The use of plant-growth-promoting rhizobacteria (PGPR) can be one option for mitigating the impact abiotic constraints on different cropping systems in tropical semi-arid region. Studies suggest that these bacteria have mechanisms to mitigate effects water stress and promote more significant growth plant species. These involve phenotypic changes growth, conservation, cell protection, damage res...

the effects of irrigation methods, various levels of water and nitrogen fertilizer on quality of cotton were studied at hashemabad cotton research station of gorgan in 2008. the experiment was conducted in split-split plot design with three replications. irrigation methods of furrow and sprinkler were main plots, various levels of water of 0%, 33%, 66%, 100% and 133% were subplots plots and var...

(Population structure of Eschweilera coriacea (DC.) S. A. Mori in forest fragments in eastern Brazilian Amazonia). The population structure of a common canopy tree was examined in three sites to investigate the possible effects of forest fragmentation in eastern Amazonia. Evidence for the escape hypothesis of differential seed/seedling survival was evaluated. Two 1 ha plots were established at ...

This experiment was conducted at Azad University experiment station to evaluate the effects of planting date and time of nitrogen application on yield and sugar content of sweet sorghum in 2003. Four planting dates (May 4, March 19, June 3 and June 18) and three stages of nitrogen application (3-5/8 leaf stage, boot stage and soft dough stage) were assigned to the main and subplots, respectivel...

In order to study effects of nitrogen fertilization and cultivars on some of traits of different barley an experiment was conducted at Isfahan in 2012. The experimental was split plot in a randomized complete block design with three replications. In this experiment, different levels of nitrogen in the main plots included four levels (0, 50, 100 and 150 N kg/ha (urea)) and barley cultivars inclu...

The extensive raising of livestock on grasslands is a relevant economic activity in northern Mexico. These are regions high climatic uncertainty and have extreme weather events, which requires the exploration technological innovation to mitigate negative impacts these agroecosystems. aim this study was evaluate two grass species using planting methods types soil moisture retainers determine the...

Grazing exclusion (GE) is the most effective rangeland restoration technique which facilitates species diversity and forage quality. This study aimed at assessing short-term impact of GE continuously grazed on relative frequency, dry matter yield nutritive value dominant grasses in an area invaded by Euryops floribundus. A plot 2.5 ha was measured boundaries demarcated using tape measure steal ...

in this study the response of 9 rapeseed genotypes were evaluated at the seedling stage using different irrigation levels (50, 70 and 100% fc). a factorial experiment based on rcbd was conducted in the research greenhouses of urmia university with four replications during summer of 2013. some physiological traits such as relative water content, stomatal conductance, transpiration, photosynthesi...

this study was designed to investigate the effect of p. fluorescens fy32 inoculation on the activities of some antioxidant enzymes and ion concentration of two canola cultivars (sarigol and hyola308) under salinity stress (150 and 300 mm nacl) in the greenhouse condition (fall 2012, dept. of plant breeding and biotechnology, faculty of agriculture, university of tabriz). the experimental design...

Abstract The research was conducted to study the performance of cucumber under protected conditions with different plastic mulches. This experiment in a split plot design, having irrigation levels as main and mulches subplots. revealed that mulching helped maintain soil moisture higher than bare black mulch showed temperature (23.3%) 100% irrigation. Plant height yield also influenced by mulchi...