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Stomata dan Trikoma Kultivar Kedelai Anjasmoro selama pemupukan Nanosilika dan Plant Growth Promoting Rhizobacteria Sri Suryanti; Arif Umami
Vegetalika Vol 9, No 1 (2020)
Publisher : Universitas Gadjah Mada

Soybean is a very important crop commodity in Indonesia. Increasing soybean production on dryland as cultivation land need to be carried out. Dryland have issues with either of nutrient and water availability which is not supportable for plant growth. Therefore, the application of nano-silica and plant growth promoting rhizobacteria (PGPR) are expected to increase nutrient absorption, synthesis of plant growth hormone and increase in plant resistance to drought stress. The growth of drought-resistant plants is able to be showed through the status of stomata and trichomes on leaves. So that, this study aimed to determine the stomata and trichome performance of soybean plants of Anjasmoro cultivar using nano-silica and PGPR as fertilizers. The study design used a completely randomized design with 2 factors with three replication. The first factor was nano silica concentration i.e. 0, 100 and 200 ppm. The second factor was PGPR concentration i.e. 0, 5, 10, and 15%. Results showed that the nanosilica and PGPR applications had no significant effect on stomata and trichome status of Anjasmoro cultivar except for stomatal aperture and the ratio of the size of the stomata openings. A positive correlation has been found in the study between stomata openings and soybean yields.

RESPON PERTUMBUHAN TIGA VARIETAS BIBIT KELAPA SAWIT DI PEMBIBITAN AWAL TERHADAP PEMBERIAN PUPUK NANO SILIKA PADA KONDISI CEKAMAN KEKERINGAN Wahyu Firmansyah; Titin Setyorini; Sri Suryanti
Jurnal Agrivet Vol 28, No 1 (2022): AGRIVET
Publisher : UNIVERSITAS PEMBANGUNAN NASIONAL ”VETERAN” YOGYAKARTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/agrivet.v28i1.6825

Varietas kelapa sawit yang umumnya ditanam sangat beragam dan tidak semua toleran terhadap kondisi cekaman kekeringan. Aplikasi silika pada tanaman yang tercekam kekeringan dapat meningkatkan efisiensi penggunan air. Tujuan penelitian ini yaitu untuk mengetahui pengaruh pemberian pupuk nano silika terhadap pertumbuhan beberapa varietas bibit kelapa sawit di pre-nursery pada kondisi cekaman kekeringan. Pelaksanaan penelitian pada bulan April - Juli 2021, bertempat di kebun Pendidikan dan Penelitian (KP2) Maguwoharjo Institut Pertanian Stiper Yogyakarta dan Laboratorium Sentral INSTIPER Yogyakarta. Penelitian ini adalah percobaan faktorial dengan dua faktor yang disusun dalam Rancangan Acak Lengkap (Completely Randomized Design). Faktor satu adalah dosis pupuk nano silika yang terdiri dari empat aras yaitu: 0 ml/bibit (kontrol), 5 m/bibit, 10 ml/bibit, dan 15 ml/bibit. Faktor dua adalah beberapa varietas bibit kelapa sawit yang terdiri dari tiga aras yaitu: varietas DxP SAIN 2, varietas DxP SAIN 3, dan varietas DxP SAIN 4. Untuk setiap kombinasi perlakuan terdapat 4 ulangan. Data hasil penelitian yang diperoleh dianalisis menggunakan metode Analysis of Variance (Anova) dan untuk mengetahui perbedaan antar perlakuan diuji lanjut dengan uji Duncan’s Multiple Range Test (DMRT), keduanya menggunakan jenjang nyata 5%. Hasil penelitian menunjukkan tidak ada interaksi nyata antara perlakuan pupuk nano silika dan beberapa varietas bibit kelapa sawit terhadap pertumbuhan bibit kelapa sawit di pembibitan awal. Perlakuan pupuk nano silika dengan berbagai dosis memberikan pengaruh yang sama terhadap keseluruhan parameter yang diamati pada penelitian ini, akan tetapi dosis 5 ml/bibit dan 15 ml/bibit menunjukkan nilai rata-rata tertinggi hampir di semua parameter pengamatan. Perlakuan macam varietas memberikan pengaruh berbeda pada beberapa parameter penelitian. Varietas DxP SAIN 4 merupakan varietas yang lebih tahan pada kondisi kekurangan air yang ditunjukkan dengan nilai rata-rata tertinggi pada parameter tinggi tanaman, luas daun, berat segar batang dan berat kering batang

Pengaruh Plant Growth Promoting Rhizobacteria dan Mikoriza Vesikula Arbuskula terhadap Pertumbuhan Kelapa Sawit Main Nursery pada Kondisi Cekaman Kekeringan Muhammad Hady Nugroho; Sri Suryanti; Arif Umami
Vegetalika Vol 11, No 3 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/veg.64783

Cekaman Kekeringan pada bibit kelapa sawit berpengaruh pada pertumbuhan tanaman mulai dari pertumbuhan tanaman terhambat, abnormal hingga tanaman mengalami kematian. Proses peningkatan ketahanan tanaman terhadap kekeringan dapat dilakukan dengan melalui penambahan biostimulan. PGPR (Plant Growth PromotingRhizobacteria) dan MVA (Mikoriza Vesikula Arbuskula) merupakan biostimulan yang penting dalam perkebunan kelapa sawit. Penelitian bertujuan untuk mengetahui pengaruh PGPR dan MVA terhadap pertumbuhan bibit kelapa sawit di main nursery pada kondisi cekaman kekeringan. Metode penelitian menggunakan rancangan acak lengkap faktorial yang terdiri dari 2 faktor. Faktor pertama adalah mikroorganisme yang terdiri dari 1) kontrol atau tanpa mikroorganisme 2) MVA dan 3) PGPR. Faktor kedua adalah penyiraman yang meliputi penyiraman 1 hari sekali dan penyiraman 7 hari sekali, setiap perlakuan masing-masing 5 ulangan. Hasil penelitian menunjukkan bahwa perlakuan mikroorganisme dan penyiraman tidak berpengaruh nyata terhadap pertumbuhan bibit. Meskipun demikian penyiraman setiap hari dengan inokulasi MVA mampu meningkatkan volume akar.

Utilizing Compost Soil Conditioner in Beach Sand Soil as a Palm Oil (Elaeis guineensis Jacq) in Pre-nursery Media Sri Suryanti; Ryan Firman Syah; Ichan Al Hafish
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol 5 No 1 (2023): Vol 5 No 1 (2023): Jurnal Agronomi Tanaman Tropika (JUATIKA)
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v5i1.2464

The objective of this study was to assess the effect of the type and dose of compost on the growth of oil palm seedlings in pre nursery with coastal sandy soil. The other objective is to know the effect of the type of compost on the growth of oil palm seedlings in pre nursery with coastal sandy soil. Lastly, the study examines the right dose of compost that provides the best growth of oil palm seedlings in pre nursery with coastal sandy soil. The experimental design was set in a factorial completely randomized design (CRD) consisting of two factors from April to June 2020 at the Tridharma Research Station Faculty of Agriculture, INSTIPER. The first factor is the type of compost which consists of 2 levels, Lamtoro compost, and vermicompost. The second factor is the dose of compost consisting of 4 levels: control (without compost), 50 gr compost/polybag, 75 gr compost/polybag, and 100 gr compost/polybag. The research data were analyzed using analysis of variance (α =0,05), and if there was a significant effect, it was continued with the Duncan multiple range test ( α = 0,05). Parameters observed included seedling height, total leaf, leaf width, stem diameter, shoot dry weight, root dry weight, root length, and total roots. The results showed that no combination of types and doses of compost significantly affected the growth of oil palm seedlings in pre-nursery. Using vermicompost can significantly increase oil palm seedlings' leaf area and root dry weight. Using compost at a dose of 50 g/polybag increased seedling height, stem diameter, and root dry weight in pre-nursery of oil palm seedlings.

Applying Biochar and Oil Palm Seeds' Resistance to Drought Stress Sri Suryanti; Andre Wibowo; Retni Mardu Hartati
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol 5 No 2 (2023): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 5 No. 2 Juli 2023
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v5i2.3143

Biochar is a soil enhancer because it contains macronutrients and has a high water-holding capacity. Research on the application of biochar and resistance of oil palm seedlings to drought stress was conducted to determine the dosing effect of oil palm shell biochar and watering intervals on the growth of pre-nursery oil palm seedlings under drought stress. The research was conducted in Sialang Godang Village, Bandar Petalangan District, Pelalawan District, Riau Province. The study was conducted in April 2021 – July 2021. The research used a completely randomized design (CRD) with two factors. The first factor was using biochar doses of 5 levels, namely 0 g, 50 g, 100 g, 150 g, and 200 g. The second factor was the watering interval which consisted of 3 groups, i.e.,, watering once a day, every two days, and every three days. Observational data were analyzed using an analysis of variance, and if there was a significant difference, it was continued with the Duncan Multiple Range Test at the 5% level. The results showed that giving biochar at a dose of 200 grams of oil palm shells and watering once every two days significantly increased the fresh weight of roots while providing biochar at a dose of 50 grams of biochar/polybag and watering once every three days significantly increased the dry weight of roots. Watering once every three days significantly increased the number of secondary and tertiary roots, while treatment without biochar and 50 gram/polybag biochar significantly increased the width of stomatal openings. There was a positive correlation between soil moisture content and the number of stomata (r = 0.26), the width of the opening of the stomata, and the dry weight of the roots (r = 0.25).

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