Performance evaluation of pre-release sweet corn hybrids under varying plant density and nutrient levels

Abstract

Field experiment was conducted at the Department of Millets, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu during kharif 2019 to evaluate the performance of pre-release sweet corn hybrids under varying plant density and nutrient levels. The soil was sandy clay loam, low in available N, medium in available P and high in available K. The experiment was laid out in split-split plot design. In the main plot, two plant densities viz 60 cm x 20 cm and 60 cm x 15 cm, in the sub-plot, two nutrient levels viz 100 per cent RDF (120:60:45 NPK kg/ha) and 150 per cent RDF (180:90:68 NPK kg/ha) and in the sub-sub-plot, two pre-release sweet corn hybrids viz Nuzi 260 and Misthi were tried in three replications. Based on the results of experimentation it was found that among the sweet corn hybrids, NUZI 260 was the most promising hybrid under a spacing of 60 cm x 20 cm with application of 150 per cent recommended dose of fertilizer ie 180:90:68 NPK kg/ha.