Volume 12, Issue 46 (1-2009)                   JWSS 2009, 12(46): 655-664 | Back to browse issues page

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Gorji M, Eshghizadeh H, Khosh Goftarmanesh A, Ashrafi A, Moalem A, Poursakhi N, et al . Iron Efficiency of Some Crops Grown in Solution Culture . JWSS. 2009; 12 (46) :655-664
URL: http://jstnar.iut.ac.ir/article-1-1150-en.html
Abstract:   (22812 Views)
Iron deficiency is a worldwide nutritional constraint in agricultural lands especially in calcareous soils. Cultivation of crops tolerant to Fe-deficiency is an approach to combat Fe deficiency. The aim of this investigation was to evaluate Fe-efficiency of selected important crops in Iran. A completely randomized block design in triplicates was conducted at IUT research greenhouse in fall 2006. Sweet corn (Hybrid K.S.C. 404), grain corn (Hybrid S.C. 500), safflower (cvs. S3110, S-411), sunflower (Hybrid Hyson) and durum wheat (cv. Shuga) were grown in a nutrient solution at two Fe levels (1 and 10 µM Fe-EDTA). The results showed significant (P < 0.01) variation among the studied crops in Fe-efficiency. Corn hybrids were more sensitive to Fe deficiency (FeE = 26%) as compared to other studied crops, and the greatest reduction was observed in their shoot dry matter at 0.1 mM Fe- EDTA treatment. In contrast, the lowest decrease in root and shoot dry matter weight under Fe-deficient condition was found for durum wheat (FeE=94%). Comparing the calculated Fe-efficiency using different indices showed that Fe concentration and content in the whole plant, shoot and root had no relationship with crop tolerance to Fe deficiency.
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Type of Study: Research | Subject: Ggeneral
Received: 2010/06/19

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