Horticultural Science, 2010 (vol. 37), issue 2

Selected processing characteristics of new plum cultivars grown in the Czech Republic

I. Bohačenko, J. Pinkrová, J. Komárková, F. Paprštein

Hort. Sci. (Prague), 2010, 37(2):39-45 | DOI: 10.17221/26/2009-HORTSCI  

Fermentable sugars (the total of glucose, fructose, and sucrose), sorbitol content, dry matter content, and titrable acidity were monitored in fruits of 16 new plum cultivars from the harvests in 2004-2007. General linear model of two-factor grouping with testing of significance of simple contrasts with LSD method was used for statistical evaluation of plum cultivar chemical characteristics. Based on these results the tested cultivars were further divided into groups as regards their future processing into prunes, damson cheese or distillates. The traditional cultivar Italian Prune, grown in parallel, was used as the reference standard. Cultivars Gabrovská,...

Characteristics of promising apricot (Prunus armeniaca L.) genetic resources in Central Serbia based on blossoming period and fruit quality

T. Milošević, N. Milošević, I. Glišić, B. Krška

Hort. Sci. (Prague), 2010, 37(2):46-55 | DOI: 10.17221/67/2009-HORTSCI  

This study presents results on the performance of apricot (Prunus armeniaca L.) genotypes in Central Serbia. The research included observation and recording of biological (i.e. phenological) traits and in situ sampling of fruits from 1,210 grafted trees for determination of pomological and sensorial traits. A total of 14 genotypes were selected and compared with Hungarian Best (control cultivar). The difference in blossoming time between two years was one month. In 2006, blossoming time was found to be earlier in three genotypes, simultaneous in five genotypes and later in six as compared to the control. In 2007, bloom was earlier...

Isoenzyme polymorphism of almond genotypes selected in the region of northern Serbia

S. Čolić, D. Milatović, D. Nikolić, G. Zec

Hort. Sci. (Prague), 2010, 37(2):56-61 | DOI: 10.17221/55/2009-HORTSCI  

Isoenzyme polymorphism was studied in 20 almond (Prunus dulcis [Mill.] D.A. Webb) genotypes selected from seedling populations of unknown almond cultivars in the region of northern Serbia (Vojvodina). Fourteen enzyme systems were studied using the method of vertical polyacrylamide gel electrophoresis. Ten systems were polymorphic in twelve loci. This polymorphism allowed unique identification of all studied genotypes. The most useful enzyme for analysis of almond genetic variability was menadione reductase. Polymorphism identified for alkaline phosphatase, formate dehydrogenase, glutamate dehydrogenase, malic enzyme, and menadione reductase...

The relationship between seed coat color and seed quality in watermelon Crimson sweet

K. Mavi

Hort. Sci. (Prague), 2010, 37(2):62-69 | DOI: 10.17221/53/2009-HORTSCI  

This work was carried out to determine the relationship between seed coat color and seed quality in Crimson sweet watermelon. Seed lots (1, 2, 3, and 4) were prepared taking into consideration seed coat colors in fresh seeds with naked eye. The color parameters of these prepared seed lots were determined using Minolta colorimeter. To determine quality differences between the seed lots, standard germination test, seed weight, water uptake ratio, mean germination time, emergence percentage, mean emergence time, seedling fresh weight, seedling dry weight and electrical conductivity values were determined. The seed weight (57.22 mg), germination percentage...

Mass cloning of Rose and Mussaenda, popular garden plants, via somatic embryogenesis

P. Das

Hort. Sci. (Prague), 2010, 37(2):70-78 | DOI: 10.17221/57/2009-HORTSCI  

Protocols were developed for propagation of Rosa hybrida cv. Landora and Mussaenda erythrophylla cv. Rosea via somatic embryogenesis by manipulating growth regulators and culture conditions. Calli were induced from young leaf explants of Rosa hybrida cv. Landora and Mussaenda erythrophylla cv. Rosea on Murashige, Skoog medium supplemented with 6-benzylaminopurine or kinetin along with indole-3-acetic acid or 2,4-dichloroacetic acid within four weeks of culture. The calli were subcultured either in the same medium or in a modified medium for induction of embryogenic callus. Embryogenic calli in rose were developed...