Table 4 Grand mean performance, blend response (BR %), heterotic response (HR %) and susceptibility index (SSI) for four populations of cotton genotypes cultivated in normal and late planting date
From: Blend response of four Egyptian cotton population types for late planting stress tolerance
Genotype | NP | LP | SSI | NP | LP | SSI | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean | BR % | HR % | Mean | BR % | HR % | Mean | BR % | HR % | Mean | BR % | HR % | |||
Seed cotton yield/plant; SCY/P (g) | Lint cotton yield/plant; LCY/P (g) | |||||||||||||
Inbreds | 177.9 | 123.3 | 1.3 | 70.2 | 46.9 | 1.1 | ||||||||
Hybrids | 166.7 | − 3.1 | 90.9 | − 22.3 | 2.1 | 67.2 | − 0.5 | 35.1 | − 21.0 | 2.0 | ||||
Blends of inbreds | 123.4 | − 30.4 | 144.2 | 24.9 | − 0.9 | 49.5 | − 28.6 | 55.9 | 25.2 | − 0.6 | ||||
Blends of hybrids | 143.5 | − 4.9 | 86.1 | 49.2 | 0.4 | 56.8 | − 10.0 | 48.2 | 52.0 | 0.4 | ||||
Overall mean | 150.2 | 119.5 | 60.1 | 46.2 | ||||||||||
LSD0.05 | 66.9 | 9.3 | 28.1 | 3.56 | ||||||||||
Bolls/Plant | Lint percentage; LP (%) | |||||||||||||
Inbreds | 13.0 | 8.0 | 1.7 | 39.6 | 38.1 | |||||||||
Hybrids | 11.8 | − 4.8 | 6.0 | − 12.6 | 2.2 | 40.4 | 38.8 | |||||||
Blends of inbreds | 8.8 | − 32.2 | 9.3 | 15.3 | − 1.0 | 40.2 | 38.7 | |||||||
Blends of hybrids | 9.5 | − 14.2 | 9.3 | 54.1 | − 0.3 | 39.6 | 39.2 | |||||||
Overall mean | 10.6 | 8.6 | 40.0 | 38.7 | ||||||||||
LSD0.05 | 4.9 | 1.2 | ns | ns | ||||||||||
Seed index; SI (g) | Lint index; LI (g) | |||||||||||||
Inbreds | 8.9 | 8.8 | 0.2 | 5.9 | 5.5 | |||||||||
Hybrids | 9.3 | 4.4 | 8.3 | − 7.3 | 2.1 | 6.4 | 5.1 | − 3.3 | ||||||
Blends of inbreds | 8.9 | − 1.8 | 8.9 | − 0.15 | − 0.1 | 6.0 | 5.5 | 1.9 | ||||||
Blends of hybrids | 8.9 | − 2.0 | 8.6 | 3.8 | 0.6 | 5.9 | 5.6 | 7.0 | ||||||
Overall mean | 9.0 | 8.6 | 6.1 | 5.4 | ||||||||||
LSD0.05 | 0.3 | 0.1 | ns | 0.8 | ||||||||||