BACKGROUND AND AIMS The mangrove Rhizophora mucronata has previously been reported to lack annual growth rings, thus barring it from dendrochronological studies. In this study the reported absence of the growth rings was reconsidered and the periodic nature of light and dark brown layers visible on polished stem discs investigated. In addition, the formation of these layers in relation to preva...

Mangrove is a type of plant that can survive on muddy substrates and at relatively high levels water salinity. Information about the ecological value mangrove very important, in order to provide an overview current condition mangrove. The purpose this study determine structure community regional marine conservation area Gili Sulat. This used quadratic transect method measures are 10 m x (tree c...

Physiological factors have effects on most forest parameters such as forest classification so that understanding knowledge about this subject is important to manage forests. The forests of Sorkhake-sanjabi village with area of 1645 ha located in Eslam Abad city, Kermanshah province, Iran were selected. 23 sample plots with rectangular shape (40m*50m) were selected and the species, origin of spe...

Phytotoxicity of Daphne gnidium L. was evaluated through the effect of incorporating leaves, stems and roots biomass into soil (at 12.5, 25, 50g/Kg) and irrigation by their aqueous extracts (50g/L), on the growth of two crops (Lactuca sativa L. and Raphanus sativus L.) and two weeds (Peaganum harmala L. and Scolymus maculatus L.). Results revealed a perceptible phytotoxic effect which increased...

physiological factors have effects on most forest parameters such as forest classification so that understanding knowledge about this subject is important to manage forests. the forests of sorkhake-sanjabi village with area of 1645 ha located in eslam abad city, kermanshah province, iran were selected. 23 sample plots with rectangular shape (40m*50m) were selected and the species, origin of spe...