Year: 2005
Type: article
Abstract: To study the effects of salinity stress on the growth stages of synthetic wheat genotypes, an experiment was conducted, using a factorial experiment with three replicates.In a glass-house three synthetic and one native (known as TABASI ) wheat genotypes were seeded in the pots containing homogenous soil.After vernalization in earring stage, all of the treatments were exposed to three salinity level induced by 0, 2.5, 5 g/l salt in tap water.Watering continued until the plants were harvested.Salinity raised the contents of Na + in the stem and the leaf but did not affect the grain.The content of K + in the stem did not vary, but showed an increase in the leaf.The K + /Na + ratio in the leaves decreased.Concentration of chlorophyll a and chlorophyll b were reduced by salinity but the ratio Chl.a/Chl.b didn't vary.There were no significant differences in the number of grain in an ear but salinity led to significant reduction in total dry matter production.Selectivity increased in the stem and leaf, respectively.Synthetic wheat genotypes had high harvest index under salinity conditions and also the content of K + in the leaves at the most synthetic genotypes was higher than native in the native genotype TABASI.The study demonstrates that the synthetic wheat genotypes have high ability in compartmentation and allocation processes and that these genotypes can tolerate salinity as well as drought.The high selectivity that is the characteristic of these genotypes may enable them to produce an acceptable yield even under saline conditions.
DOI: 10.17221/6189-cjgpb
Author: F. Mohabbati
Institution: University of Tehran
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: gold
Estimated APC paid: $609
Funder: University of Tehran
OpenAlex ID: W2791607104