A pot experiment was conducted in the screen of the National Research Centre during two successive seasons to study the response of periwinkle plants to foliar spray with tryptophan or putrescine at the concentrations 10 M, 10 M or 10 M. The obtained data indicated that exogenous application of tryptophan or putrescine on periwinkle transplants considerably increased plant growth at successive ...

The Swede midge, Contarinia nasturtii Kieffer (Diptera: Cecidomyiidae), a common insect pest in Europe, is a newly invasive pest in North America that constitutes a major threat to crucifer vegetable and field crops. Chemical control of Swede midge with synthetic insecticides under laboratory conditions indicated that insecticides generally could provide very effective control; however, insecti...

Two field experiments were conducted to evaluate the effects of phosphorus level and Agrosol treatment on pea (Pisum sativum L.) yield quantity and quality, under drip irrigation system, during 2012 and 2013 seasons. Experiments were carried out in the Research and Production Station, National Research Centre, El-Nobaria Site, Beheara Governorate, Delta Egypt. Phosphorus fertilizer was applied ...

Drought is a major abiotic stress, severely affecting the physiological processes and growth of plants. The present investigation aimed to evaluate impacts drought stress with three periods for irrigation: every 3 days(control), 6 days, 12 days foliar spray different concentrations ascorbic acid (0, 75, 150, 225) mg.L-1 on wheat plant. Pots experiment was conducted as completely randomized desi...

oleander was tested as biomonitoring plant for surfactant polluted marine aerosol. potted plants in the greenhouse were sprayed once a week for 5 weeks with seawater containing sodium dioctyl sulfosuccinate (sds) at the following concentrations: 5, 10, 15, 30, 60, 120, 250, 500 mg/l. a significant correlation was found between sds concentration in the spray and surfactant deposit on the leaves ...

to investigate the effects of methyl jasmonate growth regulators on growth characteristics, fruit number and fruit yield of ‘semsuri’ melon, an experiment at the field of shahid bahonar university was conducted in summer 2012. melon (cv. ‘semsuri’) is widely cultivated in iran and therefore increasing the fruit yield and quality of this cultivar is necessary. some growth regulators including me...

BACKGROUND Nutrient-containing nanomaterials have been developed as fertilizers to foster plant growth and agricultural yield through root applications. However, if applied through leaves, how these nanomaterials, e.g. γ-Fe2O3 nanoparticles (NPs), influence the plant growth and health are largely unknown. This study is aimed to assess the effects of foliar-applied γ-Fe2O3 NPs and their ionic co...

Investigation was done to find out the effect of different polyamines viz., spermine and spermidine (5, 10, 20 mg/l) biostimulants 2 % Novel (banana pseudostem sap) 2% cow urine as foliar spray on growth parameters rose var. Top Secret.
 Plant height, number branches leaves were found be significantly higher with biostimulants. Maximum plant height in plants treated mg/l while maximum sper...