| 5个甘蔗新品种(系)的抗旱性研究 |
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| 引用本文： | 陆国盈,劳丽萍,韩世健,裴铁雄,汤雪莲,秦洪波.5个甘蔗新品种(系)的抗旱性研究[J].安徽农业科学,2011,39(3):1341-1345. |
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| 作者姓名： | 陆国盈 劳丽萍 韩世健 裴铁雄 汤雪莲 秦洪波 |
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| 作者单位： | 广西大学农学院,广西南宁530005;广西大学甘蔗研究所,广西南宁530005;广西大学农学院,广西南宁,530005 |
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| 基金项目： | 国家科技支撑计划项目，广西科学研究与开发计划课题 |
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| 摘 要： | 目的]研究桂糖30号等5个甘蔗新品种（系）的抗旱性。方法]采用桶栽和人工控水的方法,对桂糖30号等5个甘蔗新品种（系）的抗旱性进行研究,以抗旱性较强的新台糖22号（ROC22）为第1对照品种,以抗旱性较弱的新台糖16号（ROC16）为第2对照品种,测定干旱胁迫期间的叶片膜透性、丙二醛含量、脯氨酸含量、蔗茎生长速度、枯叶率和收获期的株高、茎径、有效茎数和蔗茎产量等指标。采用模糊数学中的隶属函数法计算各品种（系）的抗旱隶属函数,根据各品种（系）的抗旱隶属函数加权值大小对其抗旱性进行综合评判。结果]桂糖97-69的抗旱性表现最好,桂糖02-901其次,两者的抗旱性综合指标优于抗旱性强的对照品种ROC22;桂糖30号和桂柳1号的抗旱性综合指标接近ROC22,属于抗旱性中等偏强的类型;桂糖02-467的抗旱性比ROC22差,但比抗旱性较弱的对照品种ROC16优,属于抗旱性中等偏弱的类型。结论]为今后甘蔗品种（系）推广时选择适宜的生态环境条件提供了科学的理论依据。
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| 关 键 词： | 甘蔗新品种(系) 抗旱性 生理生化指标 产量性状 |
Research on the Drought Resistance of Five New Sugarcane Varieties |
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| Institution: | LU Guo-ying et al(College of Agronomy,Guangxi Agricultural University,Nanning,Guangxi 530005) |
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| Abstract: | Objective]The resistance of five new sugarcane cultivars such as GUITANG 30 to drought was experimented.Method]The resist-ance of five new sugarcane cultivars to drought was tested based on the potted experiment and the control of irrigation and the variety-ROC22 withstrong drought resistance was the first contrast and ROC16 which was weak drought resistance was the second contrast.The cell membrane perme-ability of leaf,the content of MDA and proline,the elongation rate of stem,the rate of dead leaf,the height,stem diameter,number of productivetiller,the yield in the harvest time were measured during the drought-stress.The drought membership function of each cultivar was calculated withthe method of Fuzzy Mathematics Membership Function and according to the drought weighted value the drought résistance was comprehensivelyevaluated.Results]The result showed that the drought resistance of GUITANG97-69 was the best and the second was GUITANG02-901,both ofwhich aggregative index of the drought resistance were better than that of ROC22.The aggregative index of the drought resistance of GUITANG 30and GUILIU 1 was close to that of ROC22,belonging to the moderate to strong drought-resisting variety.The drought resistance of GUITANG02-467 was worse than that of ROC22 but better than that of ROC16,which was the moderate to weak drought-resisting variety.Conclusion]The sci-entifically theoretic basis of the suitable ecological environment in the extension of sugarcane cultivar was provided. |
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| Keywords: | New sugarcane cultivar Drought resistance Physiological and biochemical indexes Yield traits |
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