to cope with cold stress, winter cereals regulate their development through adaptive mechanisms such as vernalization requirement. eight wheat and four barley cultivars were planted to determine the relationship between vernalization fulfilment and expression of cold tolerance under both field and controlled conditions. cultivars were planted at maragheh and karaj agricultural research stations...

during grain development, appropriate water status of soil has key importance for starch accumulation in grains and hormone changes. for this, the study carried out on two iranian wheat cultivars pishtaz and karaj 3 in a factorial experiment based on randomized complete block design with three replications under irrigated and drought in a field experiment at research farm of agriculture college...

for evaluation of drought tolerance of sugar beet genotypes by assessment of the drought tolerance indices under mild and severe stresses, furrow irrigated field experiments were carried out at zarghan research station in 2002 and 2004, and at motahari research station (located inkaraj) in 2002, 2003, and 2004. the experimental design was split plot, with a randomized complete block arrangement...

phase transition from vegetative to reproductive growth is an important character for winter wheat under cold conditions because it decreases the ability of wheat plants to maintain frost tolerance. reproductive development in winter wheat is triggered by fulfillment of vernalization requirements. this study was conducted to determine the inter-relationship between developmental stages and free...

the effects of grafting under conditions of deficit irrigation, on content of minerals leaf and root, evalutate in a field experiment under deficit irrigation was conducted with split plot in a randomized complete block design with three replications, in the research field of higher education institution imam khomeini (ra) under the ministry of agriculture in karaj, during 2014. in this study, ...

this study was conducted in the research field of iranian research institute of plant protection in karaj as strip split plots with three replications. the first factor: tillage and no-tillage, and the second factor: herbicide: glyphosate 6 l/ha, 2,4-d + mcpa 2l/ha, glyphosate + 2,4-d + mcpa (6 + 2 l/ha), glyphosate 3 l/ha, 2,4-d + mcpa 1 l/ha, glyphosate + 2,4-d + mcpa (3 + 1 l/ha), and contro...

a practical and new method for the synthesis oxindole substituted pyrrolo[2,3-d]pyrimidines by the condensation of isatin, acetophenone and 6-amino-uracil under ultrasound irradiation conditions at 60 °c was described. the reaction was developed via a sequential tandem process to afford the oxindole substituted pyrrolo[2,3-d]pyrimidines in good to excellent yields. all reactions performed effic...