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Mechanism and Persistence Dormancy of Ground Cherry Seeds (Physalis peruviana L.) at Different Maturity Stages Pradana, Adhitya Vishnu; R. Palupi, Endah; Qadir, Abdul; Widajati, Eny
Journal of Tropical Crop Science Vol. 9 No. 03 (2022): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.9.03.183-192

Ground cherry (Physalis peruviana) seeds have a period of dormancy after ripening. A study was conducted to understand the mechanism of dormancy, the duration of after ripening persistence, and to determine the effective methods to break dormancy. The study was conducted in an experimental field at Ciwidey, West Java, Indonesia, and the Seed Testing Laboratory, Faculty of Agriculture, Department of Agronomy and Horticulture, IPB University, in February to November 2020. The first study examined the effects of the storage temperatures, i.e. 20 ±2 oC and 25 ± 2oC, and the seed maturity stages, i.e. 49 days after anthesis (DAA), 58 DAA and 62 DAA. Several methods to break seed dormancy were tested, i.e. soaking seeds for 24 hours in distilled water, in 0.5% or 1% KNO3 and, 50 ppm GA3. The results showed that the seed dormancy was broken at 7 weeks after treatment, indicated by seed germination of >80%. The ABA levels of the seeds declined from week 0 to week 11, and the seed ABA and GA reached a balance from week 7 to week 11. Seeds treated with KNO3 or distilled water break dormancy after 8 weeks. The most effective treatment to break seed dormancy is the use of exogenous hormone GA3 at 50 ppm, with seed germination of >80% at week 5.

Pengaruh Aplikasi Benzyladenine Terhadap Tunas Aglaonema Klon ‘Dud Unyamanee’ Adi Noor Prayogi; Eny Rolenti Togatorop; Adhitya Vishnu Pradana; Qurrotu A'yunin; Mertya Anugrah
SINTA Journal (Science, Technology, and Agricultural) Vol. 6 No. 2 (2025)
Publisher : Perkumpulan Dosen Muda (PDM) Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37638/sinta.6.2.393 – 400

Aglaonema 'Dud Unyamanee' merupakan tanaman hias populer yang menghadapi kendala perbanyakan konvensional yang lambat dan terbatas. Benzyladenine (BA) diketahui dapat merangsang tunas lateral dengan memecah dominasi apikal. Penelitian ini bertujuan menentukan konsentrasi BA terbaik untuk menginduksi tunas Aglaonema 'Dud Unyamanee' secara ex-vitro. Penelitian menggunakan Rancangan Acak Lengkap faktor tunggal dengan empat konsentrasi BA (0, 100, 200, dan 300 ppm). Larutan BA diaplikasikan dengan penyemprotan pada pangkal batang seminggu sekali selama empat minggu. Pengamatan dilakukan hingga 12 minggu setelah aplikasi , meliputi persentase kemunculan tunas, jumlah tunas, panjang tunas, diameter tunas, dan jumlah daun. Hasil penelitian menunjukkan aplikasi BA berpengaruh sangat nyata. Perlakuan BA 300 ppm (P3) menunjukkan hasil terbaik, mencapai 100% tunas muncul pada minggu ke-4 , dibandingkan kontrol (0 ppm) yang hanya 41,67% pada minggu ke-12. Konsentrasi 300 ppm juga menghasilkan jumlah tunas (6,83) , panjang tunas (12,93 cm) , diameter tunas (8,92 mm) , dan jumlah daun (13,58 helai) tertinggi. Disimpulkan bahwa aplikasi BA 300 ppm paling efektif untuk mempercepat inisiasi dan meningkatkan pertumbuhan tunas Aglaonema 'Dud Unyamanee'. ABSTRACT Aglaonema 'Dud Unyamanee' is a popular ornamental plant facing constraints from slow and limited conventional propagation methods. Benzyladenine (BA) is known to stimulate lateral shoot growth by breaking apical dominance. This study aimed to determine the most effective concentration of BA for inducing lateral shoots in Aglaonema 'Dud Unyamanee' via ex-vitro application. The research used a single-factor Completely Randomized Design (CRD) with four BA concentrations (0, 100, 200, and 300 ppm). The solution was applied by spraying the stem base once a week for four weeks. Observations were made up to 12 weeks after application , measuring shoot emergence percentage, shoot number, shoot length, shoot diameter, and leaf count. The results indicated that BA application had a significant effect. The 300 ppm BA treatment (P3) showed the best results, achieving 100% shoot emergence by week 4 , whereas the control (0 ppm) only reached 41.67% by week 12. The 300 ppm concentration also yielded the highest shoot count (6.83) , shoot length (12.93 cm) , shoot diameter (8.92 mm) , and leaf count (13.58). It is concluded that a 300 ppm BA application is most effective for accelerating initiation and enhancing the growth of Aglaonema 'Dud Unyamanee' lateral shoots.

Enhancing Vigor of Cucumber (Cucumis sativus L.) Seeds Through Osmo-priming Pradana, Adhitya Vishnu; Anugrah, Mertya; A'yunin, Qurrotu; Prayogi, Adi Noor; Togatorop, Eny Rolenti
Jurnal Ilmu Pertanian Vol 10, No 3 (2025): December
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.111401

Cucumber production relies heavily on high-quality seeds, yet prolonged storage often leads to a significant decline in seed vigor and viability, characterized by reduced germination and non-uniform growth. To address this challenge, invigoration techniques through seed priming offer a promising solution to revitalize aged seeds, which also aligns with global sustainability efforts in preserving genetic resources and ensuring food security. This study aimed to evaluate the effectiveness of various invigoration treatments in enhancing the viability and vigor of expired cucumber seeds from different storage periods. The research utilized a factorial split-plot design with two factors, consisting of invigoration treatments (Control, KH₂PO₄, PEG, and Distilled Water) and storage periods (9 years, 7 years, and 5 years). The variables observed included radicle emergence (RE) at 24 and 48 hours, germination capacity, percentage of abnormal seedlings, and vigor index. The results showed that all invigoration treatments significantly improved seed performance compared to the control. The KH₂PO₄ treatment was the most effective for rapid improvement within 24 hours, showing a strong correlation (R=0.99) with increased vigor and a reduction in abnormal seedlings (R=0.85). However, distilled water showed the best performance for 48-hour RE, particularly when applied to 5-year stored seeds, reaching an 88% germination rate and the highest vigor index of 80%. In conclusion, invigoration is a viable method to restore the quality of aged seeds, with KH₂PO₄ and distilled water being recommended for optimizing the performance of specific seed lots. Future studies could further explore the field establishment of these invigorated seeds under diverse environmental stress conditions.

Enhancing Vigor of Cucumber (Cucumis sativus L.) Seeds Through Osmo-priming Pradana, Adhitya Vishnu; Anugrah, Mertya; A'yunin, Qurrotu; Prayogi, Adi Noor; Togatorop, Eny Rolenti
Jurnal Ilmu Pertanian Vol 10, No 3 (2025): December
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.111401

Cucumber production relies heavily on high-quality seeds, yet prolonged storage often leads to a significant decline in seed vigor and viability, characterized by reduced germination and non-uniform growth. To address this challenge, invigoration techniques through seed priming offer a promising solution to revitalize aged seeds, which also aligns with global sustainability efforts in preserving genetic resources and ensuring food security. This study aimed to evaluate the effectiveness of various invigoration treatments in enhancing the viability and vigor of expired cucumber seeds from different storage periods. The research utilized a factorial split-plot design with two factors, consisting of invigoration treatments (Control, KH₂PO₄, PEG, and Distilled Water) and storage periods (9 years, 7 years, and 5 years). The variables observed included radicle emergence (RE) at 24 and 48 hours, germination capacity, percentage of abnormal seedlings, and vigor index. The results showed that all invigoration treatments significantly improved seed performance compared to the control. The KH₂PO₄ treatment was the most effective for rapid improvement within 24 hours, showing a strong correlation (R=0.99) with increased vigor and a reduction in abnormal seedlings (R=0.85). However, distilled water showed the best performance for 48-hour RE, particularly when applied to 5-year stored seeds, reaching an 88% germination rate and the highest vigor index of 80%. In conclusion, invigoration is a viable method to restore the quality of aged seeds, with KH₂PO₄ and distilled water being recommended for optimizing the performance of specific seed lots. Future studies could further explore the field establishment of these invigorated seeds under diverse environmental stress conditions.

Enhancing Physiological Quality of Aged Pak Choi (Brassica rapa L.) Seeds Through Different Invigoration Methods Umadi, Sarah Sakinah; Pradana, Adhitya Vishnu
Jurnal Ilmu Pertanian Vol 11, No 1 (2026): April
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.116066

Seed deterioration during storage significantly reduces the viability and productivity of pak choi (Brassica rapa L.). This study aimed to evaluate the efficacy of various synthetic and bio-organic invigoration agents combined with different soaking durations to restore the physiological quality of aged seeds (initial germination of 31%). The experiment was arranged in a factorial split-plot design. The main plots consisted of seven invigorating solvents: water (S1), shallot extract 50% (S2), mung bean sprout extract 5% (S3), bamboo shoot extract (S4), KNO₃ 1% (S5), GA₃ 100 ppm (S6), and PEG 6000 10% (S7). The sub-plots were three soaking durations: 15 (V1), 30 (V2), and 60 minutes (V3). The results indicated that a 30-minute soaking duration (V2) provided the optimal physiological window for metabolic repair without compromising desiccation tolerance. 10% PEG 6000 and 50% shallot extract emerged as the superior activators, consistently yielding the highest germination rates (up to 95.11%) and vigor indices (97.33%). While 10% PEG 6000 optimized post-emergence biomass, 50% shallot extract acted as a potent biostimulant due to its endogenous phytohormones. Furthermore, Radicle Emergence (RE) testing at 22 hours was identified as the most accurate diagnostic tool for predicting final germination capacity, particularly for the 30-minute treatment (R2 = 0.9943). Conversely, bamboo shoot extract (S4) exhibited a strong inhibitory effect, likely due to allelopathic phenolic compounds, and is not recommended for invigoration. In conclusion, hydropriming or shallot extract treatment for 30 minutes offers a practical and effective strategy for rehabilitating aged pak choi seeds.

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

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.

Enhancing Physiological Quality of Aged Pak Choi (Brassica rapa L.) Seeds Through Different Invigoration Methods Sarah Sakinah Umadi; Adhitya Vishnu Pradana
Jurnal Ilmu Pertanian Vol 11, No 1 (2026): April
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.116066

Seed deterioration during storage significantly reduces the viability and productivity of pak choi (Brassica rapa L.). This study aimed to evaluate the efficacy of various synthetic and bio-organic invigoration agents combined with different soaking durations to restore the physiological quality of aged seeds (initial germination of 31%). The experiment was arranged in a factorial split-plot design. The main plots consisted of seven invigorating solvents: water (S1), shallot extract 50% (S2), mung bean sprout extract 5% (S3), bamboo shoot extract (S4), KNO₃ 1% (S5), GA₃ 100 ppm (S6), and PEG 6000 10% (S7). The sub-plots were three soaking durations: 15 (V1), 30 (V2), and 60 minutes (V3). The results indicated that a 30-minute soaking duration (V2) provided the optimal physiological window for metabolic repair without compromising desiccation tolerance. 10% PEG 6000 and 50% shallot extract emerged as the superior activators, consistently yielding the highest germination rates (up to 95.11%) and vigor indices (97.33%). While 10% PEG 6000 optimized post-emergence biomass, 50% shallot extract acted as a potent biostimulant due to its endogenous phytohormones. Furthermore, Radicle Emergence (RE) testing at 22 hours was identified as the most accurate diagnostic tool for predicting final germination capacity, particularly for the 30-minute treatment (R2 = 0.9943). Conversely, bamboo shoot extract (S4) exhibited a strong inhibitory effect, likely due to allelopathic phenolic compounds, and is not recommended for invigoration. In conclusion, hydropriming or shallot extract treatment for 30 minutes offers a practical and effective strategy for rehabilitating aged pak choi seeds.

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