Table 1 Scarification treatment of cotton seeds
From: Cotton seed management: traditional and emerging treatment approaches for enhanced productivity
S. No | Method of scarification | Result | Reference |
|---|---|---|---|
1 | Pre-sowing high temperature stress (50–70 °C, 24–48 h) | • Heat treatment of cotton seed at 50–70 °C stimulated the seedling emergence and growth of cotton plants • Untreated seeds have a germination rate of 21% whereas treated seeds have a germination rate of 40%–50% after 7 days of planting | (Khan et al. 1973) |
2 | Pre-sowing high temperature (60 °C, 10 min) | • Heat treatment of cotton seed at 60 °C increased the seedling emergence | (Basra et al. 2000) |
3 | Pre-sowing heat stress (60 °C, 8 h) | • Pre-sowing heat treatment of cotton seeds increased the seed vigour to 86% at 60 °C which is similar to the untreated seeds • Heat treatment at 70 °C increased the germination rate to 80% almost near to that of control (86%) • Pre-sowing heat stress at 70 °C also decreased the fatty acid content of the treated seed compared with control which indicates the enhanced oil quality | (Basra et al. 2004) |