Response of two tomato cultivars to field-applied proline under irrigation with saline water: growth, chlorophyll fluorescence and nutritional aspects

Title:

Response of two tomato cultivars to field-applied proline under irrigation with saline water: growth, chlorophyll fluorescence and nutritional aspects

Creator:

Kahlaoui, B., Hachicha, M., Rejeb, S., Rejeb, M. N., Hanchi, B., and Misle, E.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:4b1c2901-f586-41d8-9c0a-03926ae0f971
uuid:4b1c2901-f586-41d8-9c0a-03926ae0f971
issn:0300-3604
doi:10.1007/s11099-014-0053-6

Subject:

fotosyntéza, rajčata, photosynthesis, tomatoes, Tunisko, Rio Grande (Mexický záliv : řeka : oblast), Tunisia, Rio Grande River Valley (Colo.-Mexico and Tex.), chlorophyll fluorescence, foliar pulverization, proline, salt tolerance, salinity, Solanum lycopersicum, 2, and 581

Type:

model:article and TEXT

Format:

print, bez média, and svazek

Description:

The response of tomato (Solanum lycopersicum L.) to abiotic stress has been widely investigated. Recent physiological studies focus on the use of osmoprotectants to ameliorate stress damage, but experiments at a field level are scarce. Two tomato cultivars were used for an experiment with saline water (6.57 dS m-1) and subsurface drip irrigation (SDI) in a silty clay soil. Rio Grande is a salinity-tolerant cultivar, while Heinz-2274 is the salt-sensitive cultivar. Exogenous application of proline was done by foliar spray at two concentrations (10 and 20 mg L-1) during the flowering stage. Control plants were treated with saline water without proline. Proline at the lower concentration (10 mg L-1) increased dry mass of different plant organs (leaves, stems, and roots) and it improved various chlorophyll a fluorescence parameters compared with controls. Regarding mineral nutrition, K+ and P were higher in different organs, while low accumulation of Na+ occurred. However, Mg2+ was very high in all tissues of Rio Grande at the higher concentration of proline applied. Thus, the foliar spray of proline at 10 mg L-1 increased the tolerance of both cultivars. The growth of aboveground biomass of Heinz-2274 was enhanced by 63.5%, while Rio Grande improved only by 38.9%., B. Kahlaoui, M. Hachicha, S. Rejeb, M. N. Rejeb, B. Hanchi, E. Misle., and Obsahuje bibliografii

Language:

Multiple languages

Rights:

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

Coverage:

421-429

Source:

Photosynthetica | 2014 Volume:52 | Number:3

Harvested from:

CDK

Metadata only:

false