Effect of organics, inorganics and biofertilizers on growth and yield of gladiolus (Gladiolus grandiflorus L.) cv. American beauty

The corms of gladiolus (Gladiolus grandiflorus L.) cv. American Beauty” inoculated with Azotobacter + Phosphate Solubilizing Bacteria (PSB) as well as application of FYM @ 5 kg/m² reported significant difference in days taken to sprouting, plant height (cm), number of leaves per plant, leaf area (cm²). The highest plant height (64.17cm), number of leaves (9.21) and leaf area (cm²) and minimum days taken to sprout (8.63) were registered due to the application of 100% RDF, which was at par with 75% RDF. Significantly earlier spike emergence, higher number of spikes per plant and higher weight of florets per spike were recorded with Azotobacter + Phosphate Solubilizing Bacteria inoculation over application of FYM @ 5 kg/m². Significantly minimum days taken to spike emergence, maximum number of spikes per plant and highest weight of florets per spike were registered with 100% RDF. The interaction of bio-inoculants and FYM (B x F) was found to be significant in respect to weight of florets per spike.