Back to Search
Start Over
Leaf gas exchange, water relations, nutrient content and growth in citrus and olive seedlings under salinity.
- Source :
- Biologia Plantarum; Jun2008, Vol. 52 Issue 2, p385-390, 6p
- Publication Year :
- 2008
-
Abstract
- Abstract  The effects of salinity on growth, leaf nutrient content, water relations, gas exchange parameters and chlorophyll fluorescence were studied in six-month-old seedlings of citrus (Citrus limonia Osbeck) and rooted cuttings of olive (Olea europaea L. cv. Arbequina). Citrus and olive were grown in a greenhouse and watered with half strength Hoagland’s solution plus 0 or 50 mM NaCl for citrus, or plus 0 or 100 mM NaCl for olive. Salinity increased Cl− and Na+ content in leaves and roots in both species and reduced total plant dry mass, net photosynthetic rate and stomatal conductance. Decreased growth and gas exchange was apparently due to a toxic effect of Cl− and/or Na+ and not due to osmotic stress since both species were able to osmotically adjust to maintain pressure potential higher than in non-salinized leaves. Internal CO2 concentration in the mesophyll was not reduced in either species. Salinity decreased leaf chlorophyll a content only in citrus. [ABSTRACT FROM AUTHOR]
- Subjects :
- GAS exchange in plants
CITRUS
SALT
SALINITY
Subjects
Details
- Language :
- English
- ISSN :
- 00063134
- Volume :
- 52
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Biologia Plantarum
- Publication Type :
- Academic Journal
- Accession number :
- 33055578
- Full Text :
- https://doi.org/10.1007/s10535-008-0081-9