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Influence of three temperature regimes on seed germination of three barley cultivars

Author: Hussein Mahsen Murtadha Al-Bakka
Journal: Kufa Journal for Agricultural Sciences مجلة الكوفة للعلوم الزراعية ISSN: 20727798 23128186 Year: 2015 Volume: 7 Issue: 3 Pages: 224-232
Publisher: University of Kufa جامعة الكوفة

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Abstract

Seed germination rate of three barley cultivars (cv.) were studied under three temperatureregimes at Laboratories of Faculty of Agriculture, University of Kufa, in the year 2013. Thethree barley cv. were 1- Arefat 2- Syrian local and 3- Iraqi local. The temperature regimeswere 20, 25 and 30 C̊. Seven terms were used to study the germination process of barley seedsin order to determine the ideal evaluation of germination rate and sowing rate. The studiedterms were: germination percentage GP, germination vigor GV, germination speed GS,germination index GI, speed of germination coefficient SGC, seeds agriculture value SAVand corrected planting rate CPR. One hundred seeds were used in each experimental unitand germinated seeds were scored at 24 hours intervals.The Arefat cv. obtained the highest germination rate in comparison to other cv., but thehighest value was under 25 C̊ condition. It was also found that 80% of the seeds weregerminated throughout the first, second, and third accounts. The other terms behaved insimilar way. The recommendations can be summarized in which the sowing rate for Arefatand Iraqi local barley cv. is 108 kg.h -1 (27 kg. donam -1), and it is 120 kg .h-1 (30 kg. donam-1) for the cv. local Syrian. Germination conditions should be provided during the first fivedays in the best way possible.

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