In a test of early genetic evaluation of the growth potential of 14 families of open-pollinated Douglas-fir (Pseudotsuga rnenziesii [Mirb.] Franco), measures of growth and phenology of seedlings grown in a coldframe were correlated with height of saplings in evaluation plantations at 9, 12, and 15 years. Fifteen-year height was most strongly correlated with measures of seedling budset (r = -0.5...

weather and climate parameters and their effects on crops, is one of the most effective factors in yield increase. agro-climatic studies could be used to determine the potential of various regions and the exploit these resources to the maximum possible extent. in this study, in order to evaluate the agricultural climate of spring canola cultivation in selected stations in hamedan province, the ...

studying of climatic elements  are one of the most important factors   influencing on agricultural crops  production and developing of agriculture activities in every region that led to increasing production . by studying of agro climatology  can be determined potential facilities in different areas  and used optimum of  facilities . this research was established  by determining  temperature po...

Multitemporal processing of synthetic aperture radar imagery, e.g. for the extraction of a soil moisture index, requires normalization of acquisitions from different locations in space to a common incidence angle. Incidence angle dependence of backscatter is known to depend on the amount of aboveground vegetation, and can thus be expected to vary seasonally as a result of vegetation phenology. ...

The connection between nephropathia epidemica (NE) and vegetation dynamics has been emphasized in recent studies. Changing climate has been suggested as a triggering factor of recently observed epidemiologic peaks in reported NE cases. We have investigated whether there is a connection between the NE occurrence pattern in Belgium and specific trends in remotely sensed phenology parameters of br...

The number of calendar days since sowing is a commonly used means of expressing time. Using calendar days can be relevant for comparing genotypes in a given experiment, if environmental conditions remain constant throughout the plant culture. However plant development is highly dependent upon environmental conditions. As a consequence, using calendar days does not allow comparing genotypes that...

in order to evaluate phenological characteristics, yield and yield components of 18 cold tolerant lentil genotypes in fall planting under supplementary irrigation, an experiment was carried out based on randomized complete block design in 2006-2007 at research farm of college of agriculture, ferdowsi university of mashhad. irrigation was performed three times: immediately after sowing, 20 days ...

the mating disruption technique has been widely used for the control of several lepidopteran pests. in the present study, we assessed the efficiency of two formulations of splat neo, a wax emulsion containing e-11-hexadecenol, with and without the insecticide cypermethrin, in affecting mating disruption of neoleucinodes elegantalis (guenée). we also determined the best phenological age or stage...

weather and climatic parameters and their impact on farming plants are one of the foremost effective factors on improvement of crop yield. the potential facilities of various regions may be determined with agroclimatic study and exploit maximally from these facilities. in order to evaluate agroclimate of colza cultivation throughout the selected substations at hamedan province in this current i...