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Journal : Jurnal Akademika Biologi

PENGARUH PERENDAMAN DALAM AIR SAWAH TERHADAP PENURUNAN BIOMASSA DAN PERUBAHAN STRUKTUR ANATOMI KAPAS (Gossypium sp) DAN JERAMI PADI (Oryza sativa L) Eni Yuspika; Munifatul Izzati; Sri Haryanti
Jurnal Akademika Biologi Vol. 2 No. 1 Januari 2013
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Cellulose is a constituent component of plant cell walls. Cellulose is protected by lignin and hemicellulose, it is difficult to degrade so it is necessary to elaborate pretreatment component. Pretreatment is a crucial step to creation of lignocellulose-based bioethanol. Pretreatment serves to break up and remove lignin and damage to the crystalline structure of cellulose that makes unraveling cellulose into glucose. This study aims to determine the decrease in biomass and changes of anatomical structures on cotton and rice straw soaked in rice water. This research was conducted in the Laboratory of Biological Structure and Function of Plant Biology UNDIP FSM. The design used was using T-test analysis and descriptive data with the two treatments are soaking in distilled water and water field. Parameters observed decrease of biomass and structure changes ( macroscopic and microscopic). The results showed soaking rice in water significantly affect biomass decreased as much as 27.5% cotton and rice straw as much as 31.36%. Changes in the anatomical structure of the cotton that damages both sides of the cell wall, the lumen crushed and partially soluble, while rice straw damage on one side of the cell wall and partially soluble cell contents.Key words: biomass, anatomical structure, cotton, rice straw, rice water
Morfoanatomi Polen Flora Mangrove Di Pantai Banjir Kanal Timur, Semarang Titi Nurul Qodriyyah; Sri Widodo Agung Suedy; Sri Haryanti
Jurnal Akademika Biologi Vol. 4 No. 3 Juli 2015
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Indonesia has the largest mangrove area in the world that covering an area of 2.5-5 million ha. Indonesia's vast mangrove area has been declined by 50%. Locations that becoming sampling stations, namely East Flood Canal (BKT) undergo abrasion that caused water-logging in mangrove forest areas that affect the diversity of plants in it. Plant diversity can be learned through the pollen of plants. Morphology-anatomy can be used as additional criteria for identifying plant species. The aim of this study was to determine the diversity of plants and morphology-anatomy pollen of plants on the coast BKT. Sampling was conducted using roaming at both locations. Data were analyzed by making the description and classification. The results showed that mangrove forests in BKT have a diversity of plants as many as 9 species. Morphology-anatomy pollen of different species have a variety of shapes and sizes. Keywords: mangrove, morphology-anatomy, pollen, Semarang
PENGARUH NAUNGAN TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN BAWANG DAUN (Allium fistulosum L.) DI BANDUNGAN, JAWA TENGAH Ismi Alfii Anni; Endang Saptiningsih; Sri Haryanti
Jurnal Akademika Biologi Vol. 2 No. 3 Juli 2013
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Onions ( Allium fistulosum L. ) is a vegetable that is often consumed by public . People often consume on the part of young leaves . Onions production decreased during the rainy season . One way to increase the growth and production of onions by adjusting the light intensity that is appropriate . Shade is one effort intensity of the sun setting to the plant . The purpose of this research was to determine the effect of shade on the growth and production of onions . The research conducted at Sidomukti Village, Bandungan and laboratory BSF, FSM, Diponegoro University. The research design using the single factor RAL: shade . Data analysis using ANOVA followed by Duncan's Multiple Range Test Test ( DMRT ) confidence level 95 % . The parameters were  plant height , number of tillers , wet weight , dry weight , chlorophyll content , stomatal number . The results showed that the difference was not significantly different shade to the number of tillers , fresh weight , chlorophyll content , and the number of stomata , but showed significantly different results to height and plant dry weight . Paranet shade with 2 coats of 10950-24850 lux light intensity and give the highest production growth in height and plant dry weight. Keyword: onions, growth, production
UJI KUALITAS MADU PADA BEBERAPA WILAYAH BUDIDAYA LEBAH MADU DI KABUPATEN PATI Iffa Illiyya Fatma; Sri Haryanti; Sri Widodo Agung Suedy
Jurnal Akademika Biologi Vol. 6 No. 2 April 2017
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Honey is the natural sweet substance produced by honey bees from the nectar of flowers. Honey composition is very complex, it contains at least 181-200 different substances, hence the enormous benefits of honey within pharmaceutical industry, food, beverage, and aesthetics. Although the demand for honey in Indonesia has been increasing, there is still no honey quality certification labeled on its product. This study used honey from several beekeeping region in Pati regency which has not been certified. The research aims to analyze honey quality based on water content, acidity, and total sugar. The sampling was purposive sampling method in the three different districts in Pati Regency, those were Gembong District, Gunungwungkal District, and Tlogowungu District, because in general this area is the main honey producer as there are many beekeepers and there is still no honey quality information labeled on it. This research used a Completely Randomized Design (CRD) with 3 treatments (locations) 4 replications from different beekeeper in each region. The water content and total sugar used a refractometer and acidity used titration. The research found that there is a significant difference between honey quality from different beekeeping region. The water content is ranged from 24-27,8%, acidity 59,2-68,3ml NaOH/kg, and total sugar 70,6-74,5 oBx. The highest honey quality is obtained from Gembong District with water content 24%, acidity 59,2ml NaOH/kg, and total sugar 74,5oBx.Keywords: Apis mellifera, water content, acidity, total sugar.
Aktivitas Antioksidan Dan Nilai Gizi Dari Beberapa Jenis Beras Dan Millet Sebagai Bahan Pangan Fungsional Indonesia Adriamin Azis; Munifatul Izzati; Sri Haryanti
Jurnal Akademika Biologi Vol. 4 No. 1 Januari 2015
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

In recent time, there is a change in diet behavior of people. Food color is potential as antioxidant activity, such as rice and millet. These two type of grain are potentialy been used as functional food. This study is aimed to analyze antioxidant activity and nutrition content in several rice and millet. The antioxidant activity of Garcinia skin was used as control. The antioxidant activity was measured by DPPH method. This research was designed by descriptive quantitative. Parameters was measured including antioxidant activity, water content, ash, fiber, fat, and protein content. Resuls  from this study showed that red rice (Oryzanivara L.) has the highest antioxidant activity, as much as 95,05%. This antioxidant activity is 0.92% higher than Garcinia skin. The fiber content in red rice was also the highest, wich is 7,50%, wihie the protein content was 13,78%. The black rise, has content 13.58% of protein. Antooxidant activity of pearl millet (Pennisestumnglaucum) was 4.92%, and protein content as much as 13,57%. Panicummiliaceum has higher antioxidant activity (8,09%) and 11,21% of protein content. The fiber content of Pennisestumglaucumwas 9,33%, while Panicummiliaceumwas 5,75%.Keyword: Antioxidant, food, rice, millet
PENGARUH BERAT MEDIA DAN JUMLAH BIBIT TERHADAP PERTUMBUHAN DAN PRODUKSI KENTANG (Solanum tuberosum L.) DI DALAM POLYBAG Ulfah Ghina Fathiyyah; Munifatul Izzati; Sri Haryanti
Jurnal Akademika Biologi Vol. 6 No. 4 Oktober 2017
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Potatoes (Solanum tuberosum L) are one of the plants that become source of carbohydrates that help strengthening food. Potatoes are an annual crop that are not environmentally friendly because the potatoes can accelerate the rate of erosion. Therefore, a cultivation method is needed in polybag. Planting in polybag need to know the weight of media and seeds number for growth and production of potatoes running optimally. The purpose of this study is examine potato cultivation in polybag to improving potato growth and production. Parameters observed were plant height, wet weight of potato, tuber number, tuber weight and tuber weight/polybag. The treatments were given are media weight (V7: 7kg and V10: 10 kg) planting potatoes in land as a control and number of seeds (2 grains: 3grains and 4grains). The treatment in this research do with factorial completely randomized design in 9 different treatment and 3 repeat. Data was analyzed by Analysis of Variance (ANOVA) at 95% confidence level and continued with the test of Duncan Multiple Range Test (DMRT). The result showed that the interaction between media weight and number of seeds had significant effect on wet weight of plant. but media weight factor treatment had significant effect on plant height, wet weight of plant, tuber number and tuber weight . The optimal result is weight media 10 kg with 2 seeds number. The weight treatment of 10kg media with the number seeds of 2 resulted in the maximum growth and production.. Keywords: Potatoes, polybag, media weight, seeds number.
PENGARUH NAUNGAN MENGGUNAKAN PARANET TERHADAP PERTUMBUHAN SERTA KANDUNGAN KLOROFIL DAN β KAROTEN PADA KANGKUNG DARAT(Ipomoea reptans Poir) Ika Wulandari; Sri Haryanti; Munifatul Izzati
Jurnal Akademika Biologi Vol. 5 No. 3 Juli 2016
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Kangkung is one of the of the most favourite vegetable of Indonesian people. Most of indonesian including low-class to high-class like to consume it. Kangkung is often coocked as many different kind of dish such as, gado-gado, tumis kangkung, sayur bening, pecel. That is the proof from social side that Indonesian people can accept kangkung to become daily consumption. The purpose of this research is to analyze the effect of shade on growth, chlorophyll, carotenoid content of kangkung. The Parameters were plant height, number of leaf, root length, fresh weight of plant, number of stomata, chlorophyl content and β carotene content. This research was conducted at the Laboratory of the BSF Plant of Department of Biology Undip FSM. This research ks designed using shade as one factor RAL. Data analysis was using ANOVA at significance level of 95%, if there is significant difference than continued with Duncan Multiple Range Test (DMRT). The results show that different shade makes no significant different on plant height, number of leaf, fresh weight of plant, number of stomata, β carotene content but tend to increase yet decrease chlorophyll content. Using shade with two layers of paranet result in the lowest of chlorophyl content, but the most of β carotene content if compared to the others treatment.Keyword : shade, kangkung, chlorophyll, β carotene
PENGARUH PUPUK NANOSILIKA TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN KAPAS (GOSSYPIUM HIRSUTUM L. VAR. KANESIA 8) Atin Temon Sari; Sri Widodo Agung Suedy; Sri Haryanti
Jurnal Akademika Biologi Vol. 6 No. 2 April 2017
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Cotton (Gossypium hirsutum L.) is one of agricultural commodity which produces natural fiber as a raw material for the textile industry has a lot of constraints in its cultivation which not optimal, so the improvement of cultivation techniques by performing a balanced fertilizer can be done. Indonesian agricultural soil generally has low fertility rate and silica availability, so silica fertilization would be necessary. Silica causes leaves and stems of plant become upright so the photosynthesis will increased. Nanosilica that contains very small elements of silica which makes it easily absorbed by plants in order to increase growth and yield of cotton. This research aims to determine the effect of nanosilica fertilizer to the growth and production and also to know the effective amount of nanosilica concentration which will increase it of cotton Kanesia 8. The study design was using RAL with 5 different treatments of nanosilica fertilizer amount: 0 ml/L, 2.2 ml/L, 4.2 ml/L, 6.2 ml/L dan 8.2 ml/L with 5 repetitions. The data analysis was using ANOVA and if there is a significantly different then the analysis followed by further test of Duncan's Multiple Range Test (DMRT) at 95% of significance level. The results showed that nanosilica fertilizer with a concentration 2.2 ml/L increased the plant growth mainly at fresh weight of plant by 74.62% and dry weight of plant by 33.66% and it also increased the production of plant mainly in the percentage of fruit changed into cotton by 19.71% and dry weight of cotton by 0.98% than the control treatment.Keywords: nanosilica, growth, production, Gossypium hirsutum
Pengaruh Tingkat Kepadatan Lalu Lintas dan Waktu Pengamatan yang Berbeda Terhadap Ukuran dan Jumlah Stomata Daun Glodokan (Polyalthia longifolia .Sonn) Heru Puji Raharjo; Sri Haryanti; Rini Budi Hastuti
Jurnal Akademika Biologi Vol. 4 No. 1 Januari 2015
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Beberapa polutan yang berupa gas akan menyebabkan pencemaran udara. Adanya paparan polusi gas ini nantinya akan mempengaruhi kondisi tanaman glodokan (Polyalthia longifolia Sonn.) dalam jangka waktu tertentu. Tujuan penelitian ini mengetahui pengaruh waktu dan tingkat kepadatan lalu lintas terhadap ukuran porus dan jumlah stomata daun glodokan (Polyalthia longifolia Sonn.). Stomata merupakan tempat terjadinya pertukaran gas. Penelitian ini dilakukan pada bulan Januari sampai dengan Februari 2015 di area sekitar Kampus Universitas Diponegoro dan Laboratorium Biologi Struktur dan Fungsi Tumbuhan Fakultas Sains dan Matematika Universitas Diponegoro. Rancangan penelitian yang digunakan adalah Rancangan Acak Lengkap (RAL) pola faktorial dengan dua faktor yaitu waktu dan tingkat kepadatan lalu lintas. Penelitian ini menggunakan 6 perlakuan yaitu dengan tingkat kepadatan kendaraan tinggi, sedang dan rendah yang diamati pada pagi dan sore hari, masing-masing dengan 3 ulangan. Analisis data yang digunakan adalah Analysist Varians (ANOVA), apabila menunjukkan hasil yang signifikan akan dilanjutkan dengan uji Duncan’s Multiple Test (DMRT) pada taraf kepercayaan 95%. Parameter yang diamati yaitu panjang dan lebar porus stomata, jumlah stomata, ketebalan daun, luas permukaan daun dan parameter pendukung yaitu jumlah kendaraan yang melintas. Hasil penelitian menunjukkan bahwa kepadatan lalu lintas memberikan pengaruh nyata terhadap panjang dan lebar porus stomata, serta luas permukaan daun. Sedangkan pada jumlah stomata dan ketebalan daun tidak berpengaruh nyata terhadap tingkat kepadatan lalu lintas. Waktu pengamatan memberikan pengaruh terhadap panjang dan lebar stomata. Ukuran porus terbesar terjadi pada pagi hari.Kata kunci :Glodokan (Polyalthia longofolia Sonn.), polusi, jumlah, ukuran, stomata
Interaksi Antara Aplikasi Gelombang Suara Sonic Bloom dan Jenis Pupuk Cair Terhadap Jumlah dan Pembukaan Stomata serta Pertumbuhan Tanaman Jagung (Zea mays L.) Mentari Putri Pratami; Sri Haryanti; Munifatul Izzati
Jurnal Akademika Biologi Vol. 4 No. 1 Januari 2015
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Sonic bloom sound waves at a frequency of 3500-5000 Hz is able to stimulate the openedstomata which incrases the rate and efficiency of nutrients absorption that are applied through the leaves that are beneficial to the plant. By adding liquid organic and inorganic fertilizer as an effort to enhance the growth of cornplant. The purpose of this research is to know thesonic bloom application and liquid fertilizer to the growth of cornplant. This research was conducted in July until November 2014 in Laren village, sub district of Bumiayu, Brebes Regency and Laboratory structure and function of plant biology, FSM Diponegoro University. The arrangment used is the full factorial pattern of random design (RAL) with two factors, namely the sonic bloom application and liquid fertilizer. This research using six treatments, each of treatment are three replicates. The analysis of data used is Analysist of Variances (ANOVA), if it shows significant results then continued with the test duncan’s multiple test (DMRT)in fact 95% level. Parameters were observed such as number of stomata, the length and width of the opened stomata, height of plant, number of leaves,weight on fresh, weight on dry. The result showed that the application of sonic bloom real effect aganist the length and width of the opened stomata, number of leaves, weight on dry. By adding liquid fertilizer have the real effect of the lenght and width of the opened stomata, high of plants, weight on fresh, weight on dry. Furthermore giving of liquid organic fertilizer has more optimal result.Keywords :corn (Zea mays L.), sonic bloom, liquid fertilizer, stomata, growth.