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作物学报

作物学报 ›› 2007, Vol. 33 ›› Issue (11): 1810-1814.

• 研究论文 • 上一篇    下一篇

冬小麦品种抗霜冻力的影响因素分析

钟秀丽1;王道龙1;吉田久2;胡新3;赵鹏1;韩立帅4;王晓光1;黄绍华3;黄建英3;孙忠富1   

  1. 1中国农业科学院农业环境与可持续发展研究所，北京100081；2日本国际协力机构“中国可持续农业技术研究发展计划”项目日本专家组，北京 100081；3河南省商丘市农林科学研究所，河南商丘476000；4山西省介休市气象局，山西介休032000
  • 收稿日期:2007-02-05 修回日期:1900-01-01 出版日期:2007-11-12 网络出版日期:2007-11-12
  • 通讯作者: 钟秀丽

Analysis on the Factors Affecting Frost Resistance for Winter Wheat

ZHONG Xiu-Li1,WANG Dao-Long1,YOSHIDA Hisashi2,HU Xin3,ZHAO Peng1,HAN Li-Shuai4,WANG Xiao-Guang1,HUANG Shao-Hua3,HUANG Jian-Ying3,SUN Zhong-Fu1   

  1. 1 Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081; 2 Japanese Expert Team for the Project on Sustainable Agricultural Technology Research, Japan International Cooperation Agency (JICA), Beijing 100081; 3Shangqiu Institute of Agriculture and Forestry Sciences, Shangqiu 476000, Henan; 4 Meteorological Bureau of Jiexiu City, Jiexiu 032000, Shanxi, China
  • Received:2007-02-05 Revised:1900-01-01 Published:2007-11-12 Published online:2007-11-12
  • Contact: ZHONG Xiu-Li

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1046

被引次数

45

摘要：

应用移动式人工霜箱，研究了冬小麦幼穗抗霜冻力随发育期的变化规律。结果表明，随发育期进程，幼穗抗霜冻力呈下降趋势，从药隔前期开始进入低温敏感期。利用室内人工霜箱，在药隔前期对21个品种进行了抗霜冻力鉴定，进而分析了不同品种、冬春性、越冬抗冻力以及叶片可溶性糖含量等对冬小麦抗霜冻力的影响。结果表明，除少数品种有一定抗霜冻力外，多数品种抗霜冻力无显著差异。品种抗霜冻力与其冬春性和越冬抗冻力均无显著相关性，与叶片可溶性糖含量之间亦无显著相关性。

关键词: 冬小麦, 幼穗, 抗霜冻力, 发育期

Abstract:

rost often causes young ear injury at the elongation stage of wheat, the frost-sensitive period, leading to yield reduction. The objectives of this study were to understand how frost resistance of young ears (FRYE) varied with development progression to find the most frost-sensitive stage, and the factors affecting the FRYE, which is of importance for determining the feasible phase to evaluate the frost resistance of different wheat cultivars and, providing guidance to select the cultivars with frost resistance, as well as developing the frost prevention technologies. In this study, change in FRYE with development progression was investigated with 4 cultivars of winter wheat (Triticum aestivum L.), using the Movable Artificial Climate Chamber. Frost resistance of young ears of 21 cultivars were tested at earlier stage of anther connective formation phase (ACFP) using the Room Climate Chamber and the effects of several factors on FRYE, such as cultivars, varietal types, winter hardiness, and soluble sugar content of leaves were analyzed. Degree of injury was examined using the microscopes. The results showed that there was a decreasing trend for FRYE with process of development and a sharp drop at the beginning of ACFP, suggesting that the sensitive phase to low temperature for young ears started with ACFP. Frost resistance of young ears closely related to development progression, and difference in frost injury among cultivars was mostly caused by differences in plant development progression; no significant differences could be found among most of the cultivars, except a few ones with a strong frost resistance; no significant correlations existed between varietal pattern and FRYEs, between FRYEs and winter hardiness, and between FRYEs and soluble sugar contents of leaves. Therefore, evaluation of FRYE and selection of cultivars with frost resistance need to perform in same development stage, especially in the frost-sensitive stage. And some indices for winter hardiness can not be used to estimate frost resistance of cultivars.

Key words: Winter wheat, Young ear, Frost resistance, development stage

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