Bazı Silajlık Sorgum ve Sudan Otu Çeşitlerinin İkinci Ürün Verim ve Bazı Bitkisel Özelliklerinin Belirlenmesi

The aim of this paper was to investigate some plant traits and yield of silage sorghum cultivars and sudangrass grown as the second crop in the center of agricultural research and applying, in the 2015 year. In the experiment was used three sorghum (Rox, Early Sumac, and Leoti), two sorghum x sudangrass hybrid (Nutri Honey and Hay Day) and one, Sudan-grass (Gözde 80) under irrigated conditions of Iğdır. The experimental layout was completely randomized block design with three replicates. Plant height of cultivars (cm), dry matter ratio (%), green herbage and dry matter yield (kg da-1), leaf ratio (%), the stem ratio (%), ear rate (%), the number of leaves per plant and the plant weight (g) was determined in the trial. According to results of experiments, plant heights (197.1-299.4 cm), green yield (3482-8337 kg da-1), dry matter ratio (32.0-38.0 %), dry matter yield (1141.2-2658.1 kg da-1), leaf ratio (15.7-20.0%), the stem ratio (71-78 %), the panicle ratio (7.3-9.3%), the number of leaves (9.5-12.5), the plant weight (375.5-875.4 g plant-1) was obtained. Additionally, positive and a significant correlation was observed between the of plant weight and the dry matter yield on the green herbage yield, but the effects of plant height, leaf, stem, leaves rates were insignificant. These results suggested that Hay Day, Leoti and Early Sumac will be able to grow as a silage in respect of green herbage and dry matter yields under the ecological condition of this region