نتایج جستجو برای: chlorophyll and carotenoids
تعداد نتایج: 16830534 فیلتر نتایج به سال:
In order to investigating the effects of composts containing the natural zeolite- and the Mg-modified zeolites- (CNZ and CMZ, respectively) on some morphological and physiological traits, greenhouse experiments as a completely randomized design with eight treatments and three replications were performed. The results showed that the using compost especially containing Mg-modified zeolites increa...
The aggregation dependent correlation between fluorescence quenching and the electronic carotenoid– chlorophyll interactions, / S1 Chl Coupling , as measured by comparing chlorophyll fluorescence observed after twoand one-photon excitation, has been investigated using native LHC II samples as well as mutants lacking Chl 2 and Chl 13. For native LHC II the same linear correlation between / S1 Ch...
The autumnal coloration of foliage in deciduous trees represents a most spectacular phytogerontological phenomenon. It is primarily due to the progressive loss of chlorophyll coinciding with the partial retention of carotenoids. Leaf senescence is a developmental process that is aimed at the recycling of nutrients to perennial parts of the tree for reuse upon the production of new foliage in sp...
1Department of Ecology, International Center for Science, High Technology & Environmental Sciences, Kerman, Iran *Corresponding author: [email protected] Abstract: Regarding to excess entry of heavy metals to the natural resources and the importance of heavy metals removal from the environment, in this investigation, the effect of some organic acid treatment on cadmium and lead abs...
Salinity stress reduces plant metabolic activity, which reduces plant growth in saline environments. this study aimed to investigate the effect of salinity stress as one of the limiting factors of plant growth and the effect of nanoparticles on stress conditions as one of the auxiliary factors in plant control against stressful conditions by studying physiological factors such as soluble sugars...
The increasing commercial production and the broad usage of engineered nanoparticles (ENPs) have led to concerns over the potential adverse impacts of these ENPs on biota in natural environments. Silver nanoparticles (AgNPs) are one of the most important and widely used ENPs which enter natural ecosystems. In this study we examined the effects of AgNPs on growth and some physiological parameter...
To investigate the effects of salicylic acid (0, 10, 15 and 20 µM) on some physiological characteristics of Fenugreek (Trigonellafoenum- graecum L.) under drought stress (0, -3 and -6 Bar) a Factorial experiment based on completely randomized design with three replications was employed in research greenhouse of Shahid Bahonar University of Kerman in 2012 growing season. Results show...
Information about the effect of endophytic fungus Piriformospora indica on wheat response to stress conditions is very limited and sometime contradictory. This greenhouse research was conducted in a hydroponic culture to investigate the inoculation effects of mycorrizhal-like fungus, P. indica, on enzymatic and non–enzymatic defense mechanisms of wheat (Triticum aestivum L., cv. Niknejad)...
Nowadays medicinal plants are considered as important economical plants. Recently, due to the extension of saline lands, shortage of appropriate agricultural farms and economical value of medicinal plants. There is a growing interes of identifying salt tolerant medicinal plants. A cheap time saving and reliable way for selecting proper salt tolerant plants can be achieved by culturing these pla...
In order to investigate the effects of foliar application of salicylic and ascorbic acids on some physiological characteristics of soybean (Glycine max L. cv. Williams) under salinity stress, a factorial pot experiment was conducted based on completely randomized design with four replications in the summer 2012 in the Yasouj University. Factors were included of four levels of salinity (0, 50, ...
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