Benzyladenine effect on rooting and axillary shoot outgrowth of Gaura lindheimeri Engelm. A. Gray cuttings

• Autorzy: Wroblewska K.

Warianty tytułu

PL

Wpływ benzyloadeniny na ukorzenianie i wzrost pędów bocznych na sadzonkach gaury lindheimera Gaura lindheimeri Engelm. A. Gray

• Języki publikacji: EN

Abstrakty

EN

Cytokinins determine plant shape via regulation of meristem activity. Stimulatory effect of cytokinins on lateral shoot outgrowth is used in plant production yet they usually impair rhizogenesis. This excludes their usage in propagation from cuttings, although in some cases cytokinin positively affect rooting. The aim of the research was to determine the influence of benzyladenine in a wide range of concentrations on rooting and development of Gaura lindheimeri cuttings and their subsequent growth in order to obtain well branched plants in the shortest time of cultivation. Our study demonstrated high efficiency of some BA treatments in shaping of gaura cuttings without inhibition of rooting. The only combination favouring root formation (by 48%) was BA in 0.02 g dm-3. Cuttings treated with BA in concentration 0.1 g dm-3 and higher formed axillary shoots of considerably increased number and length. The most numerous shoots in both, cuttings and young plants, were observed after application of BA in concentration 2.0 g dm-3. Considering rooting and branching into account the same combination occurred to be the most suitable for development of gaura plants.

PL

Poprzez regulację aktywności merystemów cytokininy warunkują pokrój roślin. Stymulujący wpływ cytokinin na wzrost pędów bocznych jest wykorzystywany w produkcji roślin ozdobnych. Z drugiej strony jednak najczęściej wpływają one ujemnie na rizogenezę, co wyklucza ich stosowanie przy rozmnażaniu przez sadzonki, mimo iż zdarza się, że cytokininy poprawiają ukorzenianie. Celem badań było określenie wpływu benzyloadeniny w szerokim zakresie stężeń na ukorzenianie i rozwój sadzonek gaury Lindheimera Gaura lindheimeri oraz wzrost następczy roślin. Wyniki wykazały wysoką skuteczność stosowania BA w niektórych stężeniach w kształtowaniu pokroju sadzonek gaury bez negatywnego wpływu na ukorzenianie. Jedyną kombinacją stymulującą tworzenie korzeni (o 48%) była BA w stężeniu 0,02 g dm-3. Sadzonki traktowane BA w stężeniu 0,1 g dm-3 i wyższych wytworzyły znacznie dłuższe i liczniejsze pędy boczne. Najdłuższe i w największej liczbie pędy stwierdzono na sadzonkach traktowanych BA w stężeniu 2,0 g dm-3. Biorąc pod uwagę ukorzenianie oraz rozkrzewianie się roślin, ta sama kombinacja okazała się najbardziej korzystna dla rozwoju roślin gaury Lindheimera.

• Wydawca: -
• Czasopismo: Acta Scientiarum Polonorum. Hortorum Cultus
• Rocznik: 2013
• Tom: 12
• Numer: 3
• Opis fizyczny: p.127-136,ref.

Twórcy

autor

Wroblewska K.

• Department of Horticulture, Wroclaw University of Environmental and Life Sciences, pl.Grunwaldzki 24 A, 50-363 Wroclaw, Poland

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