Article Per Year (5 Year)
p-Index From 2020 - 2025
0
P-Index
This Author published in this journals
All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
, Tohari
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Tingkat Kritis Intensitas Cahaya Relatif Lima Genotip Kacang Hijau (Vigna radiatus L.) Titik Sundari; , Soemartono; , Tohari; W. Mangoendidjojo
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 33 No. 3 (2005): 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 (49.267 KB) | DOI: 10.24831/jai.v33i3.1262

Abstract

The aim of this experiment was to determine the critical relative light intensities (RLI) level of mungbean. The critical level was determined by 50% decreasing of grain yield. The experiment was conducted at the ILETRI (Indonesian Legume and Tuber Crops Research Institute), Malang, from February to May 2004. Five genotypes of mungbean, i.e. VC2768B, Kenari, Local Wongsorejo, Nuri and MLG 431 were grown in  four relative light intensities (RLI) levels, respectively 100%, 75%, 50% and 25%, that were prepared before planting with artificial shading. The experimental design was a randomized complete block with three replicates. The results showed that reducing RLI increased specific leaf area, but decreased leaf number, leaf area, leaf, stem and root dry weight, as well as pod number, pod dry weight and grain yield per plant. Reducing RLI from 100% to 75%, 50% and 25% did result in 15%, 56% and 71% decreased grain yield of mungbean. The critical level of RLI on mungbean was 48% or was found at 52% shading.   Key words: Vigna radiatus L., genotype, critical level, relative light intensities, growth, yield
Anatomi Daun Kacang Hijau Genotipe Toleran dan Sensitif Naungan Titik Sundari; , Soemartono; , Tohari; W. Mangoendidjojo
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 36 No. 3 (2008): 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 (253.014 KB) | DOI: 10.24831/jai.v36i3.1380

Abstract

The research to study the leaf anatomy of tolerant and sensitive mungbean genotypes to shading was conducted at Research Station of the Indonesian Legume and Tuber Crops Research Institute (ILETRI) from September to December 2004. Nine tolerant genotypes to shading including MMC 87 D-KP-2, MLG 369, MLG 310, MLG 424, MLG 336, MLG 428, MLG 237, MLG 429 and VC2768B and three sensitive genotypes including Nuri, MLG 460 and MLG 330 were tested in two shading levels, i.e., 0% (control) and 52% using randomized complete block design with three replications. The results showed that the leaves of tolerant genotypes have fewer thrichomes, thicker leaves, thinner epidermis cells, longer palisade tissues and greater number of stomata than those of sensitive genotypes when  planted under shading condition.   Key words: Mungbean, leaf anatomy, tolerant, sensitive, shading
Permeabilitas dan Perkecambahan Benih Aren (Arenga pinnata (Wurmb.) Merr.) Nugraheni Widyawati; , Tohari; Prapto Yudono; Issirep Soemardi
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 (51.493 KB) | DOI: 10.24831/jai.v37i2.1408

Abstract

The characteristics of seed coat delay the germination of sugar palm seeds. A research was carried out to investigate the permeability of sugar palm seeds and accelerate the germination. The research consists of four experiments with purposes: 1. to investigate the distribution of water content of sugar palm seed (RCBD Factorial between part of seed : whole seed, seed coat, endosperm and embryo under three conditions: control; soaking in water and germinate, 5 replications); 2. to investigate seed permeability (RCD, 6 soaking periods, 4 replications); 3. to investigate the content of lignin and tannin in seed (RCD, 8 seed ages, 4 replications); 4. to accelerate seed germination (RCBD, 6 treatments of scarification, 4 replication).  The results showed that the permeability of sugar palm seeds to water absorption declined with seed maturity because of the increasing in lignin and tannin content. Seed germination can be accelerated with scalding on the operculum site to increase water absorption.   Key words: Sugar palm, seeds, permeability, germination
Co-Authors , Soemartono Issirep Soemardi Nugraheni Widyawati Prapto Yudono TITIK SUNDARI W. Mangoendidjojo