Influence of Bio-fertilizers on Growth, Flowering and Yield of African Marigold cv. Orange Bunch

The present investigation was conducted at Horticultural Research Station, Anantharajupet to study the influence of bio-fertilizers on growth and productivity of flower and seed yield of marigold cv. orange bunch. The results revealed that plant height (45.33 cm, 69.16 cm), plant spread (53.47 cm, 53.05 cm), stem girth (6.15 cm) were maximum in T3 (Azotobactor seed treatment). Whereas, number of primary branches (11.25), longest primary branch (45.62 cm), number of secondary branches (24.75), number of tertiary branches (29.50), minimum days for visibility of first flower bud (27.33), lesser period for flower break (11.66 days), fewer days for 50 percent flowering (42.91), higher count of flowers per plant (73.08), flower size (7.14 cm × 6.96 cm), flower diameter (8.31 cm), flower stalk length (3.37 cm), fresh weight of single flower (8.32 g), highest yield of fresh flowers per plant (328.09 g), number of seeds per flower (562.00), seed yield per flower (1.16 g) and weight of 1000 seeds (4.10 g) were recorded in the treatment T2 (PSB seed treatment).