RT article
T1 Use of chlorophyll fluorescence imaging as diagnostic technique to predict compatibility in melon graft
A1 Calatayud, Ángeles
A1 San Bautista, Alberto
A1 Pascual, Bernardo
A1 Vicente Maroto, Jose
A1 Lopez-Galarza, Salvador
K1 Chlorophyll fluorescence imaging
K1 Compatibility
K1 Cucumis melo L.
K1 Cucurbita maxima Duchesne x Cucurbita moschata Duchesne
K1 Grafting
K1 A FLUORESCENCE
K1 OZONE EXPOSURE
K1 PLANTS
K1 PHOTOSYNTHESIS
K1 LEAVES
K1 YIELD
K1 INCOMPATIBILITY
K1 ROOTSTOCKS
K1 PATHOGEN
K1 STRESS
AB Grafts cause stress in plants that can be measured by changes in chlorophyll (Chl) fluorescence. Variations in fluorescence parameters can be visualized through images that reveal spatial and temporal changes in grafted plants. To validate the sensitivity of chlorophyll fluorescence imaging (CFI) as a diagnostic method of studying compatibility/incompatibility in grafted plants, we used melon cultivars ('Ricura' and 'Sancho', Cucumis melo L. var. saccharinus Naud.) grafted onto Cucurbita maxima Duchesne x Cucurbita moschata Duchesne ('Shintoza'). Previous results had shown different compatibility behaviour of the two cultivars, 'Ricura' (R) having in more relative frequency higher compatibility problems with 'Shintoza' (SH) rootstock than 'Sancho' (S). The use of double grafting using an intermediate melon cultivar between R and SH has proved effective in increasing compatibility. Among all the fluorescence parameters measured (Fv/Fm, phi PSII and phi NPQ), the Fv/Fm ratio, proportional to the maximal quantum yield of PSII photochemistry, was shown to be the most sensitive to graft stress. The values of the Fv/Fm ratio images were higher in S single-grafted plants than R single grafted, while Fv/Fm values were similar in both cultivars in double grafted plants. On the other hand, R double grafted had higher Fv/Fm values than R single grafts. The results showed that CFI is useful in evaluating graft compatibility problems. (C) 2012 Elsevier B.V. All rights reserved.
PB ELSEVIER SCIENCE BV
SN 0304-4238
YR 2013
FD 2013
LK http://hdl.handle.net/20.500.11939/4928
UL http://hdl.handle.net/20.500.11939/4928
LA en
NO Calatayud, Angeles, San Bautista, A., Pascual, B., Vicente Maroto, J., Lopez-Galarza, Salvador (2013). Use of chlorophyll fluorescence imaging as diagnostic technique to predict compatibility in melon graft. Scientia Horticulturae, 149, 13-18.
DS MINDS@UW
RD Jan 16, 2021