Salinity reduced growth PS2 photochemistry and chlorophyll content in radish

By M. Jamil, Shafique Ur Rehman, Kui-jae Lee, Jeong man Kim, Hyun-Soon Kim, E. Rha. 2007

230 citations recorded by the source corpus.

When plants are grown under saline conditions, photosynthetic activity decreases leading to reduced plant growth, leaf area, chlorophyll content and chlorophyll fluorescence. Seeds and seedlings of radish (Raphanus sativus L.) were grown in NaCl solutions under controlled greenhouse conditions. The NaCl concentrations in complete nutrient solutions were 0 (control), 4.7, 9.4 and 14.1 dS m-1. The salinity reduced germination percentage and also delayed the germination rate as the salt level increased. Lengths and fresh weights of root and shoot decreased with the increasing salt concentration. Furthermore, photochemical efficiency of PS2 (Fv/Fm), photochemical quenching coefficient (qP), non photochemical quenching coefficient (qN), leaf area and chlorophyll content (SPAD value) were also reduced (P < 0.001) by salt stress. In contrast, the Fo/Fm ratio increased with increasing salt concentration while salinity showed no effect on the efficiency of excitation captured by open PS2 (Fv'/Fm'), electron transport rate (ETR), and leaf water content. Linear regression shows that the photochemical efficiency of PS2 (Fv/Fm) had a positive relationship with the photochemical quenching coefficient (qP), leaf area and chlorophyll content but had no relation with Fv'/Fm', Fo/Fm, and qN.

Subfields: Plant Science

View Paper: https://www.semanticscholar.org/paper/1656cd4c3c12b729c7869eed17a7bbe511aca2f6

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Plant Science

1. M. Ashraf
2. N. Akram
3. M. Shahbaz
4. Philip Harris
5. R. Rehman
6. Shumaila Hameed
7. Sundus Joham
8. A. Hanif

Citations in the corpus

• Salt-induced modulation in growth, photosynthetic capacity, proline content and ion accumulation in sunflower (Helianthus annuus L.) (2011, background): “A number of studies show that plant growth is positively associated with plant photosynthetic capacity, and decline in plant growth due to salt stress is often attributed to suppression in photosynthesis (Lawlor 2002; Jamil et al. 2007; Noreen and Ashraf 2008; Sabir et al. 2009; Noreen et al. 2010).”
• Photosynthesis under stressful environments: An overview (2013, background): “It provides a measure of the rate of linear electron transport, hence, an indication of overall photosynthetic capacity (Jamil et al. 2007, Tang et al. 2007, Balouchi 2010).”