Search Results for : seed germination
Comparative effect of NaCl and CaCl2 on seed germination of Acacia saligna L. and Acacia decurrens Willd
Salinity is one of the environmental factors that has a critical influence on the germination of seeds and plant establishment. Seed germination is the stage which is most susceptible to this abiotic constraint. The objective of this study was the identification of the kinetics of germination in response to salinity stress. Two experiments were separately […]
Seed germination potential, phytochemical analysis and antioxidant activity of two tomato varieties
The present study has carried out to evaluate seed germination potential, phytochemical analysis and antioxidant activity of two tomato varieties viz., Raton and Persimmon.Seed germination experiment has undertaken with an objective to determine how the rate of seed germination can be influenced by various concentrations (10-3M, 10-4M, 10-5M) of plant hormones i.e. NAAand BA.Raton (BA […]
Allelopathic effects of bark, leaf and root exduate of Guaiacum Officinale (Lignum) on seed germination, root length, shoot length, dry weight of Pennisetum Glauccum (Millet)
The allelopathic effect of leaf, root and bark extract of Guaiacum officinale on seed germination of Pennisetum glauccum (millet) were studied by applying three treatments (10, 25 and 50% extracts of each). Maximum effect on germination was observed in 50% leaf extract of Guaiacum officinale, in which only 10% seeds were germinated, compared to bark […]
Allelopathic effects of syrian bean caper (Zygophyllum fabago L.) on seed germination and seedling growth of eastern dodder (Cuscuta monogyna Vahl.)
Eastern dodder (CuscutamonogynaVahl.) is a parasitic weed of woody species. The objective of the research was to study allelopathic effects of above ground parts of Syrian bean caper (Zygophyllumfabago L.) on eastern dodder(CuscutamonogynaVahl.) seed germination and seedling growth. Water extracts from leaf, fruit and stem dry powder in five concentrations (0, 2.5, 5, 7.5 and […]
Seed germination improvement of Satureja khuzistanica and S. rechingeri (Lamiaceae) as valuable endemic medicinal species from Iran
The objective of this study was to enhance seed germination of two valuable and endemic medicinal species, Satureja khuzistanica and S. rechingeri, which commonly have low percentage and rate of germination. For this purpose, a factorial experiment in randomized complete design (RCD) with three replications each consisted of 20 seeds, was performed under laboratory conditions. […]
Response of soil physical properties and onion seed germination to irrigation methods
Mainly, final yield product depends on growth factors such as soil, irrigation and kind of seed. Aggregate collapse and crust formation due to drying prevent germination and reduce the population of vegetation. Greenhouse experiments were conducted to evaluate the effect of irrigation method on physical properties of seedbed and its outcome on the germination and […]
Seed germination and early growth of Jimsonweed as affected by biophysical priming techniques
Seed priming has been reported to enhance growth of plants. To evaluate the effect of some physical seed priming materials (ultrasonic, gamma, beta and laser irradiation, magnetic field and hydro-priming) on seed germination and growth of Jimsonweed a laboratory experiment was conducted at Islamic Azad University of Tabriz branch, using completely randomized design, with three […]
Impact of multi-walled carbon nanotubes on seed germination and seedling growth of Cichorium intybus L.
A medicinal plant was evaluated for the effect of multi-walled carbon nanotubes (CNTs) using germination and seedling growth of Cichorium intybus L. The experimental treatments included four concentrations of multi-walled carbon nanotubes (10, 50, 100 and 200 ppm ) and control without carbon nanotubes. Results indicated that among the Cichorium intybus germination indices, germination percentage, […]
Reproductive biology and seed germination of tropical evergreen tree Canarium strictum Roxb.
Canarium strictum Roxb. (Burseraceae) an evergreen tree was studied for its phenology, flower morphology, pollen viability, stigma receptivity, seed setting and seed germination. This species has got meager population and restricted distributed in the Kolli, Pacchamalai, Karanadamalai and Sirumalai hills of Eastern Ghats of Tamilnadu, India. Though there is enormous number of pollens (946/anther) produced […]
Allelopathic effect of Arta (Calligonum Comosum L, Her) extract on seed germination of arfaj (Rhanterium epapposum Oliv)
This study was conducted to estimate the effects of different concentrations (2.5, 7.5, and 12.5 g/l) of Calligonum comosum (leaves, stem and roots) extracts on the seed of Rhanterium epapposum. Germination parameters (e.g., percentage of germination, germination starting, coefficient of velocity were evaluated. Results showed that the stem and leaves extracts, have negative and significant […]