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Anneli Viherä-Aarnio (email), Leena Ryynänen

Seed production of micropropagated plants, grafts and seedlings of birch in a seed orchard.

Viherä-Aarnio A., Ryynänen L. (1994). Seed production of micropropagated plants, grafts and seedlings of birch in a seed orchard. Silva Fennica vol. 28 no. 4 article id 5538. https://doi.org/10.14214/sf.a9178

Abstract

Seed production of micropropagated plants, seedlings and grafts of Silver birch (Betula pendula Roth) in a polyethylene greenhouse experiment was followed for five years. The grafts started flowering and seed production at the age of two years, one year earlier than other two types of material. At the age of three the seed production of both micropropagated plants and seedlings was already more than two times higher than that of the grafts. Variation between the clones was high and plant type x clone interaction was significant. At the age of four, in 1993, seed production was high in all three types of material. Seed production of the micropropagated plants was two times higher than that of the grafts but about 75% of that of the seedlings. In 1994 seed production of all three plant types was very low, which shows large variation between different years. The early development of the plant material types suggests that micropropagated plants have higher seed production than grafts and could well be used instead of grafts in polythene greenhouse seed orchards.

Keywords
Betula pendula; seedlings; seed orchards; seed production; tissue culture; grafting

Published in 1994

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Available at https://doi.org/10.14214/sf.a9178 | Download PDF

Creative Commons License CC BY-SA 4.0

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