THE application of insecticides is often necessary in greenhouse crop production to prevent damage from insect pests that could render the plants unsalable. However, pesticide usage can lead to toxicity issues, which may adversely affect plant growth and development. It seems plausible that applications of foliar insecticides could adversely affect photosynthesis by clogging, or at least partia...

Studies on cut flowers have occurred, for improving their quality is the main priority. One of top 10 in world, gerbera, or Transvaal daisy (Gerbera jamesonii Hook), a flowering plant. The presented study aimed to investigate effect genotypes, storage duration, and interactions flower – daisy. Two cultivars Gerbera (sweet smile sweet surprise) four durations underwent examination various parame...

Scape bending disorder is the most important factor affecting postharvest loss of gerbera cut flowers. One of the ultimate reasons for gerbera stem bending is lignin, with deformation structural functions and defensive mechanisms. This postharvest experiment was conducted to evaluate the role of phenylalanine ammonia lyase (PAL) and peroxidase (POD) enzymes activity in stem bending of two gerbe...

An attempt was made to evaluate the utility of a method which employs semi-specific PCR using partially specific primers for the coding sequence (ET) at the exon-intron contact and of the RAPD method to identify eight Polish cultivars of gerbera. It was demonstrated that the PCR method which employs semi-specific primers is as simple and economical as the RAPD method, simultaneously the images ...

To determine the factors affecting airborne conidial concentrations of Podosphaera xanthii Braun and Shishkoff and powdery mildew severity in greenhouse-grown potted gerbera (Gerbera jamesonii H. Bolus), airborne concentrations of conidia were monitored in a glass and polyethylene greenhouse. Temperature, relative humidity, and leaf wetness were recorded onsite, and the percentage of foliage wi...

An in vitro mass propagation protocol was developed for Gerbera (Gerbera jamesonii Bolus) var. orange using flower bud explants. The young (7 days) explants were found to be suitable culture and highest (100%) callus induction obtained MS medium supplemented with 5.0 mg/l BAP 1.0 NAA. maximum shoot regeneration (95%) the number of shoots (10) observed 6.0 0.3 multiplication frequency (60) only ...

A major component of the evaluation of biological control agents is the study and comparison of their biology, including the reproductive mode. In hymenopteran parasitoids, reproductive modes include thelytoky and arrhenotoky. Since a thelytokous population produces only females, it is assumed that they may be better suited for biological control than an arrhenotokous population. Here we compar...

R.A. Levy et al. (eds.), Psychodynamic Psychotherapy Research: Evidence-Based Practice and Practice-Based Evidence, Current Clinical Psychiatry, DOI 10.1007/978-1-60761-792-1_10, © Springer Science+Business Media, LLC 2012 A. J. Gerber (*) Division of Child and Adolescent Psychiatry , Columbia University, New York State Psychiatric Institute , New York , NY, USA e-mail: [email protected]