scholarly journals The potential of Cosmos sulphureus flower extract as a bioherbicide for Cyperus rotundus

2019 ◽  
Vol 20 (12) ◽  
Author(s):  
Dyah Respatie ◽  
Yudono Prapto ◽  
Aziz Purwantoro ◽  
Y. Andi Trisyono
Keyword(s):  
Growth Parameters ◽  
Dry Weight ◽  
Cyperus Rotundus ◽  
Purple Nutsedge ◽  
Flower Extract ◽  
Randomized Design ◽  
Maximum Inhibition ◽  
Completely Randomized Design ◽  
Total Dry Weight ◽  
Different Levels

Abstract. Respatie. D. W, Yudono P, Purwantoro A, Trisyono Y.A. 2019. The potential of Cosmos sulphureus flower extract as a bioherbicide for Cyperus rotundus. Biodiversitas 20: 3568-3574. Cosmos (Cosmos sulphureus Cav.) flower is recognized as natural source of bioherbicide compounds for several weeds. The purple nutsedge (Cyperus rotundus L.) is an important weed, and this research was aimed to determine the effects of cosmos flower extract on this weed. Dried cosmos flowers were threshed and extracted using maceration method with 70% alcohol. The experiment was conducted in the greenhouse using a completely randomized design (CRD) with three replications. Purple nutsedge tubers were planted in polybags and treated with cosmos flower extract applicated once to three times with 300 mL polybag-1 at the concentration of 40%. Different levels of inhibitions on purple nutsedge growth were observed at 30 and 60 days after sowing (DAS) due to the presence of gallic acid in the extract. Growth parameters for purple nutsedge were analyzed using Analysis of Variance (ANOVA) and followed by Least Significant Differences (LSD) at α=0.05. Significant reductions in the number of mother shoots, daughter shoots, and roots, length of mother leaves, length of rhizomes, root, and total leaf area of the purple nutsedge treated with the cosmos flower extract at 30 DAS compared to those in the control. A significant reduction was also observed in foliage dry weight, underground organs dry weight, and total dry weight of purple nutsedge. The three application times yielded maximum inhibition. In addition, these treatments reduced N, P, and  K content, chlorophyll content, and photosynthesis rates at 30 DAS. These results suggest that cosmos flower extract has the potential for controlling purple nutsedge.

scholarly journals Viability of Cyperus rotundus L. tubers after application of herbicide in pre- and postemergence

2020 ◽  
Vol 87 ◽  
Author(s):  
Ana Ligia Giraldeli ◽  
André Felipe Moreira Silva ◽  
Felipe Carrara de Brito ◽  
Robson Josadaque Nogueira de Lima ◽  
Beatriz Sizilio dos Santos ◽  
...  
Keyword(s):  
Active Ingredient ◽  
Dry Matter ◽  
Visual Control ◽  
Cyperus Rotundus ◽  
Dichlorophenoxyacetic Acid ◽  
Purple Nutsedge ◽  
Chemical Management ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
2,4 Dichlorophenoxyacetic Acid

ABSTRACT Chemical management is the most widely adopted technique to control weeds in sugarcane crops. Purple nutsedge (Cyperus rotundus L.) is among the most difficult species to control. Herbicides need to be absorbed and translocated in a sufficient amount for the tuber chain to be effective. Thus, this study aimed to evaluate the effectiveness of the herbicides sulfentrazone, diclosulam, imazapic, imazapyr, halosulfuron, ethoxysulfuron, monosodium methyl arsenate (MSMA), and 2,4-dichlorophenoxyacetic acid (2,4-D) in controlling C. rotundus and reducing the viability of its tubers. The experiment was carried out in a greenhouse in a completely randomized design, with nine treatments and four replications. The herbicides sulfentrazone (800 g active ingredient – ai·ha?1), diclosulam (193.17 g ai·ha?1), imazapic (133 g ai·ha?1), and imazapyr (500 g acid equivalent – ae·ha?1) were applied in preemergence at five days after planting the tubers, while halosulfuron (112.5 g ai·ha?1), ethoxysulfuron (135 g ai·ha?1), MSMA (1,975 g ai·ha?1), and 2,4-D (1,340 g ae·ha?1) were applied in postemergence (4 to 5 leaves). The parameters visual control, shoot dry matter, number of tubers and bulbs, weight of tubers + bulbs, number of epigeal manifestations, and tuber viability were analyzed. The herbicides diclosulam, halosulfuron, and ethoxysulfuron provided 100% control of the shoot at 90 days after application (DAA). All herbicides reduced the number of bulbs, weight of tubers + bulbs, and shoot dry matter. The herbicides sulfentrazone, imazapic, halosulfuron, ethoxysulfuron, and MSMA provided the highest reduction in tuber viability.

scholarly journals Respon Pertumbuhan dan Produksi Andrographolida Tanaman Sambiloto (Andrographis paniculata Nees) Akibat Perbedaan Dosis Pupuk Guano

Rekayasa ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 164-171
Author(s):  
Suhartono Suhartono ◽  
Diana Nurus Sholehah ◽  
Rohmad Suci Murdianto
Keyword(s):  
Medicinal Plants ◽  
Aloe Vera ◽  
Dry Weight ◽  
Fertilizer Application ◽  
Andrographis Paniculata ◽  
Randomized Design ◽  
Wet Weight ◽  
Growth Production ◽  
Completely Randomized Design ◽  
Total Dry Weight

Tanaman sambiloto (Andrographis paniculata Nees.) merupakan salah satu tanaman obat unggulan Indonesia selain temulawak, mengkudu, pegagan, lidah buaya, lada, dan kunyit. Peningkatan produktivitas sambiloto dapat dilakukan dengan perbaikan teknik budidaya melalui sistem pemupukan.  Kajian aplikasi pupuk guano terhadap pertumbuhan, produksi dan kandungan andgrographolida pada tanaman sambiloto terbatas, sehingga perlu dilakukan untuk mengetahui pengaruh pupuk guano terhadap pertumbuhan dan kandungan andrographolida pada tanaman sambiloto. Penelitian ini dilaksanakan di kebun percobaan Program Studi Agroteknologi Fakultas Pertanian Universitas Trunojoyo Madura pada bulan Januari - April 2016. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) non faktorial dengan perlakuan 6 taraf dosis pupuk guano dengan 4 ulangan. Perlakuan dosis pupuk guano per hektar meliputi G0 (control/tanpa pupuk guano), G1 (5 ton), G2 (7.5 ton), G3 (10 ton), G4 (12.5 ton), dan G5 (15 ton). Pada setiap percobaan terdapat 6 tanaman dengan rincian 3 tanaman sebagai sampel. Hasil penelitian menunjukan bahwa pemupukan guano pada dosis 15 ton/ha (G5) memberikan hasil terbaik untuk parameter tinggi tanaman, jumlah daun, luas daun, berat basah total dan berat kering total tanaman. Kandungan andrographolida (%) tertinggi diperoleh pada dosis pupuk guano 7.5 ton/ha (G2), sedangkan produksi andrograpolida (mg) tertinggi ditunjukkan oleh perlakuan G4 (dosis pupuk guano 12.5 ton/ha).Response of Growth and Production of Srographic Andrographolida Plants (Andrographis paniculata Nees) Due to Differences in Guano Fertilizer Doses Bitter plant (Andrographis paniculata Nees.) including one featured Indonesian medicinal plants in addition to ginger, noni, gotu kola, aloe vera, pepper, and turmeric. Increased productivity is bitter to do with the improvement of farming techniques through a system of fertilization. Study of guano fertilizer application on the growth, production, and content andrographolide the bitter plant is limited, so it is necessary to know the effect of guano fertilizer on the growth and content of the plant andrographolide bitter. This research was conducted at the experiment station Agrotechnology, Faculty of Agriculture, University Trunojoyo Madura at January-April 2016 by using a completely randomized design (RAL) non-factorial with 4 replications consisting of G0 (control/without guano fertilizer), G1 ( fertilizer guano 5 tons/ha) G2 (7.5 tons/ha), G3 (10 tons/ha), G4 (12.5 tons/ha) and G5 (15 tons/ha) on each trial there are 6 plants with details of 3 plants in the sample. The results showed that the guano fertilizer at a dose of 15 tons/ha (G5) can be increased plant height, leaf number, leaf area, total wet weight, and total dry weight. The highest content of andrographolide obtained at doses of 7.5 tons/ha (G2) of guano fertilizer, while the highest yield of andrographolide obtained at doses 12.5 tons/ha of guano fertilizer (G4).

scholarly journals Germination of Macroptilium lathyroides seeds as a function of the presence of salts on the substrate

2020 ◽  
Vol 11 (2) ◽  
pp. 62-68
Author(s):  
Marcia De Souza Almeida da Silva ◽  
Oscar Mitsuo Yamashita ◽  
Ana Aparecida Bandini Rossi ◽  
Marco Antonio Camillo de Carvalho ◽  
Ivone Vieira da Silva ◽  
...  
Keyword(s):  
Weed Management ◽  
Dry Weight ◽  
Tolerance Limit ◽  
Shoot Length ◽  
Integrated Weed Management ◽  
Gradual Reduction ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Macroptilium Lathyroides ◽  
Different Levels

Weeds are species evolutionarily adapted to development in areas of disorders caused by man or not. Adoption of practices to control and integrated weed management, it is essential the knowledge related to germination and environmental factors that interfere with seed germination processes. In this context, the present work aimed to evaluate the behavior of Macroptilium lathyroides seeds in response to different levels of osmotic potential induced NaCl and CaCl2 solutions. The experiment has been organized in a completely randomized design in a factorial 2 x 6, consisting of two salts in concentrations 6 with 4 repetitions. The seeds were kept in on moistened gerboxes germibox roles with NaCl and CaCl2 solutions at the potentials of 0.0; - 0.2; - 0.4; -0.6; -0.8 and -1.0 MPa. Daily reviews by germination, IVG and end ten days were determined shoot length, root length and plantlet dry weight were performed. The results demonstrated that salt stress induced by NaCl and CaCl2 provokes a gradual reduction in germination of M. lathyroides there is no tolerance limit. The NaCl The salt was more critical root development and of the seedlings dry weight.

scholarly journals Morphophysiological responses of Ilex paraguariensis seedlings to different substrates and fertilizations

2017 ◽  
Vol 21 (2) ◽  
pp. 111-115 ◽  
Author(s):  
Thairini C. Zavistanovicz ◽  
◽  
Maristela M. Araujo ◽  
Suelen C. Aimi ◽  
Rejane Flores ◽  
...  
Keyword(s):  
Dry Weight ◽  
Ilex Paraguariensis ◽  
Single Superphosphate ◽  
Rice Hulls ◽  
Randomized Design ◽  
Subsurface Soil ◽  
Completely Randomized Design ◽  
Increasing Demand ◽  
Total Dry Weight ◽  
By Products

ABSTRACT The increasing demand for Ilex paraguariensis St. Hill (yerba mate) by-products generated the need for producing a greater quantity of seedlings and improve their quality. Thus, the objective of this work was to evaluate the efficiency of different substrates combined with base fertilization for Ilex paraguariensis seedlings, through morphophysiological parameters. The experiment was conducted in a completely randomized design, in a 5 x 3 factorial arrangement, and the treatments consisted of five substrate formulations combined with two fertilizers, and a control without fertilization, in November 2013. The I. paraguariensis seedlings produced in the substrate consisted of subsurface soil, cattle manure and charred rice hulls (2:2:1) presented the greatest heights (53.36 cm), stem diameter (6.80 mm), leaf area (692.52 cm2), root dry weight (6.2 g) and total dry weight (16.4 g). The efficiency of the different fertilizations used was similar regarding the seedling growth. The physiological parameters did not differ between treatments. The substrate composed of subsurface soil, manure and charred rice hulls (2:2:1) and fertilization with urea (0.7 g L-1) single superphosphate (8.0 g L-1) and potassium chloride (0.4 g L-1) is recommended for producing I. paraguariensis seedlings.

scholarly journals Brachiaria sp yield and nutrient contents after nitrogen and sulphur fertilization

2013 ◽  
Vol 37 (4) ◽  
pp. 997-1003 ◽  
Author(s):  
Reges Heinrichs ◽  
Fernanda Grecco Grano ◽  
Leda Gobbo de Freitas Bueno ◽  
Cecílio Viega Soares Filho ◽  
Jailson Lara Fagundes ◽  
...  
Keyword(s):  
Calcium Sulfate ◽  
Dry Weight ◽  
Pastoral Systems ◽  
Brachiaria Decumbens ◽  
Nutrient Contents ◽  
Green Leaves ◽  
Production Factors ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Total Dry Weight

Among the production factors, adequate fertilization is an important tool to raise the productivity of pastoral systems and consequently increase the share of Brazil in the supply chain of primary agricultural products at the global level. The objective of this study was to evaluate the interaction of nitrogen and sulfur fertilization in BRACHIARIA DECUMBENS: Stapf. The experiment in pots with Dystrophic Oxisol was evaluated in a completely randomized design with four replications in a 5 x 3 factorial arrangement, involving five N doses (0, 100, 200, 400, and 800 mg dm-3) in the form of ammonium nitrate and three S doses (0, 20 and 80 mg dm-3) in the form of calcium sulfate, with a total of 15 treatments. In the treatments with low S dose, calcium was provided as calcium chloride, to ensure a homogeneous Ca supply in all treatments. The results showed that the tiller production and dry weight of green leaves and of stems + sheaths and total dry weight were favored by the combination of N and S fertilizer, while the proportion of dry leaves was reduced. Nitrogen fertilization raised the N contents in green leaves and stems + sheaths and reduced K contents in fresh and dry leaves. The response to S rates in the N content of green leaves was quadratic.

scholarly journals Pengaruh Beberapa Dosis Pupuk Dan Beberapa Media Tumbuh Terhadap Pertumbuhan Bibit Jabon (Anthocephalus Cadamba)

2014 ◽  
Vol 2 (1) ◽  
pp. 31
Author(s):  
Sondri Kurniawan ◽  
Afif Bintoro ◽  
Melya Riniarti
Keyword(s):  
Rice Husk ◽  
Root Length ◽  
Growth Parameters ◽  
Dry Weight ◽  
Media Composition ◽  
Soil Medium ◽  
Randomized Design ◽  
Number Of Leaves ◽  
Total Dry Weight ◽  
Anthocephalus Cadamba

Jabon wood (Anthocephalus cadamba) is a fast growing species.Currently, jabon wood is play an important rile for timber industry, included plywood, lamina, and the other timber industry.To improve the quality of wood jabon, necessary for the addition of fertilizer and improved media.Application of multiple doses of fertilizers with several media compositions was expected could increase the growth of jabon wood seedling.This observation aimed to know the effect and interaction of media composition and fertilizer on the growth of jabon wood seedling.The observation was conducted in greenhouse of Agriculture Faculty, Lampung University for 4 months.The observation was compiled factorially (3x4) in a completely randomized design (CRD) with 3 replications. The first factor was the composition of the soil medium consisting of red-yellow podzolic (100%); red-yellow podzolic + sand (1:1); red-yellow podzolic + rice husk (1:1), while the second factor was the dose of fertilizer consists of 0 g, 0.5 g , 1 g, and 1.5 g. The observed variables are added height, diameter, number of leaves, root length, and total dry weight.The results showed that media composition significantly affected, diameter, number of leaves and total dry weight.Fertilizer did not significantly affected height increment, diameter, number of leaves, root length, and total dry weight, there was no interaction between several media compositions with fertilizer. The best treatment to all growth parameters was red-yellow podzolic soil + sand (1:1) with all fertilizer doses.  Keywords: fertilizer, jabon wood, podzolic,red-yellow, rice husk

Photoperiod Effects on the Reproductive Biology of Purple Nutsedge(Cyperus rotundus)

Weed Science ◽  
1978 ◽  
Vol 26 (6) ◽  
pp. 539-542 ◽  
Author(s):  
R. D. Williams
Keyword(s):  
Reproductive Biology ◽  
Dry Weight ◽  
Cyperus Rotundus ◽  
Total Weight ◽  
Purple Nutsedge ◽  
Flowering Response ◽  
Total Dry Weight

The effects of 8-, 12-, and 16-h photoperiods on the growth and reproductive biology of purple nutsedge(Cyperus rotundusL.) were investigated over a 3-month period. Plants under the 8-h photoperiod produced the least total, shoot, root, rhizome, and tuber dry weight. Flowering occurred only at the 12-h photoperiod; thus, purple nutsedge is intermediate in flowering response to daylength. Although the total dry weight varied with photoperiod, the relative amount of dry weight (as percent of total weight) partitioned to shoots, roots, rhizomes, and tubers was constant.

scholarly journals The Application of Ectomycoriza In Ex-Limestone Mining Growth Media to Assist the Growth of Mangium (Acacia mangium)

2019 ◽  
Vol 7 (3) ◽  
pp. 332
Author(s):  
Devi Aprillia ◽  
Melya Riniarti ◽  
Afif Bintoro
Keyword(s):  
Growth Parameters ◽  
Root Nodules ◽  
Acacia Mangium ◽  
Dry Weight ◽  
Growth Media ◽  
High Survival ◽  
Randomized Design ◽  
Number Of Leaves ◽  
Total Dry Weight ◽  
Poor Soil

Ex-limestone mining quarry has poor soil fertility, both biological, chemical, and physical condition due to the mining process. Marginal land conditions such as ex-limestone mining quarry require high survival seedlings. Application of ectomycorrhizal fungi is an alternative that can be done to improve the success of restoration. Acacia mangium is one of the plants that could be colonized by many types of mycorrhizal such as ectomycorrhiza. This research aimed to determine the growth of A. mangium seedlings in ex-limestone mining growth media and the effect of ectomycorrhiza application on the growth of A. mangium. The research used a completely randomized design with six treatments and five replications. Treatment consisted of 100% soil with mycorrhiza, 100% soil without mycorrhiza, 50% soil + 50% limestone tailings + mycorrhiza, 50% soil + 50% limestones tailings without mycorrhiza, 100% tailing with mycorrhiza and 100% tailing without mycorrhiza. The seedlings used in the study germinated from seeds taken from Lampung Timur Regency. The seeds germinated in sand for one month, then used as the research material. The measurement taken were  height, diameter, number of leaves, leaf area, measured were root length, canopy dry weight, and total dry weight. The colonization of ectomycorrhiza is measured by counting the percentage of colonization. The symbiosis with rhizobium measured by number of root nodules. Data were tested for variance analysis, followed by Least Significance Different Test at significant level of 1% and 5%. The results showed that the percentage of A. mangium life was high, reaching 100%. All growth parameters showed that plant colonized by mycorrhiza has remarkably better values compared to non-mycorrhiza plants.Keywords: limestone, ectomycoriza, mangium, phytoremediation

scholarly journals POTENSI EKSTRAK DAUN KETAPANG, MAHONI, DAN KERAI PAYUNG SEBAGAI BIOHERBISIDA TERHADAP Cyperus rotundus L.

2018 ◽  
Vol 14 (2) ◽  
pp. 109
Author(s):  
Khairunnisa Khairunnisa ◽  
Indriyanto Indriyanto ◽  
Melya Riniarti
Keyword(s):  
Leaf Extract ◽  
Dry Weight ◽  
Height Growth ◽  
Cyperus Rotundus ◽  
Swietenia Macrophylla ◽  
Leaf Extracts ◽  
Terminalia Catappa ◽  
Randomized Design ◽  
Number Of Leaves ◽  
Completely Randomized Design

Bioherbicide is an alternative compound to control weeds which are environmentally friendly by utilizing parts of plant organs, like leaves that are applied in the form of extracts. The aim of this study is to determine the potential of Terminalia catappa, Swietenia macrophylla, and Filicium decipiens leaf extract as bioherbicides against Cyperus rotundus and to find out which leaf extract has the most effective to prevent the Cyperus rotundus growth. The study was done by using maceration techniques of leaf extract with ethanol solvent applied to Cyperus rotundus. This study was designed in a Completely Randomized Design (CRD) consisting of 4 treatments, which are control, 50% of Terminalia catappa leaf extract concentrate, 50% of Swietenia macrophylla leaf extract concentrate, and 50% of Filicium decipiens leaf extract concentrate. The results of this research showed that ketapang, mahogany, and kerai payung leaf extract could be used as bioherbicides because it has a very significant effect on inhibiting the height growth, the number of leaves, and the length of the roots of Cyperus rotundus. Filicium decipiens extract was the most effective extract in inhibiting the number of Cyperus rotundus leaves. However, each leaf extract did not significantly affect the reduction of chlorophyll content and dry weight. Therefore, further research is needed regarding the potential of these three leaf extracts to other weeds.

scholarly journals BIOTECHNICAL POTENTIAL OF PASPALUM SUBMITTED TO SIMPLE SUPERPHOSPHATE DOSES AND MOISTURE CONTENT

2017 ◽  
Vol 18 (4) ◽  
pp. 43 ◽  
Author(s):  
Francisco Sandro Rodrigues Holanda ◽  
Janisson Bispo Lino ◽  
Maria Hosana Santos ◽  
Tiago Barreto Garcez ◽  
Renisson Neponuceno Araújo Filho
Keyword(s):  
Total Pore Volume ◽  
Dry Weight ◽  
Shoot Length ◽  
Water Levels ◽  
Shoot Dry Weight ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Best Responses ◽  
Different Levels ◽  
Water Contents

The objective of this study was to evaluate the development of Paspalum grass millegrana Schrad propagated through seeds and tillers, subjected to different levels of water and phosphorus to be used in erosion control on slopes. The experimental trial was conducted in greenhouse with propagation of tillers and seeds of Paspalum grass, at the Federal University of Sergipe, São Cristóvão, Brazil, in a completely randomized design with sixteen treatments and four replications, arranged in a factorial scheme corresponding to (0, 100, 200, 300 and 400 mg kg-1), two water contents in the soil (60% and 100% of total pore volume) filled with water and two types of propagation (tillers and seeds). Plants were harvested at the end of four months of conducting the experiment and evaluated the following variables: number of tillers (NT), number of inflorescences (NI), Shoot Length (SL), Root Length (RL), Shoot Dry Weight (SDW) and Root Dry Weight (RDW). The phosphorus and water levels interacted positively with the variables studied and showed that this grass, presented biotech important features like good tillering, and the consequent formation of dense aerial biomass and root required for slope protection against erosion. The Paspalum millegrana species showed a better development among the variables analyzed under conditions of less water availability with 60% VTP and the best responses of the simple superphosphate dosages were between 200 and 300 mg kg-1.

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