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Journal : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

PERTUMBUHAN BIBIT POLIEMBRIONI JERUK SIAM (Citrus nobilis Lour.) ASAL KAMPAR Widianti '; Dyah Iriani; Fitmawati '
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 1, No 1 (2014): Wisuda Februari 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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Abstract

Siam orange (Citrus nobilis Lour.) from Kampar has a polyembryonic seed, thephenomenon of development of more than one embryo in a seed. One embryo derivedfrom the fusion of two gametes (sexual) and the other derived from nucellar cells(asexual). Polyembryonic seeds will produce apomictic seedlings that have resistance topests and diseases with a better root system that can improve the needs of seeds in citruspropagation of siam orange from Kampar. The aims of this study were to investigate thecharacteristics of poliembryonic seedlings and also to calculate the percentage ofpolyembryonic seedlings. Data was quantitatively analyzed by calculating thepercentage of polyembryonic and germination seedlings. The results showed that thepercentage of the germination seeds was 43.75% and the polyembryonic seeds was68.4% which consisted of two to three seedlings.
JOM FMIPA Volume 1 No. 2 Oktober 2014 450 RESPONS PERTUMBUHAN ANAKAN NYAMPLUNG (Calophyllum inophyllum L.) PADA KONDISI PENGGENANGAN DENGAN MEDIA TANAH MINERAL DAN TANAH GAMBUT Indah Permatasari; Siti Fatonah; Dyah Iriani
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 1, No 2 (2014): Wisuda Oktober 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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Abstract

The research on the growth response of nyamplung seedlings (Calophyllum inophyllum L.) with flooding in the mineral soil and peat soil had been conducted at the Laboratory of Botany, Department of Biology, Faculty of Mathematics and Natural Sciences, University of Riau, from December to January 2014. The purpose of this study was to test the ability of nyamplung to grow with flooding using the mineral soil and peat soil. This study used randomized block design with one factor (flooding) and five replicates, the height of inundation was 2 cm above the soil surface. The results indicated that nyamplung might grow in the mineral soil with flooding, the precentage of plant damage was 20% whereas in peat soil with flooding, nyamplung could not grow and 100% had plant damage.
PEMANFAATAN KIAMBANG (Salvinia molesta D. Mitch) UNTUK FITOREMEDIASI LIMBAH ORGANIK PULP DAN KARATS Iwan Simatupang; Siti Fatonah; Dyah Iriani
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 2, No 1 (2015): Wisuda Februari 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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Abstract

"> Paper industry produce water wastethat contain organic and inorganic compounds. The efforts to control the pollution caused by waste is carried out using phytoremediationsuch as the use of Salvinia molesta(kiambang). The purpose of this research was to improve the quality of water in liquid organic water and paper pulp. The study used a completely randomized design (CRD) with five dilution treatment 25%, 50%, 75% and 100% and control (0%) for 15 days. Data were analyzed using ANOVA and followed by DMRT at 5% level. The results showedthat kiambang grown on paper and pulp wastecould improve the quality of waste at 25%concentrations, withincreasing DO content from 5 ppm to 16 ppmabove DO content of nomal water. Kiambang plant could absorb organic compounds and improved the value of DO while BOD, COD and TSS didn’t reach the water quality standard yet for all treatments. Howerver, for 25% and 50% consentration gave a closer result to the water quality standard.
RESPONS ANAKAN TUMBUHAN NYAMPLUNG (Calophyllum inophyllum L.) PADA BERBAGAI PERIODE PENGGENANGAN Asma Sari; Siti Fatonah; Dyah Iriani
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 2, No 1 (2015): Wisuda Februari 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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Abstract

Nyamplung (Calophyllum inophyllum L.) is a plant that has many functions, almost all parts of the plant can be used and have high economical and ecological functions.The purpose of this study were to test the growth ability of nyamplung at various periods of flooding and observe the morphological adaptations due to this treatments.This research was carried out for 30 days using a randomized block design (RBD) with a single factor, i.e. period of flooding which consisted of 4 treatments as follow P0: control (no flooding), P1 5 days of flooding periods, P2 10 days of flooding periods, and P3 continuous floding. The flood height from the soil was 2 cm. The results of this study indicated that the flooding periods did not significantly affect the plant fresh weight, the plant height as well as the number of leaves.The flooding periods significantly affected the percentage of root growth and root fresh weight. The morphological adaptation of Nyamplung in the period of flooding was by forming lenticels.While the seedling on continuously flooding treatment also formed adventitious roots. The 4 month nyamplung seedling could grow at all of the flooding periods with injury index at 5, 10 day flooding periods and continuously flooding period were 0, 0.09 and 0.58, respectively.
EFEKTIVITAS PERENDAMAN TERHADAP NILAI KEKUATAN UYUNG SAGU (Metroxylon sagu) ASAL PULAU PADANG BERDASARKAN KARAKTER SERAT Tiara Maulidza Riyani; Fitmawati '; Dyah Iriani
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 1, No 2 (2014): Wisuda Oktober 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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Abstract

Padang island is one of the islands that has the high Sago germplasm (Metroxylon sagu) in Kepulauan Meranti, Riau Province. This region has abundant sago bark waste called sago uyung but it has not been used properly. Sago uyung potentially produce a strong and termite resistant wood that can be used as handcraft raw material. This study aimed to analyze the effectiveness of wood soaking in three water types to the strength of uyung spined-sago of Padang island based on fiber characters. The uyungs of spined-sago were collected from three different habitats of sago, i.e. peat habitat, transition zone of peat and clay habitat as well as clay habitat, and treated in three water types, i.e. peat, sea and fresh water. The measurement and observation of fiber characters used a maseration method. This result showed that based on the treatments, uyung that soaked on the sea water gave the best result due to the longest and widest fiber. Moreover, based on the types of habitat, uyung from the transition zone of peat and clay habitat had the longest and widest fiber. The interaction of uyung from the transition zone of peat and clay habitat with sea water soaking was more effective in producing a strong sago uyung.
RESPONS PERTUMBUHAN SEMAI LIMA KULTIVAR DURIAN ASAL KABUPATEN KAMPAR TERHADAP BERBAGAI PERIODE PENGGENANGAN Guspa Yuriza; Sujarwati '; Dyah Iriani
Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Vol 1, No 2 (2014): Wisuda Oktober 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam

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Abstract

Durian (Durio zibethinus Murr.) is a widely cultivated fruit crops in tropical region, especially in Indonesia. The nickname of this plant is King of tropical fruit. Kampar district is one of the largest producers of durian in Riau Province. Geographical location and high rain season of this region cause flooding, therefore Kampar often has periodic flooding. The purpose of this research was to determine the growth response of five cultivars of durian seedling from Kampar in various periods of inundation. Seedlings of five cultivar durian (Malukuik, Terong, Tembaga, Jantung and Kunyit) were given periodic inundation of 5 days and 10 days for 60 days with the same recovery period (5 days with 10 cm inundation height). The results showed that inundation 5 and 10 days significantly reduced all of the durian seedling growth with the observed parameters were the durian seedling height (52% and 70%), number of leaves (64% and 72%), total wet weight (27 % and 22%), root volume (43% and 33%), and root dry weight (45% and 38%). However the ratio of roots shoots increased while the interaction among durian cultivars did not show significant differences.