بررسی تاثیر آب مغناطیسی و سطوح مختلف شوری بر ظهور گیاهچه پنبه رقم ورامین در کاشمر

نوع مقاله : مقاله پژوهشی

نویسندگان

1 استادیار گروه علوم و مهندسی آب، مرکز آموزش عالی کاشمر، کاشمر

2 مدرس و کارشناس آزمایشگاه آب و خاک، مرکز آموزش عالی کاشمر، کاشمر

3 استادیار موسسه تحقیقات پنبه کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، گرگان، ایران

چکیده

به‌منظور بررسی تاثیر میدان مغناطیسی و شوری آب آبیاری با سطوح مختلف بر ظهور گیاهچه گیاه پنبه، آزمایشی بصورت فاکتوریل در قالب بلوک­های کاملاً تصادفی و با سه تکرار در سال زراعی 1395در مرکز آموزش عالی کاشمر انجام شد. در این آزمایش سطوح مختلف شوری آب آبیاری شامل 5/0S1:، 3S2:، 7S3:، 10S4: و 13S5: دسی زیمنس بر متر تحت شرایط مغناطیس (M1) و غیر مغناطیس (M2) در نظر گرفته شد. برای تولید آب مغناطیسی از 6 عدد آهنربای نئودمیوم- آهن-بورن با ابعاد 1×2×4 سانتی متر با قدرت 1500 میلی تسلا استفاده گردید. صفات مورد ارزیابی شامل تعیین درصد و مدت زمان ظهور گیاهچه تحت آبیاری با شرایط مغناطیس و غیر مغناطیس بود. نتایج تحقیق نشان داد که با افزایش شوری تعداد گیاهچه­های  پنبه کاهش یافت. به‌طوریکه کاهش ظهور گیاهچه به میزان 46، 60، 83 و 100 درصد به‌ترتیب مربوط به تیمار با شوری­های 3، 7، 10 و 13 دسی زیمنس بر متر در شرایط غیر مغناطیس و در شرایط شرایط مغناطیس به میزان 21، 46، 36 و 50 درصد بودند. با توجه به نتایج بدست آمده مشخص گردید که بیش از 67 درصد جوانه‌ها  تا روز چهارم پس از ظهور اولین گیاهچه در شرایط مغناطیس حاصل گردید، در حالیکه این روند در شرایط غیر مغناطیس در شوری­های کم تا روز ششم و در شوری­های بالا تا 15 روز پس از ظهور اولین گیاهچه محقق گردید. نتایج حاصل از تجزیه واریانس داده‌ها نشان داد که اثر مغناطیس در صفات مورد بررسی در سطح احتمال 1 و 5 درصد به‌ترتیب برسرعت و درصد ظهور گیاهچه معنی دار بود. بنابراین می­توان نتیجه گرفت که اثر مغناطیس بر افزایش تعداد جوانه­ها و تسریع زمان ظهور گیاهچه در شرایط آبیاری با آب شور مثبت بوده و قابل توصیه می­باشد.

کلیدواژه‌ها

عنوان مقاله [English]

The effect of magnetized water and different salinity levels on seedling emergence of cotton (Varamin cultivar) in Kashmar

نویسندگان [English]

  • Meysam Abedinpour 1
  • Ebrahim Roohani 2
  • Ghorban Ghorbani Nasrabad 3
1 Assistant Prof., Water Engineering Dept., Kashmar Higher Education Institute, Kashmar, Iran
2 Lecturer, Soil and Water lab., Kashmar Higher Education Institute, Kashmar, Iran
3 Assistant Prof., Cotton Research Institute, Agricultural Research, Education and Promotion Organization, Gorgan, Iran
چکیده [English]

In order to investigate the effect of magnetic field and irrigation with different salinity levels on cotton seedling emergence, a study was conducted as factorial experiment in a randomized complete block design with three replications in the Kashmar Higher Education Institute during 2016. In this experiment, different levels of irrigation water salinity were considered i.e.0.5: (S1); 3: (S2); 7: (S3); 10: (S4); and 13: (S5) ds/m as a main plots and magnetic field (M1) and non-magnetic (M2) as sub-plots. Six Neodymium-iron-boron magnets with the power of 1500 mT and dimensions of 4×2×1 cm were used to produce magnetized water. were included Determination of percentage and duration of seedling emergence under irrigation by magnetic and no magnetic were evaluated parameters The results showed that by increasing of salinity, germination of cotton reduced so that the ratio of reduction were as 46, 60, 83 and 100 % for salinities treatments i.e. 3, 7, 10 and 13 ds/m, respectively, under non-magnetic condition and also under magnetic condition were at the rates of 21, 46, 36 and 50 %, respectively. According to the results, it was evident that more than 67 % of the buds were appeared in all salinity levels under magnetic conditions before the fourth day after the appearance of the first seedling, while for non-magnetic conditions were obtained sixth day for low salinity and for high salinity 15day after the appearance of the first seedling. The results showed that magnetic water effect was significant at 1 and 5% on number of seedling and accelerate germination time, respectively. Therefore, it can be conclude that magnetic effect was positive on the number of buds and accelerate germination time under various irrigation water salinities.

کلیدواژه‌ها [English]

  • cotton
  • germination
  • Magnetic water
  • Salinity

مراجع

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