Performance of two Genotypes of Maize (Zea mays L.) Under Different Spaces

Abstract

A field study was conducted during Autumn season 1999 and Spring season 2000 at experimental farm department of Field Crop Science, College of Agriculture, Abu-Ghraib.Univ. of Baghdad. The aim of the study was to investigate performance of Genotypes of maize (Bohoth 106 and IBA 3001) to difference densities with different spaces (80 cm 20 cm,100 cm  16cm , 40 cm  40 cm, 80 cm  30 cm, 80 cm  15 cm and 80 cm  10 cm) The experiment was laid out in randomized complete block design (RCBD) with three replications.The results obtained could be summarized as following:The lower density (80 cm  30 cm) gave the highest value of number grain of ear (668.4 and 735 .4 grain) , weight of single grain (261.6 , 223.9 mg) and yield of plant (120.1 and 87.0 gm) respectively in Autumn and Spring while treatment of highest density (80 cm  10 cm) gave high value of yield grain (9.40 5.4 ton.ha-1) respectively at both seasons.Iba 3001 under density 62500 plant.ha-1 (80 cm  20 cm) gave high value of grain yield 11.1 and 5.2 ton.ha-1 respectively in both seasons.