The flame retardancy of plywood should be improved as much possible while minimizing the impact on bonding strength plywood. Six commercial retardants and three laboratory synthesized phosphorous nitrogen were selected. E0, E1 E2 grade formaldehyde resins (UF) applied in this study to evaluate effect different curing time resin, strength, retardant performance, emission results show that additi...

abstract among rhizospheric bacteria, great attention has been paid to the group of plant growth promoting rhizobacteria (pgpr), and their role in increasing the growth and health of plants. therefore, it is used largely as inoculum all over the world. the rhizospheric bacterium, which has the genus of flavobacterium, and promotes plants growth, has been studied in recent years. in the present ...

abstract several root measuring methods have been developed until now but there is no single method of root measurement applicable for all situations. this study was conducted to evaluate the effects of a single trinexapac-ethyl (te) and paclobutrazol application on kentucky bluegrass root growth under three irrigation treatments. evaluating of root length density (rld), root surface area (rs) ...

dog rose (rosa canina l.) is one of the most important ornamental and medicinal plants which are used as a rootstock for ornamental roses such as rosa hybrid and rosa floribunda. in vitro propagation of rose has a very important role in rapid multiplication of species with desirable traits and in production of healthy and disease-free plants. micropropagation of rosa canina l. was revised, usin...

reducing nitrogen status of floriculture plants is an effective tactic in pest management by decreasing host plant quality. life table parameters and population growth rate of aphis craccivora(hemiptera: aphidiae), as well as cosmetic and qualitative parameters losses associated with aphid infestation were evaluated in relation to n fertilization levels on gomphrena globosa, under greenhouse co...