Evaluation of cold tolerance in wheat (Triticum aestivum L.)

Document Type : Research Article

Authors

H Azizi

A Nezami

M Nasiri mahalati

H. R Khazaei

Ferdowsi University of Mashhad

10.22067/gsc.v5i1.902

Abstract

In order to determine freezing tolerance of 14 wheat cultivars including Anza, Bezostaja, Pishtaz, Tous, Zagros, Zarrin, Shahryar, Falat, Qods, Glenson, Maron, Navid, Niknejad and MV-17 that were grown on field, samples of each cultivar after hardening in the field were harvested in 4-6 leave stages and trimmed to 2cm above and below the crowns and put on the thermogradient freezer. After freezing in the range of 0 to -20 oC, samples were transferred to the greenhouse and planted in the pots. Survival percentage, height, leaf area, chlorophyll content, dry weight, LT50 and DMT50 were determined after 3 weeks. Survival percentage after freezing was different in cultivars (P

20.1001.1.20081472.1386.5.1.12.6

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