Photosynthetic behavior of Spanish Arbequina and Italian Maurino olive (Olea europaea L.) cultivars under super-intensive grove conditions

Title:

Photosynthetic behavior of Spanish Arbequina and Italian Maurino olive (Olea europaea L.) cultivars under super-intensive grove conditions

Creator:

Proietti, P., Nasini, L., and Ilarioni, L.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:bc6210b0-7077-4acb-ac96-aceb0b69d2eb
uuid:bc6210b0-7077-4acb-ac96-aceb0b69d2eb
issn:0300-3604
doi:10.1007/s11099-012-0025-7

Subject:

botanika, botany, cultivar differences, dark respiration rate, intercellular CO2 concentration, irradiance response curve, stomatal conductance, transpiration rate, 2, and 58

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

The study was carried out in a four-year-old super-high density olive grove in Central Italy to compare leaf gas exchanges of Spanish Arbequina and Italian Maurino olive cultivars. Overall, from mid July to mid November, Maurino had a slightly higher maximum light-saturated net photosynthetic rate (PNmax) than Arbequina. The lowest and the highest PNmax values were recorded at the end of July and in mid November, respectively. Current-season leaves showed similar or slightly higher PNmax values than one-year-old leaves. During the day Maurino always had slightly higher values or values similar to Arbequina, with the highest PNmax being in the morning. Maurino had similar or higher dark respiration rate (RD) values compared to Arbequina. During the day, in both cultivars the RD was lower at 9:00 than in the afternoon. The pattern of the photosynthetic irradiance-response curve was similar in the two genotypes, but the apparent quantum yield (YQ) was higher in Maurino. In both cultivars intercellular CO2 concentration (Ci) tended to increase when PNmax decreased. The increase in Ci corresponded to a decrease in stomatal conductance (gs). The transpiration rate (E) increased from mid July to the beginning of August, then decreased in September and increased again in November. Particularly in the morning, the current-season leaves showed similar or slightly higher E values than the one-year-old leaves. During the day, in both cultivars and at both leaf ages, E was higher in the afternoon. No effects on leaf gas exchanges due to the presence or absence of fruit on the shoot were found. Overall, there was satisfactory physiological adaptation for Arbequina to the conditions of Central Italy and for Maurino to the superintensive grove conditions., P. Proietti, L. Nasini, and L. Ilarioni., and Obsahuje bibliografii

Language:

Multiple languages

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

239-246

Source:

Photosynthetica | 2012 Volume:50 | Number:2

Harvested from:

CDK

Metadata only:

false