| 不同类型冬小麦品种拔节后幼穗低温敏感期的鉴定 |
| |
| 引用本文： | 刘平湘,郭天财,韩巧霞,王永华,吴晓.不同类型冬小麦品种拔节后幼穗低温敏感期的鉴定[J].现代农业科技,2010(11):41-43. |
| |
| 作者姓名： | 刘平湘 郭天财 韩巧霞 王永华 吴晓 |
| |
| 作者单位： | 1. 河南农业大学农学院,河南郑州,450002
2. 国家小麦工程技术研究中心 |
| |
| 摘 要： | 以百农矮抗58、豫麦49-198、豫农949和偃展4110这4个小麦品种为材料,利用人工气候室处理,研究了冬小麦拔节期幼穗抗霜冻力随幼穗分化进程的变化规律。在药隔期前后对4个品种进行了抗霜冻力鉴定,进而分析了不同品种、冬春性以及幼穗发育进程等对冬小麦抗霜冻力的影响。结果表明,4个品种中百农矮抗58抗冻能力较强,其他几个品种抗冻能力相对较弱。随幼穗发育进程的推进,幼穗抗霜冻力总体呈下降趋势,从雌雄蕊末期发育进入药隔期,幼穗的抗霜冻力骤然下降,雌雄蕊分化期之前以及药隔期之后,抗霜力的下降趋势比较平缓,表明雌雄蕊至药隔期是冬小麦幼穗分化的低温敏感期;品种的抗霜性研究适宜在该时期展开。
|
| 关 键 词： | 冬小麦 幼穗 低温敏感期 鉴定 |
Identification of Young Ear's Low Temperature Sensitive Phase after Jointing Stage of Different Type Winter Wheat |
| |
| Authors: | LIU Ping-xiang GUO Tian-cai HAN Qiao-xia WANG Yong-hua WU Xiao |
| |
| Institution: | LIU Ping-xiang1 GUO Tian-cai2 HAN Qiao-xia2 WANG Yong-hua2 WU Xiao1(1Agronomy College of Henan Agricultural University,Zhengzhou Henan 450002,2National Engineer Research Center for Wheat) |
| |
| Abstract: | Pot experiments were carried out to determine the cold hardiness of four varieties cultivated popularly in Henan,named Bainong Aikang 58,Yumai 49-198,Yunong 949,yanzhan 4110,utilizing the artificial chamber.Simulation experiment of frost damage was carried out to find how frost resistance of young ears(FRYE) variate with the differentiation phases proceeding.The results indicated that Bainong Aikang 58 showed stronger cold tolerance than the others,and the FRYE tended to decrease during the whole joining st... |
| |
| Keywords: | winter wheat young ear’s low temperature sensitive phase identification |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
