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All Journal JURNAL PERTANIAN PRESISI (JOURNAL OF PRECISION AGRICULTURE) JURNAL AGRONIDA
Inti Mulyo Arti
Gunadarma University
Agriculture, Biological Sciences & Forestry

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Pengaruh metode dan waktu pinching terhadap pertumbuhan dan hasil tanaman marigold (Tagetes erecta L.) Khoerun Nisa Zakiyatul Amaliyah; Muhammad Ridha Alfarabi Istiqlal; Inti Mulyo Arti
JURNAL AGRONIDA Vol. 11 No. 2 (2025): Jurnal Agronida
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/jag.v11i2.21433

Abstract

Pinching is a cultivation technique intended to reduce apical dominance to stimulate lateral shoot growth and redirect plant energy toward flower formation. Apical dominance occurs when the apical bud grows more actively than lateral buds due to the influence of the auxin hormones. Previous studies mostly focused on the pinching methods at a single timing, so research on combinations of pinching methods and timing in marigold plants remains limited. This study aimed to analyze the effects of pinching methods and timing on the growth and yield of marigold (Tagetes erecta L.) plants. The research was conducted from January to May 2025 at UG Carte Field, Universitas Gunadarma Technopark (UGT), using a one-factor Randomized Complete Block Design (RCBD) with 10 treatments and 3 replications, resulting in 30 experimental units with 4 sample plants each. Treatments included: no pinching (P0), single pinching at 14 DAP (P1), single pinching at 21 DAP (P2), single pinching at 28 DAP (P3), 1⅟2 pinching at 14 DAP (P4), 1⅟2 pinching at 21 DAP (P5), 1⅟2 pinching at 28 DAP (P6), double pinching at 14 DAP (P7), double pinching at 21 DAP (P8), and double pinching at 28 DAP (P9). Observed variables included growth and yield parameters. The double pinching treatment at 28 DAT (P9) produced the highest number of secondary branches (47.33 branches) and number of leaves (328.83 leaves). Meanwhile, the single pinching treatment at 28 DAT (P3) resulted in the highest flower diameter (90.45 mm) and fresh weight per flower (30.07 g).
PERTUMBUHAN DAN HASIL TANAMAN LOBAK PUTIH (Raphanus sativus L.) DENGAN PUPUK KANDANG SAPI DAN NPK PADA SISTEM IRIGASI TETES Sabrina Desianti; Inti Mulyo Arti; Risnawati; Julio Aria Nugraha
Jurnal Pertanian Presisi (Journal of Precision Agriculture) Vol. 9 No. 2 (2025)
Publisher : Universitas Gunadarma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35760/jpp.2025.v9i2.38

Abstract

Penggunaan pupuk anorganik yang terus menerus secara tunggal dapat menurunkan produktivitas tanah dan tanaman. Penggunaan pupuk anorganik yang dikombinasikan dengan pupuk organik dapat meningkatkan efektivitas serta meningkatkan produktivitas tanah dan hasil tanaman. Penelitian ini bertujuan untuk mengetahui karakteristik tumbuh dan bobot hasil panen tanaman lobak putih (Raphanus sativus L.) dengan pupuk NPK dan pupuk kandang sapi pada sistem irigasi tetes. Rancangan yang digunakan adalah Rancangan Kelompok Lengkap Teracak 2 faktor. Faktor pertama pupuk NPK terdiri dari 3 taraf yaitu (N0) kontrol, (N1) pupuk NPK 400 kg/ha, (N2) pupuk NPK 700 kg/ha. Faktor kedua pupuk kandang sapi terdiri dari 3 taraf yaitu (P0) kontrol, (P1) pukan sapi 15 ton/ha, (P2) pukan sapi 30 ton/ha. Parameter yang diamati yaitu tinggi tanaman (cm), jumlah daun (helai), intensitas serangan hama (%), bobot segar tanaman (g) dan bobot umbi (g) lobak. Data yang diperoleh berasal dari program aplikasi pengolahan data yaitu SAS (Statistical Analysis System) dan uji lanjut DMRT (Duncаn Multiple Rаnge Test) pаdа α = 5%. Hasil penelitian menunjukkan bahwa perlakuan yang terbaik yaitu pupuk NPK N1 = 400 kg/ha5.6 g dan pupuk kandang sapi P1 = 15 ton/ha pada parameter tinggi tanaman, jumlah daun, bobot umbi dan bobot segar tanaman
Co-Authors Julio Aria Nugraha Khoerun Nisa Zakiyatul Amaliyah Muhammad Ridha Alfarabi Istiqlal Risnawati Sabrina Desianti