Axillary bud growth in relation to adventitious root formation in cuttings |
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Authors: | Jü rgen Hansen,Kristian Kristensen |
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Affiliation: | Inst. of Glasshouse Crops, Danish Research Ser vice for Plant and Soil Science. Kirstinebjergvej 10, DK-5792 Arslev, Denmark;Dept of Biometry and Informatics, Danish Research Service for Plant and Soil Science, Lottenborgvej 24, DK-2800 Lyngby, Denmark |
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Abstract: | Single-node leaf-bud cuttings of Schefflera arboricola Hayata and Stephanotis floribunda Brongn. were set and root formation, onset of axillary bud growth and plant height were measured. An increase in the number of roots in Schefflera, which was achieved with increasing cutting position on the stock plant (measured from top to base) or with increasing stem length below the node, accelerated the onset of axillary bud growth and resulted in an increase in plant height. Increasing the number of roots per cutting in Stephanotis through an increase in basal temperature also accelerated bud and shoot growth. Positional effects on root formation in Stephanotis showed no relationship with axillary bud growth and plant height. A positive relationship between number of roots per cutting and axillary bud growth was found among clones of Stephanotis . In general the results suggest that, with some exceptions, the onset of axillary bud growth is accelerated in cuttings as a result of accelerated root formation and a higher number of roots per cutting. |
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Keywords: | Adventitious root formation axillary bud growth Schefflera arboricola Stephanotis floribunda |
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