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EFFECT OF INDIGENOUS MYCORRHIZAL FUNGI ON ORGANIC OSMOTIC ADJUSMENT IN SOYBEAN UNDER SALT STRESS Rahmawati, Nini; Rosmayati, .; Delvian, .; Basyuni, Mohammad
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 3, No 1 (2013): Life Sciences
Publisher : Syiah Kuala University

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Abstract

Research about influence of indigenous mycorrhizal fungi on organic osmotic adjustment to salinity stress in soybean has been implemented in saline land in Percut Sei Tuan sub district, Regency of Deli Serdang with EC 4-5 mmhos/cm. This study aimed to determine the effect of indigenous mycorrhizalinoculation on organic osmotic adjusment in different soybean varities. This study used Split Plot Design with two plots. The main plot was soybean varieties consist of non-selected Grobogan variety (salt-sensitive variety) and F5 selected Grobogan variety (salt-tolerant variety). Split plot was mycorrhizal inoculumconsists of 7 types of mycorrhizal inoculum namely without inoculum, Glomus sp-1, Glomus sp-2, Glomus sp-3, Glomus sp-4, Glomus sp-5, and combined of all mycorrhizal inoculum. The parameters observed were leaf proline content, reducing sugar and soluble protein. The results showed that leaf proline content,reducing sugar content and soluble protein were significantly different in soybean varieties, mycorrhizal significantly affected leaf proline content, reducing sugar and soluble protein, while the soybean varieties and mycorrhizal interaction significantly affected soluble protein content in leaves.
THE GROWTH AND PRODUCTION RESPONSES THREE VARIETIES OF PURPLE SWEET POTATO (IPOMEA BATATAS L.) ON GIVING MULTIPLE DOSES BOKASHI ginting, weldi; ginting, jonatan; rahmawati, nini
Jurnal Agroekoteknologi Vol 5, No 1 (2017)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jaet.v5i1.14172

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The experiment was conducted in Desa Pasar Kawat District of Beringin Kabupaten DeliSerdang on Juny to November 2015, using a factorial randomized block design with two factors, the first factor is varieties (Antin 1, Antin 2,             Antin 3) and the second factor is doses Bokashi (0, 5, 10, 15 ton/ha).Data were analized with Analysis of Variance and continued with Duncan?s Multiple Range Test (DMRT). Observed were increase height of plant, weight tuber per plot and index of yield.The results showed that application of varieties increased weight tuber per plot, index of yield.Doses Bokashi increasing the height of plant,weight tuber per plot.Interaction of varieties and giving multiple doses bokashi source were significantly effect to average weight tuber.
GROWTH RESPONSE AND PRODUCTION KIND OF SWEET POTATO VARIETIES (IPOMOEA BATATAS (L.) LAM) BY GIVING RICE STRAW COMPOST SYAHPUTRA, ANDI; Rahmawati, Nini; Setiado, Hot
Jurnal Agroekoteknologi Vol 5, No 1 (2017)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jaet.v5i1.14066

Abstract

The research was carried out at public land Desa Namo Gajah, Kecamatan Medan Tuntungan(±25 m dpl) on April to November 2015. The research used factorial Randomized Block Design (RBD) with two factors and three replications.The first factor was sweet potato varietieswith 3 kinds (Antin-1; Beta-1; and Sari)and the second factorwas rice straw compost with 4 levels(0; 5; 10; and 15 ton/ha). Data were analized with Analysis of Variance and continued with Duncan?s Multiple Range Test (DMRT). The variables observed weight biomass of plant, tuber weight per plot, and harvest index. The result of research showed that the best interaction of sweet potato varieties and rice straw compost was combination of Sari and rice straw compost 2 kg on weight biomass, tuber weight per plot, and harvest index.
RESPONS PERTUMBUHAN DAN PRODUKSI TANAMAN KEDELAI VARIETAS DETAM 1 TERHADAP PEMBERIAN VERMIKOMPOS DAN PUPUK P Sihaloho, Novita Sari; Rahmawati, Nini; Putri, Lollie Agustina P
Jurnal Agroekoteknologi Vol 3, No 4 (2015)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jaet.v3i4.11811

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh pemberian vermikompos dan pupuk P terhadap pertumbuhan tanaman kedelai. Penelitian ini dilaksanakan di lahan percobaan Fakultas Pertanian USU (± 25 m dpl) pada Maret ? Juni 2015 menggunakan Rancangan Acak Kelompok faktorial 2 faktor yaitu pemberian vermikompos (0, 0,25, 0,5 dan 0,75 kg/polibag) dan pemberian pupuk P (0, 0,625, 1,25 dan 1,825 g/polibag). Parameter yang diamati antara lain tinggi tanaman (cm), diameter batang (mm), umur berbunga (hari), bobot basah akar (g), bobot kering akar (g), bobot basah tajuk (g), bobot kering tajuk (g), volume akar (ml), jumlah cabang produktif, jumlah polong per tanaman, jumlah polong berisi, bobot 100 biji kering (g) dan umur panen (hari). Hasil penelitian menunjukkan bahwa pemberian vermikompos dan pupuk P berpengaruh nyata terhadap semua parameter kecuali umur panen (hari) dan bobot 100 biji kering. Interaksi antara vermikompos dan pupuk P berpengaruh nyata terhadap umur berbunga tanaman kedelai. Hasil yang terbaik diperoleh pada dosis vermikompos 0,75 kg/polibag dan pupuk P 0,625 g/polibag.Kata kunci : vermikompos, Pupuk P, kedelai
PRODUKSI DAN FISIOLOGI KEDELAI PADA KONDISI CEKAMAN KEKERINGAN DENGAN APLIKASI BRADYRHIZOBIUM JAPONICUM YANG DIBERI PENGINDUKSI GENISTEIN Hasanah, Yaya; Rahmawati, Nini
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 42 No. 2 (2014): Jurnal agronomi indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (310.822 KB) | DOI: 10.24831/jai.v42i2.8427

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ABSTRACTMutualism symbiosis between B. japonicum and soybean root is a complex case and managed by molecular signal exchange. Genistein is one of the main isoflavones in soybean root exudates which is responsive to nod gen induction in B. japonicum. Drought stress could give negative effect on the symbiosis. The aim of the research was to study the role of B. japonicum induced by genistein on production and physiological characters of soybean under drought stress. The experiment was conducted in a green house, Faculty of Agriculture, University of Sumatera Utara, using a randomized complete block design with three factors. The first factor was genistein induction, consisted of  with and without genistein. The second factor  was B. japonicum inoculation consisted of  without B. japonicum,  isolate 1, isolate 2 and isolate 3. The third factor  was soil water content condition, consisted of 40%, 60% and 80% of field capacity. The parameters observed were shoot dry weight, root dry weight,  net assimilation rate, dry weight per plant, 50 seeds weight and proline content. The result showed that increasing drought stress conditions decreased shoot dry weight, root dry weight, net assimilation rate, effective nodules number, seeds dry weight per plant and 50 seeds weight. The result showed that as an inducer of B. japonicum in drought stress condition, genistein reduced the effects of water stress on root nodulation of soybean. Proline acts as osmoregulator for increasing tolerance to drought stress in plants.Keywords: drought, genistein, soybean, root nodulation
ANALISIS PERTUMBUHAN KEDELAI DI LAHAN KERING DENGAN APLIKASI Bradyrhizobium japonicum YANG DIINDUKSI GENISTEIN DAN PUPUK ORGANIK Hasanah, Yaya; Rahmawati, Nini; Rahmawati, Nini
Pertanian Tropik Vol 2, No 2 (2015)
Publisher : Pasca Sarjana FP USU

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This study aimed to get the information of soybean growth response on inoculation of B. japonicum induced genistein under dry land. The experiment was conducted in farmer fields at Desa Sambirejo, Langkat on June-September 2012. The study used a factorial randomized block design with two factors and three replications. The first factor is genistein induction treatment consisting of without and genistein (50 μM). The second factor is the treatment of B. japonicum and organic fertilizer consisted of without B. japonicum; B. japonicum; B. japonicum + manure 10 t/ha; B. japonicum straw compost + 10 t/ha; B. japonicum + manure 5 t/ha + straw compost 5 t /ha. The variables observed are plant growth rate, plant growth relative and nett assimilation rate. The results showed that treatment of genistein (50 μM) decreased the plant growth rate 5-6 WAP, plant growth relative 5-6 WAP and nett assimilation rate . Treatment of B. japonicum + manure 5 t/ ha + straw compost 5 t/ ha tent to increase plant growth rate, plant growth relative and nett assimilation rate. The interaction between genistein induction and treatment B. japonicum + organic fertilizer tended to decrease plant growth rate, plant growth relative and nett assimilation rate.Keywords : Bradyrhizobium japonicum, genistein, soybean, dry land
ANALISIS PERTUMBUHAN KEDELAI DI LAHAN KERING DENGAN APLIKASI Bradyrhizobium japonicum YANG DIINDUKSI GENISTEIN DAN PUPUK ORGANIK Hasanah, Yaya; Rahmawati, Nini; Rahmawati, Nini
Pertanian Tropik Vol 2, No 2 (2015)
Publisher : Pasca Sarjana FP USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (226.812 KB)

Abstract

This study aimed to get the information of soybean growth response on inoculation of B. japonicum induced genistein under dry land. The experiment was conducted in farmer fields at Desa Sambirejo, Langkat on June-September 2012. The study used a factorial randomized block design with two factors and three replications. The first factor is genistein induction treatment consisting of without and genistein (50 μM). The second factor is the treatment of B. japonicum and organic fertilizer consisted of without B. japonicum; B. japonicum; B. japonicum + manure 10 t/ha; B. japonicum straw compost + 10 t/ha; B. japonicum + manure 5 t/ha + straw compost 5 t /ha. The variables observed are plant growth rate, plant growth relative and nett assimilation rate. The results showed that treatment of genistein (50 μM) decreased the plant growth rate 5-6 WAP, plant growth relative 5-6 WAP and nett assimilation rate . Treatment of B. japonicum + manure 5 t/ ha + straw compost 5 t/ ha tent to increase plant growth rate, plant growth relative and nett assimilation rate. The interaction between genistein induction and treatment B. japonicum + organic fertilizer tended to decrease plant growth rate, plant growth relative and nett assimilation rate.Keywords : Bradyrhizobium japonicum, genistein, soybean, dry land
ANALISA PERTUMBUHAN VEGETATIF KEDELAI HIBRIDISASI GENOTIPA TAHAN SALIN DENGAN VARIETAS ANJASMORO UNTUK MENDUKUNG PERLUASAN AREAL TANAM DI LAHAN SALIN Rosmayati, Rosmayati; Rahmawati, Nini; Astari, Retno; Wibowo, Fachrina
Pertanian Tropik Vol 2, No 2 (2015)
Publisher : Pasca Sarjana FP USU

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Peningkatan produksi kedelai perlu terus diupayakan, salahsatunya dengan memanfaatkan lahan marginal seperti tanah salin. Pemuliaan tanaman sangat diperlukan untuk menghasilkan varietas unggul, salah satunya dengan hibridisasi dan seleksi. Penelitian ini bertujuan untuk mengetahui respon pertumbuhan vegetatif hasil hibridisasi genotipa kedelai tahan salinitas dengan varietas anjasmoro untuk mendukung perluasan areal tanam di lahan salin. Penelitian ini dilaksanakan di Lahan percobaan Fakultas Pertanian dengan menggunakan media tanam tanah salin dengantingkatsalinitas 5-6 mmhos/cm yang dilakukan pada bulan September 2014 sampai dengan Mei 2015. Hasil penelitian menunjukkan terjadi penurunan pertumbuhan vegetatif mulai F1 sampai F2. Penurunan pada F2 sangat berbeda nyata dengan tinggi tanaman, jumlah cabang masing-masing sekitar 33% dan 46%, sedangkan umur berbunga pada 31 hari, lebih cepat 4 hari dibandingkan dengan kondisi optimum. Penurunan kandungan klorofil a, b dan total sebesar masing-masing 26%, 12% dan 7,1%. Namun hanya kandungan klorofil a yang penurunannya berbeda nyata dengan kondisi optimum. Dengan nilai heritabilitas tinggi tanaman, jumlah cabang dan umur berbunga masing-masing 0,2; 0,9; 0,3; menunjukkan adanya potensi genetik tanaman untuk dikembangkan di lahan salin untuk mendukung perluasan areal tanam kedelai di lahan salin.Kata Kunci: Kedelai, Pertumbuhan Vegetatif, Hasil Hibridisasi,Tahan Salin
POTENSI DAN KOMPATIBILITAS MIKORIZA VESIKULAR ARBUSKULAR (MVA) DENGAN BIBIT TANAMAN KARET (Hevea brasiliensis MUELL Arg.) KLON PB 260 Hanafiah, Asmarlaili Sahar; Dalimunthe, Afifudin; Rahmawati, Nini
Jurnal Penelitian Karet JPK : Volume 32, Nomor 1, Tahun 2014
Publisher : Pusat Penelitian Karet - PT. Riset Perkebunan Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/ppk.jpk.v32i1.148

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Tujuan penelitian adalah untuk menguji potensi dan kompatibilitas Mikoriza Vesikular Arbuskular (MVA) dengan bibit karet (Hevea brasiliensis MUELL Arg.) stump klon PB 260 yang masih mempunyai daun payung dua, berasal dari Balai Penelitian Sungei Putih di rumah kasa.  Uji potensi dan kompatibilitas dilakukan menggunakan rancangan acak kelompok (RAK) non faktorial dengan tiga ulangan, dan delapan perlakuan MVA yaitu dua isolat MVA indigenous karet, lima isolat MVA koleksi laboratorium Biologi Tanah FP USU dan tanpa MVA (kontrol).  Diinnokulasikan spora MVA sesuai perlakuan dilakukan dengan memberikan sebanyak 20 spora per polybag disekitar perakaran bibit tanaman karet. Pengamatan dilakukan setelah terbentuk daun payung tiga. Variabel yang diamati meliputi derajat infeksi akar oleh mikoriza, serapan hara P, dan pertumbuhan tanaman. Hasil penelitian menunjukkan bahwa dari beberapa isolat yang diujikan ternyata isolat Acaulospora sp 1 (kuning besar) dan isolat Acaulospora sp 2 (kuning kecil) mempunyai kemampuan beradaptasi yang tinggi dengan bibit tanaman karet yang diujikan, ditunjukkan oleh derajat infeksi akar yang tinggi yaitu 55% dan 48% yang berbeda sangat nyata dari perlakuan lain.  Untuk serapan unsur hara P, tanaman yang diinokulasi dengan  kedua isolat ini mempunyai kandungan P yang tertinggi, masing masing 34 mg P dan 35 mg P.  Kedua isolat ini adalah isolat koleksi Laboratorium FP USU.  Masa penelitian uji potensi ini hanya 7 minggu menyebabkan perlakuan terhadap beberapa variabel yang diamati  tidak berpengaruh nyata.  Diterima : 18 Oktober 2013; Direvisi : 8 November 2013; Disetujui : 12 Desember 2013 How to Cite : Hanafiah, A. S., Dalimunthe, A., & Rahmawati, N. (2014). Potensi dan kompatibilitas mikoriza vesikular arbuskular (MVA) dengan bibit tanaman karet (hevea brasiliensis muell arg.) klon PB 260. Jurnal Penelitian Karet, 32(1), 31-36. Retrieved from http://ejournal.puslitkaret.co.id/index.php/jpk/article/view/148
UPAYA PENINGKATAN KEMANDIRIAN DAN KEWIRAUSAHAAN SISWA MELALUI PROGRAM SEKOLAH BERKEBUN Rosmayati, Rosmayati; Hasanuddin, Hasanuddin; Rahmawati, Nini
ABDIMAS TALENTA Vol 3, No 1 (2018): Jurnal ABDIMAS TALENTA
Publisher : Universitas Sumatera Utara

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Abstract

OSIS and Production Unit SMKS IT Marinah Al-Hidayah Medan are two elements that work together in the development of SMKS IT Marinah Al-Hidayah Medan. Production Unit which is media for students to develop creativity, interests and talents as well as place students to add experience and income with entrepreneurship. The activities to be carried out are the cultivation of oyster mushrooms, the utilization of mushrooms baglog waste and agricultural waste as compost raw material for use as a medium in vertical agricultural systems. However, the problem faced is the difficulty of supplying good quality oyster mushroom independently and also limited information about the technical culture of oyster mushroom cultivation, baglog waste handling and agricultural waste and utilization of school land for vegetable cultivation by vertikultur method. To help overcome these problems, the community service team of the Faculty of Agriculture USU through the Garden School Program conducts training on producing good quality oyster mushroom seeds by introducing mushroom seed making tools, press baglog and 20 m2 of growing room. Wastes baglog mushrooms and agricultural waste from around the school environment then processed into compost using compost machine. The resulting compost is used as a medium for planting organic vegetables using vertikulture cultivation system. Students are also trained to process a variety of food products made from oyster mushroom so that the shelf life, nutritional content and economic value of oyster mushrooms can be increased so it can be marketed to train to increase self-reliance with entrepreneurship. Keywords: oyster mushroom, vertikultur, gardening school