摘要
为了研究不同引进桃品种在阿拉尔垦区光合特性的差异,采用美国产Li-6400光合测定仪,对不同品种桃叶片的光合指标进行测定,使用丙酮提取法对其叶绿素含量进行测定。桃品种叶绿素含量平均值为3.14 mg/g,以‘锦绣’最高,‘元春’最低。比叶重从大到小顺序为‘元春’‘春美’‘中农金辉’‘中桃2-24’‘中蟠11号’‘中蟠10号’‘锦绣’‘春蜜’‘中红’。引进不同桃品种的光合特性存在差异,9个桃品种的净光合速率均呈双峰型曲线;气孔导度日变化曲线为"双峰"型,‘元春’有1次峰值;胞间CO_2浓度从大到小顺序为‘中农金辉’‘中桃2-24’‘春美’‘中蟠10号’‘中蟠11号’‘中红’‘锦绣’‘元春’‘春蜜’;蒸腾速率均在12:00出现高峰值;水分利用率出现2次峰值,‘中蟠11号’无明显峰值,‘中农金辉’和‘春美’只出现1次峰值,‘中蟠10号’却有3次峰值。综上所述,引进桃品种能够适应阿拉尔垦区的生态环境,生长表现良好。
In order to study the difference of photosynthetic characteristics of different peach cultivars in Alar reclamation area,the photosynthetic indexes of different varieties of peach leaves were determined by American Li-6400 photosynthesis analyzer. The chlorophyll content was determined by acetone extraction method. Peach varieties of chlorophyll content of the average of 3.14 mg/g,with the highest waterfall,‘Yuan chun’ minimum. The order of specific leaf weight from big to small is ‘Yuanchun’‘Chunmei’‘Zhongnongjinhui’‘Zhongtao 2-24’‘Zhongpan 11’‘Zhongpan 10’‘Jinxiu’‘Chunmi’‘Zhonghong’.The diurnal variation curves of the nine peach cultivars showed a bimodal curve,and the diurnal variation curve of stomatal conductance was bimodal curve. There was a peak in ‘Yuanchun’,and the order of intercellular CO2 concentration from big to small is ‘Zhongnongjinhui’‘Zhongtao 2-24’‘Chunmei’‘Zhongpan 10’‘Zhongan 11’‘Zhonghong’‘Jinxiu’‘Yuanchun’‘Chunmi’. Transpiration rate showed a high peak at 12:00,water use rate appeared twice the peak,‘Zhongpan 11’ no obvious peak,‘Zhongnongjinhui’ and ‘Chunmei’ only a peak,‘Zhongpan 10’ has three peaks. In summary,the introduction of peach varieties to adapt to the ecological environment of the Alar reclamation area,the growth performance is good.
作者
唐俊煜
冉丽
张琦
TANG Jun-Yu;RAN Li;ZHANG Qi(Mustang Breeding Research Center of Xinjiang Uygur Autonomous Region,Urumqi 840000,China;Tourism Scenic Area Management Committee of Dabancheng,Urumqi 840000,China;Key Laboratory of Basin Biological Resources Conservatoin and Utilization in Tarim Corps,Alar Xinjiang 843300,China)
出处
《北方果树》
2019年第3期5-9,共5页
Northern Fruits
关键词
桃
光合特性
日变化
叶绿素
比叶重
Peach
Photosynthetic Characteristics
Diurnal Variation
Chlorophyll
Specific Leaf Weight