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**Publisher's Note:** MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. **Cucurbita pepo** L.) is a member of the _Cucurbitacae_ family. It is cultivated in many parts of the world. It is nutritious and offers a range of health and beauty benefits, for instance due to its content of carotenoids which are known for their anti-cancer and anti-oxidative qualities [1, 2, 3]. Cucurbita seeds contain approximately 27% protein and 54% fat, which makes them a valuable source of nutrients for both humans and animals [4, 5]. They are also rich in vitamins, mineral salts, and pectin [6, 7]. The edible parts of Cucurbita include its: pulp, seeds, leaves, and flowers [1]. It finds many culinary applications, particularly as an ingredient of soups, salads, sauces, cakes and desserts [8]. A very important yielding factor is the adequate preparation of seed lot, whose aim is to increase the germination capacity of seeds and then improve the vigor of seedlings [9]. In recent years, the intensification of crop production in farm practices began to actively introduce electrophysical methods of affecting plants and seeds of cereals, vegetables, and legumes [10]. Pre-sowing laser and magnetic bio-stimulation of seeds beneficial effect on germination, seedling growth, and yield have attracted the attention agriculturists [11; 12]. A lot of studies which have been conducted so far showed a positive influence of a pre-sowing treatment of seeds with physical stimulants (laser light, magnetic and electric fields, gamma radiation, etc.) on the stimulation of germination, initial development and yielding of selected cereals [11; 12; 13; 14; 15; 16]. Reports available in literature also mention increased content of photosynthetic pigments [17; 18; 19; 20; 21] and increased protein concentration [17; 20] in crops and vegetables grown from seeds subjected to electromagnetic stimulation prior to sowing. Laser activation of plants results in an increase of their bioenergetic potential, leading to higher activation at fitchrome, fithohormone and fermentative systems, as a stimulation of their biochemical and physiological processes [21]. A number of the most recent studies have also turned their attention to nanotechnological techniques offering many potential applications in scientific, technological, and agricultural contexts [22; 23; 24; 25] due to their antibacterial and antifungal benefits [26]. Nanoparticles are now being used in the manufacture household goods, food packaging, feed production, as well as textile and cosmetic products [27; 28; 29]. The renewed interest in nanoparticles and nanomaterials stems from their unique and improved qualities related to their size, distribution, and morphological structure. A growing number of researchers are looking into their potential due to the observed increasing microbiological resistance to metal ions, antibiotics, and development of immune bacterial strains [30]. In recent years, numerous studies in the field of agriculture have considered the use of silver nanoparticles (AgNPs) as possible pre-sowing treatment or nano-fertil. The researchers considered the effects of silver nano-particles on the height of the developing plant [31], amount of the harvestable biomass [32; 33], germination capacity [34; 35], seed harvest, and fruit quality [33; 34; 35; 36]. The studied uses of silver nano-particles in plant production have not explicitly confirmed the intensification or inhibition of plant growth as a result of the same; instead, it has been observed that the dosage of AgNP to considerable extent determines its harmful or beneficial effects [37; 38]. The potential applicability of silver nanoparticles (AgNPs) in agriculture remains a matter of some debate [39; 40]. The influence of AgNPs seems to depend on the species and age of the given plant, the size and concentrations of the nanoparticles themselves, as well as the experimental conditions, including: temperature and duration as well as the method of applying the preparation.