Does priming improve dill (Anethum graveolens) seed germination and yield?

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Research Paper 01/07/2013
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Does priming improve dill (Anethum graveolens) seed germination and yield?

Hossein Khoshvaghti, Marziyeh Hoseini, Sahar Baser-Kouchehbagh
Int. J. Biosci.3( 7), 126-131, July 2013.
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This study examines the effects of seed priming on germination and yield on dill, in the laboratory experiment and pot study. The method used in the laboratory and pot is CRD (Completely Randomized Design) with three replications. The treatments are GA31 with dosage of 500p.p.m, hydro-priming (HP) with 24 hours duration in room temperature, KNO32 and control. Then in laboratory with use of special paper and pure water the seeds were cultured in petri-dishes and were putt in germinator with 19°c temperature for 8 days and were counted daily. Some parts of primed seeds were stored in normal condition for 6 months and were cultured in laboratory condition. All the primed seeds were farmed in pots. Three months later the plants were harvested in first blooming level and dry weight and essential oil percentage were measured. The results of laboratory study showed that the influence of various treatments on germination percentage (GP) and germination rate (GR) were significant. KNO3 showed the highest positive effect on germination percentage (84.33%). Plant height (PH) and main branch (MB) number in KNO3 treatment in comparision with others were the highest. The effect of different treatments on essential oil percentage (EOP) was significant. KNO3 with (3.06%) and GA3 with (2.93%) had the most positive effect on essential oil percentage. The effect of different treatments on seedling weight (SW), seedling length (SL), dry weight (DW) and storage seed germination percentage (SGP) were not significant.


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