中国沙棘、俄罗斯沙棘及杂交子代光合特征比较研究  

Comparison of Photosynthetic Characteristics of Hippophae rhamnoides Sinensis,and its'Hybrid

作　　者：栗宏林[1] 杨文姬[2,3] 

机构地区：[1]西南林业大学林学院 [2]水利部水土保持植物开发管理中心,北京100038 [3]山合林(北京)水土保持技术有限公司,北京100038

出　　处：《国际沙棘研究与开发》2011年第3期45-48,共4页

摘　　要：利用LI—6400便携式光合仪对中国沙棘(Hippophae Rhamnoides Sinensis)、俄罗斯沙棘(Hipp-ophae Rhamnoides)及其杂交子代的光合特征进行测定,比较其亲本及子代的差异性。结果表明光合速率日变化曲线中国沙棘及俄罗斯沙棘呈"双峰"型,杂交子代呈"单峰型";全天蒸腾速率以俄罗斯沙棘最大,中国沙棘最小;胞间CO2浓度日变化规律三者相似,均在14:00达到最小值;全天气孔导度以俄罗斯沙棘最大。The photosynthetic characteristics diurnal changes of Hippophae rhamnoides sinensis,Hippophae rhamnoides and its hybrid was measured with Li—6400.Results showed： diural variations of photosynthetic rate is doubel-peak curve of Hippophae rhamnoides sinensis and Hippophae rhamnoides,while diural variations of photosynthetic rate of the hybrid appeared single-peak curve.Hippophae rhamnoides is the highest on the daily variation curve of transpiration,while Hippophae rhamnoides sinensis is the lowest.Hippophae rhamnoides sinensis,Hippophae rhamnoides and hybrid had a similar changing curve of diurnal variations of intercellular CO2 concentration,the lowest peak is at 14：00.Diurnal variations of stomatal conductance of Hippophae rhamnoides is the higerest.

关 键 词：沙棘 杂交子代 光合特征 

分 类 号：S793.6[农业科学—林木遗传育种]