Mertya Anugrah
Politeknik Negeri Lampung

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

Effect of Potassium Nitrate (KNO3) Concentration and Duration of Osmopriming on the Quality of Deteriorated Green Amaranth (Amaranthus spp.) Seeds Hatika Rahmawan; Adhitya Vishnu; Mertya Anugrah
Akta Agrosia Vol 29 No 1 (2026)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/aa.29.1.1-8

Abstract

Amaranth seeds cultivated for agricultural purposes may experience a decline in vigor and viability beyond their expiration date, resulting in reduced or failed germination. Osmopriming, a seed priming technique, germination capacity, and seedling vigor by regulating partial hydration while preventing premature radicle protrusion. The objective of this research to certain effective concentration and soaking duration of KNO3. The experiment used six-year expired green amaranth seeds and a two-factor factorial Completely Randomized Design (CRD). The first factor was KNO3 concentration at 0% (water), 1%, 2%, 3%, 4%, and 5%, and the second factor was soaking duration at 1 and 10 minutes. The observations encompassed germination percentage, vigor index, and radicle emergence, among other parameters. KNO₃ osmopriming effectively restores the viability and vigor of deteriorated green amaranth seeds. The most effective treatment is 2% concentration of KNO3 and 10 minute soaking time duration for germination capacity and vigor index. Keywords: amaranthaceae, germination, imbibition, priming, radicle emergence
Efektivitas Osmopriming dalam Meningkatkan Vigor dan Viabilitas Benih Bayam Adhitya Vishnu Pradana; Anung Wahyudi; Mertya Anugrah
Jurnal Penelitian Pertanian Terapan Vol 25 No 2 (2025)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v25i2.5020

Abstract

The availability of quality spinach (Amaranthus sp.) seeds is often hampered by expiration issues that drastically reduce germination. This study aims to analyze the effectiveness of osmopriming treatment in restoring the physiological quality of expired spinach seeds and determine the most optimal time for observing radicle emergence (ER). The experiment was conducted in April–May 2025 at the Seed Science Laboratory of Lampung State Polytechnic using a one-factor Completely Randomized Design (CRD). Spinach seeds that had expired for six years were given four invigoration treatments, namely Control, 5% KNO₃, 5% PEG 6000, and 150 ppm GA₃ with four replications. The results showed that osmopriming using 5% PEG 6000 and 150 ppm GA₃ was the best treatment in significantly increasing seed viability and vigor. The 5% PEG 6000 treatment produced the highest germination rate (98.66%) and the best vigor index (82.66%), followed by GA3150 ppm which produced the fastest growth rate of 96.02% KN/etmal. In contrast, the control treatment gave the lowest results with the percentage of abnormal shoots reaching 16.00%. Through the rapid test method, the 5% PEG 6000 and 150 ppm GA3 treatments were able to trigger the fastest radicle emergence with an extreme exponential curve spike since the 16th hour after imbibition. The most optimal RE observation time was achieved at the 30th hour by the 5% PEG 6000 treatment (97.33%) and reached a perfect accumulation of 100.00% at the 42nd hour by the 150 ppm GA3 treatment. This study proves that the RE test is effective as a rapid indicator to evaluate the recovery of vigor of small spinach seedlings.