Quality of seed and nutrient uptake of onion seed as influenced by bulb size, varities and spacings

The present experiment was carried out to establish the impact of bulb size (3.0–4.0, 4.0–5.0 and 5.0–6.0 cm), varities (Hisar-2 and Nasik-red) and spacings (30 x 10 cm, 30 x 20 cm and 30 x 30 cm) on the seed yield, quality of seed and nutrient uptake through onion seed crop. Obviously 5.06.0 cm size of bulb of Hisar-2 variety at 30 x 30 cm spacing gave sustainable increase in shoot weight plant⁻¹, 1000 seed weight, seed yield (qha⁻¹) and germination percentage of seed. A precise increase in protein content in seed and N,P and K uptake through seed was produced by bulb size of 5.0–6.0 cm of Hisar-2 varities at 30 x 20 cm spacing in the present investigation.