Evaluation the Effect of Water Availability on Wild Wheat (Triticum boeoticum) and Wild Barley (Hordeum spontaneum) Grass Weed Seed Emergence in Comparison to Wheat (Triticum aestivum)

Document Type : Research Paper

Abstract

Water availability effect on seed emergence of wild wheat and wild barley grass weeds in comparison to wheat was evaluated in a randomized complete block design by 4 replications in Agricultural and Natural Resources Research Center of Lorestan in autumn of 2013. Different levels of irrigation and species seed kinds were allocated to main plots, and subplots respectively. The water requirement for emergence initiation of intact seeds of wild wheat and wild barley was 73.8% and 51.1% higher than that for wheat, respectively. Maximum emergence % of intact seeds of wild wheat became 1.9, 3.8, and 6.2 times, and wild barley 1.68, 2.01 and 3.25 times as much by increasing of water availability from 12.5 mm to 15, 17.5 and 20 mm, respectively. Results show that the high percent of wild wheat and wild barley seeds (>75%) will emerge if the water requirement to be made available, that is prepare the way to management of this weeds.

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References

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