Chlorophyll fluorescence (Chf) emission allows estimating the photosynthetic activity of vegetation -a key parameter for the carbon cycle modelsin a quite direct way. However, measuring Chf is difficult because it represents a small fraction of the radiance to be measured by the sensor. This paper analyzes the relationship between the solar induced Chf emission and the photosynthetically active...

Wetlands are a critical component of the landscape for climate mitigation, adaptation, biodiversity, and human health prosperity. Keeping an eye on wetland vegetation is crucial due to it playing major role in planet’s carbon cycle ecosystem management. By measuring chlorophyll fluorescence (ChF) emitted by plants, we can get precise understanding current state photosynthetic activity. In this ...

In laboratory experiments, the varietal specificity of formation adaptive reactions 10-16 day-old seedlings three varieties spring wheat under chloride salinization (1.3%) according to daily dynamics chlorophyll fluorescence parameters (ChF) was established. The informative value ChF Y(II), ETR, qP, Fv/Fm, Fv/Fo, Y(NPQ), qN and Y(NQ) as reliable biomarkers for early assessment resistance at lev...

to evaluate the effects of methanol and drought stress on chlorophyll fluorescence parameters, chlorophyll and relative water content in sugar beet, a study was conducted in 2008 in maahdasht (karaj, iran). aqueous solutions of 0 (control), 7, 14, 21, 28, 35% (v/v) methanol with each solution containing 0.2% glycine and a second factor, namely drought stress (irrigation after 70% depletion of a...

in order to locate the qtls involved in the inheritance of agronomical, physiological and metabolitical indicators of drought tolerance in barley, an experiment was carried out using a wheat-barley disomic addition lines. this research was conducted in 2003-2004 at the dry land agricultural research institute, sararood, kermanshah, iran. the results of analysis of variance revealed highly signi...

abstract planting of olive (olea europaea l.) tree due to salt and drought tolerance and ever green habit increasingly is considered in urban landscape in recent years. the low resistance to cold has been a major problem in using this tree in temperate and cold zones. so, determination of frost resistance cultivars is one of the important measures for use of this tree in urban landscape. to eva...

in order to study the effect of foliar zinc spraying on photosynthetic pigments and yield of chickpea under water stress conditions, a factorial experiment carried out based on randomized completely block design (rcbd) with three replications in university of mohaghegh ardabili agricultural research station in 2012. the treatments consisted of three levels of irrigation (irrigated at planting, ...

  Abstract Two experiments with factorial arrangements on the basis of randomized complete block design in three replications were conducted in 2007 and 2008, to evaluate chlorophyll content index (CCI), fluorescence of chlorophyll, proline content and grain yield of three soybean cultivars (Williams, Zan and L17) under a non-saline (control) and three saline (3, 6 and 9 ds/m NaCl) conditions...