PENGARUH JENIS AMELIORAN DAN DOSIS PUPUK SERBAGUNA (AGRODYKE) PADA PERTUMBUHAN RUMPUT GAJAH ODOT (Pennisetum Purpureum CV. Mott) DILAHAN GAMBUT

Odot elephant grass is a tropical forage forage that is easily developed, has high production and can be used as animal feed.This study aims to determine the effect of ameliorant types and organic fertilizer (Agrodyke) doses on the growth of odot elephant grass (Pennisetum purpureum cv. Mott) on peatlands. This study used a 3x3 factorial randomized block design (RBD) with 3 replications consisting of: (1) ameliorant type factor (A) consisting of 3 levels, namely: A1 =dolomite lime, A2 = Shellfish shell, A3 = Eggshell. (2) Agrodyke fertilizer dose factor (D) Consists of 3 levels, namely: D0 = 0 gram / plant, D1 = 10 gram / plant, D2 = 20 gram / plant. Observation parameters are the number of leaves, number of shoots, leaf length, plant height. The results of this study indicate that the type of ameliorant did not significantly affect the number of leaves, number of shoots, leaf length, and plant height at 2 MST, 4 MST, and 6 MST. Versatile fertilizer (Agrodyke) dosage significantly affected the number of leaves and plant height at 6 MST. But no significant effect on the number of leaves, number of shoots and plant height in 2 MST and 4 MST. Keywords: Peat, Ameliorant Species, Odot Elephant Grass, Agrodyke.

EFIKASI EKSTRAK BIJI JARAK PAGAR MORTALITAS LARVA PENGGULUNG DAUN (Lamposema indicate) PADA TANAMAN KEDELAI (Glycine max)

Soybean leaf roller known as Lamposema indicata. These insects attack the leaves of soybean plants by rolling up soybean leaves, that are launched 3-4 weeks after planting. The research aims to find out application of Jathropha curcas extract againts the mortality of soybean leaf roller pest (Lamposema indicata) and reduce damage to soybean plants. This research was conducted in the experimental garden, Faculty of Agriculture, Teuku Umar University in October to November 2019. The research was arranged in a non factorial Completely Randomized Design consisting of 4 levels with 5 replications. The factors experience is Jathropha curcas seed extract concentrate are E1 (control), E1 (20%, E2 (13.3% and E3 (10%). The results shows Lamprosema mortality shows the highest found in the E3 regulation, this is because in the E3 setting it has a high concentration so that the composition of the poisons contained is also high. Castor seed extract (Jatropha curcas) contains the composition of phorbol ester and cursin. Based on the observations displayed during the observation, namely changes in behavior, slowing movement of larvae, discoloration from clear green to pale yellow and compacting of the larva's body cavity.Keywords: Effectiveness of concentration, mortality, leafworm caterpillars

Cover dan daftar isi jurnal Ed April 2020

Jurnal Agrotek Lestari adalah media publikasi ilmiah yang membahas isu aktualdibidang agroteknologi yang memuat mengenai permasalahan yang berkaitan denganpengembangan mutu tanaman dan peningkatan produksi. Naskah yang akan dimuatmerupakan naskah yang dianggap sesuai dengan misinya. Jurnal Agrotek Lestari terbit dua kali setahun, pada bulan April dan Oktober mulai tahun 2015.

PENGARUH JENIS DAN DOSIS PENGAPURAN TERHADAP PERTUMBUHAN TANAMAN NILAM (Pogostemon cablin BENTH.) PADA TANAH GAMBUT

Patchouli (Pogostemon cablin Benth.) Is one of the essential oil producing plants of the Labiatae family. This study aims to determine the type and dosage of liming on the growth of patchouli on peat soils. And whether these two factors are real or not. Some of the ingredients used as ameliorant are shell ash, eggshell, and dolomite. This research was conducted in the experimental garden of the Faculty of Agriculture, Teuku Umar University, Meulaboh, Aceh Barat on 29 October 2019 to 13 February 2020. This study used a 3 x 3 factorial randomizedblock design with 3 replicates. Variables observed included changes in soil pH at 7 and 90 HSA, number of shoots and number of leaves at 15, 30 and 45 HST, plant height and number of branches at 60, 75 and 90 HST and leaf wet and dry weight at 90 HST. The results showed that the administration of liming species was able to influence the parameters of soil pH changes at 7 and 90 HSA, the number of leaves aged 45 HST, and the number of branches aged 90 HST and the best treatment was found on the shells of shells. The administration of liming dose is able to influence the parameters of soil pH changes at 7 HSA, plant height aged 60, 75 and 90 HST, number of branches aged 60 HST and the best treatment is found at a dose of 31.25 grams / polybag. Provision of liming type and dosage gives an interaction effect on soil pH changes at 7 HSA and the number of branches aged 60, 75 and 90 HST and the best treatment is found in clam shells with a dose of 31.25 grams / polybag.Keywords: Patchouli, Calcification, Peatland

PENGARUH JENIS DAN KONSENTRASI ZPT ALAMI TERHADAP PERTUMBUHAN STEK LADA (Piper nigrum L.)

Pepper (Piper nigrum L.) is a high economic value estate crop. Cuttings play animportant role in seedling pepper plants because it is more effective, an effort to overcome the failure in root growth in cuttings is to provide growth regulators. In its use, the effectiveness of ZPT is influenced by the type and concentration of ZPT used. This study aims to determine the effect of the type and concentration of natural PGR on the propagation of pepper by cuttings and the interaction of the two factors. This research was conducted in the experimental garden of theFaculty of Agriculture, Teuku Umar Meulaboh University from January to March 2020. The material used was cuttings of pepper plants obtained from pepper growers, shallots, bamboo shoots, banana weevil, alluvial soil, manure, polybags, hooded plastic and raffia. The tools used are: hoes, scissors, knives, gauges, fansticks, cameras, stationery and cameras. The design used in this study was a 3 x 6 factorial randomized block design (RBD) with three replications. Natural ZPT type factor (J) consists of three levels, namely: J1 = Shallot Extract, J2 = Bamboo Shoot Extract, J3 = Banana Weevil Extract. Variables observed were percentage of growth, number of shoots, number of leaves, root length, root wet weight and root dry weight. F test results on the analysis of variance showed that the type of natural PGR had a very significanteffect on root length. Significantly affect the growth potential, the number of shoots 45, 60 and 75 HST, the number of leaves 45, 60 and 75 HST, root wet weight and root dry weight. But no significant effect on the number of buds 30 HST and leaf number 30 HST. Keywords: Pepper cuttings, Type of ZPT, Concentration.

EFEKTIFITAS JENIS MEDIA TANAM TERHADAP PERKECAMBAHAN BENIH KACANG TANAH (Arachis hypogea L)

Peanuts (Arachis hypogaea L) are one of staple food after rice. In industry, peanuts used as material for made the cheese,butter, soap and cooking oil. For optimal growth of peanuts need the optimal condition, growing media are one of external factors who influence the growth of peanuts seed. This research was aimed to determine the various growing media on germination of peanut seeds. This research was implemented at UPTD BPSB Provinsi Aceh laboratory. Thisexperiment was conducted in a completely randomized design (CRD) with the sand media, cocopeat, husk media, husk charchoal, and sand malang as factors. The result showed that the growing media treatment affected the growth of germination peanut seeds. Cocopeat media was showed the better result of germination percentage and vigour index compared other treatment. The avarage of germination percentage and vigour index were 96% and 67,5%. Husk media showed the lower result based on the observed variables. Keyword : Peanuts, Growing Media, Germination

PENGARUH ANTAGONIS PEMBERIAN KULTUR CAIR Pseudomonas sp. SPESIFIK LOKASI MEUREBO DALAM MENEKAN Fusarium oxysporum PADA TANAMAN CABAI MERAH (Capsicum annum L.)

Red chili is one of the most widely cultivated horticultural plants. The problem that is often experienced by chilli farmers is wilting caused by Fusarium oxysporum. This disease attacks plant roots and has the potential to cause damage to almost all plant organs. One of the control of these pathogens that can be done is by utilizing biological control agents such as Pseudomonas sp.. This study aims to determine the effect of using crude extract of Pseudomonassp. in suppressing the onset of wilt caused by Fusarium oxysporum on Chili plants. This study used a non factorial randomized block design with a combination of dose and time of administration of Pseudomonas sp. crude extract. The results showed that variations of Pseudomonas sp. crude extract doses was not caused significant effect on the percentage of attacks and the intensity of Fusarium oxysporum attacks. While the best act for the application ofPseudomonas sp. crude extract is when planting. This is significantly different from the application 7 days before and after planting.Keywords: Fusarium wilt disease, Fusarium oxysporum, Pseudomonas sp., Antagonistic, Red Chili

PENGENDALIAN GULMA PADA TANAMAN KEDELAI DENGAN MENGGUNAKAN BEBERAPA WAKTU APLIKASI MULSA ORGANIK KIRINYUH (Chromolaena odorata L.)

Utilization of mulch could reduce competition between weeds and soybean crop for water, light, nutrient, maintaining temperature and humidity of soil to create better growth of soybean environment. Soybean crop had a critical period of weeds competition so that siam weed organic mulch should be applied to control weeds at certain time. The research aims to improve the yield of soybean crop that is influenced by application times of siam weed mulch. This study had defferent time of mulch aplications treatment such as at the time of planting, 7 days after planting (DAP), and 14 DAP. The results of this reserch showed that application times had not effected significantly at all parameter. The result also showed the earlier application time of siam weed organic mulch it was on planting time had decreased weed growth then increased yield of soybean. Keywords: Weed, soybeans, mulch, application time

UJI POLIMORPIK DAN HETEROZIGOSITAS PADA PROGENI F4 KEDELAI (Glycine max (L.) Merril) TAHAN SALIN DENGAN MENGGUNAKAN MARKA SSR (Simple Sequence Repeats)

SSR marker has some merits such as quickness, simplicity, rich polymorphism and stability, thus being widely applied in genetic diversity analysis, molecular map construction and gene mapping. the purpose of this study was to determine polymorpic test and heterozygosity in F4 soybean (Glycine max (L.) Merril) progeni saline resistant characters using SSR (Simple Sequence Repeats) markers. This research was conducted in Biomolecular Laboratory, Socfindo Seed Production Laboratory (SSPL), Kebun Bangun Bandar Village Martebing District Dolok Masihul Regency Serdang Bedagai on December-May 2017. The number of samples were used 44. The five SSR primers (QS080465, QS1101, QS1112, QS100011, and Sat_091) used were specific primers, with a band pattern that was clearly visible around one or two bands. The percentage of polymorphic primers (PLP) of these three populations is high, all populations with a PLP of 100% of the saline resistant character. The effective allele number (Ne) of 7,160 for the progeny population is lower than the number of observed alleles (Na) of 10,000 which means that many progeny individuals are homozygous. The expected heterozygosity (He) value of 0.854 in the progeny population was higher than the observed heterozygosity (Ho) value of 0.027. The overall average observed heterozygosity (Ho) was 0.009 lower than the overall expected heterozygosity (He) of 0.61. This means that each character has a low heterozygosity.Keywords: Progeny F4, soybean, SSR, saline resistant, polymorphic, heterozygosity

UJI KETAHANAN PADI LOKAL POTENSIAL ASAL BARAT-SELATAN ACEH TERHADAP PENYAKIT HAWAR DAUN BAKTERI

Aceh Province has many local varieties that are still cultivated by farmers, especially in the South-West Region of Aceh, the local rice needs to be identified and used as a source of genes in the assembly of new improved varieties to support food security and sustainable agriculture. Bacterial leaf blight (HDB) is one of the limiting factors in rice production. HDB disease is caused by Xanthomonas oryzae pv. oryzae (Xoo), which can reduce rice yield by 30-40%. However, the potential of these varieties as sources of resistance genes against HDB has not been evaluated. This study aims to determine and obtain the potential genotypes of local rice in the West-South Region of Aceh that are resistant to Bacterial Leaves Disease. The research was carried out at the Experimental Garden of the Faculty of Agriculture, Teuku Umar University, Meulaboh, West Aceh from January to completion. The research was carried out starting from the treatment and seeding, preparation of planting media, planting, observation variables: Plant height and number of tillers per age 60 HST, incubation period and length of the observed lesio: 21 HSI: Test results of potential local rice resistance in the West- South Aceh obtained 9 genotypes that are resistant to bacterial leaf blight. The genotypes are used as genetic sources for assembling new high yielding varieties Keywords : Bacterial, Bacterial leaf blight, rice of local varieties,