Search Results for : seed germination
Effective of priming techniques in seed germination and seed emergence enhancement in medicinal plant of Satureja macrantha
Medicinal herbs are reserves for natural resources of each country. Iran also are rich of medicinal plant species. More medicinal plants are wild and their seeds have low germination. The experimental was carried out based on factorial (6*2 design in three replication by using of six treatments including: Acid Gibberlic 250( 500, ppm and Potassium […]
Allelopathic effects of weeds extract on seed germination of Trachyspermum copticum L., Foeniculum vulgare and Cuminum cyminum
Seed germination stage is one of the most basic growth stages in medicinal plants that may be adversely affected by the chemicals released from other plants in the soil environment. The present study was performed to investigate the allelopathic effects of weeds, including (Xanthium strumarium, Amaranthus retroflexus and Chenopodium album) as common weeds in medicinal […]
Investigation of nursery treatments on sea buckthorn (Elaeagnus rhamnoides (L.) A. Nelson) seed germination in the field
This study was conducted for the first time in nursery treatment in order to pioneer forest trees of the species Elaeagnus rhamnoides and also to determine the effects of different treatments on seed germination in Iran. This species is resistance for plantation. Seeds originating from Qazvin province were placed in the nursery. Treatments comprised three […]
Allelotoxic activity of Eucalyptus rostrata Schlecht. on seed germination and seedling growth of Chenopodium album L. and Portulaca oleracea L.
Eucalyptus rostrata is known to contain various substances that are allelopathic. The allelopathic effect of leaf (ERLAE) and bark (ERBAE) of Eucalyptus rostrata aqueous extracts was evaluated for their potential uses as control on seed germination and seedling growth of two noxious weeds; Chenopodium album and Portulaca oleracea. The biological activity of the two types […]
Investigation of different priming techniques on seed germination of Papaver species
Seed dormancy is important as an adaptive trait for weeds that help ensure the continuance of weed species in the soil seed bank. This study examined the effects of some priming treatments including hydropriming, gibberellic acid (GA3), potassium nitrate (KNO3), priming duration and light regime on seed dormancy breaking of Papaver rhoeas and P. dubium. […]
Effect of seed position on parental plant on seed germination and seedling growth of common cocklebur (Xanthium strumarium L.)
The aim of this study was to determine the effect of seed position on a parental plant on germination characteristics and early seedling growth of common cocklebur (Xanthium strumarium L.). The laboratory experiment was conducted in laboratory of weed ecology of Faculty of Agriculture, University of Tabriz, Iran in 2012. The common cocklebur seeds were […]
The effect of GA3 on seed germination and early growth of lentil seedlings under salinity stress
Seed germination is the most important sensitive stage to stress, so that early seedling growth and final crop yield can be inhibited by effects of salinity. The present experiment was developed in order to evaluate salinity effects and plant growth regulator (GA3) on seed germination in two lentil genotypes (Kimia and Ilam). Statistical analysis on […]
Investigation of 5-aminolevolinic acid (ALA) effects on seed germination and seedling growth of Silybum marianum under salinity stress
Salinity is a major environmental stress which adversely affects germination and seedling establishment in a wide variety of crops. However, studying of seeds with different plant growth regulators may helpful to alleviate the deleterious effects of salinity and enhance germination and seedling growth in salt stress environment. In present experiment we investigated the effects of […]
Does priming improve dill (Anethum graveolens) seed germination and yield?
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 […]
Allelopathic effect of some essential oils on seed germination of Lathyrus annuus and Vicia villosa
It has been shown that chemicals found in extracts or essential oils of plants have allelopathic effects on seed germination. Laboratory bioassay was laid out in order to study the inhibitory effects of some essential oils on seed germination of two weeds (Lathyrus annuus and Vicia villosa). The treatments included control (distilled water), ethanol 9.6% […]