摘要
通过两年试验 ,对干旱条件下不同温型小麦开花至成熟期间群体冠层温度、光合作用、叶片气体交换等生理特性进行了较为系统的分析。结果表明 ,不同温型小麦在籽粒灌浆期间的冠层温度、净光合速率、蒸腾速率、气孔导度均有明显差异 ,冷型小麦具有明显的优势 ,特别在籽粒灌浆后期 ;抗旱小麦具有与冷型小麦一致的特点。因此 ,在旱地小麦栽培和育种工作中 ,重视冷型材料的选择和运用 。
Four traits, canopy temperature, leaf net photosynthetic rate, stomatal conductance and transpiration rate were determined by using 9 wheat cultivars during the flowering to ripening period in drought conditions. The large differences existed in all the four traits among different temperature type varieties. Especially, the low canopy temperature wheat and drought-resistant varieties were better in all above aspects, so the use and selection of the low canopy temperature materials should be stressed in the wheat breeding and culture, it was useful to improve crop yield and quality in arid areas.
出处
《麦类作物学报》
CAS
CSCD
2001年第4期48-51,共4页
Journal of Triticeae Crops
基金
国家自然科学基金项目 ( 39870 477)
关键词
冷型小麦
干旱
净光合速率
气孔导度
蒸腾速率
Drought
Canopy temperature
Net photosynthetic rate
Transpiration rate
Stomatal conductance
