Akademik Veri Yönetim Sistemi
V. Balkan Agricultural Congress, Edirne, Türkiye, 20 - 23 Eylül 2023, ss.254-269, (Tam Metin Bildiri)
Salt stress is one of the most important environmental problems limiting
plant development and productivity. In particular, exposure to salt stress
during seedling developmental stages limits sustainable agricultural
production. In this study, the effects of control (K), proline (P, 15 mM),
humic acid (HA, 5 lt/ha), and proline + humic acid (P+HA) applications on
seedling development characteristics of wheat seeds were investigated at four
different soil salinity levels (0.28, 4.17, 9.33, and 15.23 dS m-1).
The responses of wheat seedlings to soil salinity were evaluated using the
parameters of proportional tolerance index (RTI), root/shoot ratio (RSR), shoot
weight ratio (SWR), root weight ratio (RWR), stress tolerance index for plant
height (PHSI), Shoot Fresh Weight Stress Tolerance Index (SFSI), Root Fresh
Weight Stress Tolerance Index (RFSI), Shoot Dry Weight Stress Tolerance Index
(SDSI) and Root Dry Weight Stress Tolerance Index (RDSI) were evaluated.
According to the results, PHST ranged from 51.6% to 113.5%, SFSI ranged from
22.3% to 116.4%, RFSI ranged from 13.6% to 168.5%, RDSI ranged from 12.7% to
136.4%, and RTI ranged from 37.3% to 157.0%. The highest seedling development
traits in wheat seeds were observed in the order P+HA>P> HA compared to
the control. In agricultural production areas with high salinity, it is
recommended that wheat seed be pretreated with 15 mM proline and 5 lt/ha humic
acid be incorporated into the soil before sowing to ensure salt-tolerant and
high-quality wheat seedling characteristics.