MIKROORGANISME LOKAL DALAM PENGOMPOSAN PADA MUTULOBAK VAR. GREENBOW YANG DIPANEN BERBEDA

The use of local microorganisms in the composting process will influence the final outcome compost or different according to the dominant species of microorganisms contained in the local microorganisms. This indirectly will respond differently to the growth and quality of radish tubers produced. Formulation of the problem of the research is as follows: How is the interaction between the use types of microorganisms locally in the process of composting organic material and harvesting time in the cultivation of rapeseed for the quality of radish, what type of microorganisms local and harvest time how many days after planting gives the crop rapeseed best. The research was conducted in the greenhouse of the Faculty of Agriculture, Winaya Mukti University. Experimental approach using experimental design factorial randomized block design consists of the first factor of compost a wide treatment with different local microorganisms, consists of five levels, and the second factor of different harvesting time which consists of four levels that are repeated twice. The results showed local Microorganisms snails on composting give significantly different results on the length and weight of tuber tubers radish Var. Greenbow, while the quality of radish tubers obtained from harvesting time at the age of 53 HST

Pengaruh Dosis Pupuk Organik Cair Daun Lamtoro terhadap Pertumbuhan dan Hasil Tanaman Pakcoy (Brassica rapa l.) Varietas Nauli-F1

The research was conducted in Padasari Village, Cimalaka Sub-district, Sumedang District, from June to September 2018, located at an altitude of 600 m asl. The objective of experiment was to study the effect of dosage of lamtoro leaf organic fertilizer to growth and yield of Pakcoy (Brassica rapa L.) plant varieties Nauli-F1. The research was conducted by experimental approach through field experiment. The design used in the experiment was a simple randomized block design consisting of six treatments and four replications. The dose of liquid organic fertilizer treatment Lamtaro leaves consist of: A : 0 L Ha-1, B: 100 L Ha-1, C: 200 L Ha-1, D: 300 L Ha-1, E: 400 L Ha-1, and F: 500 L Ha-1. The result of experiment showed that the use of lamtoro liquid organic fertilizer gave a good effect on all observation variables. The dose of Lamtoro leaf organic fertilizer 500 L Ha-1 showed the best result an plant height, number of leaves, net weight per plant, net weight per plot, and the shoot root ratio

Sexual dimorphism related to growth in climbing perch Anabas testudineus

 ABSTRCT The phenomenon that often occurs in climbing perch culture (Anabas testudineus, Bloch) is a significant size difference between individuals of male and female those lead to high variation in culture yields. In addition to genetic factors, the difference possibly reflects the sexual dimorphism in this fish; female grows faster than male. This research was conducted to examine sexual dimorphism related to growth quantitatively. Sixty individuals of 45-days old juvenile derived from mating of five pairs broods were randomly picked up and reared individually in 20×20×100 cm3 net cages for 135 days. Fish were fed on commercial feed (30% protein) three times a day at 10% feeding rate. Body weight and body length were individually recorded every 15 days, sex was determined at the end of the experiment by surgering the fish and gonad was weighed to calculate gonadosomatic index (GSI). The results showed that growth and specific growth rate of female were 1.17 and 1.48 fold respectively higher than male. This result indicates that female monosex culture of climbing perch is highly promising. Keyword: dimorphism, growth, climbing perch, Anabas testudineus  ABSTRAK Salah satu fenomena yang sering dijumpai dalam budidaya ikan papuyu (Anabas testudineus, Bloch) adalah perbedaan ukuran yang mencolok antara individu jantan dan betina yang menyebabkan hasil panen ikan sangat bervariasi. Selain faktor genetik, perbedaan ini diduga disebabkan oleh adanya dimorfisme seksual terkait pertumbuhan. Penelitian ini dilakukan untuk menguji dimorfisme seksual terkait dengan pertumbuhan ikan papuyu secara kuantitatif. Benih ikan umur 45 hari hasil pemijahan lima pasang induk diambil secara acak sebanyak 60 ekor dan dipelihara selama 135 hari secara individu di dalam 60 unit hapa (20×20×100 cm3). Ikan diberi pakan komersial (protein 30%) tiga kali sehari sebanyak 10% bobot tubuh. Bobot dan panjang semua ikan dicatat setiap 15 hari sekali, jenis kelamin ditentukan di akhir penelitian dengan cara membedah, mengamati gonad, dan menimbangnya untuk menentukan indeks gonadosomatik (IGS). Hasil penelitian membuktikan adanya dimorfisme seksual terkait pertumbuhan pada ikan papuyu; pertumbuhan bobot mutlak dan laju pertumbuhan bobot harian ikan betina masing-masing 1,48 kali dan 1,17 kali lebih tinggi dibandingkan dengan ikan jantan. Hasil penelitian ini mengindikasikan bahwa pengembangan budidaya ikan papuyu monoseks betina prospektif untuk dilakukan. Kata kunci: dimorfisme, pertumbuhan, papuyu, Anabas testudineus

Pengaruh Lama Perendaman Kolkisin terhadap Pertumbuhan Planlet (Chrysanthemum morifolim R) Krisan Varietas Pasopati Cara In Vitro

Laboratory-time studies to determine the duration of immersion of colchicine against growth of planlet (Krrysanthemum morifolim R) chrysanthemum varieties of in vitro way inpatients. The experiment was carried out at the Plant Biotechnology Laboratory of the Faculty of Agriculture of the University of Winaya Mukti from July to September 2017. The environmental design using Randomized Completely Random Design (RAL) consists of six treatments with 4 replications including: A (without colchicine immersion), B (immersion colcisin 1 hour, C (2-hour colchicine immersion), D (3-hour colchicine immersion), E (4-hour colchicine immersion) and F (5-hour colchicine immersion). The results showed that the duration of immersion of kolkisin on chrysanthemum varieties of pasopati in vitro gave a significant effect on the observation of the number of leaves aged 2 MST, 4 MST, 6 MST and 8 MST, the number of books aged 4 MST, 6 MST and 8 MST, root length , the number of roots as well as the height of the planlet. Immersion of 1 hour colchicine had a better effect on the observation of leaf count of age 2 MST, 4 MST, 6 MST and 8 MST, number of books aged 4 MST, 6 MST and 8 MST, root length, root number and plantlet height

PENGARUH PENGGUNAAN NAUNGAN TERHADAP PERTUMBUHAN DAN HASIL DUA VARIETAS TANAMAN KACANG MERAH ( Phaseolus vulgaris L. )

The research aims to obtain varieties of red beans was tolerant oflow light intensity under this shade.The research implemented in the experimental garden UNWIM BojongSeungit campus, from late June to early September 2016, with a height of 850 meters above sea level and precipitation type C (Dampish ).The experimental design used was split plot design consisting of 16 treatments and 4 Deuteronomy .Treatment consists of two levels : size of the shade (P), p0 = 0%Shade, p1 = 50% Shade, p2 = 65% Shade, p3 = 75%Shade, and varieties (v), v1 = Garut and v2 = Tasik.The results of this experiment showed the effect of growth and different results in higher plants in shade 65% and 0% in the varieties of Garut and Tasik age 35 days after planting, number of leaves per plant and the number of branches per plant at 28 days after planting in the shade of 75%, the number of pods contents per plant and the number of pods per plant in the shade of 0% whereas 50% shade highest yield of dry grain weight per plant, weight of 100 grains of seed varieties Garut and percentage (%) number of pods per plant were highest in varieties Tasik  Varieties of Garut and Tasik are sensitive to shade 75%, moderate to 65% shade and still tolerant to shade 50%

STUDI KROMOSOM IKAN PELANGI (Melanotaenia Lacustris) [Chromosome Study of Rainbowfish (Melanotaenia Lacustris)]

Penelitian sitogenetika pada ikan pelangi (Melanotaenia lacustris) difokuskan pada pengungkapan keanekaragaman kromosom dalam hal jumlah, bentuk, dan karyotipenya. Penelitian dilakukan di Laboratorium Genetika dan Reproduksi ikan Fakuitas Perikanan dan 11 mu Kelautan IPB, pada bulan on Mei — Deseber 2000. Preparat kromosom dibuat dengan metode jaringan padat yang menggunakan larva ikan umur 10-30 hari. Analisis kromosom dilakukan setelah pewarnaan dengan larutan Giemza. Kromosom diploid ikan M. lacustris adalah (2N = 46). Karyotipenya menunjukkan 46 kromosom yang terdiri atas 9 pasang berbentuk submetasentrik (SM) (no. 1, 3, 6, 7, 8, 9, 10, 13, and 14); 3 pasang subtelosentrik (ST) (no. 4, 12, 22) dan 10 pasang telosentrik (T) (no. 2, 5, 11, 15, 16, 17, IB, 19, 20, and 21) dengan 1 ST dan 1 T pada no. 23. Dari basil tersebut diduga bahwa M, lacustris memiliki kromosom sek

PENGARUH TAKARAN PUPUK KANDANG AYAM DAN PHONSKA TERHADAP HASIL UBI JALAR VARIETAS CILEMBU

An experiment was carried out from May to October 2015 at Experimental Field of Agriculture Faculty Winaya Mukti University Tanjungsari Campus, at the altitude of 850 m above sea level,  Inceptisols soil order. The objective of these experiment was to study interaction effect of   Chicken manure and Phonska Rates on Yield of Sweet Potato Cilembu Variety. Experimental design used was a Randomized Block Design (RBD) in factorial pattern with 2 replications.  The fisrt factor named chicken manure rates (A), contain of 4 levels, named : a0 = without chicken manure,  a1 = 10 t ha-1,  a2 = 20 t ha-1, a3 = 30 t ha-1. Rates of Phonska (P) contain 4 levels, named : p0 = without Phonska,  p1 = 400 kg ha-1, p2 = 800 kg ha-1  p3 = 1.200 kg ha-1. Result of experiment showed that interaction between chicken manure and phonska rates was not significant on yield of sweet potato Cilembu variety.  Main effect of chicken manure rates and phonska rates were significant on plant dry weigt at one, two, three and four month after planting, weight of  first class tuber and total tuber plot-1, while the effect on number of tuber is not significant.  The optimum chicken manure rate was 28,87 ton ha-1 with maksimum first class yield  17,96 t ha-1, and optimum chicken manure rate  was 27,18 t ha-1 with total tuber yield 20,51 t ha-1. Tuber yield response toward phonska rates was linear.

Pengaruh Pupuk Organik dan Jarak Tanam Terhadap Pertumbuhan dan Hasil Padi pada Budidaya Metode SRI

This experiment was aimed to know the interaction between organic fertilizer and planting distance to growth and yield of rice cultivation with SRI method cultivation conducted in Gunungmanik Village Tanjungsari Subdistrict, Sumedang Regency, the experiment started from December 2009 until April 2010. The experiment design used was Plan of Plot Divided, with 12 treatment combinations consisting of the main plot of organic fertilizer (a1 = chicken manure a2 = sheep manure, and a3 = compost of market waste). The subplot is plant spacing (b1 = 25 cm x 25 cm, b2 = 30 cm x 30 cm, b3 = 60 cm x 30 cm x 30 cm, and b4 = 60 cm x 30 cm x 15 cm). experimental results show the interaction between organic fertilizer and plant spacing on growth and yield of rice on the cultivation of SRI method. The use of plant spacing of 60 cm x 30 cm x 15 cm, followed by provision of 10 tons ha-1 chicken cage gave the best growth against the number of tillers, the number of productive panicles per clump, the weight of 100 grains, and the weight of dry grain harvest per plot. The use of 60 x 30 x 15 spacing followed by 10 tons ha-1 chicken farming and 60 x 30 x 15 plant spacing followed by market composting of 10 tons ha-1, yielded the highest dry harvest grain

Pengaruh Dosis Limbah Biogas Sapi terhadap Pertumbuhan dan Hasil Tanaman Kangkung Darat (Ipomea reptans Poir.) Varietas Rajawali dan Ta Fung

This experiment aims to study the interaction and find the dosage of cow biogas waste that gives the best effect on the growth and yield of ground spinach plants of Rajawali and Ta Fung varieties. This experiment was carried out from July to September 2020, in the experimental garden of the Faculty of Agriculture, Winaya Mukti Tanjungsari University, Sumedang Regency. The experimental design used was the Split Plot Design which consisted of 10 treatments and 3 replications. The treatment consisted of 2 levels, namely the main plot in the form of Rajawali variety and Ta Fung variety, while the sub plot was in the form of a dose of cow biogas waste consisting of 0 tons. Ha-1, 5 tons.ha-1, 10 tons.ha-1, 15 tons. ha-1 and 20 ton.ha-1. The results of this experiment showed that there was no interaction between variety and cow biogas waste on all observed parameters, independently Variety had an effect on plant height at the age of 14 day after planting while cow biogas waste had an effect on fresh weight per plant and fresh weight per plot. Ta Fung variety gave the best plant height at 14 day after planting, while cow biogas waste with a dose of 15 tonnes.ha-1 gave the best fresh weight per plant and fresh weight per plot

Pengaruh Konsentrasi Pupuk Organik Cair Dan Takaran Pupuk Kandang Sapi Terhadap Pertumbuhan Dan Hasil Tanaman Selada (Lactuca sativa L.) Varietas Grand Rapids

The aim of this experiment was to study the effect of concentration liquid organic fertilizer and doses cow manure on the growth and yield of grand rapids variety of lettuce, carried out in the practice of Tanjungsari Sumedang SMK PPN, located at an altitude of 850 meters above sea level. The experiment starts from June 2018 to August 2018. The experimental design used was a Randomized Design facto pattern group consisting of two factors and repeated three times. The first factor is liquid organic fertilizer nasa (p) with 5 levels: p1 = 0 ml / liter of water, p2 = 1 ml / liter of water, p3 = 2 ml / liter of water, p4 = 3 ml / liter of water, p4 = 4 ml / liter of water. The second factor is cow manure (k) consisting of 4 levels, namely: k1 = 0 ton / ha, k2 = 5 ton / ha, k3 = 10 ton / ha, k4 = 15 ton / ha. The results of the experiment show: There was no interaction between liquid organic fertilizer    and cowshed fertilizer on observations of plant height, number of leaves, weight per plant, weight per sample, weight per plot and root volume in lettuce. The treatment of liquid organic fertilizer at concentrations of p3 (3,0 ml/liter of water) showed the best results on plant height, number of leaves, and yield of weight per plot and significantly different from observations of weight per plant and root volume. Cow manure showed no significant effect on all plant height, number of leaves, weight per plant, weight per sample, weight per plot and root volume in lettuce