in this study, the effect of irrigation regimes and plant nutrition were evaluated as split plot arrangment based on randomized complete block design with three replications in 2010. treatments consisted of irrigation regimes at three levels: well-irrigation, irrigation disruption at vegetative growth stage, and irrigation disruption at reproductive growth stage as main plots and combination of...

In the sub-tropics, water and nitrogen are the most important factors limiting the grain yield of maize. The effect of nitrogen (N) rates and drought stress at different growth stages of maize were investigated. Nitrogen treatments consisted of 100, 150, and 200  kgN.ha-1 from the urea source while water stress treatments were composed of irrigation-off since the early 10-leaf stage to emergenc...

this study was performed to evaluate relationships among morphological traits and use of the traits to describe iranian cannabis accessions. results of the anova for the measured traits excluding the number of lateral inflorescent, displayed significant differences among accessions. the lowest plant heights were observed in sero and saqez (respectively 81.20 and 78.80) and the highest values we...

Generic delineation within and among the udoteacean genera Udotea, Penicillus, Rhipocephalus and Chlorodesmis has remained provisional because of conflicting evidence from different sets of traits, especially between reproductive structures and vegetative morphology. The ribosomal DNA phylogeny presented here contradicts the classical generic concepts within the Udoteaceae by revealing traditio...