低温条件下木薯种茎发芽性能与生理指标相关性研究
【目的】探讨木薯在低温寒害下的发芽性能和生理生化特性,评选出与木薯寒害、冻害密切相关的生理指标。【方法】将木薯品种桂热3、华南124和华南205的种茎置于8、5、2℃3种低温胁迫下,分别胁迫处理0（CK）、2、4、6、8、10、12、14d,测定发芽率、相对电导率和脯氨酸含量等指标,并同时进行发芽试验。【结果】低温胁迫时,相同处理条件下木薯种茎发芽率由高到低为：华南124〉华南205〉桂热3号,与试验材料本身抗寒性特征一致;低温处理早期,桂热3相对电导率迅速增加,华南124的相对电导率增加较缓慢,华南205在2℃处理6d时相对电导率达6.0%;不同品种脯氨酸含量变快趋势也不一致,桂热3号、华南...
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| Published in | 南方农业学报 Vol. 42; no. 8; pp. 866 - 869 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
广西大学农学院,南宁,530005
2011
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| Subjects | |
| Online Access | Get full text |
| ISSN | 2095-1191 |
| DOI | 10.3969/j.issn.2095-1191.2011.08.009 |
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| Abstract | 【目的】探讨木薯在低温寒害下的发芽性能和生理生化特性,评选出与木薯寒害、冻害密切相关的生理指标。【方法】将木薯品种桂热3、华南124和华南205的种茎置于8、5、2℃3种低温胁迫下,分别胁迫处理0（CK）、2、4、6、8、10、12、14d,测定发芽率、相对电导率和脯氨酸含量等指标,并同时进行发芽试验。【结果】低温胁迫时,相同处理条件下木薯种茎发芽率由高到低为：华南124〉华南205〉桂热3号,与试验材料本身抗寒性特征一致;低温处理早期,桂热3相对电导率迅速增加,华南124的相对电导率增加较缓慢,华南205在2℃处理6d时相对电导率达6.0%;不同品种脯氨酸含量变快趋势也不一致,桂热3号、华南205和华南124分别在2℃处理4、6和12d时,种茎脯氨酸含量达80.0μg/gFW以上。【结论】相对电导率和脯氨酸含量可以作为评价木薯种茎抗寒性的参考指标。 |
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| AbstractList | 【目的】探讨木薯在低温寒害下的发芽性能和生理生化特性,评选出与木薯寒害、冻害密切相关的生理指标。【方法】将木薯品种桂热3、华南124和华南205的种茎置于8、5、2℃3种低温胁迫下,分别胁迫处理0（CK）、2、4、6、8、10、12、14d,测定发芽率、相对电导率和脯氨酸含量等指标,并同时进行发芽试验。【结果】低温胁迫时,相同处理条件下木薯种茎发芽率由高到低为：华南124〉华南205〉桂热3号,与试验材料本身抗寒性特征一致;低温处理早期,桂热3相对电导率迅速增加,华南124的相对电导率增加较缓慢,华南205在2℃处理6d时相对电导率达6.0%;不同品种脯氨酸含量变快趋势也不一致,桂热3号、华南205和华南124分别在2℃处理4、6和12d时,种茎脯氨酸含量达80.0μg/gFW以上。【结论】相对电导率和脯氨酸含量可以作为评价木薯种茎抗寒性的参考指标。 S533.01; 探讨木薯在低温寒害下发芽性能和生理生化特性,评选出与木薯寒害、冻害密切相关生理指标.将木薯品种桂热3、华南124和华南205种茎置于8、5、2℃3种低温胁迫下,分别胁迫处理0(CK)、2、4、6、8、10、12、14 d,测定发芽率、相对电导率和脯氨酸含量等指标,并同时进行发芽试验.低温胁迫时,相同处理条件下木薯种茎发芽率由高到低为:华南124＞华南205＞桂热3号,与试验材料本身抗寒性特征一致；低温处理早期,桂热3相对电导率迅速增加,华南124相对电导率增加较缓慢,华南205在2℃处理6d时相对电导率达6.0％；不同品种脯氨酸含量变快趋势也不一致,桂热3号、华南205和华南124分别在2℃处理4、6和12d时,种茎脯氨酸含量达80.0μg/gFW以上.相对电导率和脯氨酸含量可以作为评价木薯种茎抗寒性参考指标. |
| Author | 刘惠杰 禤维言 叶艺 葛玉红 姬秋梅 冯斗 |
| AuthorAffiliation | 广西大学农学院,南宁530005 |
| AuthorAffiliation_xml | – name: 广西大学农学院,南宁,530005 |
| Author_FL | JI Qiu-mei FENG Dou YE Yi XUAN Wei-yan GE Yu-hong LIU Hui-jie |
| Author_FL_xml | – sequence: 1 fullname: LIU Hui-jie – sequence: 2 fullname: XUAN Wei-yan – sequence: 3 fullname: YE Yi – sequence: 4 fullname: GE Yu-hong – sequence: 5 fullname: JI Qiu-mei – sequence: 6 fullname: FENG Dou |
| Author_xml | – sequence: 1 fullname: 刘惠杰 禤维言 叶艺 葛玉红 姬秋梅 冯斗 |
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| ClassificationCodes | S533.01 |
| ContentType | Journal Article |
| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DOI | 10.3969/j.issn.2095-1191.2011.08.009 |
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| DocumentTitleAlternate | Relationship of germination performance and some physio-biochemical indices of cassava stems under low temperature |
| DocumentTitle_FL | Relationship of germination performance and some physio-biochemical indices of cassava stems under low temperature |
| EndPage | 869 |
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| Keywords | 相对电导率 发芽率 木薯 脯氨酸 低温胁迫 |
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| Notes | 45-1381/S LIU Hui-jie, XUAN Wei-yan,YE Yi, GE Yu-hong, JI Qiu-mei, FENG Dou （Agricultural College, Guangxi University, Nanning 530005, China） low temperature stress; cassava; relative conductivity; proline; germination rate [Objective]The germination and some chilling injury related with physio-biochemical indices of cassava were studied in order to forecast for application of control measures, and to evaluate the varieties tolerance to cold temperature. [Method]Three cassava varieties, viz., Guire 3, Huanan 124 and Huanan 205 were treated with different low temperatures （2, 5 and 8℃） for 0（CK）,2, 4, 6, 8, 10, 12 and 14 d,respectively,in three replicates. The germination rate and some physio-biochemical indices such as relative conductivity and proline content, etc., were determined. [Result]Under the similar temperature conditions, the variety Huanan 124 showed maximum germination rate followed by the varieties Huanan 205 and Guire 3. However, the relative conductivity of Guire 3 increased sharply, compared to |
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| PublicationTitle | 南方农业学报 |
| PublicationTitleAlternate | Journal of Southern Agriculture |
| PublicationTitle_FL | Guangxi Agricultural Sciences |
| PublicationYear | 2011 |
| Publisher | 广西大学农学院,南宁,530005 |
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| Snippet | 【目的】探讨木薯在低温寒害下的发芽性能和生理生化特性,评选出与木薯寒害、冻害密切相关的生理指标。【方法】将木薯品种桂热3、华南124和华南205的种茎置于8、5、2℃3种低温胁迫下,... S533.01; 探讨木薯在低温寒害下发芽性能和生理生化特性,评选出与木薯寒害、冻害密切相关生理指标.将木薯品种桂热3、华南124和华南205种茎置于8、5、2℃3种低温胁迫下,分别胁迫... |
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| SubjectTerms | 低温胁迫 发芽率 木薯 相对电导率 脯氨酸 |
| Title | 低温条件下木薯种茎发芽性能与生理指标相关性研究 |
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