Effects of <sup>60</sup>Co-γ rays on in vitro mutagenesis of strawberry
Two strawberry cultivars (Toyonoka, Akihime) in vitro were irradiated by <sup>60</sup>Co gamma rays from 20 Gy to 100 Gy for induced mutation breeding. The results indicated that all treatments had effects on the growth and development of strawberry, but different cultivars had different...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Zhejiang University Press
2007-03-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
| Subjects: | |
| Online Access: | https://www.academax.com/doi/10.3785/1008-9209.2007.02.0180 |
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| Summary: | Two strawberry cultivars (Toyonoka, Akihime) in vitro were irradiated by <sup>60</sup>Co gamma rays from 20 Gy to 100 Gy for induced mutation breeding. The results indicated that all treatments had effects on the growth and development of strawberry, but different cultivars had different sensitivity to the irradiation of gamma rays. And the LD<sub>50</sub> was also different, which was 55 Gy for strawberry cultivar‘Toyonoka’ and 64.6 Gy for strawberry cultivar ‘Akihime’. Inhibition was obviously produced by <sup>60</sup>Co gamma rays for strawberry cultivar ‘Toyonoka’, which the plants became short in height, blooming time was put back, and the number of flowers was reduced, and this inhibition was more obvious with increase of the irradiation dose. The effect of <sup>60</sup>Co gamma rays on flowering was more distinct than that on growth for strawberry cultivar ‘Akihime’. As to the high aberrance and the excellent aberrance, the most suitable dose to strawberry cultivar ‘Akihime’ was 20 Gy, at which the plants had high aberrance percent by 36.53% and much excellent aberrance. |
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| ISSN: | 1008-9209 2097-5155 |