Search Results for : seed germination
Differential allelopathic effect of nine Haplophyllum tuberculatum growth forms through germination bioassay
The main objective of the present study was to analyze and discriminate among nine growth forms (GF) of Haplophyllum tuberculatum collected from six natural sites along the Mediterranean coastal desert of Egypt byapplying the phenomenon of allelopathy as a chemical marker. H. tuberculatum aqueous extracts (HTAE) were tested on germination efficiency and growth parameters of […]
Effects of allelochemical extracts from medicinal plants on physiological and biochemical mechanisms of maize (Zea mays L.) seedlings
Aqueous extract of Ricinus communis and Lantana camara contains substances that have allelopathic potential on maize (Zea mays L.). The present study showed that different concentrations of the water soluble leaf extracts of R. communis and L. camara inhibit the germination and growth of maize. These extracts also affect activity of some enzymes. Leaf aqueous […]
Seed priming affected physiology and grain yield of chickpea under salt stress
In order to study the effect of priming and salinity on seed germination, physiological characteristics and grain yield of chickpea, an experiment was carried out under hydroponic condition. Results showed that germination percentage and rate significantly reduced under salt stress. KNO3 was proper trait than that of hydro-priming to improving germination rate. Leaf area index […]
Changes in seed vigour of ragon’s head (Lallemantia iberica Fish. et Mey.) under irrigation and plant density treatments
A field experiment was conducted in 2012 to investigate the effects of different irrigation treatments and plant density on seed vigour of Dragon’s head (Lallemantia iberica Fish. et Mey.). The experiment was arranged as split plot based on randomized complete block design with four replications. Irrigation treatments (I1, I2, I3, I4 and I5: irrigation after […]
Physiological impact of sodium azide on Helianthus annus seedlings
The present study was carried out to demonstrate the effect of sodium azide on Helianthus annuus var.“Giza 53” at the green house of Botany Department, Faculty of Science, Tanta University, Egypt. Seeds were soaked in different concentrations of sodium azide (0.5, 1.0 and 2.0 mM) for different time intervals (30, 60, 90, 120 and 150 […]
Enrichment of marigold (Calendula officinalis) seeds influences seedling vigor and essential oil yield in flowers
Most of soils in Iran are deficient in micro-elements. Enrichment of seeds is found to be as suitable method for overcoming micronutrient deficiencies. Marigold is a herbal medicinal plant. In order to study evaluate of seed enrichment by some of micro-nutrients on seedling establishment and yield of marigold two laboratory and field experiments were carried […]
Phytotoxic potential of Calotropis procera against germination behavior and morphological growth performance of lentil (Lens culinaris)
This study was carried out to assess the allelopathic potential of Calotropis procera against lentil. Four different concentrations of Calotropis procera leaf extracts (100%/, 75%, 50% and 25% concentrated) were used to irrigate pots containing lentil seeds. Allelopathic effects of C. procera on lentil crop were gauged using different germination indices and physical growth parameters […]
Contemporary impact of fly ash with soil and growth hormone on germination status of Peanut (Arachis hypogaea L.)
The work represents the effect of fly ash in germination of Arachis hypogaea L. with different treatment with growth hormone and soil. In the present study, pot experiment has conducted by using different combinations of soil, fly ash, Sodium, Phosphorus, Potassium, Indole Acetic Acid and Gibbrellic Acid NPK, IAA and GA for estimation of plant […]
Propagation of Pentaclethra macrophylla Benth (Fabaceae) through seed and rooting of leafy stem cuttings
We assessed a number of factors controlling seed germination and rooting success of leafy stem cuttings of a high priority fruit (food and medicine) tree species from West and Central Africa, i.e. Pentaclethra macrophylla Benth (Fabaceae). In the case of seed germination, we tested three substrates (soil, sand, and a mixture of soil + sand […]
Allelopathic effects of some medicinal plants on the germination and growth of Chenopodium album L.
This study was conducted at the Laboratory of Medicinal Plants, Payamenoor University of west Azerbaijan-Nagadeh, Iran, in 2012. The water extract was prepared by soaking 15, 30, 45 and 60 gram of plant materials of Moldavian balm (Dracocephalum moldavica L), Lemon balm (Melissa officinalis L.), Cumin (Cuminum cyminum) and Black cumin (Nigella sativa L.) in […]