Table 2: The main effect of plant spacing and NP fertilizer rates on seed yield and yield components of Bombay Red onion variety grown at Shewa Robit.

Spacing (cm) Umbel Diameter(cm) Number of Seeds Per Umbel Seed Weight Per Umbel(g) Seed Yield Per Plot(g) Seed Yield Per Hectare (kg) 1000 Seed Weight (gm)
10 x 20 x 40 6.144ab 753.7b 2.811c 383.8b 511.7c 3.654a
20 x 30 x 50 6.366a 910.2a 3.516a 545.3a 727.1ab 3.694a
10 x 40 5.656cd 824.7ab 3.243abc 505.9ab 674.1ab 3.609a
10 x 50 5.975bc 904.1a 3.333ab 463.2ab 612.3bc 3.689a
10 x 30 5.533d 795.3b 2.954bc 561.7a 748.9a 3.685a
LSD (5%) 0.3745 93.1 0.4756 98.6 130.8 ns
Fertilizer rate (P2O5 and N kg ha-1)
0 x 0 5.734b 820.1bc 2.899b 281.3d 375.0c 3.529b
86.25 x 85.5 5.809b 756.1c 2.984b 374.8cd 499.8c 3.697ab
115 x 114 6.267a 914.6a 3.293ab 663.6a 879.4a 3.634ab
143.6 x 142.5 6.045ab 895.0ab 3.636a 640.7ab 853.8a 3.873a
69 x 142 5.818b 802.2bc 3.046b 499.5bc 666.1b 3.598ab
LSD (5%) 0.3745 93.1 0.4756 98.6 130.8 0.2021
CV (%) 8.6 15.1 20.4 27.3 27.2 3.529b

LSD (5%) = Least Significant Difference at P=0.05, CV (%) = Coefficient of Variation ns= non-significant. Means in columns with the same letter(s) in each treatment are not significantly different.