گیاهان هنگام جراحت
از طریق مواد شیمیایی که از ریشه ی آن ها متصاعد میشود؛درخواست کمک می
وقتی که گیاهی مورد
هجوم عوامل بیماری زا مانند باکتری های مضر قرار میگیرند برگ های آن به ریشه پیغام
میفرستند و در درخواست کمک میکنند تا ریشه اسیدی ترشح کند تا به کمک آن باکتری های
سفید به کار گرفته شوند.
هارس بیس؛دانش یار
علوم خاک وگیاه از دانشگاه دلاور گفت:گیاهان از آن چیزی که تصور می شود عاقل
ترند!مردم تصور می کنند که ریشه ی گیاهان در برابر حملات عوامل بیماری زا واکنشی
ندارند؛در حالی که تحقیقات جدید نشان میدهد که گیاهان راه هایی برای درخواست کمک از
محیط اطراف دارند.
گیاهان در این مواقع
امواجی با طول موج بلند از برگ به ریشه ارسال میکنند و ریشه با تولید مواد آلی به
این درخواست کمک پاسخ میدهد.
شنبه 1 تیر 1392 09:11 ب.ظ
دیدگاه ها ()
چهارشنبه 22 فروردین 1397 05:45 ق.ظ
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چهارشنبه 22 فروردین 1397 01:15 ق.ظ
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سه شنبه 21 فروردین 1397 08:36 ب.ظ
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شنبه 14 بهمن 1396 09:14 ب.ظ
ممنون مطلب خوبی بود
شنبه 1 مهر 1396 08:17 ب.ظ
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یکشنبه 15 مرداد 1396 10:38 ب.ظ
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شنبه 14 مرداد 1396 03:18 ق.ظ
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جمعه 6 مرداد 1396 08:09 ق.ظ
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پنجشنبه 29 تیر 1396 07:25 ب.ظ
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چهارشنبه 28 تیر 1396 09:48 ب.ظ
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چهارشنبه 28 تیر 1396 09:18 ب.ظ
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چهارشنبه 28 تیر 1396 01:35 ب.ظ
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چهارشنبه 28 تیر 1396 12:09 ب.ظ
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جمعه 23 تیر 1396 03:40 ب.ظ
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جمعه 16 تیر 1396 06:37 ب.ظ
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سه شنبه 6 تیر 1396 11:32 ق.ظ
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پنجشنبه 1 تیر 1396 07:48 ب.ظ
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جمعه 26 خرداد 1396 08:27 ب.ظ
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یکشنبه 21 خرداد 1396 03:43 ب.ظ
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یکشنبه 21 خرداد 1396 11:34 ق.ظ
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یکشنبه 21 خرداد 1396 01:58 ق.ظ
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شنبه 13 خرداد 1396 06:59 ق.ظ
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یکشنبه 31 اردیبهشت 1396 04:40 ب.ظ
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جمعه 22 اردیبهشت 1396 09:41 ق.ظ
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سه شنبه 22 فروردین 1396 08:22 ق.ظ
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