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《Northern Horticulture》 2010-09
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Study on Photosynthesis of Apricot Leaf in and out Greenhouse

HU Xi-lai,WANG Na,ZHANG Hui-mei(College of Horticulture,Henan Agricultural University,Zhengzhou,Henan 450002)  
The photosynthesis of the leaves of apricot "Katy" grew in Huanghuai improved energy-saving greenhouse was studied using apricot "Katy" as experimental material.The results showed that in greenhouse cultivation conditions,the diurnal variation of net photosynthetic rate displayed double-peak curve,and the light compensation point/saturation point as well as the CO2 compensation point/saturation point were lower than in open field.Significant differences in the net photosynthetic rate,the light compensation point/saturation point and the CO2 compensation point/saturation point were observed in different parts of the greenhouse.The absolute value of net photosynthetic rate,the light compensation point/saturation point and CO2 saturation point in the Southern part were higher than in the Northern and central parts but CO2 compensation point in the Northern part was higher than in the Southern and central parts.Also,water use efficiency from high to low in turn was as:the Southern part,the open field,the Northern part and the central part
【Fund】: 河南省重点攻关资助项目(072102140001)
【CateGory Index】: S662.2
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