Investigation on difference in auto-toxicity among tobacco cultivars
The differences among eight tobacco culitvars or lines (Nicotiana tabacum) in auto-toxicity of root exudates were investigated using bioassay. Root exudates of the eight tobacco cultivars or lines were collected and used to determine the effects of them on seed germination and seedling growth. The r...
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| Language: | English |
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Zhejiang University Press
2012-03-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
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| Online Access: | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2012.02.001 |
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| author | XU Lu-lu PAN Wen-jie ZHANG Guo-ping |
| author_facet | XU Lu-lu PAN Wen-jie ZHANG Guo-ping |
| author_sort | XU Lu-lu |
| collection | DOAJ |
| description | The differences among eight tobacco culitvars or lines (Nicotiana tabacum) in auto-toxicity of root exudates were investigated using bioassay. Root exudates of the eight tobacco cultivars or lines were collected and used to determine the effects of them on seed germination and seedling growth. The results showed that for most cultivars, fresh and dry mass, leaf and root length were increased at low concentration of exudate and reduced at high concentration of one. A cultivar, Qianxi 1 showed the greatest inhibition for all growth parameters above. While the breeding line, No.1 was quite particular in its response to root exudate, in that all growth parameters showed increase, even under the highest concentration of root exudate. Germination rate of the new lines No. 7, No. 1 and cultivars Yunyan 85 and Chunlei 3 were promoted, while that of other cultivars was inhibited by root exudates. It may be concluded that that the auto-toxicity differs among tobacco genotypes, suggesting that it is possible in breeding program to develop the cultivars with less allelopathy. |
| format | Article |
| id | doaj-art-96a6f3df3dac4a8ab850f5f0b613ab62 |
| institution | Kabale University |
| issn | 1008-9209 2097-5155 |
| language | English |
| publishDate | 2012-03-01 |
| publisher | Zhejiang University Press |
| record_format | Article |
| series | 浙江大学学报. 农业与生命科学版 |
| spelling | doaj-art-96a6f3df3dac4a8ab850f5f0b613ab622025-08-20T03:58:11ZengZhejiang University Press浙江大学学报. 农业与生命科学版1008-92092097-51552012-03-013811912610.3785/j.issn.1008-9209.2012.02.00110089209Investigation on difference in auto-toxicity among tobacco cultivarsXU Lu-luPAN Wen-jieZHANG Guo-pingThe differences among eight tobacco culitvars or lines (Nicotiana tabacum) in auto-toxicity of root exudates were investigated using bioassay. Root exudates of the eight tobacco cultivars or lines were collected and used to determine the effects of them on seed germination and seedling growth. The results showed that for most cultivars, fresh and dry mass, leaf and root length were increased at low concentration of exudate and reduced at high concentration of one. A cultivar, Qianxi 1 showed the greatest inhibition for all growth parameters above. While the breeding line, No.1 was quite particular in its response to root exudate, in that all growth parameters showed increase, even under the highest concentration of root exudate. Germination rate of the new lines No. 7, No. 1 and cultivars Yunyan 85 and Chunlei 3 were promoted, while that of other cultivars was inhibited by root exudates. It may be concluded that that the auto-toxicity differs among tobacco genotypes, suggesting that it is possible in breeding program to develop the cultivars with less allelopathy.https://www.academax.com/doi/10.3785/j.issn.1008-9209.2012.02.001auto-toxicitybioassayroot exudatetobacco<italic>Nicotiana tabacum</italic> |
| spellingShingle | XU Lu-lu PAN Wen-jie ZHANG Guo-ping Investigation on difference in auto-toxicity among tobacco cultivars 浙江大学学报. 农业与生命科学版 auto-toxicity bioassay root exudate tobacco <italic>Nicotiana tabacum</italic> |
| title | Investigation on difference in auto-toxicity among tobacco cultivars |
| title_full | Investigation on difference in auto-toxicity among tobacco cultivars |
| title_fullStr | Investigation on difference in auto-toxicity among tobacco cultivars |
| title_full_unstemmed | Investigation on difference in auto-toxicity among tobacco cultivars |
| title_short | Investigation on difference in auto-toxicity among tobacco cultivars |
| title_sort | investigation on difference in auto toxicity among tobacco cultivars |
| topic | auto-toxicity bioassay root exudate tobacco <italic>Nicotiana tabacum</italic> |
| url | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2012.02.001 |
| work_keys_str_mv | AT xululu investigationondifferenceinautotoxicityamongtobaccocultivars AT panwenjie investigationondifferenceinautotoxicityamongtobaccocultivars AT zhangguoping investigationondifferenceinautotoxicityamongtobaccocultivars |