نوع مقاله : کوتاه پژوهشی
نویسندگان
1 پژوهشکده خرما و میوههای گرمسیری، مؤسسه تحقیقات علوم باغبانی، سازمان تحقیقات، آموزش و ترویج کشاورزی، اهواز، ایران
2 گروه علوم باغبانی، دانشکده کشاورزی و منابع طبیعی، دانشگاه خلیج فارس، بوشهر، ایران
چکیده
این پژوهش بهمنظور بررسی تأثیر محلولپاشی کود سیلیسیم (سیتام پودری، 70 درصد SiO2) بر برخی صفات کیفی و غلظت عناصر غذایی میوه خرما رقم برحی در شرایط شوری بالای خاک به صورت طرح بلوک های کامل تصادفی با 3 تکرار انجام شد. تیمارهای محلولپاشی سیلیسیم در هفت سطح شامل عدم محلولپاشی (T1)، محلولپاشی با غلظت 1 در هزار دو مرحله (T2)، محلولپاشی با غلظت 1 در هزار سه مرحله (T3)، محلولپاشی با غلظت 2 در هزار دو مرحله (T4)، محلولپاشی با غلظت 2 در هزار سه مرحله (T5)، محلولپاشی با غلظت 3 درهزار دو مرحله (T6) و محلولپاشی با غلظت 3 در هزار سه مرحله (T7) اعمال شدند. نتایج نشان داد که با کاربرد کود سیلیسیم مواد جامد محلول میوه و pH آب میوه بهترتیب افزایش و کاهش معنی دار داشته است. اسیدیته میوه و قند کل تحت تأثیر تیمارهای آزمایشی قرار نگرفتند و اختلاف معنی دار نداشتند. کاربرد سیلیسیم سبب افزایش معنی دار غلظت پتاسیم، کلسیم، آهن و روی در میوه خرما شد، اما بر غلظت فسفر میوه اثر معنیدار نداشت. در مجموع، محلولپاشی کود سیلیسیم توانست اثرات منفی ناشی از تنش شوری بر ویژگیهای کیفی و غلظت عناصر غذایی میوه خرما را در شرایط تنش شوری بهبود بخشد.
کلیدواژهها
موضوعات
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