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Influence of a few seedling rootstocks on the growth, yield and fruit quality of apricot trees

100%

Sitarek M., Bartosiewicz B.

Journal of Fruit and Ornamental Plant Research

2011

tom 19

nr 2

In the field experiment, 5-year-old 'Morden 604' and 'Miodowa' apricot trees grafted on the seedling rootstocks Wangenheim Prune and Erunosid (both P. domestica L.), as well as Polish selection apricot (P. armeniaca L.) genotypes A4 and M46 were compared with trees of the same cultivars on the standard P. divaricata rootstock. Vigour in apricot trees was affected by rootstock type. Trees of both cultivars on P. divaricata and 'M46' had the largest trunk cross-sectional area. The most dwarfing rootstock was 'Wangenheim Prune'. Rootstock had no effect on the fruiting of 'Morden 604' trees. In the case of the Miodowa cultivar, the highest cumulative yields were harvested from trees grafted on P. divaricata and 'M46', while the lowest from those on 'Erunosid'. The results revealed that 'Wangenheim Prune', in comparison to other rootstock tested, significantly reduced the mean fruit weight. In addition, trees grafted on this rootstock had the highest mortality. Mean content of soluble solids in fruits of 'Morden 604' and 'Miodowa' apricots was not affected by root- stocks in this study. Generally, the value of A4 and M46 genotypes used as seedling rootstocks for apricot trees in this experiment was higher than the P. divaricata standard rootstock.

Effect of pruning time on growth, blooming and content of chemical constituents in leaves of four early ripening plum cultivars

80%

Sosna I.

Journal of Fruit and Ornamental Plant Research

2010

tom 18

nr 2

151-160

In this experiment, early ripening plum trees were pruned at two different times. The experiment was conducted at the Fruit Experimental Station in Samotwór near Wroc ław in 2001-2004. Objects of the study were 8 year-old plum trees of 'Herman', 'Cacanska Rana', 'Sanctus Hubertus' and 'Cacanska Lepotica' cultivars budded on 'Myrobalan' seedlings (Prunus divaricata). The experiment was established in a randomised block design in three replications with 6 trees per plot. In 2001-2003, time of tree pruning was differentiated. Half of the trees were pruned only at the end of August (summer pruning after harvest of fruit). The other pruning took place at the end of March (dormant pruning before blooming time). Time of pruning had no influence on vegetative growth and chemical composition of leaves. No matter what the time of pruning, the total sugars, reducing sugars, potassium, calcium, magnesium and phosphorus contents in leaves were similar. Sugars, calcium and phosphorus contents were significantly influenced by the year. Foliar nutrient content differed according to the plum cultivar. 'Sanctus Hubertus' showed markedly lower leaf K and Mg contents, whereas 'Cacanska Lepotica' had a higher P content. Pruning time had an influence on the crop efficiency index. Dormant-pruned trees were significantly more productive.

Ograniczanie wyników

2 Journal of Fruit and Ornamental Plant Research

1 Bartosiewicz B.

1 Sitarek M.

1 Sosna I.

1 2011

1 2010

Wyniki wyszukiwania

Influence of a few seedling rootstocks on the growth, yield and fruit quality of apricot trees

Effect of pruning time on growth, blooming and content of chemical constituents in leaves of four early ripening plum cultivars