Publications Prof. Luthfi Aziz Mahmud Siregar, Sp., M.sc., Ph.d. | Faculty of Agriculture Universitas Sumatera Utara

Optimization of sterilization Ebony (Diospyros celebica Bakh.) leaf explants in suppressing phenolic compounds and contamination of in vitro culture

LUTHFI AZIZ MAHMUD SIREGAR , REVANDY I M DAMANIK , SOPA PUTRI TANJUNG

The protein model of somatic embryogenesis genes of oil palm ( Elaeis guineensis Jacq.) using Phyre2and Swiss-model

MOHAMMAD BASYUNI , LUTHFI AZIZ MAHMUD SIREGAR , REVANDY I M DAMANIK

Genotypic effects on accelerated propagation of oil palm breeding materials selected (Elaeis guineensis jacq.) using somatic embryogenesis

LUTHFI AZIZ MAHMUD SIREGAR , MOHAMMAD BASYUNI , REVANDY I M DAMANIK

The protein model of somatic embryogenesis genes of oil palm ( Elaeis guineensis Jacq.) using Phyre<sup>2</sup>and Swiss-model

LUTHFI AZIZ MAHMUD SIREGAR , RETNO PUJI ASTARI, SP. MP. , REVANDY I M DAMANIK , MOHAMMAD BASYUNI

Growth Characters, Physiology and Leaf Fall Disease Resistance in Immature Plants of Rubber (Hevea brasiliensis) IRR 400 Series Clones

MOHAMMAD BASYUNI , RAHAYU NOVRINA ROSA , Syarifah Aini Pasaribu , LUTHFI AZIZ MAHMUD SIREGAR

Fruit Development and Seed Physiological Maturity of Andaliman (Zanthoxylum acanthopodium DC.), A Wild Spice in North Sumatra, Indonesia

LUTHFI AZIZ MAHMUD SIREGAR , T CHAIRUN NISA B , BENEDICTA LAMRIA SIREGAR

Bioinformatics analyses of embryoid genes in oil palm tissue culture (Elaeis guineensis Jacq.)

LUTHFI AZIZ MAHMUD SIREGAR , MOHAMMAD BASYUNI , REVANDY I M DAMANIK

Study on Good Agriculture Practice (GAP) for Pineapple Cultivation in Labuhan Batu Regency, North Sumatra Province, Indonesia

CHAIRANI HANUM L , LUTHFI AZIZ MAHMUD SIREGAR , TAVI SUPRIANA

studi on good agriculture practice GAP for pineaplle cuntivation in labuhan batu regencynorth sumatra province indonesia

CHAIRANI HANUM L , LUTHFI AZIZ MAHMUD SIREGAR , TAVI SUPRIANA , SISWA PANJANG HERNOSA

Screening Rice Lines Tolerant to Low Temperature at the Germination Stage Using Thermogradient Bar

T CHAIRUN NISA B , LUTHFI AZIZ MAHMUD SIREGAR

Induction of mutation with colchicine in Olimpus potato by in vitro culture

LUTHFI AZIZ MAHMUD SIREGAR , CHAIRANI HANUM L

Morphological Characterization and its Relationship with Preference for Pineapple in Labuhan Batu Regency, Indonesia

LUTHFI AZIZ MAHMUD SIREGAR , TAVI SUPRIANA , CHAIRANI HANUM L

Improving of true shallot seeds germination by the application of plant growth regulators and osmoconditioning treatment

REVANDY I M DAMANIK , LUTHFI AZIZ MAHMUD SIREGAR

Isolation and amplification of mangrove plants using DNA barcode in Percut Sei Tuan, North Sumatra, Indonesia

LUTHFI AZIZ MAHMUD SIREGAR , MOHAMMAD BASYUNI

Conjoint analysis of consumer preferences for pineapple fruit in Labuhan Batu District, North Sumatra

CHAIRANI HANUM L , LUTHFI AZIZ MAHMUD SIREGAR , TAVI SUPRIANA

Maturity acceleration of some rubber clones (Hevea brasiliensis L) with plant growth regulator treatment.

TRI KORYATI , LUTHFI AZIZ MAHMUD SIREGAR

Fertilizing dosage on three patchouli varieties (Pogostemon cablin Benth.) to reduce the effects of drought stress

ERWIN MASRUL HARAHAP , LUTHFI AZIZ MAHMUD SIREGAR , CHAIRANI HANUM L

In vitro Selection of Cayenne Pepper (Capsicum frutescens L.) Varieties Against Drought Stress Mediated Through Polyethylene Glycol

LOLLIE AGUSTINA P , LUTHFI AZIZ MAHMUD SIREGAR

The response of several combination of plant growth regulators to shoot induction of fig (Ficus carica L.) var. improved celeste

LUTHFI AZIZ MAHMUD SIREGAR , CHAIRANI HANUM L

Morph-physiology, Sterol and Chlorophyll Content of Bangun-Bangun (Plectranthus amboinicus (Lour.) Spreng) Accessions

EVA SARTINI BAYU , LUTHFI AZIZ MAHMUD SIREGAR

Distribution of polyprenol and dolichol in oil palms from Pisifera parents and mature plants from tissue culture propagation

MOHAMMAD BASYUNI , LUTHFI AZIZ MAHMUD SIREGAR

Morphological and physiological performance of brown rice (Oryza nivara l.) under salinity stress

CHAIRANI HANUM L , LUTHFI AZIZ MAHMUD SIREGAR

Effect of salinity on phenothypic soybean mutant character (Glycine max (L.) Merr)

DIANA SOFIA HANAFIAH , LUTHFI AZIZ MAHMUD SIREGAR

Distribution of polyprenol and dolichol in oil palm genotype (Elaeis guineensis) involving lipase activity

LUTHFI AZIZ MAHMUD SIREGAR , MOHAMMAD BASYUNI

DNA intensity and genetic diversityof oil palm (Elaeis guineensis) to determine an elite low lipase line

LUTHFI AZIZ MAHMUD SIREGAR , MOHAMMAD BASYUNI

Enhancement of drought tolerance in patchouli (Pogostemon cablin, benth) by modifying micro-climate and frequency of fertilization

LUTHFI AZIZ MAHMUD SIREGAR , ERWIN MASRUL HARAHAP , CHAIRANI HANUM L

Polymorphism levels of some SSR markers (Simple Sequence Repeat) for parental line identification on low temperature tolerance

T CHAIRUN NISA B , LOLLIE AGUSTINA P , LUTHFI AZIZ MAHMUD SIREGAR

The effect of the weight of potato tuber seeds and the duration of cytokinin application on potato tuber (Solanum tuberosum L.) dormancy release

REVANDY I M DAMANIK , LUTHFI AZIZ MAHMUD SIREGAR

Molecular Performance of Oil Palm (Elaeis Guineensis Jacq.) Origin Based on Microsatellite Marker for Low Lipase Trait

MOHAMMAD BASYUNI , LUTHFI AZIZ MAHMUD SIREGAR

Molecular Performance of Oil Palm (Elaeis Guineensis Jacq.) Origin Based on Microsatellite Marker for Low Lipase Trait

NINA UNZILA ANGKAT , LUTHFI AZIZ MAHMUD SIREGAR , MOHAMMAD BASYUNI

The Effects Of Plant Growth Regulators (Naa+Bap) And Explant Types On Propagation Buds Of Asam Gelugur (Garcinia Atroviridis Griff)

NURCHOLIS AL FARISI , LUTHFI AZIZ MAHMUD SIREGAR

Variability of coconut phenotype based on morphology and content of fatty acids in Asahan District, North Sumatra, Indonesia

DIANA SOFIA HANAFIAH , LUTHFI AZIZ MAHMUD SIREGAR

The Effects Of Plant Growth Regulators (Naa+Bap) And Explant Types On Propagation Buds Of Asam Gelugur (Garcinia Atroviridis Griff)

T CHAIRUN NISA B , LUTHFI AZIZ MAHMUD SIREGAR

The Level of Water Supply and its Effect on the Growth of Plants and Yields Patchouli (Pogostemon Cablin, Benth.)

LUTHFI AZIZ MAHMUD SIREGAR , CHAIRANI HANUM L , ERWIN MASRUL HARAHAP

The use of polyethylene glycol as simulating media of drought stress on viability of seeds varieties of Cacao (Theobroma Cacao L.) on germination stadia

REVANDY I M DAMANIK , LUTHFI AZIZ MAHMUD SIREGAR

Flower morphology and inflorescence of Andaliman (Zanthoxylum acanthopodium DC.) from Dairi, North Sumatera

T CHAIRUN NISA B , LUTHFI AZIZ MAHMUD SIREGAR , LOLLIE AGUSTINA P

Growth and production of soybean (Glycine max L. Merril) varieties in response to waterlogging at vegetative (V5) growth phase by application of gibberellic acid and salicylic acid

LUTHFI AZIZ MAHMUD SIREGAR , REVANDY I M DAMANIK

Growth and yield of patchouli (Pogostemon cablin, Benth) due to mulching and method of fertilizer on rain-fed land

CHAIRANI HANUM L , LUTHFI AZIZ MAHMUD SIREGAR , ERWIN MASRUL HARAHAP

Effects of Medium Constituents on Growth and Canthinone Accumulation in Cell Suspension Cultures of Eurycoma longifolia Jack

LUTHFI AZIZ MAHMUD SIREGAR