摘要
比较研究了开花后干旱胁迫下小麦 (TriticumaestivumL .)不同绿色器官光合活性的变化 ,发现叶片光合对干旱胁迫的敏感性大于穗器官。在干旱胁迫下各器官叶绿体Hill反应活力、光合电子传递活性及光合磷酸化水平均下降 ,但下降幅度以旗叶叶片明显大于穗、穗下节间和叶鞘。
Photosynthetic characteristics of different green organs of winter wheat after anthesis were studied under soil drought condition. The results showed that flag leaf blade was more sensitive to drought stress than ear. Under water stress, Hill activities, electron transport rates and photophosphorylation levels in all green organs declined, but the rate of decline was higher in flag leaf blade than in ear, peduncle and sheath. It suggested that stress tolerance of non-leaf organs, especially ear, was stronger than that of leaf blade in photosynthesis.
出处
《作物学报》
CAS
CSCD
北大核心
2004年第5期487-490,共4页
Acta Agronomica Sinica
基金
国家自然科学基金项目 ( 3 0 2 70 780 )
高校博士点基金项目 ( 2 0 0 2 0 0 190 2 2 )
