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Influence of bulb size and growth regulators on growth, seed yield and quality of onion cv. nasik red



Influence of bulb size and growth regulators on growth, seed yield and quality of onion cv. nasik red



Seed Research (New Delhi) 30(2): 223-229



An investigation was carried out during rabi 2000 to evaluate the performance of three different size bulbs viz., large (>60g), medium (30-60g) and small (<30g) and five growth regulators each with two concentrations viz., GA3 (25 and 50 ppm), miraculan (1000 and 2000 ppm), NAA (100 and 200 ppm), MH (10 and 20 ppm) and CCC (500 and 1000 ppm) and one control. The size of the mother bulb had significant effect on growth and yield parameters. Large size bulbs gave significantly higher plant height, number of leaves/plant, umbels/plant, umbel diameter, seed weight/umbel, seed yield/plant and per hectare, seed germination and seedling vigour over other sizes. Among the growth regulators, GA3 50 ppm or miraculan 2000 ppm or MH 20 ppm sprayed at 30 DAP gave higher seed yield, germination and vigour values. Among the interaction, the large or medium size bulbs sprayed with GA3 50 ppm or miraculan 2000 ppm or MH 20 ppm gave significantly higher seed yield/ha, germinability and vigour values compared to other combinations.

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Accession: 010837672

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