Abstract
Direct effects and after-effects of soil drought for 7 and 14 d were examined on seedling dry matter, leaf water potential (ψ), leaf injury index (LI), and chlorophyll (Chl) content of drought (D) resistant and sensitive triticale and maize genotypes. D caused higher decrease in number of developed leaves and dry matter of shoots and roots in the sensitive genotypes than in the resistant ones. Soil D caused lower decrease of ψ in the triticale than maize leaves. Influence of D on the Chl b content was considerably lower than on the Chl a content. In triticale the most harmful D impact was observed for physiologically younger leaves, in maize for the older ones. A period of 7-d-long recovery was too short for a complete removal of an adverse influence of D.
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Abbreviations
- Chl:
-
chlorophyll
- D:
-
drought
- DM:
-
dry matter
- DR:
-
recovery from drought
- LI:
-
leaf injury index
- R:
-
root
- RGR:
-
relative growth rate
- S:
-
shoot
- ψ:
-
leaf water potential
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Grzesiak, M.T., Rzepka, A., Hura, T. et al. Changes in response to drought stress of triticale and maize genotypes differing in drought tolerance. Photosynthetica 45, 280–287 (2007). https://doi.org/10.1007/s11099-007-0045-x
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DOI: https://doi.org/10.1007/s11099-007-0045-x