EFFECT OF MOISTER TENSION LEVELS, MAGNESIUM AND SOIL TEXTURE ON SOME MORPHOLOGICAL PROPERTIES OF CORN. (Zea mays L .)

Abstract

Abstract:A Factorial experiment has been carried out an Random Complete Block Design (RCBD) with three replicates for each treatments. Flowerpots with a capacity of (8 kg ) of soil, Corn was grown on the 15th july 2011. Irrigation processes were done depending on weight method to maintain soil moisture with the limits of moisture tension extent that represent tension rates of water ; 25%, 50% and 75%. calculate Some morphological characteristics. Below are the most important results. Moisture tension difference has significant influential all studied morphological characteristics(plant height, leaves area, Number of leaves. per plant, dry weight of the green parts and dry weight of the roots). The moisture tension rate (%25) has got excellence over the rate %50and %75 and it resulted (74.13 cm, 599.63 cm2, 12.26 leaf.plant-1, 42.73 gm and 23.76 gm), respectively. Also the increase in the level of magnesium addition has significant effects. The addition of 150kg.h-1 of magnesium got excellence over level (0, 50, 100) kg.h-1. Which was 67.33cm, 462.cm2, 11.9 leaf.plant-1, 32.8 gm 17..5 gm), respectively. Soil texture has significant effect; blend clay soil got excellence over the blend sandy