Effect of Plant Densities on Some Growth Traits of Varieties of Sorghum (Sorghum Bicolor (L) Moench).

Abstract

   This study was applied in one of the farmers' fields located in the Abi gharaq area 10 km northwest of the Babylon Governorate district during the autumn season of the year 2019, with the aim of studying the effect of plant densities 83333, 71420 and 53333 plant ha^-1) and took the symbols (K3, K2 and K1), on some growth traits of three different varieties of sorghum (Enqathe, Rabeh and Kafir) its symbol was (V3, V2 and V1). As the variety outperformed V1 by giving it the highest average in characteristic of the number of days from planting up to 50% flowering and leaf area. Cm² reached (70.77 day and 4,050.66 cm²) While variety V2 gave the highest average in character of the number of branches. Plant^-1. The number of leaves plant^-1 (2.2 and 11.82 leaf plant^-1). While the variety V3 gave the highest average in the characteristic of plant height. Cm reached (176.33 cm). The plant density had a significant effect on all the studied traits, so the plant density of K3 gave the highest average in the characteristic of the number of days of planting up to 50% flowering and plant height. Cm reached (70.77 day and 163.22 cm), While the plant density of k1, gave the highest average in the characteristic of the number of branches of a plant, the number of leaves plant^-1, and the leaf area. Cm² reached (2.11 branch plant^-1, 11.76 leaf Plant^-1 and 4095.89 cm²).