Akademik Veri Yönetim Sistemi
Turkish Journal of Range and Forage Science, cilt.4, sa.1, ss.43-52, 2023 (Hakemli Dergi)
The aim of study was to investigate the effects of salicylic acid on germination
and seedling parameters of maize cultivars (Zea mays L.) under drought stress
conditions. The research was carried out in a factorial experiment design with four
replications in random blocks. In this study, three different silage maize cultivars
were used (Side, Pehlivan and Burak). Drought conditions were established using
Polyethylene glycol-6000 (PEG-6000) at three different levels (0.-0.4 MPa and -
0.8 MPa). Salicylic acid applications were calculated at three different doses of
0-0.1-0.2 mM. The parameters examined in Side cultivar gave superior results
exposed to drought conditions compared to other cultivars. Differences were
determined in the response of maize cultivars to drought stress, and statistically
noteworthy diminishes were also observed as the drought level enhanced. It was
displayed that salicylic acid applications generally boosted germination and
seedling parameters exposed to drought conditions compared to control. The
maximum shoot lenght was detected at 0.2 mM SA dose with 2.30 cm but that
did not exhibit significant numerical differences. SA applications, on the other
hand, did not have an effect on root length. Moreover, the best result of shoot
fresh weight was recorded in 0.1 mM SA application, as root fresh weight gave
the best in 0.2 mM SA application. Furthermore, when a correlation is made
between the specified parameters, the highest relation was markedly positive and
linked between GR and GI (r: 0.99, p<0.01). In this study, it was found that the
growth deficiency that may occur under drought stress conditions that maize seeds
may encounter during the germination period can be reduced and even improved
by salicylic acid applications.