干旱对烤烟光合特性的影响研究

以盆栽的云烟87和K326为试验材料，在团棵期、旺长期、现蕾期分别进行不同时间（0-16 d）的干旱处理，研究了干旱对烤烟光合特性的影响。结果表明：随着干旱处理时间的延长，云烟87和K326的气孔导度、蒸腾速率、净光合速率均呈现下降趋势，而胞间CO2浓度则表现出先显著下降然后有所回升的趋势；随着干旱时间的增加，云烟87的叶绿素含量呈降低趋势，而K326的叶绿素含量呈先下降后上升的趋势；云烟87受干旱影响后的光合特性表现总体上略优于K326。...

Full description

Saved in:
Bibliographic Details
Published in江西农业学报 Vol. 26; no. 8; pp. 29 - 32
Main Author 丁雪丹 廖红玲 肖金香
Format Journal Article
LanguageChinese
Published 江西省龙南县气象局，江西 龙南341700 2014
江西农业大学 园林与艺术学院，江西 南昌330045%江西省龙南县气象局,江西 龙南,341700%江西农业大学 园林与艺术学院,江西 南昌,330045
Subjects
光合特性
干旱
影响
烤烟
光合特性
干旱
烤烟
影响
Drought stress
Influence
Flue-cured tobacco
Photosynthetic characteristic
Online AccessGet full text
ISSN1001-8581

Cover

More Information
Summary:以盆栽的云烟87和K326为试验材料，在团棵期、旺长期、现蕾期分别进行不同时间（0-16 d）的干旱处理，研究了干旱对烤烟光合特性的影响。结果表明：随着干旱处理时间的延长，云烟87和K326的气孔导度、蒸腾速率、净光合速率均呈现下降趋势，而胞间CO2浓度则表现出先显著下降然后有所回升的趋势；随着干旱时间的增加，云烟87的叶绿素含量呈降低趋势，而K326的叶绿素含量呈先下降后上升的趋势；云烟87受干旱影响后的光合特性表现总体上略优于K326。
Bibliography:36-1124/S
The potted flue-cured tobacco varieties Yunyan 87 and K326 were used as test materials,drought stress treatments for different time（0-16 d）were conducted respectively at their resetting stage,vigorous growing stage and squaring stage,and the influence of drought stress on the photosynthetic characteristics of flue-cured tobacco was studied. When drought stress time pro-longed,the stomatal conductance,transpiration rate,and net photosynthetic rate of two varieties all showed a decreased tendency, while their intercellular CO2 concentration decreased significantly and then increased slightly. As drought treatment time increased, the chlorophyll content in Yunyan 87 revealed a declining trend,while that in K326 reduced first and then rose. After being influ-enced by drought stress,Yunyan 87 had a slightly better general performance in photosynthetic characteristics than K326.
Flue-cured tobacco;Drought stress;Photosynthetic characteristic;Influence
DING Xue-dan, LIAO Hong-ling, XIAO Jin-xiang （ 1. Longnan
ISSN:1001-8581