In vitro selection of strawberry (Fragaria × ananassa Duch.) clones tolerant to salt stress |
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Authors: | Piotr Dziadczyk Hanna Bolibok Miros?aw Tyrka Jerzy A Hortyñski |
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Institution: | (1) Department of Genetics and Horticultural Plants Breeding, Agricultural University, [15 Akademicka St, 20-934 Lublin, Poland;(2) Institute of Plant Genetics and Breeding, Agricultural University, 15 Akademicka St, 20-934 Lublin, Poland;(3) Department of Genetics and Horticultural Plants Breeding, Agricultural University, 15 Akademicka St, 20-934 Lublin, Poland |
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Abstract: | The method of in vitro selection for increased salt tolerance at the seed germination and early growth phase of strawberry seedlings is proposed.
Clone Pau/27 was selected on medium containing 200 mM of NaCl from population obtained by free pollination of cv. ‘Paula2019;.
Subsequently, on the same medium 18 salt tolerant clones were attained from the population of seeds collected from self pollinated
Pau/27 plants. In the next step we examined the influence of a mild salt stress (75 mM of NaCl) on vegetative growth parameters
of selected clones and two cvs.; ‘Paula2019; and ‘Senga Sengana’. All materials in the study on the basis of calculated indexes
were divided into four groups differing in reaction to salt. First group (clustered together cv. ‘Paula’, Pau/27 and three
second generation clones: Pau/27/11, Pau/27/24, Pau/27/30) represents sensitive genotypes. Second group, including ‘Senga
Sengana’, Pau/27/06, Pau/27/10, Pau/27/12, Pau/27/13, Pau/27/15, Pau/27/18, Pau/27/20, Pau/27/21, Pau/27/26, Pau/27/27, Pau/27/31
and Pau/27/32 was designated tolerant. Third group contains only one highly tolerant clone Pau/27/08. The last group comprises
two highly sensitive clones (Pau/27/01 and Pau/27/03).
This revised version was published online in August 2006 with corrections to the Cover Date. |
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Keywords: | Fragaria × ananassa in vitro selection salinity tolerance strawberry breeding |
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