Evaluating of Some Treatments on Breaking seed Dormancy in Mesquite
2013; Volume: 4; Issue: 7 Linguagem: Inglês
ISSN
2051-1914
AutoresRoghayeh Majd, Payam Aghaie, Ebrahim Kazerooni Monfared, Mohammad Taghi Alebrahim,
Tópico(s)Weed Control and Herbicide Applications
ResumoSeed dormancy is one of the well-known features in many weed seeds caused weed control to be hard. Mesquite, as a woody perennial invasive plant has become troublesome in the arid and semi-arid regions of Iran. The effect of mechanical (sandpaper and scalpel), chemical (sulfuric acid and sodium hydroxide) and boiling water on breaking seed dormancy in two populations of Mesquite were examined. For mechanical treatments, seeds were abraded 10, 20 and 30 times with two kinds of sandpaper or scarified with scalpel. Seeds were also soaked in boiling water for 2, 5 and 10 min. For chemical treatments, the seeds were soaked for 10, 20, 30, 40, 50 and 60 min in 98% sulfuric acid or 10, 20, 30, 40 and 50 min in 50%, 70% and 90% sodium hydroxide solution. Germination was obtained through scarification with scalpel (89%, 68.2%), sulfuric acid (72.8%, 54.2%) and boiling water (53.6%, 28%), in Borazjan and Kashmar populations respectively. Sodium hydroxide (22.6%, 1%) and sandpaper (19.2%, 3.5%) have no effect on both populations, particularly in Kashmar. In general Kashmar showed more hardseedness than Borazjan populations.
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