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| 干旱霜冻条件下甘蔗耐寒性评价分析 | |
| 引用本文： | 杨荣仲,李杨瑞,王维赞,朱秋珍,周会,唐仕云,罗亚伟.干旱霜冻条件下甘蔗耐寒性评价分析[J].西南农业学报,2011,24(1). |
| 作者姓名： | 杨荣仲 李杨瑞 王维赞 朱秋珍 周会 唐仕云 罗亚伟 |
| 作者单位： | 1. 中国农业科学院甘蔗研究中心;广西甘蔗研究所 2. 中国农业科学院甘蔗研究中心 3. 广西甘蔗研究所;农业部甘蔗品质监督检验测试中心(南宁),广西南宁 530007 4. 广西甘蔗研究所 |
| 基金项目： | 国家科技支撑计划项目(2008BADB8B01,2007BAD30B02,2007BAD30B05); 现代农业产业技术体系建设专项资金项目(nycytx-024-01-03); 广西科技攻关项目(0782004-2,0782004-5) |
| 摘 要： | 为了解干旱霜冻条件下甘蔗性状变化特点与评价品种耐寒性,选用国内外21个甘蔗品种(系)在广西霜冻常发区资源县开展了耐寒性评价试验。结果表明,轻霜冻前后的甘蔗锤度、绿叶数和光合速率发生明显变化,且耐寒性差的品种下降较多,但仅有重霜冻后的茎长冻损率、节间冻损率、绿叶百分率与轻霜冻后的锤度和锤度变化相关;进一步分析发现,选用茎长冻损率、上位叶绿叶百分率进行甘蔗耐寒性评价更为简单易行。耐寒性评价表明,在南亚热带和热带地区选育甘蔗品种,如果未经过耐寒性鉴定,选育的新品种其耐寒性表现好和较好的机率将低于30.0%,而表现差和较差的机率将高于60.0%。 |
| 关 键 词： | 甘蔗 干旱霜冻 耐寒性 评价 |
Evaluation on Cold Tolerance of Sugarcane under Drought and Frost Conditions |
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| YANG Rong-zhong,LI Yang-rui,WANG Wei-zan,ZHU Qiu-zhen,ZHOU Hui,TANG Shi-yun,LUO Ya-wei.Evaluation on Cold Tolerance of Sugarcane under Drought and Frost Conditions[J].Southwest China Journal of Agricultural Sciences,2011,24(1). | |
| Authors: | YANG Rong-zhong LI Yang-rui WANG Wei-zan ZHU Qiu-zhen ZHOU Hui TANG Shi-yun LUO Ya-wei |
| Institution: | YANG Rong-zhong1,2,LI Yang-rui1,WANG Wei-zan2,3,ZHU Qiu-zhen1,ZHOU Hui1,TANG Shi-yun2,LUO Ya-wei2(1.Sugarcane Research Center of Chinese Academy of Agricultural Sciences,2.Guangxi Sugarcane Research Institute,3.Quality Inspection and Test Center of Sugarcane(Nanning),Ministry of Agriculture,Guangxi Nanning 530007,China) |
| Abstract: | In order to understand the change characteristics of sugarcane traits and evaluate the cold tolerance of sugarcane varieties under the drought and frost conditions,the experiment was carried out in Ziyuan County,Guangxi Province where the frost occurred often with 21 domestic and abroad sugarcane varieties(elites).The results showed that there were significant changes in the brix,green leaf number and photosynthetic rate of sugarcane before and after light frost and decreased more in cold-sensitive varietie... |
| Keywords: | Sugarcane Drought and frost Cold tolerance Evaluation |
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