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The subject of his study were 8-year-old sweet cherry trees of the cultivar ‘Kordia’ grafted on the ‘Colt’ rootstock and trained as spindles. The aim of the experiment was to estimate the influence of cytokinin BA on fruit quality. Treatments carried out three times in one week intervals. The first treatment was carried out when fruitlets were 6-8 mm in diameter. In first combination, in all three...
The experiment was conducted at the Experimental Station near Krakow in 2008 and 2009. The objects of the experiment were twelve-year-old pear trees cv. 'Conference'. The aim of the experiment was to evaluate the effect of three commercial preparations, containing two forms of the auxin NAA and the cytokinin BA, on the fruit set, total yield, fruit weight and the firmness, acidity and soluble solids...
The subjects of this study were 8-year-old sweet cherry trees of the cultivar 'Kordia' grafted on the 'Colt' rootstock. The trees had been trained as spindles for four years after planting. In the fifth year, four systems of pruning were introduced: 1) the spindle form - i.e. the pruning system remained unchanged, 2) Zahn's method of pruning, 3) one-year-old shoots were cut back leaving approximately...
The experiment took place in 2006 and 2008. In 2007, the study did not take place due to severe damage to the buds and flowers caused by a spring frost. The subjects of the experiment were 14-year-old 'Sampion' apple trees grafted on the MM 106 rootstock. The auxin NAA, at the concentrations of 20 and 60 mgl-1, and ethephon, at the concentrations of 200 and 600 mg l-1, were used in the experiment...
The experiment was carried at the Experimental Station of Garlica Murowana near Kraków in 2006 and 2008. In 2007 the experiment was not conducted due to frost damages. The objects of the experiment were fourteen-year-old apple trees 'Šampion' cv. on MM.106 rootstock. The aim of the experiment was to evaluate the influence of ethephon (2-chloroethylphosphonic acid) and auxin NAA (naphthalene acetic...
Two-year-old Stanley plum trees were sprayed with solution of potassium salt of alphanaphtaleneacetic acid (NAA). The treatment was repeated at two dates on two groups of trees. The first treatment was conducted by the end of the blooming period after the flowers were fertilized; the second treatment took place 10 days later. The concentrations of NAA varied from 30-80 mg dmˉ³. The percentage of fruit...
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