水分胁迫对田间栽培刺五加光合作用的影响

Influence of Water Stress on Photosynthesis of Acanthopanax Senticosus Planted in the Field

探讨遮阳栽培条件下水分胁迫对刺五加光合作用的影响。以春季田间自然缺水引起胁迫及灌溉后胁迫消除的同株4年生刺五加为试材进行光响应研究。春旱缺水使刺五加植株光合作用变弱直至暂时丧失,遮阳有减少水分蒸发的作用,及时灌溉可以解决早春干旱给刺五加带来的不利影响。

The influence of water stress on photosynthesis ofAcanthopanax Senticosus were planted in the field was discussed. Light response of four-year-old trees under stress for water deficiency and removement by irrigation was studied in spring in the field, photosynthesis became weaker or lost temporarily in spring drought, water evaporation could be reduced in shade and the adverse effect could be resolved by irrigation.