نتایج جستجو برای: relative growth rate

تعداد نتایج: 2001705  

Journal: :Journal of Group Theory 2021

Abstract We introduce a new invariant of finitely generated groups, the ambiguity function, and we prove that every acylindrically hyperbolic group has linearly bounded function. use this result to relative exponential growth rate lim n → ∞ <...

Journal: :Annals of botany 2002
William A Hoffmann Hendrik Poorter

In classical growth analysis, relative growth rate (RGR) is calculated as RGR = (ln W2 - ln W1)/(t2 - t1), where W1 and W2 are plant dry weights at times t1 and t2. Since RGR is usually calculated using destructive harvests of several individuals, an obvious approach is to substitute W1 and W2 with sample means W1 and W2. Here we demonstrate that this approach yields a biased estimate of RGR wh...

Journal: :Analytical biochemistry 1998
G B Fogel C F Brunk

Relative growth is often used as a phenotypic measure to distinguish mutant and wild-type yeast or bacterial strains. Differential growth as a function of temperature is a convenient and accurate means of analyzing differences between strains. Slight differences in the genotypes of two strains frequently result in differential growth of the two strains as a function of temperature. We have deve...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2010
mohammad reza khorsand mahmood habibian navid rohani ali reza zarei

a semi-batch crystallization system is used to determine growth kinetics and morphology of barium carbonate crystals, under a constant ph value and constant temperature in the various relative supersaturations. results show that crystal growth rate satisfies a first-order kinetic expression at high relative supersaturation, while at relative supersaturation values lower than 3,  the kinetic exp...

ابوطالبیان, محمد علی , احمدوند, گودرز, دادرسی, ولی الله , سیدی, محسن, موسوی, سید سعید ,

In order to study of effect of on-farm seed priming and irrigation interval on growth indices of two corn cultivars, an experiment was conducted at the research farm of agriculture faculty of Bu-Ali Sina University, Hamedan-Iran in 2011. The experiment was a split plot factorial based on completely randomized block design with three replications. Experimental factors were including irrigation, ...

In order to evaluate the impact of different amounts of nitrogen fertilizer on growth and yield of two forage sorghum cultivars, a 2-year field experiment was carried out at the College of Agriculture, Shiraz University, Shiraz, Iran during 2010 and 2011 growing seasons. Two factorial experiments were carried out in randomized block design with three replicates, in which the treatments included...

عسکری, مهری, امینی, فریبا, قنبر زاده, زهره ,

Fariba Amini*, Zohreh Ganbarzadeh and Mehri Askari * Department of Biology, Faculty of Sciences, Arak University, Arak 38156-8-8349, Iran (Received: 10 September 2012 Accepted: 4 May 2013) Abstract: Salinity is an environmental stress and is the main limiting factor in the efficiency of agriculture products in the world. Salsola arbuscula is a halophyte plant and resistant to ...

Hashem Noferesti Mahdi Soltani Pooneh Ebrahimi حجت جعفریان,

Bacillus spp. are Gram-positive spore-forming bacteria used commercially as probiotics in the larviculture of fish. Bacillus spp. can act positively on cultured organisms by enhancing their survival and growth, stimulating their digestive and immune systems, and improving water quality. In this present study, grass carp larvae were fed on Artemia urmiana, Artemia fransiscana and Artemia parthen...

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