Horticultural Science, 2011 (vol. 38), issue 1
LIST OF REVIEWERS 2010
editors
Hort. Sci. (Prague), 2011, 38(1):I | DOI: 10.17221/2462-HORTSCI 
Changes in phenols composition and activity of phenylalanine-ammonia lyase in apples after fungal infections
J. Schovánková, H. Opatová
Hort. Sci. (Prague), 2011, 38(1):1-10 | DOI: 10.17221/42/2010-HORTSCI
The defensive reaction of apple cultivar Idared (Malus domestica Borkh.) was studied after inoculation with three different pathogens (Penicillium expansum, Monilinia fructigena, and Gloeosporium spp.). Changes in phenolic content and activity of phenylalanine-ammonia lyase were determined after 7, 14, and 21 days after the inoculation. The significant differences were discovered in the progress of rotting after the inoculation. The increase in phenols concentration and in phenylalanine-ammonia lyase activity varied in the place of fungal attack, in the tissues around rotten zone and in the healthy part. The response...
Tree growth and some other characteristics of new columnar apple cultivars bred in Holovousy, Czech Republic
J. Blažek, J. Křelinová
Hort. Sci. (Prague), 2011, 38(1):11-20 | DOI: 10.17221/23/2010-HORTSCI
Several characteristics related to tree growth, their fruitage and resistance against scab and powdery mildew were assessed during 2007-2008 on five new cultivars in comparison with the ancestral McIntosh Wijcik, in which 4 out of 5 had their pedigree. In several plots established between 1998 and 2006, the trees, which were on different rootstocks predominantly planted in spacing 4 × 0.5 m, were grown as vertical cordons practically without any pruning or shaping. Besides the first years after the planting these columnar trees generated very limited side branching. The cultivars mutually differ in tree vigour, spurring density, and size of fruiting...
Differences in the susceptibility of codling moth populations to Cydia pomonella granulovirus in the Czech Republic
T. Zichová, V. Falta, F. Kocourek, J. Stará
Hort. Sci. (Prague), 2011, 38(1):21-26 | DOI: 10.17221/26/2010-HORTSCI
The Cydia pomonella granulovirus is a very important agent for the biological control of the codling moth, Cydia pomonella, in both organic and integrated apple and pear production. Three populations of Cydia pomonella originating from three separate areas of the Czech Republic were tested for their susceptibility to Cydia pomonella granulovirus in laboratory bioassays at several concentrations of Cydia pomonella granulovirus. A sensitive laboratory strain was chosen as a control. The larval mortality was checked 14 days after the infection. The mortality of Cydia pomonella larvae was similar in...
Efficiency of SSR markers for determining the origin of melon plantlets derived through unfertilized ovary culture
A.A. Malik, Li Cui, Shuxia Zhang, Jin-feng Chen
Hort. Sci. (Prague), 2011, 38(1):27-34 | DOI: 10.17221/47/2010-HORTSCI
The effects of temperature pre-treatment, thidiazuron, naphthaleneacetic acid, and 6-benzylaminopurine on in vitro gynogenic plant production from un-pollinated melon (Cucumis melo L.) ovaries were investigated. Simple sequence repeat (SSR) marker analysis was conducted to identify the homozygous diploid individuals. The temperature pre-treatment (4°C) for 4 days increased embryo formation frequency (63.3%) significantly. Addition of thidiazuron (0.04 and 0.02 mg/l) in the induction medium significantly increased the number of responding ovaries (46.6%, 65.83%), respectively. The maximum number of plantlet regeneration (22.5%) was...
Reducing peat and growth regulator input in camellia pot cultivation
F. Larcher, A. Berruti, P. Gullino, V. Scariot
Hort. Sci. (Prague), 2011, 38(1):35-42 | DOI: 10.17221/70/2010-HORTSCI
Regulating plant development plays an important part in Camellia japonica L. pot production. Cultivation usually occurs on peat-based substrate and growth control is performed with triazoles application. However, there is an increasing need for suitable peat alternatives and more effective protocols. This study evaluated the effectiveness of three different dosages (50, 100, 200 mg/l) and two application protocols (foliar spray, once or twice) of paclobutrazol on two C. japonica cultivars grown on eight different substrate mixtures. The substrates were composed of four peat substitutes (local green compost, pumice, composted coconut...
Non-linear mixed-effects modeling for photosynthetic response of Rosa hybrida L. under elevated CO2 in greenhouses - Short communication
I. Ozturk, C.O. Ottosen, C. Ritz, J.C. Streibig
Hort. Sci. (Prague), 2011, 38(1):43-47 | DOI: 10.17221/97/2010-HORTSCI
hotosynthetic response to light was measured on the leaves of two cultivars of Rosa hybrida L. (Escimo and Mercedes) in the greenhouse to obtain light-response curves and their parameters. The aim was to use a model to simulate leaf photosynthetic carbon gain with respect to environmental conditions. Leaf gas exchanges were measured at 11 light intensities from 0 to 1,400 µmol/m2s, at 800 ppm CO2, 25°C, and 65 ± 5% relative humidity. In order to describe the data corresponding to different measurement dates, the non-linear mixed-effects regression analysis was used. The model successfully described the photosynthetic responses....