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Resistance status and physiological responses of Dactyloctenium aegyptium to diuron herbicide in pineapple plantation RESTI PUSPA KARTIKA SARI; NANIK SRIYANI; YUSNITA YUSNITA; HIDAYAT PUJISISWANTO
Jurnal Natural Volume 22 Number 3, October 2022
Publisher : Universitas Syiah Kuala

Diuron herbicide has been used in the pineapple plantation in Lampung, Indonesia, for more than 35 years. It has been realized that the use of herbicides with the same mode of action intensively can speed up the evolution of resistant weeds over a long period of time. This study aimed to determine whether Dactyloctenium aegyptium from pineapple plantation has evolved resistance to diuron and to examine whether the resistance correlates with the weed physiological activities. The study was conducted at the University of Lampung, from September 2018 to March 2019. The study consisted of two stages, i.e. Stage 1: Weed resistance test and Stage 2: Physiological activity test on resistant weed. The study used a split-plot design. The main plot was the origins of weeds (exposed and unexposed to diuron) and thhe supplots was the diuron dose. The result showed that D. aegyptium exposed has high-level resistance to diuron. The physiological activities of D. aegyptium which has a high level of diuron resistance exhibited higher carbon assimilation, stomatal conductance, and transpiration rates than the sensitive D. aegyptium.

IDENTIFIKASI GULMA DI PERKEBUNAN KELAPA SAWIT RAKYAT TANAMAN BELUM MENGHASILKAN (TBM) Resti Puspa Kartika Sari; Hidayat Pujisiswanto; Albertus Sudirman
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 22, No 2 (2023): Oktober 2023
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/agrifor.v22i2.6628

Identifikasi Gulma Di Perkebunan Kelapa Sawit Rakyat Tanaman Belum Menghasilkan. Tumbuhnya gulma di perkebunan kelapa sawit dapat menurunkan produktivitas kelapa sawit. Gulma bersaing dengan tanaman kelapa sawit dalam memperebutkan sarana tumbuh. Pengendalian gulma harus dilakukan berdasarkan rekomendasi yang tepat sesuai dengan gulma sasaran. Penelitian ini bertujuan untuk mengidentifikasi jenis-jenis gulma yang ditemukan di kebun kelapa sawit tanaman belum menghasilkan. Penelitian dilakukan pada bulan Juni tahun 2022, di kebun kelapa sawit rakyat, Desa Karang Anyar, Kabupaten Lampung Selatan. Penelitian menggunakan metode deskriptif secara purposive sampling pada piringan tanaman kelapa sawit. Hasil identifikasi gulma diperoleh 4 famili yang terdiri dari 10 spesies yaitu Asystasia gangetica, Praxelis clematidea, Mikania micrantha, Synedrella nodiflora, Borreria alata, Axonopus compressus, Paspalum conjugatum, Cyperus iria, dan Cyperus esculentus. Namun, jumlah gulma yang paling banyak ditemukan yaitu A. gangetica.

Invetarisasi Gulma pada Perkebunan Kopi Rakyat di Desa Tugusari, Sumber Jaya, Lampung Barat Lu'lu' Kholidah Fauziah; Made Same; Resti Puspa Kartika Sari; Nindy Permatasari
Biofarm Jurnal Ilmiah Pertanian Vol 19, No 2 (2023): BIOFARM JURNAL ILMIAH PERTANIAN
Publisher : Universitas Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31941/biofarm.v19i2.3322

Salah satu faktor yang perlu diperhatikan dalam meningkatkan produksi tanaman kopi adalah pemeliharaan tanaman khususnya pengendalian gulma. Adanya gulma pada tanaman perkebunan dapat menimbulkan kerugian dalam berbagai aspek seperti penurunan hasil panen akibat persaingan unsur hara, air dan sinar matahari. Inventarisasi gulma dilakukan untuk mengetahui gulma penting di lapangan sehingga dapat menentukan pengendalian gulma. Penelitian ini bertujuan untuk mengetahui jenis gulma yang terdapat pada perkebunan kopi rakyat. Penelitian ini dilakukan pada bulan Juni tahun 2023, di kebun kopi rakyat Desa Tugusari, Sumber Jaya, Lampung Barat pada ketinggian 750 mdpl. Pengambilan sampel dilakukan dengan metode kuadran 1 m x 1 m secara purposive sampling pada piringan tanaman kopi sebanyak 4 ulangan. Pengambilan data dilakukan dengan mengidentifikasi jenis gulma dan jumlahnya disetiap kuadran. Hasil inventarisasi gulma diperoleh 7 Family yang terdiri dari 10 Species yaitu: Setaria plicata, Eleusin indica, Drymaria cordata, Asystasia gangetica, Borreria alata, Erechtites valerianifolia, Cosmos caudatus, Ageratum conyzoides, Cuphea balsamona dan Lindernia crustacea. Family dengan Species gulma yang banyak ditemukan adalah Asteraceae sedangkan jumlah gulma yang paling banyak ditemukan yaitu Drymaria cordata.

Analysis of Weed Vegetation in Robusta Coffee (Coffea robusta L.) Traditional Farm at Pesawaran, Lampung Nindy Permatasari; Made Same; Resti Puspa Kartika Sari; Lu'lu' Kholidah Fauziah
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5422

Weeds are highly undesirable plants in plantation areas, including robusta coffee plants. This is as a result of the presence of weeds that might minimise the productivity of robusta coffee plants. Currently, various types of weeds found in robusta coffee plants are known. This study aimed to enumerate the types of weeds found in robusta coffee plants. The research was conducted in June 2023 in robusta coffee plantations in Wiyono Village, Gedong Tataan, Pesawaran, Lampung Province. The research was conducted by purposive sampling with the plot method. The analysis showed that the composition of weeds in coffee plants consisted of 9 families and 14 species. Ageratum conyzoides appeared to dominate the coffee plants with the highest Summed Dominance Ratio (SDR) value (46.08%). The weeds diversity index (H') in coffee plants was 0.823 and the dominance index was 0.636576.

Resistance status and physiological responses of Dactyloctenium aegyptium to diuron herbicide in pineapple plantation RESTI PUSPA KARTIKA SARI; NANIK SRIYANI; YUSNITA YUSNITA; HIDAYAT PUJISISWANTO
Jurnal Natural Volume 22 Number 3, October 2022
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v22i3.25286

Diuron herbicide has been used in the pineapple plantation in Lampung, Indonesia, for more than 35 years. It has been realized that the use of herbicides with the same mode of action intensively can speed up the evolution of resistant weeds over a long period of time. This study aimed to determine whether Dactyloctenium aegyptium from pineapple plantation has evolved resistance to diuron and to examine whether the resistance correlates with the weed physiological activities. The study was conducted at the University of Lampung, from September 2018 to March 2019. The study consisted of two stages, i.e. Stage 1: Weed resistance test and Stage 2: Physiological activity test on resistant weed. The study used a split-plot design. The main plot was the origins of weeds (exposed and unexposed to diuron) and thhe supplots was the diuron dose. The result showed that D. aegyptium exposed has high-level resistance to diuron. The physiological activities of D. aegyptium which has a high level of diuron resistance exhibited higher carbon assimilation, stomatal conductance, and transpiration rates than the sensitive D. aegyptium.

EFFECT OF APPLICATION GIBBERELLIN AND SOAKING TIME ON THE GERMINATION OF TOBACCO SEEDS (Nicotiana tabacum L.) Lu'lu' Kholidah Fauziah; Nindy Permatasari; Resti Puspa Kartika Sari; Maisuri Hardani; Sismita Sari; Maryanti Maryanti; Devita Harijayanti
Agrisaintifika: Jurnal Ilmu-Ilmu Pertanian Vol. 10 No. 2 (2026): Agrisaintifika
Publisher : Universitas Veteran Bangun Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32585/ags.v10i2.8408

Tobacco (Nicotiana tabacum L.) is a plantation commodity that plays a strategic role in supporting the agricultural sector. One of the problems in tobacco cultivation is the low germination percentage of seed because of seed dormancy. This study aims to determine the effects of gibberellin concentration and soaking duration on the germination percentage and germination index of tobacco seeds. This study was conducted from February to March 2026 at the Laboratorium Tanaman II, Panen dan Pasca Panen Perkebunan, Politeknik Negeri Lampung. This study used a Completely Randomized Design (CRD) with two factors: Gibberellin concentration (0, 10, 15, and 20 ppm) and soaking duration (1, 3, and 5 hours), with three replications for each treatment. The parameters evaluated were germination percentage and germination index. Data analysis using SPSS was followed by DMRT post-hoc test at 5% significance level. The results showed that gibberellin application and soaking duration had a significant effect on the germination percentage and germination index of tobacco seed. However, no significant interaction was found between the two treatment factors tested. A treatment using gibberellin 20 ppm increased the germination percentage by 5.78% and the germination index by 0.38 compared to the control. Meanwhile, a soaking duration of 5 hours increased the germination percentage by 6.83% and the germination index by 0.40 compared to the control. Keywords: Tobacco, germination percentage, gibberellin, germination index, soaking duration

PENGARUH PUPUK NPK DAN PUPUK ORGANIK CAIR KOTORAN SAPI PADA PERTUMBUHAN BIBIT KELAPA SAWIT (Elaeis guineensis Jacq.) FASE MAIN NURSERY Bambang Utoyo; Resti Puspa Kartika Sari; Nindy Permatasari
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.v9i2.34

Bibit kelapa sawit yang berkualitas dapat terpenuhi apabila dalam proses pembibitan dilakukan pemeliharaan yang berkelanjutan. Upaya berkelanjutan tersebut salah satunya dapat diterapkan melalui pengurangan dosis pupuk anorganik dan diimbangi dengan penambahan pupuk organik. Penelitian ini bertujuan untuk memperoleh dosis pupuk NPK dan pupuk organik cair kotoran sapi terbaik, serta interaksi keduanya dalam mengoptimalkan pertumbuhan bibit kelapa sawit di main nursery. Penelitian akan dilaksanakan di Usaha Pembibitan Kelapa Sawit, Politeknik Negeri Lampung. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok (RAK) pola faktorial 3 x 3 dengan 3 ulangan. Faktor pertama adalah dosis NPK dengan taraf dosis 0 g, 2.5 g, dan 5 g. Faktor kedua adalah dosis pupuk organik cair (POC) kotoran sapi dengan taraf dosis 0; 100; dan 200 ml polibag-1. Hasil penelitian menunjukkan bahwa penggunaan NPK 5 g polibag-1 sekali dalam dua minggu efektif dalam meningkatkan tinggi tanaman, diameter bonggol bibit, jumlah pelepah daun, dan tingkat kehijauan daun pada 16 minggu setelah aplikasi perlakuan pertama. Penggunan POC kotoran sapi dengan dosis 200 ml polibag-1 hanya mampu meningkatkan diameter bonggol bibit kelapa sawit. Tidak ada interaksi antara perlakuan NPK dan POC kotoran sapi.

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