Radicle Emergence as Seed Vigour Test Estimates Seedling Quality of Hybrid Cucumber (Cucumis sativus L.) Cultivars in Low Temperature and Salt Stress Conditions

This work was conducted on the use of RE (radicle emergence) test to estimate seedling emergence (SE) and quality (seedling shoot weight (SSW), root (SRW) height (SH)) twelve hybrid cucumber seed lots with high germination (>95%) at low temperature conditions, salt conditions a combination two. The percentages RE, which is 2 mm radicle protrusion 25 °C in dark, were counted between 18 h 32 h. seeds sown peat moss trays kept 15 (low stress), or salty water applied as 100 mM NaCl (salt stress) for three days, both combined-stress environment. Seedling parameters reduced by stress environments their combination. SE, SSW, SRW SH values ranged between: 91–100%, 614–844 mg, 102–143 6.8–8.8 cm temperature; 90–98%, 598–904 101–154 6.5–7.8 stress; 76–92%, 464–608 97–133 5.8–6.9 great differences seen among (20–28 h) regressed values. 24 had highest R2 significant all = 0.596–0.858, p < 0.05–0.001 0.620–0.827, salt; 0.686–0.842, combined stresses. We concluded that vigour can be used successfully highly germinating lots. Use its influence high-quality production discussed.