zinc (zn) and copper (cu) are essential elements and increased plant growth in low concentrations. while high concentrations of these elements as a limiting factor, can cause adverse symptoms on the plants. in the present study, the uptake of micronutrient and macronutrient by pennyroyal were studied in a zn and cu deficiency and toxicity in soil. three levels of copper (0, 5 and 25 mg/kg) and ...

to determine the effects of drought stress and fe and zn spraying on two annual medics, namely, medicago polymorph cv serena and medicago scutellata cv comertial, a field experiment as a split factorial based on a randomized complete blockdesign in 3 replications in allborze agricultural research center, in karaj was conducted. spraying treatments include distilled water (control), fe, zn and f...

Prickly pear plant is widely cultivated in arid and semi-arid climates. Its fruits are rich polyphenols, proteins, vitamin C, minerals, fatty acids, amino acids. The oil extracted from the seeds also has a significant proportion of linoleic acid (ω6) might be employed as therapeutic raw material. potential enhancing fruit yield, increasing bioactive compounds pulp, improving unsaturated content...

introduction:toxigenic fungi such as a. flavus grow widely in peanut and produce aflatoxins, a group of carcinogenic metabolites. aflatoxin produced in peanut differed from the genetic variety of plant. the high humidity and moderate temperatures in the subtropical caspian littoral of northern iran could increase the growth of a. flavus and the production of aflatoxin. the objectives of this st...

black seed is one of important ancient medicinal plants with various properties in traditional medicine. in order to evaluate microelements (fe and zn) effects on seed yield and yield components of black seed in salinity stress, a complete block design with three replications was conducted in esfahan agricultural and natural resources center during 2013-2014. three water salinity treatments wer...