Search Results for : species
The butterflies of Ngazidja and their main habitats significances
Ngazidja, the biggest island of Comoros, is characterized by the higher level of endemism that is threatened by the rapid habitat degradation. This study was carried out to investigate the butterfly fauna of the forests of the Karthala (North and North-eastern slopes) and La Grille (Eastern slopes) in order to help the biodiversity conservation and […]
Effect of drought stress on germination in 18 population of thyme (Thymus kotschyanus)
Thyme is an important medicinal plant of Iran that have Thymol and Carvacrol and used for antimicrobial and antibacterial agent. The present study was carried out to determine the effect of drought stress in 18 populations of this species. The environmental stress such as, drought are serious obstacles for medicinal plants and field crops in […]
Evaluation of arid rangelands degradation and productivity in response to variable precipitation and land use changes
Several changes have impacted the ecosystem at northwestern coast of Egypt include transformation from extensive to intensive agro-pastoral systems, increasing the rate of urbanization,and frequent drought periods. This study was carried out at the northwestern coast of Egypt to evaluate changes in vegetation composition and rangeland productivity at Wadi Umm Ashtan in 2004 and 2015 […]
Principle of mechanical properties of Oak (Quercus castaneifolia C.A. Mey) at different regions of northern part of Iran
In this study, mechanical properties of Oak (Quercus castaneifolia) at four different locations of Caspian forests (North of Iran) were investigated. The locations were including Asalem (37°56´55. N, 48°52´84. E), Visar (36°28´3.N, 51°32´5. E), Sangdeh (36°05´28. N, 52°25´41. E) and Golestan (36°25´41. N, 51°35´25. E). The test materials were derived from randomly chosen trees. Mechanical […]
DNA sequence analysis, morphology and pathogenicity of Fusarium oxysporum f. sp. lentis isolates inciting lentil wilt in Pakistan
Fusarium wilt of lentil (Lens culinaris Medikus) incited by F. oxysporum f. sp. lentis causes huge lentil yield losses worldwide. Understanding morpho-molecular and pathogenic variation of F. oxysporum isolates is of utmost importance, which has not been previously studied in Pakistan. In this study, extensive two year (2011-12 and 2012-13) wilt surveys of seven districts […]
Estimation of quality of water of river drino (albania) based on analysis of diatoma
The main objective of this paper is to investigate the genera of diatoms, which were identified in the Drino river in the period 2011-2012 in the Gjirokastër region. A classification of the quality of the water through the bio-indicator diatoms was also carried out. The study area included 5 sampling sites along the Drino River. […]
Sequence analysis of the acetylcholinesterase 1 translated from messenger ribonucleic acid of the nervous system of crayfish (Cherax quadricarinatus)
Crayfish are the animal models used as biomarkers of exposure to pesticides. Some compounds such as organophosphates work by blocking Acetylcholinesterase (AChE), an enzyme that hydrolyzes the neurotransmitter acetylcholine on cholinergic synapses. In insects recurrent exposure to pesticides produces resistance, and the molecular analysis has identified mutations as the cause of this resistance. Till date, […]
Screening of wheat germplasm for seed associated fungi in geographical areas of Pakistan
Wheat (Triticum aestivum L.) seeds (100 accessions) were selected on the basis of different geographical areas of Pakistan. Isolation and identification of seed born fungi were conducted according to standard blotter test. A total of five major seed borne fungi including Alternaria alternata, Aspergillus niger, Fusarium sp., Drechslera sp. and Phytophthora sp. were isolated from […]
Diversity of spiders along an elevational gradient in Mt.Pinukis, Zamboanga del Sur, Philippines
Spiders play vital ecological service of controlling many insect pest populations. However, there is limited information on the species richness, evenness, relative abundance, and guild structure of spiders in Mt. Pinukis, Zamboanga del Sur. Sampling was conducted for nine field days in three different elevations (low, middle, high) using beat netting, vial tapping, and pitfall […]
Allelic variation of glutenin and gliadin genes in Iranian einkorn wheat
The glutenin and gliadin characteristics of wheat germplasm have a potential value and understanding the allelic distribution in glutenin and gliadin loci is very important for any wheat breeding program. In the present study, we reported the allelic status at Glu-A3 and Gli-A2 loci among a set of 40 accessions of T. boeoticum and T. […]