biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 46:557-561, 2003 | DOI: 10.1023/A:1024867612478

Leaf Photosynthesis in Eight Almond Tree Cultivars

F. De Herralde1, C. Biel1, R. Savé1
1 Departament de Tecnologia Hortícola, Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Cabrils, Barcelona, Spain

Response of gas exchange traits to irradiance were studied in eight almond tree (Prunus amygdalus) cultivars: Desmayo Largueta, Falsa Barese, Garrigues, Lauranne, Marcona, Masbovera, Nonpareil and Ramillete, grafted on a hybrid rootstock almond × peach GF-677. From these responses cultivars can be classified from the best to the worst photosynthetic performance as follows: Falsa Barese, Masbovera, Marcona, Nonpareil, Ramillete, Desmayo Largueta, Lauranne and Garrigues. The highest net photosynthetic rate was 20.3 μmol m-2 s-1 in Falsa Barese. In the absence of water stress, photosynthetic rate was not limited by stomatal conductance. Consequently, non-stomatal limitations prevailed under such conditions.

Keywords: internal CO2 concentration; light response curves; net photosynthetic rate; Prunus amygdalus; stomatal conductance; stomatal limitation
Subjects: almond, cultivars, photosynthesis; cultivar differences; gas exchange, photon flux density, cultivars; photon flux density, photosynthesis; Prunus amygdalus; stomatal conductance, gas exchange; stomatal limitation of photosynthesis

Prepublished online: May 1, 2003; Published: December 1, 2003  Show citation

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De Herralde, F., Biel, C., & Savé, R. (2003). Leaf Photosynthesis in Eight Almond Tree Cultivars. Biologia plantarum, 46(4), 557-561. doi: 10.1023/A:1024867612478
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