The family Gramineaee, due to its great number of species and worldwide distribution, is one of the large and well- known family in the plant kingdom. All the species in this family are homotypes and are found wherever plant growth is possible. At present, more than 10,000 species in 620 genera belonging to 60 tribes of this family are known from all over the world. In Iran, besides many resear...

Evidence is presented to show that a given change in cell form or size may generally be brought about by a variety of patterns of local surface distortion and expansion. Structural and chemical features of the cell which are important in morphogenesis may thus be expected to relate not to form per se but to the kinetics of surface behavior which establish form. These kinetics evaluate both the ...

The paddy field ecosystem is a place for interactions between plants and animals, especially rice grasshoppers. Grasshoppers act as eaters of plants, course, become threat to agriculture so that they can reduce agricultural productivity. This study aims determine the diversity Orthoptera: Acrididae in fields Banyuasin Village, Riau Silip District, Bangka Regency habitat conditions Regency. rese...