徐蕊,王启柏,王滨,张春庆.高产抗旱玉米品种选择评价方法研究[J].干旱地区农业研究,2009,27(2):60~68
高产抗旱玉米品种选择评价方法研究
Study on method of choosing maize cultivars with high yield and drought resistance
  
DOI：10.7606/j.issn.1000-7601.2009.02.11
中文关键词:  玉米  抗旱育种  选择方法  胁迫稳产指数
英文关键词:maize  drought-resisitance breeding  selecting method  stressed stability index
基金项目:山东省重大科技专项(2006JY06-6)
作者单位
徐蕊 College of Agronomy Key Laboratory of Crop Biology Shandong Agricultural University，Tai’an，Shandong 271018，China；Yishui Sub-company of Linyi Tobacco Co．Ltd．，Linyi，Shandong 276400，China 
王启柏 College of Agronomy Key Laboratory of Crop Biology Shandong Agricultural University，Tai’an，Shandong 271018，China 
王滨 Yishui Sub-company of Linyi Tobacco Co．Ltd．，Linyi，Shandong 276400，China 
张春庆 College of Agronomy Key Laboratory of Crop Biology Shandong Agricultural University，Tai’an，Shandong 271018，China 
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中文摘要:
      对生产上推广的抗旱性不同的30个品种,在PVC大棚、旱棚和大田三种条件下,设正常浇水和干旱胁迫两个处理,测定产量;提出品种抗旱性评价胁迫稳产指数概念,并用于分析单一水分胁迫条件和多种水分胁迫条件抗旱评价指标对高产抗旱品种选择的影响。结果表明,在单一水分胁迫条件下,依据正常浇水处理产量和抗旱系数选择高产抗旱的品种,结果不可靠;多种水分胁迫条件下,运用正常浇水产量平均值和胁迫稳产指数选取高产抗旱品种比运用正常浇水产量平均值和抗旱系数平均值选取更可靠,且运算简单,易于在育种工作中运用。通过该法选出的高产抗旱品种有:天泰16、农大81、登海6213、中科11、秀青73-1。
英文摘要:
      The drought and scarcity of water resources are more and more serious, which restrict agricultural development, especially maize production in China.So it is very important to choose cultivars with high yield and drought resistance.30 maize cultivars were planted under the water stress and non-stress treatments designed in PVC shed, drought shed and field, of which the yield was tested under two treatments.A new concept, the stressed stability index (SSI) , was brought forward to evaluate the drought-resistance capability of the cultivars.After comparing the influence of a kind of water stressed condition on choosing the cultivars to many kinds of water stressed conditions, and the influence of SSI and HSC (high-yield stability coefficient) , a new method of choosing maize cultivars with high yield and drought-resistance was set up.The results showed that it was unreliable in a kind of water stressed condition to choose the cultivars using drought resistance coefficient and the yield under non-stress treatment. In many kinds of water stressed conditions it was more feasible to evaluate and choose cultivars of high yield and drought-resistance using the the yield under non-stress treatment and SSI than using the the yield under non-stress treatment and drought resistance coefficient.With this new method, which was easy to use in breeding, Tiantai 16, Nongda 81, Denghai 6213, Zhongke 11 and Xiuqing 73-1 were selected from the 30 cultivars as cultivars with high yield and drought-resistance.
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