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Keefektifan Bioherbisida Berbahan Baku Teki (Cyperus rotundus) untuk Mengendalikan Beberapa Jenis Gulma pada Pertanaman Padi Sawah Muhammad Ridwan; Dwi Guntoro; Muhamad Achmad Chozin
Buletin Agrohorti Vol. 10 No. 3 (2022): Buletin Agrohorti
Publisher : Departemen Agronomi dan Hortikultura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrob.v10i3.46452

Abstract

Produksi padi di lapangan pada umumnya masih berada di bawah potensi produksinya. Salah satu faktor penyebabnya adalah persaingan antara tanaman padi dan gulma. Inovasi yang dapat diterapkan dalam pengendalian gulma adalah aplikasi bioherbisida. Bioherbisida yang digunakan adalah bioherbisida dari senyawa alelopati yang dihasilkan tumbuhan. Senyawa alelopati dapat menekan bahkan mematikan tumbuhan lain di sekitarnya. Salah satu tumbuhan yang dapat dimanfaatkan untuk menjadi bahan baku bioherbisida adalah gulma teki (Cyperus rotundus L.). Penelitian ini bertujuan untuk mengetahui efektivitas bioherbisida berbahan baku teki (Cyperus rotundus L.) di lahan pertanaman padi. Rancangan yang digunakan adalah rancangan kelompok lengkap teracak (RKLT) faktor tunggal dan tiga ulangan. Perlakuan terdiri dari kontrol tanpa penyiangan (P0), kontrol penyiangan manual (P1), bioherbisida granul 22.5 kg tepung ha-1 (P2), bioherbisida granul 45 kg tepung ha-1 (P3), bioherbisida granul 67.5 kg tepung ha-1 (P4), bioherbisida larutan 45 kg tepung ha-1 (P5), herbisida pratumbuh Oksifluorfen 2.0 L ha-1 (P6). Hasil percobaan menunjukan bahwa aplikasi bioherbisida teki formulasi granul dosis 45 kg ha-1, dosis 67.5 kg ha-1, dan formulasi larutan dosis 45 kg ha-1 dapat menekan pertumbuhan gulma Ludwigia octovalvis, Pistia stratiotes, dan Paspalum distichum dibandingkan dengan kontrol penyiangan manual di lahan pertanaman padi. Aplikasi bioherbisida teki dapat meningkatkan hasil panen dan tidak menimbulkan toksisitas terhadap tanaman padi. Kata kunci: alelopati, bioherbisida, toksisitas
Efektivitas Waktu Pemberian Bioherbisida Ekstrak Tetracera indica (L.) Merr. pada Pengendalian Gulma Pertanaman Brokoli Fahrul Rozy Pohan; Dwi Guntoro; Muhamad Achmad Chozin
Buletin Agrohorti Vol. 11 No. 2 (2023): Buletin Agrohorti
Publisher : Departemen Agronomi dan Hortikultura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrob.v11i2.47136

Abstract

Brokoli (Brassica oleracea L.) adalah tanaman sayuran yang termasuk dalam famili kubis-kubisan. Kebutuhan brokoli di Indonesia semakin meningkat setiap tahun tetapi, mutu brokoli harus ditingkatkan dengan mengurangi penggunaan bahan-bahan kimia khususnya pada pengendalian gulma. Tetracera indica (L.) Merr. berpotensi sebagai bioherbisida karena mengandung zat alelopati. Penelitian bertujuan mengetahui pengaruh waktu pemberian ekstrak Tetracera indica (L.) Merr. terhadap efektivitas pengendalian gulma pada tanaman brokoli. Penelitian dilaksanakan di Desa Batulawang, Kecamatan Cipanas, Kabupaten Cianjur, Jawa Barat mulai Januari-April 2019. Penelitian disusun dengan menggunakan Rancangan Kelompok Lengkap Teracak (RKLT) faktor tunggal. Faktor perlakuan adalah waktu aplikasi ekstrak T. Indica (0, 1, 2, 3 MST) disertai kontrol dan penyiangan manual. Setiap bedengan disemprot dengan dosis 100 kg ha-1 hingga volume semprot 400 L ha-1. Hasil penelitian menunjukkan bahwa ekstrak Tetracera indica berpotensi sebagai bioherbisida pada fase pascatumbuh (post-emergence) gulma tanaman brokoli. Waktu aplikasi 3 MST mampu menekan pertumbuhan gulma dan tidak berpengaruh terhadap brokoli. Kata kunci: alelopati, bobot gulma, brokoli, waktu aplikasi
Response of four local cassava accessions to bio-mulch application time Suwitono, Bayu; Chozin, Muhamad Achmad; Guntoro, Dwi; Suwarto, Suwarto
Kultivasi Vol 22, No 2 (2023): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v22i2.44256

Abstract

Cassava (Manihot esculenta Crantz) is widely planted on marginal land with low soil fertility. During the initial growth phase, cassava often loses competition against weeds. Legume cover crops are widely used to increase soil fertility, prevent erosion, and suppress weeds. This study aimed to determine the effect of Arachis pintoi bio-mulch application time on the growth and yield of cassava. This study was conducted using a factorial randomized block design. The first factor was four cassava accessions: Ketan Malang, Genjah Bayam, IR Jonggol, and Mangu. The second factor was six levels of bio-mulch planting time: manual weeding (without bio-mulch applications), bio-mulch planting at the same time as cassava planting, and four, eight, and twelve weeks before cassava planting. The observations included plant height, stem diameter, number of tubers, tuber weight, tuber length, plant biomass, dry matter, and productivity. The results showed that all cassava accessions responded similarly to the planting time of A. pintoi bio-mulch. Different bio-mulch application time was insignificant in the cassava growth, except for the number of tubers and tuber diameter. The twelve weeks before cassava planting tends to reduce the results of cassava accessions.Keywords: Arachis pintoi, cover crop, dry land, growth, yield
Pengaruh Waktu Aplikasi Pupuk Dasar terhadap Pertumbuhan dan Produktivitas Berbagai Genotipe Bayam (Amaranthus sp.) Rosyid, Muhammad Syaiful Ar; Ritonga, Arya W; Chozin, Muhamad Achmad
Buletin Agrohorti Vol. 12 No. 3 (2024): Buletin Agrohorti
Publisher : Departemen Agronomi dan Hortikultura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrob.v12i3.61526

Abstract

Produktivitas nasional bayam tergolong rendah pada kisaran 20% potensi hasil, sedangkan luas lahan budidaya memiliki tren menurun. Produktivitas dapat ditingkatkan melalui penggunaan varietas unggul dan pemupukan yang optimal. Pemupukan yang optimal sangat penting karena tanaman semusim seperti bayam memiliki siklus hidup yang singkat. Pupuk dasar yang diaplikasikan pada waktu yang tepat dapat mengoptimalkan pertumbuhan dan produktivitas bayam. Penelitian ini bertujuan mengetahui pengaruh waktu aplikasi pupuk dasar terhadap berbagai genotipe bayam. Penelitian ini menggunakan rancangan kelompok lengkap teracak (RKLT) pola tersarang, dengan petak utama waktu aplikasi pupuk dasar (0 MST dan 1 MST) dan anak petak 14 genotipe bayam. Peubah yang diamati meliputi: tinggi tanaman, daya tumbuh, diameter batang, ukuran daun, panjang tangkai daun, umur panen, bobot per tanaman, bobot per petak, dan dugaan hasil per hektar. Data yang diperoleh diolah menggunakan software Ms. Excel dan dianalisis menggunakan uji BNJ pada taraf nyata 5%. Hasil penelitian menunjukkan waktu aplikasi berpengaruh sangat nyata terhadap karakter-karakter agronomis seperti panjang daun, lebar daun, panjang tangkai daun, diameter batang, luas daun, bobot pertanaman, dan produktivitas, pertumbuhan dan produktivitas lebih tinggi pada aplikasi pupuk dasar 1 MST, serta berpengaruh nyata pada tinggi tanaman dan jumlah daun saat 2 MST. Produktivitas tertinggi dimiliki oleh genotipe B3, B14 dan B12 yang merupakan bayam hijau. Produktivitas terendah terdapat pada genotipe B6, B8 dan B9 yang merupakan bayam merah. Rata-rata produktivitas bayam hijau lebih tinggi dibandingkan dengan bayam merah. Terdapat keragaman yang nyata antara genotipe yang diuji pada semua karakter. Kata kunci: karakter agronomis, keragaman genotipe, pemupukan, waktu aplikasi
Diversity of Sweet Corn Canopy Architecture for Intercropping Pattern Suitability with Cayenne Pepper Patandean, Brayen; Chozin, Muhamad Achmad; Ritonga, Arya Widura
Journal of Tropical Crop Science Vol. 12 No. 02 (2025): 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.12.02.314-326

Abstract

The intercropping system has become increasingly important due to the limited availability of agricultural land and the growing population. Sweet corn is one of the potential crops for intercropping; however, its compatibility with companion plants varies among genotypes. This study analyzed the canopy diversity of 10 sweet corn genotypes and their impact on temperature, humidity, and light intensity. The research was conducted at the Pasir Kuda Experimental Station, Bogor Agricultural University, from June to August 2024, using ten hybrid sweet corn genotypes in a randomized complete block design with three replications. Each genotype was planted in plots measuring 3.75 m², with a 25 cm × 75 cm spacing, resulting in 30 plants per bed. Principal Component Analysis (PCA) and hierarchical analysis identified three clusters of genotypes based on ten morphological traits. The first cluster included “Verona”, “Talenta”, “Paragon”, SM12 x SB13, “Exotic”, and “Secada”. The second cluster consisted of “Arinta”, SB8 x SM6, and SM12 x SM1, while the third cluster included SM1 x SM9. Temperature and humidity measurements revealed significant differences among clusters, influencing photosynthetic efficiency and yield potential. Denser canopies exhibited lower temperatures, higher humidity, and reduced light intensity, whereas more open canopies displayed higher temperatures, lower humidity, and increased light intensity. The study also analyzed cob weight, length, and diameter, as well as critical factors for yield potential and photosynthetic efficiency. Based on the results, genotypes with denser canopies from Cluster One (“Verona”, “Talenta”, “Paragon”, SM12 x SB13, “Exotic”, and “Secada”) are recommended for intercropping with cayenne peppers due to their favourable microclimate compatibility.
Keefektifan Bioherbisida Berbahan Baku Teki (Cyperus rotundus L.) Formulasi Granul untuk Pengendalian Gulma pada Padi Sawah Sistem Tabela Sofiyah, Maratus; Chozin, M.A.; Zaman, Sofyan
Buletin Agrohorti Vol. 13 No. 2 (2025): Buletin Agrohorti
Publisher : Departemen Agronomi dan Hortikultura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrob.v13i2.65586

Abstract

Padi merupakan tanaman pangan utama yang menghadapi kendala budidaya, seperti keterbatasan tenaga kerja, mahalnya sarana produksi, dan berkurangnya lahan serta air. Sistem tanam benih langsung (tabela) dinilai lebih efisien, namun meningkatkan populasi gulma. Pengendalian ramah lingkungan diperlukan, dan bioherbisida dari umbi teki (Cyperus rotundus L.) berpotensi menekan pertumbuhan gulma melalui mekanisme alelopati. Penelitian ini dilakukan untuk menguji pengaruh bioherbisida berbahan baku umbi teki pada gulma dalam pertanaman padi sawah sistem tabela. Terdapat tujuh perlakuan dalam penelitian ini diantaranya bioherbisida formulasi granul berbahan baku umbi teki dengan dosis 22.5 kg ha-1 , 45 kg ha-1, 67.5 kg ha-1, dan 90 kg ha-1, tanpa pengendalian (kontrol), pengendalian manual, dan herbisida tiobenkarb dosis 15 kg ha-1 . Analisis data dilakukan menggunakan uji F pada taraf nyata α = 5% dan dilanjutkan dengan uji lanjut Duncan’s Multiple Range Test (DMRT) pada taraf 5%. Hasil penelitian menunjukkan bahwa aplikasi bioherbisida umbi teki dosis 67.5 – 90 kg ha-1 secara efektif mampu menekan pertumbuhan gulma pada pertanaman padi sawah tabela hingga 6 MST. Aplikasi bioherbisida umbi teki dosis 22.5 – 90 kg ha-1 mampu menghambat pertumbuhan gulma dominan yakni gulma daun lebar Sphenoclea zeylanica dan Ludwigia octovalvis tanpa menimbulkan gejala keracunan pada tanaman padi. Berdasarkan keefektifannya dalam mengendalikan gulma dan pengaruhnya terhadap hasil panen padi, dosis terbaik adalah 90 kg ha-1. Kata Kunci: alelopati, dosis, herbisida nabati, Oryza sativa, toksisitas
Growth Diversity, Total Phenol, and Flavonoid of Various Cayenne Pepper (Capsicum frutescens) Genotypes Under Shading Stress Darmawansyah, Darmawansyah; Chozin, Muhamad Achmad; Santosa, Edi; Ritonga, Arya Widura
Journal of Tropical Crop Science Vol. 12 No. 03 (2025): 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.12.03.536-547

Abstract

The study of adaptation mechanisms in cayenne pepper under shade stress is crucial for further exploration. Cayenne pepper is one of the primary commodities that play an essential role in the agricultural industry. This research focuses on the adaptation of morphological, physiological, and secondary metabolite characteristics of cayenne pepper under shading treatments, while also examining the role of microclimate on these characteristics. The study was conducted from August 2023 to February 2024 at the Leuwikopo experimental field of Bogor Agricultural University, using five genotypes of cayenne pepper cultivated under two shading treatments: 0% and 50% shading, achieved using shade netting. The results showed that among the five genotypes tested, shade-loving genotypes, such as “Bonita,” and shade-tolerant genotypes, like “Ori 212,” displayed a greater morphological response in terms of plant height and canopy width under 50% shade compared to the other genotypes. In terms of yield traits, shade-tolerant genotypes, such as “Ori 212”, exhibited the highest fruit weight per plant under a 50% shading treatment compared to the other genotypes. Regarding physiological responses, specifically pigment content, no significant effect of shading treatment was observed. However, in terms of secondary metabolite content, all genotypes responded by increasing total phenol and flavonoid levels when grown in unshaded conditions or under full light intensity. This study provides insights into the adaptive responses of various cayenne pepper genotypes to microclimatic conditions in their growing environment.
Yield Stability and Disease Incident on Six Tomato Genotypes Under Shading Ulinnuha, Zulfa; Santosa, Edi; Chozin, Muhamad Achmad
Jurnal Hortikultura Indonesia (JHI) Vol. 10 No. 1 (2019): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (562.301 KB) | DOI: 10.29244/jhi.10.1.10-19

Abstract

Tomato becomes important as under-storey crop in agroforestry in Indonesia. However, farmers claim that there is yield reduction under such system. Hence, six tomato genotypes were planted under 50% reduced sunshine and full sunshine as control using randomized block nested design with genotype as main plot. The study was carried out in December 2016 to March 2017 at Cikarawang Experimental Farm, IPB Bogor. Research aimed to evaluate the production stability of tomato genotypes under shading treatment. Results showed that 50% shading affected tomato production and disease incident. Number of collected-fruit was 15-60% higher under 50% shading except for Apel Belgia and Tora genotypes that tended to decrease. Incident of gemini virus decreased by 80% and its severity decreased by 70% under 50% shading. However, 50% shading reduced tomato yield at rate 24.1% in each harvesting cycle due to a tendency on reduction on individual fruit size, irrespective genotypes. Present study demonstrated that genotype and disease incident determined tomato yield under shading. It needs further evaluation on the cause of low disease infection under 50% shading. Keywords: agroforestry, anthocyanin, disease incident, gemini virus, Solanum lycopersicum
Heritability, Correlation, and Path Analysis on Various Characters of Tomato (Solanum lycopersicum) under Shading and Normal Condition Ritonga, Arya Widura; Chozin, Muhamad Achmad; Syukur, Muhamad; Maharijaya, Awang; Sobir
Jurnal Hortikultura Indonesia (JHI) Vol. 10 No. 2 (2019): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (383.399 KB) | DOI: 10.29244/jhi.10.2.85-93

Abstract

Character selection information is essential for plant breeding program. SSH3 tomato genotype (shade-loving genotype), 4974 (shade-sensitive genotype), and F2 population derived from “SSH3 x 4974” were evaluated to estimate the heritability, correlation, direct and indirect effects between yield and various yield atributting characters in tomato under shading and normal condition at Pasir Kuda Station, Bogor Agriculture University, West Java, Indonesia from July until October 2016. The results showed that plant height, leaf length, leaf width, leaf weight, specific leaf weight, fruit weight, fruit number per plant and fruit weight per plant had high heritability under normal condition, while plant height, fruit set, fruit number of plant and fruit weight per plant had high heritability under shading condition. High direct positive effect on yield per plant was resulted from fruit weight and fruit number of plant under shading and normal condition, while leaf width had direct positive effect on fruit weighr per plant only under shading condition. High indirect positive effect on yield per plant was resulted from fruit set, fruit length and fruit diameter under shading and normal condition, while plant heigh had high indirect effect on yield per plant only under shading condition. Fruit set, fruit weight, and fruit number per plant characters were potential to be used as character selection for tomato productivity in normal conditions. Plant height, fruit set and fruit number per plant were potential to be used as character selection for tomato productivity under shading condition. Keywords: direct effect, fruit set, indirect effect, low light tolerant
Forage Potential of Plant Species Found in Various Ecosystems in Musi Banyuasin Regency, South Sumatera, Indonesia Kanny, Putri Irene; Chozin, M.A.; Santosa, Edi; Guntoro, Dwi; Zaman, Sofyan; Suwarto, Suwarto; Kurniawati, Ani
Journal of Tropical Crop Science Vol. 9 No. 01 (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.9.01.68-76

Abstract

Forage is an important component in sustainable smallholder livestock. The purpose of the study was to identify the diversity of natural plant species in various ecosystems, as well as their potential as forage. Based on our surveys of palm oil plantation, rubber plantation, and home gardens using the quadrant method, we identified approximately 50 species comprising the natural vegetation of our study area. Out of 50, we identified 39 broad-leaved species, 9 grasses (Poaceae) species, and 2 sedges (Cyperaceae) species. The palm oil plantation had 29 species dominated by Ottochloa nodosa (11.92%) and Asystasia gangetica (11.40%); 25 species were found in the rubber plantation dominated by Cynodon dactylon (28.42%) and Panicum repens (9.20%), and home gardens contained 30 species dominated by Eleusine indica (13.39%) and Ageratum conyzoides (9.60%). Among the 29 species found in the palm oil plantation, 13 were observed to have low palatability scores, and 16 species have high palatability scores. Based on their high palatability scores, the following species can be utilized as forage for Balinese cattle: Cyrtococcum acrescens, Eleusine indica, Centrosema pubescens, Paspalum conjugatum, and Sida rhombifolia.
Co-Authors , Handoko ,, Yuniarti . Sugiyanta, . A Ali Abdul Harris Burhan Abdullah Abdullah Ade Sumiahadi Adolf Pieter Lontoh, Adolf Pieter AHMAD JUNAEDI Ahmad Junaidi Ahmad Junaidi Aidi Noor Aji Hermawan Aldi M Alfima Rahasti Alfred A Antoh Alhidayah, Destya Anas Miftah Fauzi Andhini, Martika Ani Kurniawati Ansyarif Khalid Arsa, Agung Jat Wibowo Artha Regina Tambunan Asdi Asdi Asep Nursangaji Asih Sukowati Astuti DA Astuti DA Awang Maharijaya Axel Anderson Azri Kusuma Dewi Bambang Pramudya Bambang S. Purwoko Bilkis, Faras Gaitsa Bustami Syam Chairannisa, Dyana D.A. Astuti Darmawansyah Darmawansyah DARUSMAN, L.K. Darwis AN Darwis AN Desta Wirnas dewi novita Dewi, Sangrani Annisa Dhika Prita Hapsari Diah karyawati Didy Sopandie Dina Harsono Dwi Guntoro Dwiwanti Sulistyowati Dwiwanti Sulistyowati E. Namaken Sembiring Edi Santosa Edy Yusmin Eka Intan Kumala Putri Eka Wardiana Endah Dwi Susanti Endang Gunawan EVA OKTAVIDIATI, EVA Evar, Fitrawaty Orista Fahrul Rozy Pohan Faradesi Ardialisa Fibra Nurainy Gatot Pramuhadi Gerson Hans Maure GHULAMAHDI, M. h sanusi H. Soedarmadi HAJRIAL ASWIDINNOOR Hartami Dewi Hemawati Hemawati Hendrik Hendrik Herman Wafom Tubur Hermanu Triwidodo Hesty Juniar Rukmin Hiroshi Ehara Hiroshi Ehara Hiroshi Ehara Hongarta, Reynaldo HS Arifin Ida H. Somantri Indriani Santoso Iqbal . Irianto, M. Yuli Irwan Abdullah Iskandar Lubis ISMAIL SALEH Iswari S. Dewi Jalali Iqram Kanny, Putri Irene Karti PDMH Karti PDMH Khairil Anwar Krishna Surya Buana Kusuma Darma Kusuma, Ayu Vandira Candra KWANG HO KIM Laila Nur Atika Luki Abdullah M Zardan Araby M. Ghulamahdi Machfud Machfud Maisura Maisura Mansur Maria Erna Marmawi R . Maya Melati Mochammad Afifuddin Moeljarno Djojomartono Muftil Badri Muhamad Kurniadi Muhamad Syukur Muhammad Ridwan Muhammad Syaifuk Ar Rosyid Munawir, Fathurrahman Aziz Munif Ghulamahdi Murtilaksono, dan Kukuh Nurhayati Nurhayati P.M.D.H Karti, P.M.D.H Pangerang, Utama K. Patandean, Brayen Perwita, Atikah Dyah Purwono Purwono Putri Sakura Rainiyati Rainiyati Raisa Baharuddin RANI FARIDA Ratih Marina Kurniaty Rinaldo, Ruswandi Ristianingrum, Anita Ritonga, Arya W Ritonga, Arya Widura Rizki Fadilah Rohman Rosyid, Muhammad Syaiful Ar Sahara, Olyvia Fashatus Sahrullah Sahrullah Selvie D. Anis Siahaan, Gretty Febriola Sigit Prabawa Sobir Sobir Soedarmadi Hardjosoewignyo Soekisman Tjitrosemito Sofiyah, Maratus Sri Mulatsih Sudarsono Sudirman Yahya Sudradjat Sudradjat Sugiyanta Supijatno Suryana Sutikno Sutikno Suwarto Suwarto Suwarto Suwitono, Bayu Tanto Pratondo Utomo Tineke Mandang Trikoesoemaningtyas Ulinnuha, Zulfa urai salam Vitho Alveno Vivid Violin Wenny Rahmawati WIJAYANTO, N. Yasidi, Farid Yudi Febrianto Yudi Febrianto Yuline . Yundari, Yundari Zaman, Sofyan Zarwazi, Lalu Muhamad