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Comparison of Growth of Seedlings and Plants Grown from Root Pieces of Yellow Toadflax (Linaria vulgaris)

Published online by Cambridge University Press:  12 June 2017

Léonie B. Nadeau ,
Jane R. King  and
K. Neil Harker
Léonie B. Nadeau
Affiliation:
Univ. Alberta, Edmonton, Alberta, T6G 2P5
Jane R. King
Affiliation:
Univ. Alberta, Edmonton, Alberta, T6G 2P5
K. Neil Harker
Affiliation:
Lacombe Res. Stn., Bag Service 5000, Lacombe, Alberta, T0C 1S0
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Abstract

Different growth rates of young seedlings (genets) and plants grown from root pieces (ramets) of yellow toadflax could influence their respective competitive ability and their susceptibility to management techniques. Shoot production was similar for genets and ramets (approximately 10 shoots were produced 12 or 13 wk after transplanting or cotyledon appearance, respectively), but the rate of shoot biomass accumulation was higher for genets than for ramets. Genets consistently produced more underground shoots than ramets. Replanted underground shoots separated from their roots were able to produce new shoots and roots. Rate of elongation for roots 0.5 to 1.5 mm in diameter was higher for ramets than for genets, but their shoot production potential was the same. Root pieces from genets did not have the ability to produce daughter shoots until 3 wk after cotyledon appearance. This indicates that very young genets would be more susceptible than older genets or ramets to management control systems.

Keywords

Yellow toadflaxLinaria vulgaris Mill., # LINVUSeedlingsvegetative reproductionLINVU
Type
Weed Biology and Ecology
Information
Weed Science , Volume 40 , Issue 1 , March 1992 , pp. 43 - 47
Copyright
Copyright © 1992 by the Weed Science Society of America 

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References

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