Horticultural Science, 2007 (vol. 34), issue 2
Investigations of suitable pollinator for 0900 Ziraat sweet cherry cv.: pollen performance tests, germination tests, germination procedures, in vitro and in vivo pollinations
F. Tosun, F. Koyuncu
Hort. Sci. (Prague), 2007, 34(2):47-53 | DOI: 10.17221/1851-HORTSCI 
The objective of this study was to determine suitable cultivars to be used as pollinators for 0900 Ziraat. 0900 Ziraat was used as a female cultivar; Bigarreu Gaucher, Bing, Noble, Starks Gold, Stella, Van, and Vista were used for pollination in the experiments. Starks Gold had the highest values in terms of anther number, average number of pollens per anther, number of pollen per flower and the morphological homogeneity. The pollen viability rates showed significant differences according to stain tests. In vitro pollen germination in 0.5% agar + 15% sucrose + 5 ppm boric acid medium increased with increasing incubation period, and the highest...
Results of an orchard trial with new clonal sweet cherry rootstocks established at Holovousy and evaluated in the stage of full cropping
J. Blažková, I. Hlušičková
Hort. Sci. (Prague), 2007, 34(2):54-64 | DOI: 10.17221/1849-HORTSCI
Ten clonal dwarf or semi-dwarf rootstocks were evaluated in a trial that was established in the spring of 1999 at Holovousy. Lapins cv. was used as a scion tester for all these rootstocks; five of them were tested also by Regina cv. Among the new rootstocks G 195/5 was evaluated as the most promising for Lapins cv. The highest rate of mortality and symptoms of poor scion compatibility with Lapins cv. were observed on Weiroot 53 and Weiroot 158. The most vigorous of the tested rootstock was G 497/8 followed by Gisela 7 and Gisela 4. Intermediate vigour was recorded on trees on G 154/7, P-HL-A, Gisela 3 and Tabel Edabriz. The least vigorous were G 195/20,...
Effect of alternative organic fertilizers on the nutritional value and yield of head cabbage
A. Zahradník, K. Petříková
Hort. Sci. (Prague), 2007, 34(2):65-71 | DOI: 10.17221/1850-HORTSCI
Commercial brands of alternative, organic fertilizers were compared with conventional, mineral fertilizers using head cabbage. There were six different treatments: conventional farmyard manure, Agro (made from poultry bedding and molasses), Dvorecký agroferm (granulated, made from dried, aerobically-fermented farmyard manure), Agormin (an organo-mineral fertilizer), compost manufactured from plant waste material, mineral fertilizer, and an unfertilized control. All the treatments were applied at rates providing approximately the same level of nutrients. After harvest, the levels of the minerals (K, Na, Ca, and Mg), ascorbic acid, nitrates and yield...
Testing the divergence of selected taxa of genus Cotoneaster, Juniperus, Picea and Viburnum - the influence of climate changes on intensive roof gardens
D. Krajčovičová
Hort. Sci. (Prague), 2007, 34(2):72-76 | DOI: 10.17221/1854-HORTSCI
The research has been conducted in several phases for 10 years on existing intensive roof gardens in the Trencin district. The first phase was carried out within the GP 1/4419/47 Adaptability of Cultural Vegetation in Consequence of Global Draining and Warming. Roof gardens are a good place for simulating natural phytocenose sites that are able to accumulate rainfall without taking it to drainage. The second phase of research was conducted within a continuation of GP 1/1316/04, verifying xeric plants for conditions of changing climate in a urbanized environment on different construction systems. For a statistical evaluation it was necessary to select...
Influence of growth regulators and nitrogenous compounds on in vitro bulblet formation and growth in oriental lily
S. Kumar, V. Awasthi, J. K. Kanwar
Hort. Sci. (Prague), 2007, 34(2):77-83 | DOI: 10.17221/1853-HORTSCI
The influence of growth regulators and nitrogenous compounds on in vitro bulblet formation and growth was studied in two hybrids of Lilium. Bulbscales isolated from pre-cooled bulbs of hybrids Rosato and Marco Polo were used. The basal portion with plate (5 × 6 mm) of inner bulbscales was cultured on Murashige and Skoog (MS) medium containing 0.5 or 1 mg/dm3 naphthaleneacetic acid (NAA) and/or benzyladenine (BA). The presence of NAA (0.5 mg per dm3) showed higher explant regeneration, producing about three bulblets per explant as compared to control. About four bulblets per explant were produced at both concentrations...
In vitro clonal propagation of Nyctanthes arbortristis Linn. - a medicinal tree
G. R. Rout, A. Mahato, S. K. Senapati
Hort. Sci. (Prague), 2007, 34(2):84-89 | DOI: 10.17221/1852-HORTSCI
Rapid shoot multiplication of Nyctanthes arbortristis was achieved from axillary meristems on Murashige and Skoog (MS) basal medium supplemented with 1.0-1.5 mg/l 6-benzyladenine (BA), 50 mg/l adenine sulfate (Ads) and 3% (m/v) sucrose. Inclusion of indole-3-acetic acid (IAA) in the culture medium along with BA + Ads promoted a higher rate of shoot multiplication. Maximum mean number of microshoots per explant (6.65) was achieved on the MS medium supplemented with 1.5 mg/l BA, 50 mg/l Ads and 0.1 mg/l IAA after 4 weeks of culture. The elongated shoots rooted within 13 to 14 days on 1/2 strength MS medium supplemented either with indole-3-butyric...