung manis dan cabe keriting masing-masing adalah 1:3 dan 2:2.Kata kunci: aplikasi kompos, daun tanaman berkayu, kompos, pupuk organik

Shorea henryana - JENIS MERANTINON REKALSITRANT Soetisna, Usep; Priadi, Dody
BERITA BIOLOGI Vol 7, No 5 (2005)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Shorea henryana - a member species of Dipterocarpaceae known as white meranti. Ecologically distributed on lowland Dipterocarp forest and flourishing in coastal areas. A fairly large tree up to 40 m tall with bole up to 115 cm diameter. Seeds were dispatched from Thailand and showing 72% germination and initial moisture content of 20.3%. First lot of seeds were dried to moisture content 12.5%, 9.4% and 6.1% respectively. Germination of seeds dried to 6.1% m.c. was still relatively high (68%). Contrary to the desiccation resistance, however, the dried seeds seemed not to withstand relatively low temperature for Shorea species, i.e. 14-16 C. Further study will be needed as to investigate a proper storage treatment for this important woody species.

Seedling Production of Pak Choy (Brassica rapa L.) using Organic and Inorganic Nutrients Priadi, Dody; Nuro, Fiqolbi
Biosaintifika: Journal of Biology & Biology Education Vol 9, No 2 (2017): August 2017
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v9i2.8537

Pak Choy or Bok Choy (Brassica rapa L. var. chinensis) is one of favorite Chinese leafy vegetable for various dishes in Indonesia. In this study, it was used as a plant model to identify the appropriate organic hydroponic nutrient solution for leafy vegetable seedling production. The seed was sown on rock wool slabs submerged with 200 ml of a nutrient solution containing biofertilizer of Beyonic StarTmik@Lob (0, 25, 50, 75, and 100%). commercial hydroponic solution (0, 25, 50, 75, and 100%) and its combination (25, 50, and 75%). The experiments were arranged in a CRD. Meanwhile, the obtained data was analyzed using ANOVA followed by DMRT. The relationship among growth parameters was observed using Pearson correlation analysis. The result of the study showed that the combination of organic and inorganic nutrient (25% Beyonic StarTmik@Lob and 75% commercial hydroponic solution) resulted in the highest seedling growth parameters and leaf indices as well as the perfectly positive correlations among growth parameters. This result indicated that the use of organic nutrient alone was not appropriate for hydroponic seedling production of Pak Choy. Therefore, further study needs to be done to identify the hydroponic solution without inorganic nutrients towards the organic vegetable production.

Characterization of Carambola (Averrhoa carambola L.) Plant Collection of Cibinong Plant Germplasm Garden Based on Phenotypic and Genetic Characters Priadi, Dody; Perdani, Ambar Yuswi; Sulistyowati, Yuli; Pohan, Fiqolbi Nuro; Mulyaningsih, Enung Sri
Biosaintifika: Journal of Biology & Biology Education Vol 8, No 1 (2016): March 2016
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v8i1.5199

Indonesia as a rich biodiversity country has many superior fruit plant germplasms such as sweet star fruit or carambola (Averrhoa carambola L.). Some varieties of carambola which collected at the Germplasm Garden of Research Center for Biotechnology-LIPI have been used for parent trees of fruit plant production. Therefore, they have to be characterized both phenotypically and genetically. The objective of the study was to analyze the relationship between eight varieties of carambola i.e. Malaysia, Penang, Rawasari, Bangkok, Sembiring, Dewabaru, Demak and Dewimurni at the germplasm garden based on phenotypic and genetic characters. Phenotypic characters were observed directly in the field, whereas genetic characters were observed with RAPD markers using 10 primers. Phylogenetic analysis was done using NT-SYS software showed that there were three clusters of carambola varieties. Meanwhile, Malaysia and Penang varieties have closed relationships (96%) compared with the other varieties. The result of the study would be dedicated to updating and completing the existing fruit plant collection database of Plants Germplasm Garden.

APLIKASI TEKNIK ENKAPSULASI PADA BENIH SENGON (Paraserianthes falcataria) Priadi, Dody
Teknologi Indonesia Vol 33, No 2 (2010)
Publisher : LIPI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jti.v33i2.23

Seeds were encapsulated using materials containing nutrients in order to survive on a deforested land after spreading by aeroseeding technique. Sengon (Paraserianthes falcataria) seeds from Bogor, Tasikmalaya and Garut were encapsulated using mixture of soil, rice bran, tapioca fl our with compost made from leaf waste and manure (3:1) as a nutrients source. Seeds with a good appearance were tested for the moisture content and stratifi ed prior to germination test on tissue paper and grassy and sandy soil to determine the initial germination. Results of initial seeds germination showed that the highest germination (61.7%) on grassy soil obtained by the seeds from Cianjur, while the lowest (39.0%) obtained by seeds germinated on sandy soil. Seed stratifi cation prior to germination causes the capsule damage and early germination. Encapsulated seeds failed to germinate in germination chamber although the capsules already broken. The highest germination percentage (24.7%) and plant height (3.9 cm) obtained from the encapsulated seeds containing media G (100 g soil + 100 g compost + 100 g tapioca fl our) with the exception for total compound leaves and roots. Seeds encapsulated using rice bran causes microbial contamination of seed capsules so that failed to germinate. This study showed that the tapioca fl our was absolutely necessary as an adhesive agent within encapsulate components with seeds, while the compost can enhance plant growth. Contrary the rice bran causes microbial contamination on seed capsules.

Effects of Compost Type and Rootstock Length on Fruit and Vegetable Seedlings Growth in the Nursery Priadi, Dody; Mulyaningsih, Enung Sri
Biosaintifika: Journal of Biology & Biology Education Vol 8, No 3 (2016): December 2016
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

The study was conducted to develop local fruit plants and to improve vegetable production at the Plant Germplasm Garden of RC for Biotechnology-LIPI. Carambola (Averrhoa carambola), durian (Durio zibethinus) and guava (Psidium guajava) were propagated vegetatively (grafting and budding) and were grown on the media containing grass compost (K-1), spent compost of paddy straw mushroom (K-2) or oyster mushroom (K-3) in combination with rootstock length of 45-55 cm (TB-1), 65-75 cm (TB-2) and 75-90 cm (TB-3). Tomato (Lycopersicum esculentum) and kangkung (Ipomoea reptans) were grown on the same media in the screen house. The highest survival rate of grafted durian (71.56%) was obtained from TB-3 grown on K-1 by budding technique. Meanwhile, the highest survival rate of carambola (68.89%) was obtained from TB-1 by grafting technique. The budding technique was not appropriate for guava (0 % of survival). Application of K-3 of 3 kgs on tomato plants resulted in the highest fresh weight, length, and diameter of the fruit, and the highest of plant height, total leaves, and biomass of kangkung. The study is expected to be applied to improve fruit plant growth and survival rate as well as a high production of organic vegetable.How to CitePriadi, D., & Mulyaningsih, E. S. (2016). Effects of Compost Type and Rootstock Length on Fruit and Vegetable Seedlings Growth in the Nursery. Biosaintifika: Journal of Biology & Biology Education, 8(3), 301-307.

USE OF GRASS AND SPENT MUSHROOM COMPOST AS A GROWING MEDIUM OF LOCAL TOMATO (Lycopersicon esculentum Miller) SEEDLING IN THE NURSERY Priadi, Dody; Arfani, Agus; Saskiawan, Iwan; Mulyaningsih, Enung Sri
AGRIVITA, Journal of Agricultural Science Vol 38, No 3 (2016): OCTOBER
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v38i3.671

The objective of this study was to investigate the response of local tomato (Lycopersicon esculentum Miller) seedlings growth on media containing grass and spent mushroom compost in the nursery. The grass compost (GC) was produced by Research Center for Biotechnology-LIPI. Whereas the spent oyster mushroom (Pleurotus ostreatus) compost (OC) and spent paddy straw mushroom (Volvariella volvacea) compost (PC) were produced by Research Center for Biology-LIPI. Growing media of tomato seedling was a mixture ofÂ top soil (TS), rice husk charcoal (HC), grass compost (GC), spent oyster mushroom compost (OC) and spent paddy straw mushroom compost (PC) in the ratio of 1:1 as follows:Â TS+HC, TS+HC+GC, TS+HC+OC and TS+HC+PC. The experiments were arranged in Completely Randomized Design with three replications. Growth parameters observed i.e. seedling growth, dry weight production and leaf indices. Results showed that growing medium containing spent paddy straw mushroom compost was the best to improve seedlings growth in general. However, the lowest specific leaf area (SLA) and leaf area ratio (LAR) indices were obtained by the seedlings on the medium without compost. Correlation analysis showed that highest correlations were recorded for the TS+HC+OC medium. The tomato seedling growth was improved on the media containing compost in general.

Production Improvement of M1 Generation Garut (Maranta arundinacea) Rhizomes through Gamma Radiation Mutation Deswina, Puspita; Priadi, Dody; Paradisa, Yashanti Berlinda; Anggraheni, Yuliana Galih Dyan; Mulyaningsih, Enung Sri; Perdani, Ambar Yuswi; Indrayani, Sri
Biosaintifika: Journal of Biology & Biology Education Vol 13, No 3 (2021): December 2021
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v13i3.31383

Garut (Maranta arundinacea L.) is a tuber containing flour with a low Glycemic Index (IG) suitable for diabetics and other degenerative diseases. It needs to be developed to reduce the dependence on imports or to substitute wheat flour. The objective of the study was to obtain superior arrowroot seedlings and observe the effect of gamma-ray irradiation on the density and position of stomata on arrowroot leaves. In this research, the irradiation of five arrowroot accessions of second-generation (MV1) with gamma rays (0, 10, 20, 30, 40, and 50 Gray) was carried out to obtain mutants with superior character so that they could be used as parent plants for arrowroot flour production. The treatments administered were arrowroot accessions (V), gamma-ray radiation dose (R), and their interaction. The qualitative and quantitative characters on plant characteristics, tuber production, and arrowroot leaves' stomata were observed. The research results showed that increased production is primarily for 25-Pandeglang accession (808.33 grams) and 10 Gray (800.00 grams) of gamma ray radiation treatment. It is expected that this accession can be released as a new variety candidate after subsequent selection and evaluation in a further generation. Moreover, the dose of gamma-ray radiation is inversely proportional to the number of stomata, which will increase the photosynthesis, thus increasing the number of tubers produced.

Effects of Compost Type and Rootstock Length on Fruit and Vegetable Seedlings Growth in the Nursery Priadi, Dody; Mulyaningsih, Enung Sri
Biosaintifika: Journal of Biology & Biology Education Vol 8, No 3 (2016): December 2016
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v8i3.7292

The study was conducted to develop local fruit plants and to improve vegetable production at the Plant Germplasm Garden of RC for Biotechnology-LIPI. Carambola (Averrhoa carambola), durian (Durio zibethinus) and guava (Psidium guajava) were propagated vegetatively (grafting and budding) and were grown on the media containing grass compost (K-1), spent compost of paddy straw mushroom (K-2) or oyster mushroom (K-3) in combination with rootstock length of 45-55 cm (TB-1), 65-75 cm (TB-2) and 75-90 cm (TB-3). Tomato (Lycopersicum esculentum) and kangkung (Ipomoea reptans) were grown on the same media in the screen house. The highest survival rate of grafted durian (71.56%) was obtained from TB-3 grown on K-1 by budding technique. Meanwhile, the highest survival rate of carambola (68.89%) was obtained from TB-1 by grafting technique. The budding technique was not appropriate for guava (0 % of survival). Application of K-3 of 3 kgs on tomato plants resulted in the highest fresh weight, length, and diameter of the fruit, and the highest of plant height, total leaves, and biomass of kangkung. The study is expected to be applied to improve fruit plant growth and survival rate as well as a high production of organic vegetable.How to CitePriadi, D., Mulyaningsih, E. S. (2016). Effects of Compost Type and Rootstock Length on Fruit and Vegetable Seedlings Growth in the Nursery. Biosaintifika: Journal of Biology Biology Education, 8(3), 301-307.

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