an efficient method in breaking of dormancy from b unium persicum (boiss) fedtsch seeds: a valuable herb of middle east and central asia

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ID: 255911
2014
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Abstract
Objective: To develop a protocol for breaking of seed dormancy and increasing the seed germination rate of Bunium persicum. Methods: The seeds were treated with 3.1, 6.3, 12.5, 25, 50 and 100 μmol/L of benzyl aminopurine, gibberellic acid (GA3), thidiazuron (TDZ) and forchlorfenuron. Then, seeds were transferred to two different temperature conditions including room temperature (25 °C) and chilling temperature (2-5 °C). Results: The treatment of moist seeds with chilling temperature (2-5 °C) broke seed dormancy and showed maximum germination, which was 54.7% after 60 d treatment. Also, the treatment of dry seeds with chilling temperature broke seed dormancy with 9.3% germination rate after 120 d. Treatment of seeds with different level of plant growth regulators showed that under moist-room condition, there was evidence of higher and lower seed germination rate: GA3 (100 μmol/L) with 46.7% and TDZ (50 μmol/L) with 6.67% respectively. In addition, the results showed that under moist-chilling condition, TDZ (6.3 μmol/L) with 53.3% seed germination rate had higher influence on breaking seed dormancy. Treatment of seeds with combination of TDZ and GA3 under moist-chilling condition revealed higher rate of breaking of seed dormancy when 6.3 μmol/L TDZ was combined with 100 μmol/L GA3, showing 93.7% germination rate. Conclusions: The effect of plant growth regulators coupled with chilling temperature on breaking of seed dormancy could provide a large number of seedlings while the long juvenile time which is the next restricting factor of plantation still remained. Thus, the subsequent growth of seedlings to provide a large number of corms is necessary for successful plantation.
Reference Key
emamipoor2014asianan Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Yousef Emamipoor, Mahmood Maziah
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Journal Organic letters
Year 2014
DOI
10.12980/APJTB.4.2014APJTB-2014-0042
URL
http://www.sciencedirect.com/science/article/pii/S2221169115300800
Keywords
seed germination tropical medicinebiology (general)

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