摘要
1996～1997年采取田间小区试验和室内模拟试验相结合的方法，对3个小麦品种的抗旱形态生理特性进行了研究。结果表明，在水分胁迫条件下．郑旱1号胚芽鞘长、主胚根长、根系活力、叶片脯氨酸含量、细胞膜造性、旗叶SOD活性、O2产生速率、MDA含量、成稳数、稳粒数、千粒重和产量的增减幅度最小，抗旱性最好，豫麦2号次之，豫麦41号的增减幅度最大．抗旱性最差。在众多抗旱形态生理指标中，用胚芽鞘长和主胶很长进行品种抗旱性鉴定和筛选具有较高的应用价值。
The drought-resistant form and physiological characteristics for three wheat cultivars were studied with the method of field small block test and indoor simulated test from 1996 to 1997. The result showed that the change of the plumule sheath length、main radicle length, roots vigor, leaf proline content, pemeability of cell membrane,SOD activity in flag leaf,O2 producing rate, MDA content,ear number, grain number per spike, 1000-kernel weight and grain yield of Zhenghan NO. 1 is the smallest and the drought resistance is the best among the three what cultivars under the drought stress conditions. The drought resistance of Yumai NO. 2 is in the middle. The change of above standards of Yumai NO. 41 is the largest and the drought resistance is the worst. The plumule sheath length and the main radicle length in many drought resistance forms and physiologlcal standards are the best drought resistance appraisal standards for drought-resis- tant wheat cultivars screening.
出处
《洛阳农业高等专科学校学报》
1999年第1期7-10,共4页
Journal of Luoyang Agricultural College
基金
河南省科委和洛阳市科委重大科技攻关项目
关键词
抗旱指标
筛选
小麦
抗旱品种
drought resistance standard, screening, wheat
