Search Results for : species

Aquatic Insect Similarity Connecting Natural Wetland Habitat and Ricefield for Ecological Rice Production in Agusan Marsh in Mindanao, Philippines

This study describes the relationship of the natural wetland habitats in Agusan Marsh to nearby rice fields and its implication to ecological rice production. Aquatic insects play multiple roles in the ecosystem such as predators, prey to other animals and decomposers which help in maintaining ecological balance. Results revealed that the diversity of odonates was […]

Taxonomic cheracterization of some moss families of Mansehra, Pakistan

This paper deals with the taxonomic studies of the representative species of five moss families; Enclyptaceae, Hedwigiaceae, Hypopterygiaceae, Splachnaceae and Timmiaceae reported from Mansehra District, Pakistan. Among these Enclyptaceae and Timmiaceae are acrocarpous while Hedwigiaceae, Hypopterygiaceae and Splachnaceae are Pleurocarpous. The aim of this study was the critical taxonomic characterization of the rare species of […]

Plant soil symbioses, role in Terga (West of Algeria) sandpit rehabilitation

Intensive exploitation of Terga sandpit situated in west of Algeria had led to degraded ecosystem. The objective of this work consists in a strategy of site revegetating by introducing native species Schinus terebinthifolius associated or not to two nitrogen fixing species Retama monosperma and Lotus creticus. Physico-chemical soil analysis and mycorrhyzal soil infectivity determination were […]

Enzymes activity and content of antioxidants in leaves of halophytes from saline soils of Kumisi lake

The purpose of the given study was to investigate characteristics of antioxidant system and other biochemical indices of some salt resistans species growing on saline soils of Georgia. Activity of antioxidant enzymes (peroxidase and catalase) and nitrate reductase, also low molecular antioxidants (proline, ascorbic acid, soluble phenols, anthocyanins and carotenoids), and of content of total […]

Haemoglobin Oxidation: A possible mechanism of crude oil toxicity in fish

Haemoglobin oxidation occurs in erythrocytes. It involves the loss of an electron from the ferrous (Fe2+) ion to the ferric (Fe3+) state in the presence of an oxidant. Crude oil, which contains polycyclic aromatic hydrocarbons (PAHs), has the capacity of serving as oxidants to fish haemoglobin to yield the methaemoglobin (Fe3+) species which has lost […]

Genetic diversity and association analysis for different morphological traits in Capsicum annuum L.

Capsicum annuum L. is the extensively cultivated species of peppers (chilies) in all over the world. Its fruits are used for spiciness (capsaicin) and color (capsanthin) in our daily foods. Pakistan is the leading chili consuming country. Genetic divergence among 25 accessions (local and exotic) collected from Ayub Agriculture Research Institute (AARI) Faisalabad, Pakistanwas estimated […]

Effects of Glomus intraradies and Thricoderma harzianum on colonization and the growth parameters of Corylus avellana L. seedlings under nursery conditions

In this research, we investigated the influence of Glomus intraradies and Thricoderma harzianum species on colonization and the growth characteristics of Corylus avellana seedlings under nursery conditions. The growth parameters (height, collar diameter, leaf area, dry weight of root and shoot, total dry seedling and quality index seedling) of Corylus avellana seedlings were evaluated 7 […]