introduction since discovery of food, clothing and shelter, human wanted to improve their physical sufferings, and using experience separated toxic plants from non – toxic ones and medicinal herbs from non – medicine. medicinal herbs are agricultural products which have a very important role in the health of people in society. among the medicinal herbs, fennel with scientific name (foeniculum v...

drought stress is one of the most important abiotic stresses which can affect the growth of a plant, thereby curbing crop yield. identification of effective morphological traits is the main aim of each breeding program. our objective was to identify agronomic traits associated with changes in grain yield of wheat under irrigated and drought conditions. to address this objective, grain yield and...

Cumin (Cuminum cyminum L.) is one of the most important herbs and medicinal plants that allocate main part of medicinal plant export in Iran. This investigation was conducted to study the effects of drought stress on important agronomic traits of different cumin ecotypes from the major cumin cultivation of the country. Forty-nine ecotypes from different regions of Iran were planted in a simple ...

Drought is one of the limiting factor in common bean, development of common bean varieties that adapted to drought situations is the main focus for improving food crops. In this study, 25 genotypes of common beans (Phaseolus vulgaris L.) were grown under drought stress and non-stress conditions. The field work was conducted at Melkassa Agricultural Research Center during the off-season that lai...

Results from a four-year field experiment were used to evaluate the effect of conventional tillage (CT) and no-tillage (NT) systems on yield, selected yield crop structure elements, weed infestation, contents fat glucosinolates in seeds winter oilseed rape (Brassica napus L. ssp. oleifera Metzg). The study proved beneficial NT system seed only during precipitation shortage growing season. In ye...

to evaluate the genetic diversity in twenty barley genotypes, an experiment based on randomized complete block design with three replications was done at agriculture researches station of ardabil, iran in 2009-10. investigated traits of this study was included days to flowering, plant height, 1000 seed weight, number of infertile tiller, number of seed per spike, harvest index, days to maturity...

this research was conducted to study the effects of water deficiency stress, nitrogen application rates, and plant population on water use efficiency and nitrogen of oily sunflower in 2007-2008 agriculture and research center of west-azerbaijan. the study was consisted split-split-plot experiments using randomized complete block design with 3 replications. the factor main was consisted irrigati...