Article Per Year (5 Year)
p-Index From 2021 - 2026
0
P-Index
This Author published in this journals
All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Natur Indonesia Indonesian Journal of Agricultural Science Proceeding International Conference on Global Resource Conservation REINWARDTIA BERITA BIOLOGI Biosaintifika: Journal of Biology & Biology Education Makara Journal of Science Dinamika Kerajinan dan Batik: Majalah Ilmiah
ALEX HARTANA
Departemen Biologi, FMIPA Institut Pertanian Bogor, Kampus Darmaga Bogor
Agriculture, Biological Sciences & Forestry Arts Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Social Sciences Other

Published : 14 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 14 Documents
Search

 1   2 
Characteristics and Ideotype Formulation of Pulasan (Nephelium ramboutan-ake) Fruit Landrace from West Java, Indonesia Djuita, Nina Ratna; Hartana, Alex; Chikmawati, Tatik; Dorly,
Makara Journal of Science Vol. 21, No. 2
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Pulasan (Nephelium ramboutan-ake) is a unique tropical fruit, but its morphological variations have not been well characterized. This study was conducted to obtain data on the characteristics of pulasan landrace in West Java, Indonesia, and to formulate the ideotype of pulasan with superior characteristics, such as high fruit weight, sweet taste, and thick and easily peelable aril from the seed. Based on the descriptors of rambutan, 61 fruit variants were observed. The results showed that the average fruit weight was 46.0 g, with the highest at 103.5 g and the lowest at 23.1 g. The °Brix level variation of pulasan fruit was 16.8–29.6, and its vitamin C content was 14.0–24.0 mg/100 g. Five variants with superior fruit characters were identified among the sample collections used in the study
ISOLASI FRAGMEN cDNA DARI GEN PENYANDI AKTIN DARI Melastoma malabathricum Hannum, Saleha; Akashi, Kinya; Suharsono, Utut Widyastuti; Hartana, Alex
Makara Journal of Science Vol. 14, No. 2
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Isolation of cDNA Fragment of Gene Encoding for Actin from Melastoma malabthricum. M. malabathricum grows well in acidic soil with high Al solubility, thereby it can be used as a model plant for tolerance to aluminum and acid stresses. Actin is housekeeping gene used as an internal control for gene expression analysis. The objective of this research was to isolate and clone the cDNA fragments of MmACT encoding for actin of M. malabathricum. Total RNA was isolated and used as the template for cDNA synthesis by reverse transcription. Four cDNA fragments of MmACT, called MmACT1, MmACT2, MmACT3, and MmACT4, had been isolated and inserted into pGEM-T Easy plasmid. Nucleotide sequence analysis showed that the size of MmACT1 and MmACT2 is 617 bp, whereas MmACT3 and MmACT4 is 735 bp. The similarity among these four MmACT is about 78%-99% based on nucleotide sequence and about 98%-100% based on amino acid sequence. Phylogenetic analysis based on amino acid sequence showed that at 1% dissimilarity, the MmACT1, MmACT2, MmACT3 and the ACT5 Populus trichocarpha are clustered in one group, while the MmACT4 is grouped with ACT9 P. trichocarpa and ACT1 Gossypium hirsutum, and these two groups are separated from actin group of monocotyledonous plants. The sequence of MmACT fragments were registered in GenBank/EMBL/DDBJ database with accession numbers AB500686, AB500687, AB500688, and AB500689.
Taksonomi Mangga Budidaya Indonesia dalam Praktik Fitmawati, ,; Hartana, Alex; Purwoko, Bambang S.
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 37 No. 2 (2009): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (49.283 KB) | DOI: 10.24831/jai.v37i2.1405

Abstract

The classification  of  cultivated plants should meet two approaches namely the botanical (classifying based on essential systematic plant characters) and the practical approach (clustering based on the analysis of commercial properties). This study analyzed taxonomy of mango cultivars grown in Indonesia based on morphology and agronomy characters. It obtained 84 recognizable cultivars.They are grouped into eigth main cultivar-groups (e.g. Berem, Madu, Gedong, Golek, Bapang, Arumanis, Kepodang, and Kebo) and eigthteen cultivar-groups. The 'Lalijiwo' cultivars synonym with 'Thaber', 'Tabar', 'Gurih' whereas 'Arummanis' synonim with 'Gadung'. Meanwhile, the cultivar 'Kates277' which is a member of Golek cultivar main group is homonim with the cultivar 'Kates' in Arummanis cultivars main group. Furthermore, the cultivar Nanas93 (one of Madu main group cultivar) that different with  the cultivar 'Nanas71' which is categorized as member of Bapang main cultivar group.   Key words: Taxonomy of cultivated plant, Indonesian mango, morphology, agronomy characters
PEMANFAATAN DAUN HARENDONG (Melastoma malabathricum) SEBAGAI PEWARNA ALAMI UNTUK KAIN KATUN Azizah, Enur; Hartana, Alex
Dinamika Kerajinan dan Batik: Majalah Ilmiah Vol. 35 No. 1 (2018): Dinamika Kerajinan dan Batik : Majalah Ilmiah
Publisher : Balai Besar Standardisasi dan Pelayanan Jasa Industri Kerajinan dan Batik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22322/dkb.v35i1.3490

Abstract

Meningkatnya kesadaran di kalangan masyarakat tentang efek bahaya dari penggunaan zat pewarna sintetis membuat eksplorasi zat pewarna alami terus dilakukan. Banyak pewarna yang dihasilkan dari tumbuhan dan digunakan untuk pewarnaan tekstil. Penelitian dilakukan untuk mencari potensi dari daun harendong (Melastoma malabathricum) dalam menghasilkan pewarna alami untuk kain katun. Optimalisasi pewarnaan kain dilakukan dengan penambahan mordan berupa tawas [KAl(SO4)2.I2H2O], kapur sirih (Ca(OH)2), dan tunjung (FeSO4) saat proses fiksasi pada kain katun. Kain katun yang telah diwarnai diidentifikasi warnanya menggunakan RGB (Red Green Blue) Color Chart Reader. Kain katun yang diwarnai dengan ekstrak daun harendong menghasilkan warna Banana (#E3CF57). Pemberian mordan saat fiksasi berpengaruh terhadap warna kain. Kain yang difiksasi menggunakan tawas berwarna Khaki 1 (#FFF68F), sedangkan yang difiksasi menggunakan kapur sirih berwarna Lightgoldenrod 1 (#FFEC8B) dan kain yang difiksasi menggunakan tunjung berwarna Sgi Gray 36 (#5B5B5B). Penambahan mordan juga memberikan pengaruh baik terhadap ketahanan luntur warna pada kain katun akibat pengaruh pencucian dan paparan sinar matahari. Daun harendong berpotensi baik dalam mewarnai kain katun.
Co-Authors Ary Prihardhyanto Keim, Ary Prihardhyanto Azizah, Enur Bambang S. Purwoko Bambang Suryobroto Dewi Indriyani Roslim Dorly, Elda Irma Jeanne Joice Kawulur Fitmawati Fitmawati HAJRIAL ASWIDINNOOR Hamim Hamim Inez H. Slamet -Loedin KINYA AKASHI Kuswata Kartawinata Manggabarani, Andi Madihah Mien A. Rifai Miftahudin . Nampiah Sukarno Nina Ratna Djuita Nurhaidah Iriany Sinaga, Nurhaidah Iriany Priyanti Priyanti Priyanti, RITA MEGIA Saleha Hannum Satoto Satoto Sobir Sobir Sobir, Sri Budiarti Poerwanto Sri Endarti Rahayu, Sri Endarti Suharsono Suharsono Sukmarayu P. Gedoan Sulistyaningsih, Yohana C Tatiek Chikmawati, Tatiek TATIK CHIKMAWATI Utut Suharsono UTUT WIDYASTUTI Utut Widyastuti Suharsono Yuli Sulistyowati