peach (prunus persica l. batsch.) is produced in most areas of iran, where flowering is hindered by temperature. using plant growth regulators to delay bloom is a suggestive measure to avoid frost damage. the objective of this study was to determine the effects of methyl jasmonate (mj) and salicylic acid (sa) on peach bloom delay and yield.  this study evaluated the applications of mj 0 (contro...

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...

Split plot design experiments were conducted to assess the performance of growth regulating compounds for mitigating moisture stress and incidence Brown Plant Hopper (BPH) in rice. The main treatments (4) comprised free control (M1), during panicle initiation stage alone (M2), flowering (M3), both stages (M4). sub-plot (5) foliar application including chlormequat chloride at 200 ppm (S1), mepiq...

This study was conducted to investigate the mitigation of drought stress by foliar application salicylic acid in mung bean (Vigna radita). Treatments comprised three which are  control treatment without , at %50 flowering stage  and pod formation stages (SA) concentrations are 50 ppm, 100ppm,150 ppm two times, first spray after 30 days second 40 sowing. Irrigation missing stage, affec...

Damage caused by water shortages leads to physiological and biochemical changes in metabolism of plants and make them predispose to attack by pests and diseases and reduce the quality of the crops. In order to evaluate the effect of supplemental irrigation on safflower fly (A. helianthi) population of safflower cultivars, an experiment conducted as a split plot based on randomized complete bloc...

to study the effects of integration of mechanical control with herbicides on yield and yield components of soybean (glycine max) a field experiment was conducted during 2003-2004 at the research farm of agronomy department, agriculture campus of tehran university, karaj. a randomized complete block design (rcbd) of 18 treatments was applied, each treatment being replicated 3 times. treatments i...

this research was done in hydroponic environment in greenhouse at 3 stages (vegetative, flowering and full product) in 5 concentrations of cd (0.1, 0.3, 0.9, 2.7, and 10 mm) for investigating physiological and biological effects. this study revealed that the increase of cd concentration in understudy treatments causes the 49% reduction of sugar solution in 10 mm treatment. on the other hand, th...

This research was done in hydroponic environment in greenhouse at 3 stages (vegetative, flowering and full product) in 5 concentrations of Cd (0.1, 0.3, 0.9, 2.7, and 10 mm) for investigating physiological and biological effects. This study revealed that the increase of Cd concentration in understudy treatments causes the 49% reduction of sugar solution in 10 mm treatment. On the other hand, th...