in order to determine the best traits related to indirect increasing of grain yield, five wheat genotypes (zagros, tajan, durum cul., kohdasht and n-81-18 line) were evaluated by using randomized complete block design (rcbd) with 4 replications in research field of gorgan university of agricultural sciences and natural recourses. the studied traits included leaf area index (lai), crop growth ra...

Abstract A field experiment was carried out during the seasons 2016 and 2017 in farm of Department Field Crops Science, College Agricultural Engineering Sciences-University Baghdad to evaluate effect of(Aminopyralid + Flurasulam, Coldinafop-propargyl Flucarbazone-sodium) herbicides seeding rate (100, 125 150) Kg.ha -1 interaction between them growth characteristics, grain yield components wheat...

genetic variation is necessary factor for continued breeding and increasing genetic gain from selection in crop plants. to evaluate genetic variation and genetic gain from selection in bread wheat, 45 genotypes consisting of 9 cultivars and their 36 crosses were grown in a randomized complete block design with three replications in research farm of isfahan university of technology. the phenotyp...

TAKEUCHI (1959) has studied on red and white muscle fibres of fresh water fish teleost (snake fish) and observed that (1) there was no difference between the membrane potential of the red muscle and that of white one (60-70mV) , (2) the red muscle did not generate the spike but did only junction potential, (3) the white muscle generated the spike but usually did not overshoot the resting potent...

Stimulus selectivity of sensory neurons is often characterized by estimating their receptive field properties such as orientation selectivity. Receptive fields are usually derived from the mean (or covariance) of the spike-triggered stimulus ensemble. This approach treats each spike as an independent message but does not take into account that information might be conveyed through patterns of n...

In vitro intracellular recordings were made from neurons in the rat midbrain slice. Two neuronal types could be distinguished in dopamine-containing (DA) midbrain regions based on electrophysiological criteria. One neuron type exhibited short duration action potentials (less than 1.5 msec), could fire at high frequencies (greater than 10 Hz), and exhibited either phasic or burst firing patterns...