تأثير تراكيز مختلفة من الصوديوم و الكالسيوم في وسط نمو نباتي الحنطة و الذرة الصفراء

الملخص EN

An experiment was conducted in Petri dishes to investigate effects of Na2SO4 and CaSO4 in germination percentage and speed ratio of Wheat (Triticum aestivum L.

var.

Iba ) and Corn ( Zea mays L.

var.

Rabbi ) seeds and some growth parameters of both species seedlings , in Education College for girls Labs .

Results showed that there was a decrease in germination percentage and speed ratio and their growth of both species which grown in sodium content medium , also the results showed an increase in germination percentage and speed ratio of both species seeds which grown in calcium content medium , especially at 5 mM concentration ( in present of 70 mM of sodium sulphate ) which gave the highest increase ratio .

Results also showed significant increase in seedlings growth parameters by the ratios of ( 92% , 100%, 100 % ) and ( 68%, 63%, 92% ) compared to control , in the average of shoot and root lengths and leaf area of Wheat and Corn seedlings respectively , which indicates the ability of Calcium utilisation to reduce sodium injuries in the affected saline media .