| 贵州气候条件下马铃薯的光合特征 |
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| 引用本文： | 孙芳,芶久兰,孙锐锋,何佳芳,钱晓刚.贵州气候条件下马铃薯的光合特征[J].贵州农业科学,2012(2):48-50. |
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| 作者姓名： | 孙芳 芶久兰 孙锐锋 何佳芳 钱晓刚 |
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| 作者单位： | 内蒙古环境科学研究院;贵州省土壤肥料研究所;贵州大学农学院 |
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| 基金项目： | 贵州省重大专项项目“贵州马铃薯产业化关键技术研究与示范”[黔科合重大专项(2008)6009];农业工程中心项目“贵州省农业资源与环境工程技术研究中心建设”[黔科合农G字(2009)4001];贵州省省级科研机构创新能力建设项目“贵州省耕地质量实验室建设”[院所创能(2007)012] |
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| 摘 要： | 为获得马铃薯栽培生理参数,以不同熟期的马铃薯品种为研究对象,采用盆栽试验对在高产长势下的品种、叶位对光合作用的影响进行了研究。结果表明:不同熟期的马铃薯品种光合特征变化相似,上部新叶片的光合速率最高,下部叶片较低,水平放置叶片净光合速率高于自然状态叶片净光合速率;净光合速率日变化均出现"午休"现象;马铃薯净光合速率、蒸腾速率日变化呈"双峰"型,叶片胞间CO2浓度变化呈"W"型;呼吸速率费乌瑞它高于会-2,净光合速率会-2的高于费乌瑞它,胞间CO2浓度日均值会-2的高于费乌瑞它。
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| 关 键 词： | 马铃薯 光合特征 气候条件 贵州 |
Photosynthetic Characteristics of Potato in Guizhou Climate Condition |
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| SUN Fang,GOU Jiu-lan,SUN Rui-feng,HE Jia-fang,QIAN Xiao-gang.Photosynthetic Characteristics of Potato in Guizhou Climate Condition[J].Guizhou Agricultural Sciences,2012(2):48-50. |
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| Authors: | SUN Fang GOU Jiu-lan SUN Rui-feng HE Jia-fang QIAN Xiao-gang |
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| Institution: | 1.Inner Mongolia Institute of Environmental Science,Hohhot,Inner Mongolia 010010;2.Guizhou Institute of Soil and Fertilizer,Guiyang,Guizhou 550006;3.Agricultural College,Guizhou University,Guiyang,Guizhou 550025,China) |
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| Abstract: | To obtain physiological parameters for potato cultivation,a pot experiment was conducted to study the effects of potato variety and leaf position in high yield growth vigor.The results showed that change of photosynthetic characteristics of potato varieties with different ripe stage was similar.Photosynthetic rate of upper new blades was the highest,that of bottom blades was low.Pn of horizontally placed blades was higher than that in natural state.The diurnal variation of Pn all had midday depression phenomenon.The curves of diurnal variation of Pn and Tr showed two single peaks.Leaf intercellular CO2 concentration showed a "W" shape change.The respiratory rate of Favorita was higher than Hui-2,Pn and daily mean value of intercellular CO2 concentration of Hui-2 were higher than Favorita. |
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| Keywords: | potato photosynthetic characteristics climate condition Guizhou |
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