We examined the adjustment of leaf angle (L theta) and foliar chlorophyll and xanthophyll chemistry in Eucalyptus nitens (Deane and Maiden) Maiden seedlings maintained in various nitrogen (N)-supply treatments over a 6-month period. Adjustment of L theta toward the vertical was greatest under conditions of foliar N deficiency and became incrementally more horizontal with increasing foliar N con...

Water and nitrogen supply are the two primary factors limiting productivity of wheat (Triticum aestivum L.). In our study, two winter wheat varieties, Xinong 979 and large-spike wheat, were evaluated for their physiological responses to different levels of nitrogen and water status during their seedling stage grown in a phytotron. Our results indicated that drought stress greatly reduced the ne...

abstract background: accurate methods of radiation therapy dose calculation. there are different monte carlo codesfor simulation of photons, electrons and the coupled transport of electrons and photons. mcnpis a general purpose monte carlo code that can be used for electron, photon and coupledphoton-electron transport.monte carlo simulation of radiation transport is considered to be one of the ...

Anthropogenic impacts on water resources, especially by ??nutrient discharge, is a worldwide problem in marine coastal areas. In this context, seaweed cultivation aquaculture wastewater can be considered as an alternative for effluent mitigation, where the biomass becomes source of valuable compounds. The current study examined potential use seaweeds Ulva pseudorotundata and rigida to remove nu...

Sulphurous acid derived from sulfur dioxide (SO2) emission leads to the pollution of irrigation water and inhibition plant growth. The safe concentration threshold NaHSO3 in plants should be clarified promote agricultural production. In this study, Orychophragmus violaceus seedlings were used as experimental materials five concentrations (i.e., 0, 1, 2, 5, 10 mmol·L−1) simultaneously sprayed on...

BACKGROUND AND AIMS In crops other than sugarcane there is good evidence that the size and activity of carbon sinks influence source activity via sugar-related regulation of the enzymes of photosynthesis, an effect that is partly mediated through coarse regulation of gene expression. METHODS In the current study, leaf shading treatments were used to perturb the source-sink balance in 12-month...

The ideal growth and development of linseed plants depend on receiving the necessary nutrients during growing season when they are grown. Flax's yield oil content increase using a foliar spray containing micronutrients. This study aimed to determine how iron (Fe) treatment affected flax its constituents. experiment was set up at adoptive research farm Sargodha in randomized block design three r...

The cotton (Gossypium herbaceum L.) was analyzed for changes in physiological and morphological parameters under the influence of water stress. The deleterious effect of water stress i.e., drought in cotton plants was mainly targeted towards physiological and morphological characteristics. The gas-exchange parameters of net photosynthesis (P N ), stomatal conductance (g s ), electron transport ...

Effects of leaf rolling (LR) on maize photosynthesis under severe drought stress were studied in two cultivars with opposite drought responses, Batem 56-55 (drought tolerant) and Batem 51-52 (drought sensitive). Drought stress and artifi cial prevention of leaf rolling (PLR) were applied at grain fi lling stage for 30 days. LR in Batem 56-55 occurred later than in Batem 51-52. Leaf water potent...