摘要
高温干旱胁迫对16个草地早熟禾品种生长发育造成了不同程度的影响,各品种都表现出生长速度减缓、叶色变浅、叶宽减小,伤害表现显著,且分蘖能力品种间存在明显差异。通过对处理与对照恢复时期的伤害比率的测定可知,高温、干旱双因子胁迫作用较之干旱单因子更为显著。
The results showed that the development of 16 Kentucky bluegrass（Poa pratensis L. ） cultivars subjected to drought and heat stress were inhibited obviously. The growth, leaf color, leaf width of 16 tested cultivars were decreased. Tiller capacities were different. The hurt rates in resumption period of treated plants and controls were measured immediately after treatment, and the development of Kentucky bluegrass cultivars subjected to drought and heat Stress were inhibited more obviously than they to drought.
出处
《中国草地学报》
CSCD
2007年第3期45-51,共7页
Chinese Journal of Grassland
基金
湖北省科技厅攻关项目(2002AA3001C99)
湖北省教育厅重大科研项目(2002Z0007)
湖北省涝渍灾害与湿地农业重点实验室开放基金(HNKFJ2002C03)
湖北省教育厅优秀中青年科技创新团队资助项目(鄂教科[2003年7号]文-12)
国家教育部新世纪优秀人才支持计划项目(2005-2007)
关键词
草地早熟禾
伤害比率
干热胁迫
抗性指标
Poa pratensis L.
Hurt rate
Drought and heat stress
Resistant index
