7432

6938

كارشناسي ارشد

خاكشناسي

اصفهان: دانشگاه صنعتي اصفهان، دانشكده كشاورزي

1391

ده، 87ص.: جدول

ص.ع. به فارسي و انگليسي

اميرحسين خوش گفتارمنش

مجيد افيوني

16/10/91

محمدعلي حاج عباسي، جمشيد رزمجو

1396/09/22

كتابنامه

كشاورزي

مهندسي كشاورزي

ID6938

به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي

87 Effect of Zinc Amino Chelates on Yield and Some Grain Quality Attributes of Different Zinc Efficiency Wheat Genotypes Mozhgan Sedigh mozhgan sedigh@yahoo com 10 September 2012 Department of Soil Science Collage of Agriculture Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi Dr A H Khoshgoftarmanesh amirhkhosh@cc iut ac ir Abstract In this experiment soil application effects of certain synthetic zinc amino chelates i e Zn glutamine Zn Gln 2 Zn glycine Zn Gly 2 Zn arginine Zn Arg 2 and Zn histidine Zn His 2 on yield and grain nutritional quality of wheat were compared with a commercial Zn sulfate fertilizer Two bread Triticumeastivum L cvs Back Cross and Kavir and a durum wheat genotype Triticum durum L cv Durum differing in Zn deficiency tolerance were exposed to 0 20 and 40 mg kg 1 Zn All Zn sources were equally applied at planting tillering and heading stages at a total rate of 15 mg Zn kg 1 soil The experiment was set up on factorial arranged in a completely randomized design each treatment contained three replicates Plants were sampled at the tillering stage for analysis of catalase CAT and ascorbateproxidase APX in the shoots and at the maturity stage for grain yield and quality attributes Soil application of Zn fertilizer significantly increased grain yield of all three wheat genotypes although the magnitude of this increase varied dependent on the applied Zn source and plant genotype Application of 20 mg kg 1 Zn from all Zn fertilizer sources except Zn His 2 significantly increased the grain yield of Durum The grain yield of wheat plants supplied with Zn Gly 2 and Zn Gln 2 was 46 and 14 higher than those supplied with Zn sulfate respectively Soil application of Zn Gly 2 and Zn sulfate had no significant effect on grain protein content In contrast Zn Gln 2 Zn Arg 2 and Zn His 2 treatments increased grain protein content of all three wheat genotypes in comparison with Zn sulfate and control treatments The wheat plants supplied with Zn Arg 2 and Zn His 2 also accumulated higher Zn and Fe in their grains than those supplied with the other Zn fertilizers Soil application of Zn Arg 2 reduced molar ratio of phytic acid to Zn in wheat grain The effect of Zn amino chelates on activity of catalase CAT and ascorbate proxidase APX was dependent on the amino chelate type and wheat cultivar Zinc amino chelates resulted in increase of CAT activity in the leaves of Kavir and Back Cross cultivars while they were ineffective in Durum cultivar In all three wheat cultivars leaf activity of APX was also significantly increased by Zn His 2 and Zn Arg 2 over the Zn sulfate treatment The results obtained from the present study showed that soil applied Zn amino acid chelates are more effective than Zn sulfate in supplying Zn for wheat Keywords Triticum aestivunm Enzyme Amino acid Zinc sulfate Phytic acid Grain protein PDF created with pdfFactory Pro trial version www pdffactory com

اميرحسين خوش گفتارمنش

مجيد افيوني

محمدعلي حاج عباسي، جمشيد رزمجو