Physiological mechanisms of resistance to cold stress associated with 10 elite apple rootstocks
A study was conducted in attempting to identify the cold-resistant apple rootstocks and to establish a comprehensive evaluation system. In this study, 10 elite apple dwarfing rootstocks (GM256, JM7, M26, M7, SC1, SH1, SH38, SH6, M9, and T337) were employed for the experiment and the following parame...
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| Format: | Article |
| Language: | English |
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Elsevier
2018-04-01
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| Series: | Journal of Integrative Agriculture |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S209531191761760X |
| _version_ | 1818641958316277760 |
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| author | Yan-xiu WANG Ya HU Bai-hong CHEN Yan-fang ZHU Mohammed Mujitaba Dawuda Sofkova Svetla |
| author_facet | Yan-xiu WANG Ya HU Bai-hong CHEN Yan-fang ZHU Mohammed Mujitaba Dawuda Sofkova Svetla |
| author_sort | Yan-xiu WANG |
| collection | DOAJ |
| description | A study was conducted in attempting to identify the cold-resistant apple rootstocks and to establish a comprehensive evaluation system. In this study, 10 elite apple dwarfing rootstocks (GM256, JM7, M26, M7, SC1, SH1, SH38, SH6, M9, and T337) were employed for the experiment and the following parameters were investigated under different low temperature stress conditions (0, −15, −20, −25, −30, and −35°C): the changes of the relative electrical conductivity (REC), anthocyanin content, protein content, soluble sugar content, soluble starch content, proline content, malondialdehyde (MDA) content, superoxide dismutase (SOD) activity, and peroxidase (POD) activity of the dormant branches. The inflection temperature that could represent the plant tissue semi-lethal temperature (LT50) was obtained by the measurements of REC. The LT50 was used to evaluate eight other indices. The results showed that there was no significant correlation between LT50 and POD activity as well as between the soluble sugar, protein and proline contents at 0 and −15°C. Soluble starch content at 0 and −15°C and anthocyanin content at −15–(−30)°C were significantly but negatively correlated to the LT50 and the MDA content at 0–(−20)°C was significantly positively correlated to the LT50. Statistical analysis based on principal component analysis and LT50 showed that cold resistant apple rootstocks in the decreasing order from high to low as GM256, SH6, SH38, SH1, SC1, M26, M7, JM7, T337, and M9. |
| first_indexed | 2024-12-16T23:35:26Z |
| format | Article |
| id | doaj.art-1e3206e9128d47e0a88771aebc03c928 |
| institution | Directory Open Access Journal |
| issn | 2095-3119 |
| language | English |
| last_indexed | 2024-12-16T23:35:26Z |
| publishDate | 2018-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Integrative Agriculture |
| spelling | doaj.art-1e3206e9128d47e0a88771aebc03c9282022-12-21T22:11:46ZengElsevierJournal of Integrative Agriculture2095-31192018-04-01174857866Physiological mechanisms of resistance to cold stress associated with 10 elite apple rootstocksYan-xiu WANG0Ya HU1Bai-hong CHEN2Yan-fang ZHU3Mohammed Mujitaba Dawuda4Sofkova Svetla5College of Horticulture, Gansu Agricultural University, Lanzhou 730070, P.R. China; WANG Yan-xiu, Mobile: +86-13919489161College of Horticulture, Gansu Agricultural University, Lanzhou 730070, P.R. ChinaCollege of Horticulture, Gansu Agricultural University, Lanzhou 730070, P.R. ChinaCollege of Horticulture, Gansu Agricultural University, Lanzhou 730070, P.R. ChinaCollege of Horticulture, Gansu Agricultural University, Lanzhou 730070, P.R. China; Deparment of Horticulture, Faculty of Agriculture, University for Development Studies, Tamale P.O. BoxTL 1882, GhanasInstitute of Agriculture and Environment, Massey University, Palmerston North 4442, New ZealandA study was conducted in attempting to identify the cold-resistant apple rootstocks and to establish a comprehensive evaluation system. In this study, 10 elite apple dwarfing rootstocks (GM256, JM7, M26, M7, SC1, SH1, SH38, SH6, M9, and T337) were employed for the experiment and the following parameters were investigated under different low temperature stress conditions (0, −15, −20, −25, −30, and −35°C): the changes of the relative electrical conductivity (REC), anthocyanin content, protein content, soluble sugar content, soluble starch content, proline content, malondialdehyde (MDA) content, superoxide dismutase (SOD) activity, and peroxidase (POD) activity of the dormant branches. The inflection temperature that could represent the plant tissue semi-lethal temperature (LT50) was obtained by the measurements of REC. The LT50 was used to evaluate eight other indices. The results showed that there was no significant correlation between LT50 and POD activity as well as between the soluble sugar, protein and proline contents at 0 and −15°C. Soluble starch content at 0 and −15°C and anthocyanin content at −15–(−30)°C were significantly but negatively correlated to the LT50 and the MDA content at 0–(−20)°C was significantly positively correlated to the LT50. Statistical analysis based on principal component analysis and LT50 showed that cold resistant apple rootstocks in the decreasing order from high to low as GM256, SH6, SH38, SH1, SC1, M26, M7, JM7, T337, and M9.http://www.sciencedirect.com/science/article/pii/S209531191761760Xcold resistanceLT50principal component analysisapple dwarfing rootstock |
| spellingShingle | Yan-xiu WANG Ya HU Bai-hong CHEN Yan-fang ZHU Mohammed Mujitaba Dawuda Sofkova Svetla Physiological mechanisms of resistance to cold stress associated with 10 elite apple rootstocks Journal of Integrative Agriculture cold resistance LT50 principal component analysis apple dwarfing rootstock |
| title | Physiological mechanisms of resistance to cold stress associated with 10 elite apple rootstocks |
| title_full | Physiological mechanisms of resistance to cold stress associated with 10 elite apple rootstocks |
| title_fullStr | Physiological mechanisms of resistance to cold stress associated with 10 elite apple rootstocks |
| title_full_unstemmed | Physiological mechanisms of resistance to cold stress associated with 10 elite apple rootstocks |
| title_short | Physiological mechanisms of resistance to cold stress associated with 10 elite apple rootstocks |
| title_sort | physiological mechanisms of resistance to cold stress associated with 10 elite apple rootstocks |
| topic | cold resistance LT50 principal component analysis apple dwarfing rootstock |
| url | http://www.sciencedirect.com/science/article/pii/S209531191761760X |
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