Delvi Maretta

Dr. Delvi Maretta


Research Focus & Metrics

Academic Career Length

4Years (2023-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 December 2023 in IOP Conference Series: Earth and Environmental Science
Verified
Conference Paper
Open access
PDF file
WNWinda Nawfetrias
Winda Nawfetrias
DMDelvi Maretta
Delvi Maretta
DHD P Handayani
D P Handayani
SHS Himawati
S Himawati
RAR Aprianti
R Aprianti
FMF A Marianto
F A Marianto
This research is an initial study of the effects of vernalization and Gibberellins in two different environments. The research was conducted in a split-split plot design with three factors and three times repetition. The main plot was the environment (environment 1, environment 2), the split plot was vernalization temperature (3±2 and 9±2°C), and split-split plot was Gibberellin concentration (0, 50, 100, 150 ppm). The result showed that the vernalizations and Gibberellin have significantly affected plant height (p<0.01). The environment significantly affected plant height, number of tillers, and number of leaves. There was an interaction between Gibberellin and environment treatment on plant height and an interaction between vernalization, Gibberellin, and environment on the number of leaves. The environment with temperature: 29±2.18°C, RH: 45±9.14%, light intensity: 9272±7669 μmol m-2 S-1 showed plant height and the number of tillers higher than other environments, contrary to the number of leaves. According to the principal component analysis, this environment is more suitable for all vernalization and Gibberellin treatments than other environments. The results of this study indicate that the environment more influences vegetative growth than the other two treatments.

2 November 2025 in Malaysian Journal of Fundamental and Applied Sciences
Verified
Journal Article
Open access
PDF file
SHSiti Himawati
Siti Himawati
DMDelvi Maretta
Delvi Maretta
DHDwi Pangesti Handayani
Dwi Pangesti Handayani
ENEka Nurhangga
Eka Nurhangga
RARina Aprianti
Rina Aprianti
WNWinda Nawfetrias
Winda Nawfetrias
Shallot cultivation with TSS is the right option for the challenges with shallot cultivation using bulbs. However, poor seed storage condition may diminish seed viability. This research aimed to optimize the TSS germination and seedling growth through a priming solution. The experiment was conducted in the Agro-Industry and Biomedical Laboratory greenhouse in the South of Tangerang. It was conducted in a randomized complete block design (RCBD) with 3 replications. The TSS were soaked with water as a control and plant growth regulator priming consisting of GA3, NAA, BAP, B1, Na2S2O3.5H2O, AgNO3, and eco enzyme. Then, TSS was planted in the growth medium, watered, and sprayed daily using priming solution. The research showed that the treatment significantly affected total germinated percentage (TGP), seedling height, root length, fresh weight, seedling dry weight, and root dry weight. The highest TGP was found in the treatment of soaking and watering with the eco enzyme (92%). Meanwhile, the treatment of soaking with GA3 and NAA had the highest seedling (7.11 cm), the heaviest seedling fresh (310.40 mg), and the heaviest root fresh (72.17 mg).