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PEMBERIAN KOMBINASI PUPUK DAUN GANDASIL D DENGAN PUPUK NANO-SILIKA TERHADAP PERTUMBUHAN BIBIT MANGROVE (Bruguiera gymnorrhiza) Widi Hastuti; Erma Prihastanti; Sri Haryanti; Agus Subagyo
Jurnal Akademika Biologi Vol. 5 No. 2 April 2016
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Increased damage to mangrove forests are increasingly threatened mangrove making function is reduced. Sustainability of mangrove forest areas depend on seedlings. Mangrove Nutrition is important, especially during the breeding. The addition of fertilizer leaves by spraying the leaves can maximize fertilizer efficiency. Dry environmental conditions and high stress on the lives of mangroves to make silica used in improving the sustainability of mangrove. This research aim to analyze the effect of the combination of Gandasil D leaf fertilizer and nanosilica fertilizer and analyze the optimal concentration of combination Gandasil D leaf fertilizer and nanosilica fertilizer  in mangrove plant seeds (Bruguiera gymnorrhiza) growth. Research conducted with Complete Random Design with one factor. There are 6 treatments: control, leaf fertilizer 75% + 25% Nanosilica, leaf fertilizer 50% + 50%, leaf fertilizer 25% + 75% Nanosilica, Nanosilica 100%, leaf fertilizer 100%. The experiments  was conducted with 5 replicates. The parameters observed, amount of leaves, leaf area, high of plants, amount of chlorophyll and leaf color. Supporting parameters include temperature, pH, moisture and air. Analysis of the data used is ANOVA followed by further test of Duncan Multiple Range Test (DMRT) at the 95% significance level. The results indicate that the combination of leaf fertilizer and Nanosilica effect on growth (Bruguiera gymnorrhiza). The combination of optimum fertilization in increasing growth that is 50% leaf fertilizer and 50% Nanosilica. Keywords: mangrove, Bruguiera gymnorrhiza,  Gandasil D leaf fertilizer, nanosilika fertilizer
Perkecambahan Biji Dan Pertumbuhan Bibit Batang Bawah Karet (Havea brasiliensis Muell Arg.) Dari Klon Dan Media Yang Berbeda Devi Sara; Munifatul Izzati; Erma Prihastanti
Jurnal Akademika Biologi Vol. 3 No. 4 Oktober 2014
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Rubber tree is an economical plant because of its latex production which is used as raw materials in rubber industries. The most important steps in rubber tree cultivation are germination and nurseries of stock for the grafting. The aims of the study to investigate seed germination from  3 types of clone and stock growth from different clone and plant media. The research consists of two steps: 1. to investigate seed germination from 3 types of clone, 2. to investigate growth of stock rubber on different clone and plant media for 30 days. The study design used completely randomized design (CRD) with 4 repetition. The first factor was plant media (soil, soil + manure, soil + liquid fertilizer, soil + ash). Second factor was seed clone (PB 260, GT 1, BPM 24). The pameter measured were germination percentage, stem height, root length, leaf number, leaf area, dry and fresh weight. Collected data were analyzed by Analysis of Variance (ANOVA) continued by Duncan Multiple Range Test (DMRT) in 95% significance difference. The study resulted that BPM 24 clone had the highest germination percentage on 74,9%, while PB 260 is 71% and GT 1 is 63,6%. The types of clone affected on growth of stock rubber tree. The PB 260 clone had better stem height, root length, leaf number, leaf area, dry and fresh weight parameter than the other clone. Plant media had no effect on all parameters. There is no interaction between plant media clone in affecting to growth of stock rubber.Key Words: Clone, PB 260, GT 1, BPM 24, manure, liquid fertilizer
Pengaruh Kombinasi Pupuk daun dan Nano silika terhadap Pertumbuhan Anggrek (Dendrobium sp.) pada Subkultur secara In Vitro Imroatul Khasanah; Erma Prihastanti; Endah Dwi Hastuti; Agus Subagio
Jurnal Akademika Biologi Vol. 5 No. 3 Juli 2016
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Orchid is one of the horticulture commodities that are very important in international trade. The problem that is commonly found in the plant tissue culture is hyperhydricity which causes the growth of plant to be too slow. Which is also a problem in acclimatization. Leaf fertilizers contain macro and micro nutrient that promote plant growth. Nano silica is a nutrient which is needed by monocotyl plants to support growth and prevent deficiency or poisoned nutrient. The aim of this research is to know the effects the combination of leaves fertilizer with nano silica and know optimal concentration of  leaves fertilizer and nano silica combination to growth of orchids (Dendrobiumsp) in subculture. This research used Completely Randomize Factorial Design (CRFD) (4x2) with four replication. First factor is leaves fertilizer (G) consists of four extent that is G0: 0,000 g/l; G1: 0,250 g/l; G2: 0,375 g/l; G3: 0,500 g/l. Second factor is nano silica (N) that consists of two extent that is N0: 0 ppm; N1: 20 ppm. The parameters which were measured in this research are number of leaves, plant height, number of roots, and the number of shoots. The data were analyzed by Analysis Of Variance (ANOVA) and continued with Duncan’s Multiple Range Test (DMRT) in extent 95%. The results of this research show that there are effects of interaction between leaves fertilizer and nano silica to the amount of roots. Leaves fertilizer does not really affect the orchid but it tends to increase plant height, the amount of shoots and orchid performance. Nano silica does not really affect the orchid but it tends to increase the amount of leaves, plant height and orchid performance. Keyword: Growth, subculture, concentration, leaves fertilizer, nano silica
PENGARUH KOMPOSISI MEDIUM PERENDAM TERHADAP MASA KESEGARAN BUNGA POTONG KRISAN (Chrysanthemum morifolium R.) Desi Arisanti; Erma Prihastanti; Endang Kusdiyantini
Jurnal Akademika Biologi Vol. 2 No. 4 Oktober 2013
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Chrysanthemum morifolium is a cut flower with high economic value, however this flower has relatively short freshness period, thus it is necessary to use soaking solution by adding shredded basil leaves extract solution and carrageenan hydrogel material in it. Hydrogel serves as the water provider and energy substrate for respiration process of chrysanthemum. The basil leaves extract works as anti-bacterial and anti-fungal. The soaking is done to extend the freshness period of the chrysanthemums. This study aims to describe the effect ofthe composition of basil leaves extract and carrageenan hydrogel material on soaking medium to the freshness period of chrysanthemum, also to study the microorganism growth on the soaking medium. This research uses Completely Randomize Design on factorial pattern with two factors. First, Hydrogel Concentration (H): without hydrogel, 500 ml of water (H0); 10 g of carrageenan hydrogel, 400 ml of basil solvent (H1); 10 g of carrageenan hydrogel, 500 ml of basil solvent (H2); 10 g of carrageenan hydrogel, 600 ml of basil solvent (H3). Second, basil leaves extract (K): without basil leaves extract, without hydrogel (K0); 125 g/l of basil leaves extract (K1); 250 g/l of basil leaves extract (K2); 375 g/l of basil leaves extract (K3). This research uses 16 treatments 3 replications. The analysis is done by applying ANOVA, followed by Duncan’s test at the significance level of 95%. The research parameter includes the blooming flowers percentage, freshness period of spray chrysanthemum, and the condition of the soaking medium. The findings show that the composition of 400 ml of  250 g/l concentration of basil leaves extract, and 10 g of carrageenan hydrogel can extend the freshness period of chrysanthemum by 12.67 days, and prove that some microorganisms grow in the soaking medium. Keywords: spray chrysanthemums, soaking medium, basil leaves extract, carrageenan hydrogel, freshness period.
KEANEKARAGAMAN TUMBUHAN BERDASARKAN CIRI MORFOLOGI POLEN DAN SPORA DARI SEDIMEN TELAGA WARNA, DIENG, KAB. WONOSOBO, JAWA TENGAH Nurrahmah Azizah; Sri Widodo Agung Suedy; Erma Prihastanti
Jurnal Akademika Biologi Vol. 5 No. 1 Januari 2016
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Pollen and spore may be used to identify the name of plants because on pollen and spore there is an outter wall, called exine, which have specific structure and sculpture. This specific morphology of pollen and spore may be easily identified, therefore the name of plant itself may be known directly. The aim of this research is to find out the various of pollen and spore morphology of Telaga Warna sediment and the name of plant itself may be known,moreover the plant diversity and the plant which is dominant around Telaga Warna may be known as well. This research had been conducted with fetched the sediment sample from the edge of Telaga Warna, Dieng, preparation of sample were using chemical, and finally make microscopic preparation.Pollen and spore observed by some parameters: shape, size, polarity, symmetry, aperture, and sculpture. The information, furthermore, analyzed by making description of pollen and spore morphology and quantitative data. The result of this research reaveal that there are 34 kind of plants from pollen and spore observation. The amount of Pteridophytes is 53%, Non-Arboreal Pollen (NAP) is 29%, and Arboreal Pollen (AP) is 18%. The plant which dominant around Telaga Warna is Polypodiaceae, with the value of dominance index is 5,66. Its spore morphology has trilete aperture, heteropolar, bilateral symmetry, and the sculpture is psilate. The average of plant diversity temporally in Telaga Warna is low, with the average value of diversity index is 1,56, however the alteration of vegetation temporally in Telaga Warna is stable dynamics.Keywords: morphology, pollen, spore, Telaga Warna
Artikel Kajian PERANAN DAN POLA AKUMULASI PROLINE TANAMAN PADA ADAPTASI CEKAMAN KEKERINGAN Erma Prihastanti
Proceeding Biology Education Conference: Biology, Science, Enviromental, and Learning Vol 8, No 1 (2011): Prosiding Seminar Nasional VIII Biologi
Publisher : Universitas Sebelas Maret

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Abstract

ABSTRAK Para ahli klimatologi memperkirakan dampak pemanasan global akan menyebabkan terjadinya periode kekeringan yang lama. Periode kekeringan sering berasosiasi dengan peristiwa ENSO (El Nino Southern Oscillation). Dibanding dekade sebelumnya, peristiwa ENSO diramalkan akan lebih sering terjadi di masa datang.  Saat musim kering panjang dan berasosiasi dengan peristiwa ENSO sering diiringi oleh penurunan pertumbuhan bahkan kematian tanaman. Tanaman yang mengalami cekaman kekeringan akan berusaha untuk melakukan perubahan-perubahan fisiologi sebagai bentuk adaptasinya. Salah satu bentuk adaptasi tersebut adalah kemampuan tanaman untuk mempertahankan tekanan osmotik dengan mengakumulasi senyawa osmolit  sel sebagai respon terhadap perubahan potensial air dari lingkungan sel. Sebagai konsekuensi dari akumulasi ini, potensial osmotik sel lebih rendah dan cenderung untuk menjaga tekanan turgor. Proline bebas sering terakumulasi selama tanaman mengalami kekeringan yang disebabkan oleh aktivasi biosintesa  dan inaktivasi  degradasi proline. Seringkali peningkatan jumlah proline  dianggap merupakan indikasi toleransi terhadap  kekeringan. Namun demikian masih terjadi kontrovesi tentang fungsi proteksi dari akumulasi proline karena beberapa kasus menunjukkan jika terjadi  over produksi proline justru dapat berakibat buruk saat tanaman menghadapi kondisi cekaman kekeringan. Tulisan ini bertujuan mengkaji peranan dan pola akumulasi proline pada tanaman dalam menghadapi cekaman kekeringan.   Kata Kunci : Proline, pola akumulasi prolin, cekaman kekeringan
Nano-chitosan coating on maintaining the quality of postharvest chili pepper (Capsicum frutescens L.) Noor Laila Safitri; Erma Prihastanti; Sri Widodo Agung Suedy; Agus Subagio
Biogenesis: Jurnal Ilmiah Biologi Vol 9 No 2 (2021)
Publisher : Department of Biology, Faculty of Sci and Tech, Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/bio.v9i2.23524

Abstract

Chili pepper (Capsicum frutescens L.) is a horticulture product with a limited shelf life due to quality degradation following harvest. One method of preserving the quality of chili peppers can be evaluated by using nano-chitosan, which combine chitosan and sodium tripolyphosphate (STPP) in certain ratio. The purpose of this study was to determine the impact of nano-chitosan on maintaining the quality of C. frutescens L., the optimal ratio of chitosan to STPP for preserving the quality of C. frutescens L. after harvest, and the shelf life of C. frutescens L. treated with nano-chitosan after harvest. This study employed a completely randomized design (CRD) and included four treatments: P0 (control), P1 (0.2% nano-chitosan, 1:3 ratio), P2 (0.2% nano-chitosan, 1:4 ratio), and P3 (0.2% nano-chitosan, 1:5 ratio), which conducted for 16 days. Weight loss, water content, texture, color, and percentage of damage are the research variables in this study. The ANOVA test was used to examine the data, followed by the DMRT test. The results indicated that nano-chitosan could maintain the weight, water content, texture, and color of chili peppers. The optimal ratio of chitosan to STPP to retain the quality of postharvest C. Frutescens L. is 0.2% nano-chitosan (chitosan: STPP= 1:5), and nano-chitosan can maintain the quality of C. Frutescens L. for up to 16 days.
Pengaruh Jenis dan Konsentrasi Larutan Perendam Alami Terhadap Perkecambahan Biji dan Pertumbuhan Bibit Kelapa Sawit (Elaeis guineensis Jacq). A Amirudin; Endah Dwi Hastuti; Erma Prihastanti
Jurnal Akademika Biologi Vol. 4 No. 1 Januari 2015
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Oil palm (Elaeis guineensis Jacq) is one of the leading commodity Indonesian plantation product that has economic value International market. In the process of oil palm cultivation experience problems due to oil palm seeds have a hard endocarp and contain lignin content is high enough that it is difficult to germination. Purpose of this study the effect of the type and marinade solution concentration as well as the interaction between the type and concentration of  the  solution  marinade  for  seed  germination  and  seedling  growth  of  oil  palm  (Elaeis guineensis Jacq). This research is random full factorial design consisting of two factor 2 x 5. The first factor is the type of marinade: coconut water and cow urine, the second factor is the concentration of  the solution marinade. This study uses 10 treatments with 3 repetitions. Parameters observed that the percentage of germination, plant height, leaf number, leaf color, number of roots, fresh weight and dry  weight.  Analysis of the data used is Analysist of Variances (ANOVA) showed a significant effect if it continued with Duncan’ Multiple Range Test (DMRT) at the level of 95%. The results showed that the type of marinade effect on plantheight. The results showed that the percentage of seed germination is influenced by the concentration of soaking solution with the highest rates at a concentration of 75% was kind of marinade between coconut water and cow urine had no effect. Oil palm seedling growth is influenced by the type of solution shredded  coconut milk and cow urine concentration and interact with the marinade. Type shredded cow urine at a concentration of 75% to produce the highest seedling growth.Keywords: Oil Palm (Elaeis guineensis Jacq), Coconut milk, Cow urine,     Germination, Seed
PENGARUH JARAK TANAM PADA METODE LONGLINE TERHADAP PERTUMBUHAN DAN RENDEMEN AGAR Gracilaria verrucosa (Hudson) PAPENFUSS Ayu Sofiana Desy; Munifatul Izzati; Erma Prihastanti
Jurnal Akademika Biologi Vol. 5 No. 2 April 2016
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Gracilaria verrucosa is seaweed that is highly potential to be developed. One Factor that can affect on growth G.verrucosa  is farming method. The aim of this research is to study the effect distance in longline methods on growth and agar rendement. This research was designed by completely randomized design, which consists of 3 treatments. Each treatment was repeated six times. The treatment were P1 (Planting in distance of 15 cm), P2 (Planting in distance of 25 cm) and P3 (Planting in distance of 35 cm). Parameters measured were biomass, dry weight, absolute and spesfic growth rate and also agar rendement. Resulted data was analysized by analysis of variance with significance level is 5% (P = 0.05). Results showed, that in distance of 15 cm the biomass was 168,73 g, dry weight was 11,89 g, absolute growth rate was 9,81%, spesific growth rate is was 2,3 % and agar rendement was 11.06%. In distance of  25 cm the biomass was 179,91 g, dry weight was 14,85 g, absolute growth rate was 11,43%, specific growth rate was 2,6% and agar rendemen was 11,06%, while in distance of 35 cm the biomass was 167,83 g, dry weight was 13,34 g, absolute growth rate was 9,69%, specific growth rate was 2,21% and agar rendemen was 11%.  It can be concluded that in distance of 25 cm resulted in better productivity of Gracilaria verrucosa.  Keywords:    Gracilaria verrucosa, planting distance, longline, growth,  agar rendemen
PENGARUH CARA PEMUPUKAN PUPUK CAIR NANOSILIKA MELALUI MEDIUM & PENYEMPROTAN PADA PERTUMBUHAN SUBKULTUR BIBIT ANGGREK Dyah Ayu Kusuma Ningrum; Erma Prihastanti; Endah Dwi Hastuti; Agus Subagyo
Jurnal Akademika Biologi Vol. 5 No. 2 April 2016
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

One way to increase supply orchid seedlings by subculture. Subculture of orchids often have hyperhidrisition. Hyperhidrisition can be overcome by unsure silica. This study aims to determine the effect of different ways through spraying fertilizer with the addition of fertilizer in the medium and analyze the results of the most effective influence on the growth of subculture of orchids. The study was conducted using a completely randomized design (CRD) with a single factor nanosilica fertilizer treatment in the medium and through spraying and each treatment was repeated three times. The treatment in this study are as follows: liquid fertilizer nanosilica M0K0 = 0% in the medium, liquid fertilizer nanosilica M0K1 = 75% in the medium, liquid fertilizer nanosilica M1K0 = 0% through spraying and liquid fertilizer nanosilica M1K1 = 75% by spraying. The data obtained were analyzed by ANOVA significance level of 95%. The results showed nanosilica fertilizer through spraying and the medium Vacint and Went (VW) increased the growth of subcultures Dendrobium sp. Liquid fertilizer application nanosilica with a concentration of 75% through the subculture medium most effectively promote the growth of plantlets subculture Dendrobium sp. Keywords: Dendrobium sp., subculture, fertilization, spraying, nanosilica