background and objectives: electric, magnetic and electromagnetic fields can act as stress factors with different effects on biological systems. due to the nutritional and medicinal values, and the increasing electromagnetic radiations, the present study was performed to investigate the effects of the electromagnetic field on the developmental stages and cytotoxic properties of okra. methods: b...

Research efforts around the world have been increasingly devoted to investigating changes in C3 and C4 species' abundance or distribution with global warming, as they provide important insight into carbon fluxes and linked biogeochemical cycles. However, changes in the early life stage (e.g. germination) of C3 and C4 species in response to global warming, particularly with respect to asymmetric...

Seeds of highly medicinal plant,P.santalinuswere subjected to different doses(0, 10, 25, 50, 100, 150, 200, 250 and 300 Gy) of gamma radiation using Cosource and observed for germination, growth and biochemical attributes. Germination percentage was found to be highest at 50 Gy whereas, speed of germination increased up to 100 Gy. A threefold increase in vigor and growth in terms of dry mass wa...

the aim of this study was to investigate the allelopathic effects of eucalyptus camaldulensis on germination and early seedling growth of festuca arundinacea under laboratory condition in order to determine the effect of pretreatments on decreasing the destructive effects of allelopathic compounds. the chemical stimulators used in this study included 3 levels of gibberellic acid, 3 levels of sa...

Separately, it is well-documented that phytochromes (phys), gibberellin (GA) and abscisic acid (ABA) strongly control the seed germination in tomato. However, we hipothesized that phys interact with GA or ABA during this response. Thus, we make an analysis of seed germination of ABA deficient (sit), GA constitutive response (pro), phytochrome deficient (au) mutants as well as, specially, au sit...

As seed dormancy is released within a seed population, both the rate and percentage of germination increase progressively with increasing dose of a dormancy-breaking treatment or condition. Population-based models can account for this behaviour on the basis of shifting response thresholds as dormancy is alleviated. In particular, hydrothermal time analysis of germination sensitivity to water po...