scholarly journals IDENTIFIKASI TIPE KERUSAKAN POHON DI WISATA HUTAN LINDUNG KOTA LANGSA

Jurnal Jeumpa ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 462-471
Author(s):  
Nurul Makhfirah ◽  
Dea Utami ◽  
Fairuz Sena ◽  
Vivi Mardina ◽  
Yeni Rimadeni
Keyword(s):  
Tectona Grandis ◽  
Lepidium Sativum ◽  
Taxus Baccata ◽  
Eurycoma Longifolia ◽  
Tectona Grandis L.F ◽  
Lepidium Sativum L

Indonesia merupakan salah satu Negara megabiodiversitas yang memiliki variasi jenis hutan. Peran hutan sebagai paru-paru kota untuk masyarakat diwujudkan pemerintah melalui hutan kota. Salah satunya adalah Taman Wisata Hutan Lindung kota Langsa, Aceh yang memiliki sekitar 62 jenis pohon atau berjumlah 1273 pohon dengan luas ±10Ha. Peranan hutan kota dipengaruhi oleh kesehatan hutan dalam bentuk kondisi kerusakan pohon. Penelitian ini merupakan langkah awal untuk mengetahui jenis penyakit pohon yang terdapat di Taman Wisata Hutan Lindung Kota Langsa sebagai langkah awal pemeliharaan hutan kota. Metode yang digunakan adalah metode jelajah (Cruise method) dengan observasi langsung terhadap objek yang diteliti. Hasil yang diperoleh ialah terdapat enam tipe kerusakan pohon yaitu (1) kanker yang terdapat pada pohon kayu alim (Lepidium sativum L.), (2) Luka terbuka yang terdapat pada pohon tempinis (Sloetia elongata), (3) gerowong yang terdapat pada pohon sumatra (Taxus baccata L.), (4) Brum yang terdapat pada pohon jati (Tectona grandis L.f.), (5) keropos akibat serangan rayap yang terdapat pada pohon puring (Croton laevigatus Vahl), dan (6) serangan jamur pada pohon pasak bumi (Eurycoma longifolia).

Toxicological effects of different-sized Co–Fe (CoFe2O4) nanoparticles on Lepidium sativum L.: towards better understanding of nanophytotoxicity

Ecotoxicology ◽  
2021 ◽  
Vol 30 (2) ◽  
pp. 277-291
Author(s):  
D. Montvydienė ◽  
A. Jagminas ◽  
Ž. Jurgelėnė ◽  
M. Kazlauskas ◽  
R. Butrimienė ◽  
...  
Keyword(s):  
Lepidium Sativum ◽  
Cofe2o4 Nanoparticles ◽  
Toxicological Effects ◽  
Lepidium Sativum L

scholarly journals Phytotoxicity of Tires Evaluated in Simulated Conditions

Environments ◽  
2021 ◽  
Vol 8 (6) ◽  
pp. 49
Author(s):  
Markéta Šourková ◽  
Dana Adamcová ◽  
Jan Winkler ◽  
Magdalena Daria Vaverková
Keyword(s):  
Higher Plants ◽  
Sinapis Alba ◽  
Lepidium Sativum ◽  
Root Growth Inhibition ◽  
Chemical Parameters ◽  
Sinapis Alba L ◽  
Test Kit ◽  
Physical And Chemical ◽  
Aqueous Leachate ◽  
Lepidium Sativum L

Illegal dumps and landfills with disposed of tires are a fact of today, which should not be neglected as they represent a great ecological burden for the environment, affect the surrounding nature and disturb the landscape. This research was focused on testing the phytotoxicity of aqueous leachates from the fractions of tires in two sets of experiments—to simulate laboratory conditions (tire leaching in distilled water) and natural conditions (tire leaching in water from a recipient) using the Phytotoxkit testing kit (kit for the establishment of inhibition/stimulation effect on the root development) and the watercress test of phytotoxicity (biological method for the assessment of leachate phytotoxicity). Plants whose seeds were selected for the test were watercress (Lepidium sativum L.) and white mustard (Sinapis alba L.). The aqueous leachate was tested for 38 weeks. During the experiment, physical and chemical parameters were measured at intervals of 14 days by the testing instrument HACH TEST KIT: electric conductivity (EC), amount of dissolved oxygen (LDO) and pH. Results of root growth inhibition (IR) on the seeds of Lepidium sativum L. and Sinapis alba L. exhibited values ranging from 11.73% to 47.74% in the tested samples. Results of germination index (GI) on the seeds of Lepidium sativum L. exhibited values below 66% in the tested samples, which indicated the leachate phytotoxicity. In spite of the fact that similar studies are tackling the acute toxicity of leachates from tires (particularly to algae, embryos and animals), this research brings complementary information in testing the acute phytotoxicity of tire leachates to higher plants.

Natürliche Hemmstoffe von Keimung und Wachstum, I Ausarbeitung eines quantitativen Biotests und Anwendung auf Extrakte aus Spelzen von Avena sativa L. / Natural Inhibitors of Germination and Growth, I. Development of a Quantitative Biotest and Application upon Extracts from Husks of Avena sativa L.

1982 ◽  
Vol 37 (9) ◽  
pp. 793-801 ◽  
Author(s):  
Rudolf Karl ◽  
Wolfhart Rüdiger
Keyword(s):  
Abscisic Acid ◽  
Root Growth ◽  
Organic Acids ◽  
Avena Sativa ◽  
Inhibitory Activity ◽  
Lepidium Sativum ◽  
Carbonic Acids ◽  
Germination And Growth ◽  
Natural Inhibitors ◽  
Lepidium Sativum L

Extracts from oat husks inhibit germination of a variety of seeds including Avena sativa L., Sorghum spec., Phalleris spec., Raphanus spec., Amaranthus caudatus, Lepidium sativum L. A quantitative assay for this inhibition was developed on the basis of percentage of root growth of Avena in the presence of extracted material compared with root growth of water controls. Fractionation of the extracts revealed that about half of the total inhibitory activity was found in the fraction of free organic acids. The inhibition was not due to known inhibitors. Abscisic acid. was not found in this extract. Phenole carbonic acids were determined in the extract. Their con­centration was too low to significantly contribute to the observed inhibitory activity.

Effects of Various Levels of Dietary Lepidium Sativum L. Seeds in Rats

1999 ◽  
Vol 27 (03n04) ◽  
pp. 397-405 ◽  
Author(s):  
S. E. I. Adam
Keyword(s):  
Growth Rate ◽  
Traditional Medicine ◽  
Total Protein ◽  
Toxicity Study ◽  
Lepidium Sativum ◽  
Albino Rats ◽  
Wistar Albino Rats ◽  
Lepidium Sativum L

A toxicity study was made on Lepidium sativum L. seeds used in Saudi traditional medicine for the treatment of various ailments. Lepidium sativum L. seed fed to Wistar albino rats at 2% (w/w) was non-toxic, Ten percent (w/w) was toxic but not fatal and 50% (w/w) of the diet for 6 weeks was lethal and caused depression in growth rate and entero-hepato-nephrotoxicity. Organ lesions accompanied by anemia and leukopenia were correlated with alterations in serum AST and ALT activities and concentrations of total protein, cholesterol, urea, and other serum constituents.

Mechanical but not physical dormancy is a cause of poor germination in teak (Tectona grandis L.f.)

New Forests ◽  
2011 ◽  
Vol 44 (1) ◽  
pp. 39-49 ◽  
Author(s):  
Nigel J. Slator ◽  
Andrew N. Callister ◽  
J. Doland Nichols
Keyword(s):  
Tectona Grandis ◽  
Physical Dormancy ◽  
Tectona Grandis L.F

scholarly journals Análise econômica de um plantio de teca submetido a desbastes

2003 ◽  
Vol 27 (4) ◽  
pp. 487-494 ◽  
Author(s):  
Antonio de Arruda Tsukamoto Filho ◽  
Márcio Lopes da Silva ◽  
Laércio Couto ◽  
Marcelo Dias Müller
Keyword(s):  
Tectona Grandis ◽  
Tectona Grandis L.F

Neste trabalho estudou-se a viabilidade econômica de um plantio de teca (Tectona grandis L.f.) submetido a desbastes. Foram utilizados os seguintes critérios de análise econômica de projetos: valor presente líquido, benefício (custo) periódico equivalente, taxa interna de retorno e valor esperado da terra. A taxa de desconto utilizada foi de 10% a.a. Os indicadores demonstraram a viabilidade econômica do plantio da teca, conforme as condições estabelecidas na análise. O plantio será inviável se houver redução maior que 25% nas receitas ou aumento superior a 35% nos custos, sendo, portanto, mais sensível às variações na redução de receitas que às variações no aumento de custos.

scholarly journals Genetic diversity in the Ethiopian garden cress (Lepidium sativum L.) using microsatellite markers

2018 ◽  
Vol 16 ◽  
pp. 32-40 ◽  
Author(s):  
Legesse Tadesse ◽  
Firew Mekbib ◽  
Adugna Wakjira ◽  
Zerihun Tadele
Keyword(s):  
Genetic Diversity ◽  
Microsatellite Markers ◽  
Lepidium Sativum ◽  
Garden Cress ◽  
Lepidium Sativum L
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