Pengaruh Praperlakuan Dingin Antera terhadap Pembentukan Kalus Cabai Merah Keriting (Capsicum annuum L.) Pretreatment on the Callus Formation of Curly Red Chilli Pepper (Capsicum annuum L.)

The production of the double haploid plant in vitro through anther culture technique is a plant breeding technique used to obtain pure strain rapidly. A variety of pretreatment has been reported to induce callus and regenerate planlets efficiently. This study aims at describing the influence of cold anther pretreatment towards the callus formation of curly red chili pepper (Capsicum annuum L.). This research was conducted in the laboratory of Genetics and Breeding, Faculty of Agriculture and Animal Science, Universtas Islam Negeri Sultan Syarif Kasim Riau. The explants used are anther of local genotype of curly red chili pepper. The anthers are stored at low temperatures (4 °c) with different time intervals of 0, 24, 48 and 72 hours. The results showed that the percentage of highest callus formation was obtained at 24 and 72 hours length storage, ie 50%. Cold pretreatment of 72 hours anther storage results in a faster callus with a percentage of the highest yellowish white callus color of 17.65% and a compact structure. The cold pretreatment with 72 hours anther storage is the most optimal acceleration in the development stage of anther culture and induces te formation of curly red chili pepper (Capsicum annuum L.) local genotypes.

Profil GCMS Senyawa Kimia Ekstrak Metanol Isolat Cendawan Entomopatogen Beauveria Bassiana Dan Akar Cabai Sebagai Pemacu Pertumbuhan Cabai

The aim of this study was to identify the chemical compound methanol extract of entomopathogenic fungus Beauveria bassiana from insect walang sangit and the chemical compound roots of red chili plants that were able to stimulate the growth of chilli plants after being applied with entomopathogenic fungus B. bassiana through seed immersion inoculation using GCMS method. The chemical compound identified as a growth booster in B. bassiana fungus isolates from the insect walang sangit is an Acetic acid Ethanoic acid Ethylic acid Glacial acetic acid CH3COOH, Hexadecanoic acid, methyl ester (CAS) Methylpalmitate Uniphat A60, n-Hexadecanoic acid Hexadecanoic acid n-Hexadecoic acid Palmitic acid, Dianhydromannitol and Ergosta-5,7,22-trien-3-ol, (3.beta., 22E) - (CAS) Ergosterol (CAS), while the chili root contains Acetic acid Ethanoic acid Ethylic acid Glacials acetic acid CH3COOH, Hexadecanoic acid, methyl ester (CAS) Methyl palmitate Uniphat A60, n -Hexadecanoic acid Hexadecanoic acid Palmitic acid, 8, 11- octadecadienoic acid, methyl ester (CAS) METHYL 8, 11-OCTADECADIENOATE, (23S)-ethylcholest-5-en-3.beta.-ol.s It can be concluded that some of the chemical compounds in methanol extracts identified in chili roots have similarities with chemical compounds that exist in B. bassiana entomopathogenic fungus which are potential as stimulers of chili plant growth

Keragaan Pertumbuhan dan Produksi Beberapa Varietas Kedelai (Glycine Max L.) pada Gawangan TBM Kelapa Sawit

This research was aims to determine the growth and production performance of several soybean varieties (Glycine max L.) in the palm oil palm oil compartment. The specific objectives of this study are 1) to determine the growth and production performance of several soybean varieties grown in the oil palm gates of TBM. 2) Determine the morphological characteristics of the appearance of some soybean varieties. This research has been carried out in the Experimental Garden of the Faculty of Agriculture, Kuantan Singingi Islamic University for 4 months. This study used a Completely Randomized Block Design (RCBD) consisting of 5 treatment levels and 3 groups, so that 15 unit experimental units were obtained. The treatment level consists of A = Variety Demas 1, B = Dena Varieties 1, C = Argo Mulyo Varieties, D = Devon Varieties 1, E = Devon Varieties 2. The results of the study were statistically tested using SAS version 9.0. give real influence. Based on the results of further tests with Duncan Multiple Range Test (DMRT) at a level of 5%, the plant height parameter of Devon 1 variety was significantly different from other varieties, the total number of pod parameters of Demas 1 variety was significantly different from other varieties, the grain weight parameters and the weight of 100 grains of Devon 2 variety are significantly different from the varieties of Argo Mulyo, Devon 1, Dena 1, and Demas 1.

Dampak Kualitas Air Tanah Terhadap Kualitas Melon (Cucumis Melo L.)

Hydroponic cultivation of melon plants with a fertigation system using ground water is one of the cultivation technologies that is expected to improve the quality and production of crops. Fertigation technology (fertilizer and irrigation) using autopot is an irrigation system allow to provide irrigation water by self-watering system by not using electric power so that the fertigation system is more efficient. The purpose of this study was to determine the effect of the impact of groundwater quality on the quality of melon (Cucumis melo L.) plants. The research method used is descriptive method. The quality parameters of the melon used in this study were water content, carbohydrate, protein, fat, ash, vitamin C and sweetness (% brix). The results of research on ground water quality show that the quality of ground water used is included in the category of non-polluted, which means that the water has good quality. The results showed the quality of melon has an average value of 95.19% fruit water content, 1.99% carbohydrate content, 1.37% protein content, 0.88% fat content, 0.57% ash content, vitamin C 6 , 91%, and total dissolved solids (sweetness) 9.4 0brix. The quality of the melon is classified as low quality according to SNI 7883-2013. The results of the ground water quality and the quality of the melon shows if the ground water affects the quality of the melon plants.

Pengaruh Kompos Mucuna bracteata Dan Azotobacter Terhadap Pertumbuhan Dan Kadar Nitrogen Bibit Kelapa Sawit

Through the nursery process with certain treatments can be produced quality seeds. Application of Mucuna bracteata compost and Azotobacter on growing media in polybags is one alternative that expected to increase plant growth. This study aimed to determine the effect of M. bracteata compost and Azotobacter and its combination on growth and nitrogen levels of oil palm seedlings. This research was conducted at STIPAP Medan in December 2018 - June 2019 with a Factorial Randomized Block Design (RBD). Treatment compost (K) 3 levels ie K0, K1 and K2 and Azotobacter (A) with 3 levels are A0, A1 and A2. M. bracteata treatment had a very significant effect on seedling height, number of leaves, shoot dry weight and root dry weight. Azotobacter treatment did not significantly affect the parameters of observation, increasing levels of leaf N 13-15%. Interaction compost and Azotobacter treatment had no significant effect. The best treatment is the K2A2 of 1.2 kg of compost and 30 ml of Azotobacter each oil palm seedlings planted in the polybag.

Potensi Ekstrak Karamunting (Melastoma malabathricum L.) sebagai Insektisida Nabati untuk Mengendalikan Ulat Grayak (Spodoptera litura F.)

<h1>Spodoptera litura F. is one of the important pests in Horticulture commodities which can cause damage 80% and up to 100%. Karamunting (Melastome malabathricum) is a wild plant that grows in Tarakan City. This plant is known to contain secondary metabolites which are thought to have the potential to control pests. This study aims to determine the potential of Karamunting extract as a botanical insecticide material to control armyworms. This study uses a completely randomized design (CRD) method with 1 treatment factor, namely the concentration of Karamunting leaf extract. Potential extracts as botanical insecticides were tested by dye method using 4 concentrations, namely 0 (control); 500; 1000; 2000; 4000; and 8000 ppm. The results showed that Karamunting leaf extract was able to control armyworm pests. Giving extracts of 8000 ppm (P5) in feed caused the highest decrease in eating activity up to 41,2%, larval mortality up to 85%, and the highest mortality rate after 7 days of observation. Decreased feeding activity and larval mortality were thought to be influenced by the presence of phenol compounds, fatty acids, terpenoids, sterols and alkaloids identified in the extract. Thus, Karamunting leaf extract has the potential to be developed as an active ingredient in botanical insecticides to control armyworm.<strong></strong></h1>

Respon Pertumbuhan dan Produksi Tanaman Selada (Lactuca sativa L.) terhadap Pemberian Pupuk Kandang dan Mikroorganisme Lokal (MOL)

<h1>Organic matter contained in manure fertilizer function to improve soil physical properties, soil chemistry, and soil biology. Local microorganisms from banana weevils contained macro, micro nutrients and contained bacteria which will act as decomposers of organic matter.This research aimed to determine the effect of the combination of manure fertilizer and local microorganisms on the growth and yield of lettuce. The research was conducted on the land of the Faculty of Agriculture, Methodist University, Medan, in March - April 2016, using split plot design, with three replications, 9 combinations to obtain 27 plant plots of all combinations and replications was used in this study. The first factor tested was manure fertilization ie R1= given chicken manure 45 g plant^-1, R2 = given cow manure 45 g plant^-1 and R3= given goat manure 45 g plant^-1. The second factor tested was local microorganisms that was D1 = 30 cc l^-1 water), D2 = 40 cc l^-1 water and D3= 50 cc l^-1 water. The results showed that the treatment of types of manure and local microorganisms in general had a significant effect on the growth and production of lettuce plants. The provision of chicken manure as much as 45g plant^-1 (R1) and local microorganisms 50 cc l^-1 water (D3) gave a better response to the growth of plant height, number of leaves, amount of chlorophyll and wet lettuce better than other treatments.</h1>

Pengaruh Pemberian Kompos Blotong Limbah Pabrik Gula Dan Mikoriza Terhadap Pertumbuhan Bibit Kelapa Sawit (Elaeis guineensis Jacq)

Nursery success is one of the important things in the oil palm plantation business. Nurseries are the beginning of efforts to cultivate palm plants, so the nurseries must consider all the conditions that can affect the development of the growth of oil palm plants. One important requirement is to conduct nurseries that tend to be organic, which are environmentally friendly. The use of organic fertilizers and sustainable biological fertilizers is very important in increasing soil fertility, growth and crop yields. Organic fertilizer that used is sugar mill wasted blotong and biological fertilizer is mychorrhizal. To determine the effect of giving sugar mill waste blotong and mycorrhizal applications on P nutrient levels in the Main Nursery. This study uses factorial randomized block design method (RAK). First factor is blotong (B): B0= control, B1= 500 gr blotong/seed, B2= 100 gr blotong/seed. Second factor is Mycorrhizal (M): M0= control, M1= 10 gr mycorrhizal arbusculae/seed, M2= 20 gr mycorrhizal arbusculae/seed. 9 treatment combinations were obtained with 4 replications, so the total treatment was 36. Blotong compost application significantly affected palm seed height, canopy dry weight and root dry weight, while mycorrhizal application only significantly affected seed height. the combination between them two gives the best effect on B1M1 treatment.

PENGARUH PENINGKATAN DOSIS KALIUM DAN JENIS PESTISIDA NABATI TERHADAP PERSENTASE SERANGAN HAMA DAN PRODUKSI KENTANG DI SUMATERA UTARA

<h1>Potato production in Karo and Simalungun Regency of North Sumatra is severely limited by the high number of pest attacks, so that the use of pesticides is absolutely necessary. Increasing potassium doses and application botanical pesticides can be used as a strategy to reduce pest attacks on potatoes. This study aims to determine whether an increase in potassium dose and application of some botanical pesticides can reduce the percentage of pest attacks and then increasing potato production. Research was designed by factorial Randomized Block Design (RBD) with 2 factors, namely Potassium Dosage consist of 4 levels: K0 = Control; K1 = 100 kg / ha (30 g / plot); K2 = 150 kg / ha (45 g / plot); K3 = 200 kg / ha (60 g / plot). And the second factor is the type of botanical pesticide which consist of 3 levels, namely: N1 = 20 g Neem leaves/ liter of water; N2 = 20 g babadotan leaves/ liter of water; N3 = 20 g Kipahit leaves/ liter of water. Data were analyzed by analyzed of variance.</h1><h1>The results showed that an increase in potassium dosage did not significantly affect the percentage of pest attacks and plant production variables. Botanical pesticides have a significant effect on the percentage of pest attacks, but have not significant effect on crop production variables. The lowest percentage of pest attacks was obtained from the application of botanical pesticides from babadotan leaf extract. In general, the percentage of pest attacks in the category was very low (&lt;25%), so that not significantly affect to production variables.</h1>

Biomatriconditioning Benih dengan Rizobakteri untuk Meningkatkan Pertumbuhan dan Hasil Tanaman Sorgum (Sorghum bicolor L.)

<h1>The experiment was aimed to know the effect of seed biomatriconditioning with rhizobacteria to improve growth and yield of sorghum (Sorghum bicolor L.). The experiment was conducted in the Field of Animal Husbandry Agriculture Faculty, Haluoleo University from August up to November 2010. The experiment was arranged based on randomized completely design (CRD) which consisted of 5 seed biomatriconditioning with rhizobacteria treatments, namely: without seed biomatriconditioning (M0), seed biomatriconditioning with Bacillus sp. CKD061 + rice hulls charcoal (M1), seed biomatriconditioning with Bacillus sp. CKD061 + red brick powder (M2), seed biomatriconditioning with Pseudomonas fluorescens PG01 + rice hulls charcoal (M3), and seed biomatriconditioning with Pseudomonas fluorescens PG01 + red brick powder (M4). Every treatment was replicated 3 times, therefore, overall there were 15 experimental units. Data obtained were analized using analysis of variance and followed with Duncan’s Multiple Range Test. The result showed that seed treatment with biomatriconditioning using rhizobacteria gave significant effect in improving growth and yield of sorghum. Seed biomatriconditioning with sp. Bacillus CKD061 + red brick powder was the most effective treatment in increasing plant height, leaf area, dry weight of plant bomass, grain weight, and 1000 seed weight of sorghum.</h1>