نتایج جستجو برای: sink limitation treatments in 4 levels including cutting of flag leaf
تعداد نتایج: 24603734 فیلتر نتایج به سال:
Knowledge of regulatory mechanism of plant photosynthesis under sink-limitation occurring under various environmental conditions is still insufficient. In the present study, two different degrees of sink-limitation were imposed on soybean plants by removing either half or all developing pods and after that, photosynthetic rate and various other characteristics were investigated in fully expande...
abstract this thesis includes five chapter : the first chapter assign to establish fuzzy mathematics requirement and introduction of liner programming in thesis. the second chapter we introduce a multilevel linear programming problems. the third chapter we proposed interactive fuzzy programming which consists of two phases , the study termination conditions of algorithm we show a satisfac...
To evaluate the response of wheat genotypes to terminal drought stress and to identify drought tolerant and sensitive genotypes, 20 wheat genotypes were compared in two stress and normal conditions, in a field experiment carried out at the Experimental Farm of College of Agriculture, Shiraz University, Shiraz, Iran, as a split-plot arrangement using complete randomized blocks design with four r...
the aim of this study has been to find answers for the following questions: 1. what is the effect of immediate correction on students pronunciation errors? 2. what would be the effect of teaching the more rgular patterns of english pronunciation? 3. is there any significant difference between the two methods of dealing with pronuciation errore, i. e., correction and the teaching of the regular ...
the geopolitics of afghanistan after september 11, 2001, and its impact on iranian national security
abstract u.s. attack to afghanistan after 9/11 provided opportunities for us who tried to become the dominant power after collapse of ussr and bipolar world. thinkers like fukuyama believed american liberal democrats thought would be universally accepted without resistances. liberal democracy is the best and final model of governance; in this regard, united state has moral responsibilities for...
this study aimed at examining the effects of iranian efl learners’ anxiety, ambiguity tolerance, and gender on their preferences for corrective feedback (cf, henceforth). the effects were sought with regard to the necessity, frequency, and timing of cf, types of errors that need to be treated, types of cf, and choice of correctors. seventy-five iranian efl students, twenty-eight males and forty...
Yahya Emam1*, Hedayatallah Karimzadeh Soureshjani1, Saeed Moori and Kobra Maghsoudi1 1Department of agronomy and plant breeding, College of Agricultural, Shiraz University (Received: 3 September 2012 Accepted: 4 May 2013) Abstract: In order to evaluate some biochemical responses of bread wheat (Shiraz cultivar) and durum wheat (Yavarous cultivar) to late season water stress an...
abstract according to increase in electricity consumption in one hand and power systemsreliability importance in another , fault location detection techniqueshave beenrecentlytaken to consideration. an algorithm based on collected data from both transmission line endsproposed in this thesis. in order to reducecapacitance effects of transmission line, distributed parametersof transmission line...
Acclimation of photosynthesis to elevated CO2 has previously been shown to be more pronounced when N supply is poor. Is this a direct effect of N or an indirect effect of N by limiting the development of sinks for photoassimilate? This question was tested by growing a perennial ryegrass (Lolium perenne) in the field under elevated (60 Pa) and current (36 Pa) partial pressures of CO2 (pCO2) at l...
the present study was an attempt to determine the types of motivation and levels of foreign language learning anxiety among efl students studying at azad and state universities in kermanshah and to determine the relationship between these two factors and language proficiency and gender. to this end, the foreign language learning motivation scale, by deci and ryan )1985(, were administered to 12...
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