اثر آب شور مغناطیسی ‌شده بر عملکرد و اجزای عملکرد توت‌فرنگی (fragaria ananassa cv. silva)

هدف از این پژوهش تاثیر تنش شوری تحت تاثیر میدان مغناطیسی بر عملکرد و اجزای عملکرد گیاه توت‌فرنگی می‌باشد. آزمایش به‌صورت فاکتوریل در قالب طرح بلوک های کامل تصادفی با سه تکرار در سال های 1400 و 1401 در شهرستان نکا انجام شد. تیمار شاهد شامل آبیاری کامل در تمام مراحل رشد گیاه و با آب معمولی (غیرمغناطیسی) بود. تیمارها شامل نوع آب آبیاری در دو سطح (آب غیرمغناطیسی (w1) و آب مغناطیسی (w2)) و شوری آب در سه سطح (0/86 دسی‌زیمنس بر متر (s1)، 20 میلی‌مولار کلریدسدیم (s2) و 40 میلی مولار کلریدسدیم (s3) بود. نتایج تجزیه واریانس نشان داد که اثر نوع آب آبیاری و سطوح مختلف شوری آب بر طول، قطر، تعداد میوه در هر بوته، وزن میوه، زیست‌توده و عملکرد بوته در سطح احتمال یک درصد معنی دار شد. به طور متوسط طی دو سال کشت توت‌فرنگی با اعمال میدان مغناطیسی، طول، قطر، تعداد میوه در هر بوته، وزن میوه، زیست‌توده و عملکرد بوته به ترتیب 9/76، 14/14، 23/05، 27/6، 27/08 و 28/36 درصد افزایش نشان داد. با افزایش 20 و 40 میلی‌مولار کلریدسدیم، خصوصیات فیزیکی میوه توت‌فرنگی و عملکرد کاهش یافت. بیشترین کاهش مربوط به تعداد میوه در هر بوته در سطح شوری 40 میلی‌مولار کلریدسدیم بود که نسبت به تیمار شاهد 56/69 درصد کاهش یافت. نتیجه نهایی این پژوهش نشان داد که با استفاده از فن آوری آب مغناطیسی می توان از سطوح کم شوری استفاده نمود و مقدار عملکرد توت‌فرنگی را بهبود بخشید.

the effect of magnetized saline water on yield and yield components of strawberry (fragaria ananassa cv. silva)

introductionconsidering the value of water in agriculture and the limitation of this important and vital resource and the existence of intermittent droughts in the country, saving in consumption and optimal use of available water seems necessary. today, utilizing saltwater is considered one of the practical and effective approaches to minimize water consumption while achieving acceptable economic performance. given the scarcity of freshwater sources, the utilization of unconventional water for strawberry cultivation holds significant economic importance. through the application of innovative technologies, such as magnetic technology, the modification of these water sources can lead to increased quantitative and qualitative yields of agricultural products. salinity stress, which alters the water and nutrient absorption patterns, directly impacts the plant’s yield in terms of both quantity and quality. strawberry is an important commercial product, and the quantitative and qualitative increase of its yield is emphasized from different aspects. the purpose of this research is to the effect of salinity stress under the influence of a magnetic field on the yield and yield components of the strawberry plant.materials and methodsthe purpose of this research was to investigate the effect of salinity stress under the influence of magnetic fields on the yield and yield components of strawberry plants. the factorial experiment was conducted in the form of a randomized complete block design with three replications in 2021 and 2022 in neka city. the control treatment included full irrigation in all stages of plant growth with normal water (non-magnetic). the treatments include the type of irrigation water at two levels (non-magnetic water (w1) and magnetic water (w2)), and water salinity was at three levels (0.86 ds/m (s1), 20 mm sodium chloride (s2), and 40 mm sodium chloride (s3). the strawberry plant of the silva cultivar was cultivated in 3 x 4-meter plots with a row spacing of 40 cm and a between the spacing of 40 cm. magnetization of irrigation water was created by passing water through a permanent magnet with a magnetic field intensity of 0.3 tesla. the salt used for salinity stress was laboratory sodium chloride. the used irrigation method was drip (tape), and the amount of irrigation water and irrigation cycle was done according to the needs of the plant. soil moisture monitoring was used to calculate the amount of applied water.results and discussionthe results of analysis of variance showed that the effect of the irrigation water type and different levels of water salinity on the length, diameter, number of fruits per plant, fruit weight, biomass and plant yield was significant at the 1% probability level. the effect of water salinity on the number of fruits per plant was significant at the 1% probability level and on the fruit length and fruit diameter at the 5% probability level. the interaction effect of irrigation water type and water salinity was also significant at the probability level of 1%. on average, during two years of strawberry cultivation with the application of a magnetic field, the length, diameter, number of fruits per plant, fruit weight, biomass, and plant yield were increased by 9.76, 14.14, 23.05, 27.60, 27.08, and 28.36% respectively. the introduction of 20 and 40 mm sodium chloride resulted in a decrease in the physical characteristics of strawberry fruit and overall yield. the most significant reduction was observed in the number of fruits per plant at the salinity level of 40 mm sodium chloride, exhibiting a 56.69% decrease compared to the control treatment.