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Tatari M.,Islamic Azad University at Shirvan | Hosseini A.,Iranian Academic Center for Education | Ahmadi M.,Dryland Research Station of North Khorasan | Alikamar R.A.,Dryland Research Station of North Khorasan
Acta Horticulturae | Year: 2010

Large amounts of saffron petals are disposed off every year while using them as an organic source can open a new approach on reusing them. In order to investigate the stimulatory or inhibitory effects of saffron's petals on the emergence of wheat, an experiment was conducted on the basis of a complete randomized design with four replications in 2008 in the Dryland Research Station of North Khorasan. 5% concentration of saffron petals' water extract (50 grams oven dried petals in 1000 ml water) was used to prepare 5 levels of treatment (0%, 25%, 50%, 75% and 100%). These treatments were used to irrigate wheat seeds (20 ml each day), which were planted in plastic pots and were kept at 25°C in a germinator. Seedling height increased in 25% treatment significantly. Different concentrations had significant effects on seedling weight and the best result was obtained from the 25% treatment. The lowest height and also the lowest weight were observed in the 100% treatment which can be related to the suppressive effect of high concentration of saffron petals extract. On the other hand, because of the better growth rate obtained from the 25% treatment compared with the 0% treatment, it seems that a low concentration of saffron petals water extract promoted wheat seedling growth.


Ahmadi M.,Dryland Research Station of North Khorasan | Abbasi Alikamar R.,Dryland Research Station of North Khorasan | Hosseini A.,Iranian Academic Center for Education | Tatari M.,Islamic Azad University at Shirvan
Acta Horticulturae | Year: 2010

In order to investigate the effect of saffron water extract on rye (Secale cereale L.) seedling growth, an experiment was carried out in 2008 in the Dryland Research Station of North Khorasan. Rye seeds were planted in plastic pots and irrigated by 5 levels of treatment (0%, 25%, 50%, 75% and 100%) that was made from 5% concentration of saffron petals water extract. The experiment was conducted on the basis of a complete randomized design with four replications. The pots were kept at 25°C in a germinator and the seedlings height was recorded daily. Results showed that the highest seedlings were obtained from 25% level of concentration which had no significant difference with control (0% level). A high concentration level (100%) had significant effects on seedling height and the shortest seedlings were observed in this treatment. The highest and lowest weight of seedlings was observed in 25% and 100% level respectively. The growth rate graphs (basis of daily records) confirmed the suppressive effects of the high concentration level (100%) especially in the last days of the experiment. It seems that the low concentrations of saffron petals water extract promote and the high concentration inhibits the growth of rye seedlings.

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