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All Journal Jurnal Agrotek Tropika Journal of Agriculture and Animal Science
Adawiah
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Agriculture, Biological Sciences & Forestry

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Kajian Parameter Genetik Asal Bahan Tanam Stek Lada Natar-1 Serta Implikasi Terhadap Program Pemuliaan Tanaman Adawiah; Katartika Fahri, Alamanda
AgriMalS Vol 5 No 2 (2025): Volume 5 Nomor 2 Tahun 2025
Publisher : Universitas Muhammadiyah Kotabumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47637/agrimals.v5i2.2006

Abstract

Black pepper (Piper nigrum) is a spice crop with significant potential as an export commodity. In Indonesia, Lampung Province is one of the major production centers contributing to national pepper production after the Bangka Belitung Islands. However, the export potential of black pepper is not aligned with its actual production levels. Strategies to enhance pepper production include the introduction of superior cultivars, such as the Natar 1 variety and vegetative propagation using cuttings sourced from both climbing and fruiting shoots. This study aims to evaluate genetic parameters and the effect of different sources of planting material of the Natar 1, as well as their implications for plant breeding programs. The experimental treatment used a single-case experimental design with three replications, while the experimental layout followed a completely randomized design. The highest genetic variability was observed in the traits of shoot height, number of shoots, number of nodes, and number of roots. Phenotypic variability showed a range of values, categorized as low, moderate, and high. High heritability was recorded for root fresh weight, and planting materials derived from climbing shoots produced higher average values compared to those from fruiting shoots. Estimates of the genotypic and phenotypic coefficient of variability, heritability is important information for plant breeders and have implications for breeding programs, particularly in variety purification and the selection of superior clones. Such information is useful for identifying which plant parts are most effective for propagation, enabling breeders to efficiently multiply superior genotypes and accelerate the development of new varieties.
VIABILITY RESPONSE OF SOYBEAN SEEDS (Glycine max [L.] Merril) VARIETY DETAP-1 TO THE PROPORTION OF QUICKLIME DURING NINETEEN MONTHS OF STORAGE Simamora, Rovia Sanori Simamora; Ermawati, Ermawati; Niar Nurmauli; Suskandini Ratih D; Adawiah
Jurnal Agrotek Tropika Vol. 13 No. 3 (2025): JURNAL AGROTEK TROPIKA VOL 13, AGUSTUS 2025
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jat.v13i3.11475

Abstract

Soybean seed storage using quicklime aims to maintain the quality of soybean seeds during a long storage period until the soybean seeds are ready to plant. This study aims to determine the optimal proportion of lime in maintaining the highest seed viability after being stored for nineteen months. This study was conducted from May to November 2023 at the Seed and Plant Breeding Laboratory, Faculty of Agriculture, University of Lampung. This study used a single factor, namely the proportion of quicklime. The proportion of lime weight used in this study was 0.0% (P0); 7.5% (P1); 15.0% (P2); 22.5% (P3); and 30.0% (P4) per 100g of seeds with a storage container volume of three liter volume.  This study was arranged in a randomized block design (RAK) with five treatments and five replications to obtain 25 experimental units. The homogeneity test of variance was carried out using the Barlett test and the additivity of the data was tested using the Tukey test. The assumption of the analysis of variance was met, the separation of the mean value of the treatment used a polynomial comparison at the α level of 5%. The results of the study revealed that the addition of the proportion of quicklime increased the germination rate, strong normal sprouts, hypocotyl length, normal dry weight of sprouts, and decreased seed water content linearly, but the increase in germination power decreased with increasing proportion of lime. Seed viability after 17 and 19 months showed a relatively low seed germination power, which was 77.80% per 30 g of lime.
Co-Authors Ermawati Ermawati Katartika Fahri, Alamanda Niar Nurmauli Simamora, Rovia Sanori Simamora Suskandini Ratih D