Quantitative analysis of the species composition and succession law a plant community in coastal reclamation area is great significance for revealing construction coexistence mechanisms, provides basis rational use conservation areas. Through investigation natural communities Dongtai adjacent national nature reserves Jiangsu Province, eastern China, were studied. A quantitative method was explo...

BACKGROUND In Anzali Lagoon, there are some endemic and exotic fishes. The present study was conducted to compare the parasitic fauna of Blicca bjeorkna, as an endemic fish and Hemiculter leucisculus, as an introduced fish to the lagoon. METHODS A parasitological investigation was done on 78 specimens of B. bjoerkna and 114 of H. leucisculus. The fishes were collected from August 2009 to Apri...

This is the first revision in more than 100 years of African genus Pseudohydrosme , formerly considered endemic to Gabon. Closely related Anchomanes distinct from because its 2-3-locular ovary (vs. unilocular), peduncle concealed by cataphylls at anthesis and far shorter spathe exposed, exceeding spathe), stipitate fruits viviparous (asexually reproductive) roots sessile, non-viviparous), lack ...

Cropping under conservation agriculture (CA) has become increasingly attractive among farmers in recent years. However, weed control may be more difficult during the transition to CA from conventional establishment methods due reduction tillage intensity. Conversely, changes dynamics can alter seed bank longer run. In Bangladesh’s intensively cropped rice-based rotations, nature of shifts over ...

By the end of the 1980s, black leaf streak disease caused by Mycosphaerella fijiensis was present in all continents where bananas or plantains were grown, although distribution in some regions was limited to a few countries. In this presentation, the spread of the disease during the 1990s in several countries and regions, and the important socio-economic consequences are discussed. From 1990 to...

By the end of the 1980s, black leaf streak disease caused by Mycosphaerella fijiensis was present in all continents where bananas or plantains were grown, although distribution in some regions was limited to a few countries. In this presentation, the spread of the disease during the 1990s in several countries and regions, and the important socio-economic consequences are discussed. From 1990 to...