Simos H.T Raharjo
Program Study Pemuliaan Tanaman, Fakultas Pertanian, Universitas Pattimura, Jln. Ir. M. Putuhena, Kampus Poka, Ambon 97233, Indonesia

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Journal : Jurnal Agrosilvopasture-Tech

Keragaan Dan Daya Hasil Beberapa Varietas Jagung Lokal Pulau Kisar, Kabupaten Maluku Barat Daya Akerina, Allinsia Meilany; Laisina, Jane K J; Raharjo, Simon H T
Jurnal Agrosilvopasture-Tech Vol 3 No 1 (2024): Jurnal Agrosilvopasture-Tech
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/j.agrosilvopasture-tech.2024.3.1.166

Abstract

This research aimed to determine the performance and yield of several local corn acccessions from Kisar Island, Maluku Barat Daya (MBD) or Southwestern Maluku Regency. This research was carried out on the field of the Kisar Island Agricultural Extension Center located in Lebelau Village, MBD Regency from November 2022 to February 2023. The research was carried out as an experiment designed as a single factor Randomized Block Design, with 4 replicates. The single factor was corn accession/variety consisting of four local corn accessions from Kisar Island and one superior variety of Sukmaraga as a comparison. The results of this study showed that local corn from Kisar Island in the form of the Merah Delima Kisar accession had the highest values for the variables of plant height, leaf number, and cob height when compared with the Putih Kisar accession, the Kuning Bunga Kisar accession and the Ungu Kisar accession. The Putih Kisar accession had high values for cob plus kernel weight with husks (145.40 g), cob plus kernel weight without husks (127.33 g), fruit diameter (4.08 cm), cob length (13.98 cm), number of kernels per plant (391.75), weight of 100 kernels (33.00 g) and kernel weight per plant (114.09 g), when compared with the Merah Delima Kisar, Kuning Bunga Kisar, and Ungu Kisar accessions. The Putih Kisar and Merah Delima Kisar accessions showed high yields. They were not significantly different from the Sukmaraga variety, which had the highest yields based on kernel weight per plant.
Ketahanan Beberapa Galur Harapan Kacang Hijau Asal Kepulauan Tanimbar Terhadap Penyakit Busuk Akar Basah (Rhizoctonia Solani Kuhn) Laritmas, Irma S; Leiwakabessy, Christoffol; Raharjo, Simon H.T
Jurnal Agrosilvopasture-Tech Vol 3 No 2 (2024): Jurnal Agrosilvopasture-Tech
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/j.agrosilvopasture-tech.2024.3.2.213

Abstract

Mung bean is a supplemental and alternative food source whose disease attacks often hamper cultivation. One of the main diseases that attacks mung beans is wet root rot caused by R. solani, which has a negative effect on growth and causes a decrease in crop yield. This research aimed to determine mung bean lines resistant to wet root rot disease and the level of resistance of the lines from the Tanimbar Islands to wet root rot disease. This research was carried out at the Disease Diagnosis Laboratory, Pattimura University, and took place from July to September 2023. It used descriptive analysis involving eight treatments in the form of 8 local mung bean genotypes from the Tanimbar Islands. The R. solani isolate used to test the resistance of mung bean genotypes was taken from samples of diseased plants (mustard), isolated on PDA media, and grown for seven days. The genotypes that were tested by inoculation at the seedling stage consisted of KC_3-8, KC_6-1, KC_8-2, KC_9-10, KC_23-6, KC_23-8, KC_23-9, and KC_26-4. In addition to the growth of young seedlings after inoculation, the parameters as indicators of mung bean resistance were the incubation period and disease severity in each genotype. Analyses of the incubation period, severity of wet root rot disease, and vegetative plant growth data consisting of sprout height, number of leaves, root length, and fresh and dry weight, were carried out descriptively. The results of this study indicate that three genotypes were moderately susceptible to R. solani, namely KC_6-1, KC_3-8, and KC_9-10; whereas the genotypes KC_26-4, KC_23-6, KC_25-8, KC_25-8, KC_28-9 were included in the susceptible category. The lowest root rot disease severity was found in genotypes KC_6-1, KC_3-8, and KC_9-10, while the other five genotypes were in the high category.