Abstract:
Soil salinity is a very important ecological factor that affects the
growth and the yield of cultivated plants, especially in arid and semi-arid
regions. This decrease in land productivity due to salinization, come in
contradiction with increased food need. In the effort to create plants resistant to
salinity, exploitation of diverse sources of variability as local landraces is
required. Onion (Allium cepa L.) is a very important vegetable crop considered
salt sensitive. The aim of this work was to determinate the effect of salt stress of
11 landraces collected from NE Romania, in Iasi and Botosani districts in areas
with saline excess. The results of research show that only some of the studied
cultivars reacted to salt stress according to the biphasic model Munns. Only
one of this local landraces presented a better salt resistance expressed by high
chlorophyll content and a yield close to the control variant.
