Articles
GROWTH CHARACTERISTICS OF MICROPROPAGATED STRAWBERRIES
Article number
560_110
Pages
539 – 542
Language
English
Abstract
In order to determine whether micropropagation affects the growth characteristics of strawberry (Fragaria x ananassa) plants, micropropagated (MP) plants were compared with conventionally propagated runner (RP) plants.
Comparison was made using cultivars Senga Sengana and Zefyr that were planted in field conditions.
The MP plants of cv.
Senga Sengana produced more flowers than RP plants due to the larger number of flower stalks.
Two years after planting the flower stalks of MP plants were still longer than those of RP plants.
The propagation method also affected the leaf area of the plants.
There were more leaf stalks in MP plants of cv.
Zefyr, and the leaf stalks were longer in the MP plants of both varieties one year after planting but not anymore after two years.
Leaflet size was affected by plant type in cv.
Zefyr.
The hairiness of leaf stalks was affected by the propagation method still three years after planting; the hairs were longer in MP plants than in RP plants.
The effect on the abundance of leaf pubescence varied between cultivars.
In the leaf stalks of cv.
Zefyr MP plants there were frequently additional leaflets.
The study thus showed variation in the growth characteristics of both cultivars due to propagation method, but in varying degree.
The propagation method must be taken into account when variety tests are performed and cultivar descriptions are made.
Comparison was made using cultivars Senga Sengana and Zefyr that were planted in field conditions.
The MP plants of cv.
Senga Sengana produced more flowers than RP plants due to the larger number of flower stalks.
Two years after planting the flower stalks of MP plants were still longer than those of RP plants.
The propagation method also affected the leaf area of the plants.
There were more leaf stalks in MP plants of cv.
Zefyr, and the leaf stalks were longer in the MP plants of both varieties one year after planting but not anymore after two years.
Leaflet size was affected by plant type in cv.
Zefyr.
The hairiness of leaf stalks was affected by the propagation method still three years after planting; the hairs were longer in MP plants than in RP plants.
The effect on the abundance of leaf pubescence varied between cultivars.
In the leaf stalks of cv.
Zefyr MP plants there were frequently additional leaflets.
The study thus showed variation in the growth characteristics of both cultivars due to propagation method, but in varying degree.
The propagation method must be taken into account when variety tests are performed and cultivar descriptions are made.
Authors
S. Karhu
Keywords
field performance, Fragaria, in vitro, plant propagation, true-to-type
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