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All Journal Pelita Perkebunan AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian
Saleh, Ifayanti Ridwan
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science

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Pengendalian Kejadian Gugur Bunga dan Buah (Fruit-drop) dengan Aplikasi Indole Acetic Acid (IAA), Indole Butyric Acid (IBA) dan Giberelin Pada Tanaman Cabai (Capsicum annuum L.) Dermawan, Rahmansyah; Saleh, Ifayanti Ridwan; Mantja, Katriani; Iswoyo, Hari; Salmiati, St
AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian Vol 4 No 1 (2020): AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (525.96 KB) | DOI: 10.33019/agrosainstek.v4i1.56

Abstract

Penelitian bertujuan mendapatkan data dan informasi morfofisiologi kejadian gugur bunga dan buah (fruit-drop) pada tanaman cabai terhadap pemberian zat pengatur tumbuh (ZPT) auksin (IAA dan IBA) dan GA3. Penelitian disusun berdasarkan Rancangan Petak Terpisah dalam rancangan acak kelompok dengan 3 ulangan. Petak utama adalah 3 jenis ZPT yaitu IAA, IBA, dan GA3. Anak petak yaitu konsentrasi perlakuan yang terdiri dari 5 taraf (ppm) yaitu 0, 25, 50, 75, dan 100 ppm. Data yang diperoleh dianalis menggunakan software STAR dan jika terdapat beda nyata diuji lanjut dengan Beda Nyata Terkecil (BNT) pada taraf 5%. Hasil penelitian menunjukkan bahwa perlakuan IAA, IBA, dan GA3 serta konsentrasi perlakuannya tidak berpengaruh nyata terhadap jumlah bunga tinggal maupun bunga gugur pada tanaman cabai besar. Namun, hasil penelitian menemukan bahwa perlakuan ZPT menghasilkan jumlah bunga tinggal yang lebih banyak dibandingkan bunga gugur. Pemberian IAA 25 ppm menghasilkan jumlah buah tinggal tertinggi dibandingkan konsentrasi IAA lainnya. Peningkatan konsentrasi GA3 cenderung meningkatkan jumlah buah tinggal dan tertinggi pada konsentrasi GA3 100 ppm. Interaksi antara jenis ZPT dan konsentrasi pemberiannya berpengaruh nyata terhadap bobot per buah. Perlakuan GA3 100 ppm menghasilkan bobot per buah tertinggi. Peningkatan konsentrasi auksin cenderung menurunkan bobot per buah. Pemberian IBA 100 ppm menurunkan panjang buah cabai besar.
Application of Coconut Shell Biochar and Rhizobacteria Consortium to Increase Cocoa Production (Theobroma cacao L.) Laurenze, Reynaldi; Ala, Ambo; Saleh, Ifayanti Ridwan
Pelita Perkebunan (a Coffee and Cocoa Research Journal) Vol. 39 No. 2 (2023)
Publisher : Indonesian Coffee and Cocoa Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iccri.jur.pelitaperkebunan.v39i2.545

Abstract

The decline in Indonesia’s cocoa production as a result of soil fertility degra dation causes fertilization to become one of effective effects. Because of that, it is possible to restore soil fertility potential by using soil fertility enhancer biochar combined with rhizobacteria consortium to create suitable conditions for plant.This research was aimed to study and investigate coconut shell biochar interacts with rhizobacteria in increasing cocoa production. This research was conducted at Kodeoha, North Kolaka, Southeast Sulawesi from September 2022 until March 2023. A split plot design with three replications each consisted of two experimental units was used as an experimental design. Biochar dosage as the main plot consisted of four levels, namely 0 ton ha-1 (control), 2.5 ton ha-1, 5 ton ha-1, and 7.5 ton ha-1 and rhizobacteria concentration as the sub plots consisted offour levels, namely 0 mL L-1, 50 mL L-1, 100 mL L-1, and 150 mL L-1. Results of this research showed a significant interaction between biochar 5 tons ha-1 and rhizobacteria 100 mL L-1 which provide best result for chlorophyll a (336 μmol m-2), chlorophyll b (150 μmol m-2), and total chlorophyll (484 μmol m-2). The interaction between biochar 5 tons ha-1 and rhizobacteria 150 mL L-1 showed the best results for number of harvested pods per tree (10.00 pods), bean weight per tree (606 g trees-1), stomata opening area (31 μm2). The interaction between biochar 7.5 tons ha-1 and rhizobacteria 150 mL L-1 showed the best results on the weight of 100 dry beans at water content 8% (159.03 g)
Co-Authors Ambo Ala, Ambo Dermawan, Rahmansyah Iswoyo, Hari Laurenze, Reynaldi Salmiati, St