EVALUATION OF THE EFFECTS OF DIFFERENT SOWING DATES AND FAO STAGE GROUPS ON YIELD AND YIELD ATTRIBUTS OF SECOND CULTIVATED SEASON FOR SILAGE CORN VARIETIES

Abstract

This study aims at investigating the effect of various sowing dates and FAO stage groups onyield and yield attributes of second cultivated silage corn varieties under Siirt ecologicalconditions to shed light on the future researches and to assist the farmers in the region. In thisresearch, ADA 523, AGA and ADA 334 varieties produced by Maize Research Institute. Theexperment was carried out at the Siirt Universtity faculty of agriculture field crops in 2018. Theexperiment was ranged in randomized blocks with 4 replications according to the split blockdesign arrangements. Sowing times were done in 15 June, 30 June, 15 July main plot andvarieties were arranged as sub plots. Our results indicated that, Maize varites and sowing dateshad different response to studied characteristic lik, plant height, stalk thickness, stalk and leafratios and were statistically insignificant. Regaring green plant and dry matter yields, it was observed that AGA cultivar was produed higher yild in 15 July cultivation compared to othervarites and sowing times.