النبات يدمع

القائمة الرئيسية

الصفحات

تنظيم المنزل

النبات يدمع

02 يونيو 2012

...

النبات يدمع بظاهرة الادماع (Guttation)

القطرات تتواجد من الليل وتبدء فى الاختفاء فى الصباح ما هذا؟
في عالم النبات توجد قنوات دمعية ,ليست موجودة فى كل انواع النبات ولكن تتميز بها نباتات (aroid) التى منها البوتس ..الوكاسيا..القشطة... فيلودوندرون ..وغيرها وبعض الانواع الاخرى..

وميكانيكية ذلك بسيطة.

فهىتحتوى على أجهزة خاصة بها تسمى بالأجهزة الدمعية (Hydathode)

تفتح إلى الخارج بالثغر المائي (Water stoma)

وقد ثبت أن نبات القلقاس الهندي Colocacia nympaefolia عريض الأوراق

يدمع في الليلة مئة سنتمتر مكعب من الدموع المحملة بالأملاح والأحماض الأمينية وغيرها

وخاصيّة الادماع : هي عمليّة فقدان النبات للماء على شكل قطرات ..

ويحدث ذلك عن طريق فتحات خاصة تسمى فتحات الادماع ..

وتوجد فتحات الإدماع على حواف الأوراق في نهاية العرق الوسطي وتفرعاته ..

وهذه العملية تحدث أثناء الليل .. :

لأن الثغور في هذا الوقت تكون مغلقة .وبالتالي يستمر تراكم الأملاح في الجذر

وذلك يزيد من الضغط الجذري

تنظيم المنزل

أخر المواضيع من قسم : تنظيم المنزل

window['__wavt'] = 'AOuZoY4FBvqgCFSAI8LE0ElXZzdzdyvViw:1713505650243';_WidgetManager._Init('//www.blogger.com/rearrange?blogID\x3d1097148858613314867','//kgjody.blogspot.com/2010/08/blog-post_2921.html','1097148858613314867'); _WidgetManager._SetDataContext([{'name': 'blog', 'data': {'blogId': '1097148858613314867', 'title': '\u062c\u0648\u062f\u0649 \u0627\u0644\u0627\u0631\u0648\u0628\u0629', 'url': 'https://kgjody.blogspot.com/2010/08/blog-post_2921.html', 'canonicalUrl': 'https://kgjody.blogspot.com/2010/08/blog-post_2921.html', 'homepageUrl': 'https://kgjody.blogspot.com/', 'searchUrl': 'https://kgjody.blogspot.com/search', 'canonicalHomepageUrl': 'https://kgjody.blogspot.com/', 'blogspotFaviconUrl': 'https://kgjody.blogspot.com/favicon.ico', 'bloggerUrl': 'https://www.blogger.com', 'hasCustomDomain': false, 'httpsEnabled': true, 'enabledCommentProfileImages': true, 'gPlusViewType': 'FILTERED_POSTMOD', 'adultContent': false, 'analyticsAccountNumber': 'UA-107940556-1', 'encoding': 'UTF-8', 'locale': 'ar', 'localeUnderscoreDelimited': 'ar', 'languageDirection': 'rtl', 'isPrivate': false, 'isMobile': false, 'isMobileRequest': false, 'mobileClass': '', 'isPrivateBlog': false, 'isDynamicViewsAvailable': true, 'feedLinks': '\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22\u062c\u0648\u062f\u0649 \u0627\u0644\u0627\u0631\u0648\u0628\u0629 - Atom\x22 href\x3d\x22https://kgjody.blogspot.com/feeds/posts/default\x22 /\x3e\n\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/rss+xml\x22 title\x3d\x22\u062c\u0648\u062f\u0649 \u0627\u0644\u0627\u0631\u0648\u0628\u0629 - RSS\x22 href\x3d\x22https://kgjody.blogspot.com/feeds/posts/default?alt\x3drss\x22 /\x3e\n\x3clink rel\x3d\x22service.post\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22\u062c\u0648\u062f\u0649 \u0627\u0644\u0627\u0631\u0648\u0628\u0629 - Atom\x22 href\x3d\x22https://www.blogger.com/feeds/1097148858613314867/posts/default\x22 /\x3e\n\n\x3clink rel\x3d\x22alternate\x22 type\x3d\x22application/atom+xml\x22 title\x3d\x22\u062c\u0648\u062f\u0649 \u0627\u0644\u0627\u0631\u0648\u0628\u0629 - Atom\x22 href\x3d\x22https://kgjody.blogspot.com/feeds/261583426932410445/comments/default\x22 /\x3e\n', 'meTag': '', 'adsenseHostId': 'ca-host-pub-1556223355139109', 'adsenseHasAds': false, 'adsenseAutoAds': false, 'boqCommentIframeForm': true, 'loginRedirectParam': '', 'view': '', 'dynamicViewsCommentsSrc': '//www.blogblog.com/dynamicviews/4224c15c4e7c9321/js/comments.js', 'dynamicViewsScriptSrc': '//www.blogblog.com/dynamicviews/d86c8c5eadffdf93', 'plusOneApiSrc': 'https://apis.google.com/js/platform.js', 'disableGComments': true, 'interstitialAccepted': false, 'sharing': {'platforms': [{'name': '\u0627\u0644\u062d\u0635\u0648\u0644 \u0639\u0644\u0649 \u0627\u0644\u0631\u0627\u0628\u0637', 'key': 'link', 'shareMessage': '\u0627\u0644\u062d\u0635\u0648\u0644 \u0639\u0644\u0649 \u0627\u0644\u0631\u0627\u0628\u0637', 'target': ''}, {'name': 'Facebook', 'key': 'facebook', 'shareMessage': '\u0645\u0634\u0627\u0631\u0643\u0629 \u0625\u0644\u0649 Facebook', 'target': 'facebook'}, {'name': '\u0643\u062a\u0627\u0628\u0629 \u0645\u062f\u0648\u0646\u0629 \u062d\u0648\u0644 \u0647\u0630\u0647 \u0627\u0644\u0645\u0634\u0627\u0631\u0643\u0629', 'key': 'blogThis', 'shareMessage': '\u0643\u062a\u0627\u0628\u0629 \u0645\u062f\u0648\u0646\u0629 \u062d\u0648\u0644 \u0647\u0630\u0647 \u0627\u0644\u0645\u0634\u0627\u0631\u0643\u0629', 'target': 'blog'}, {'name': 'Twitter', 'key': 'twitter', 'shareMessage': '\u0645\u0634\u0627\u0631\u0643\u0629 \u0625\u0644\u0649 Twitter', 'target': 'twitter'}, {'name': 'Pinterest', 'key': 'pinterest', 'shareMessage': '\u0645\u0634\u0627\u0631\u0643\u0629 \u0625\u0644\u0649 Pinterest', 'target': 'pinterest'}, {'name': '\u0628\u0631\u064a\u062f \u0625\u0644\u0643\u062a\u0631\u0648\u0646\u064a', 'key': 'email', 'shareMessage': '\u0628\u0631\u064a\u062f \u0625\u0644\u0643\u062a\u0631\u0648\u0646\u064a', 'target': 'email'}], 'disableGooglePlus': true, 'googlePlusShareButtonWidth': 0, 'googlePlusBootstrap': '\x3cscript type\x3d\x22text/javascript\x22\x3ewindow.___gcfg \x3d {\x27lang\x27: \x27ar\x27};\x3c/script\x3e'}, 'hasCustomJumpLinkMessage': false, 'jumpLinkMessage': '\u0642\u0631\u0627\u0621\u0629 \u0627\u0644\u0645\u0632\u064a\u062f', 'pageType': 'item', 'postId': '261583426932410445', 'postImageThumbnailUrl': 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhuuW_bmYKQb7ZainksyTWbuyjXkLwrq4FYSTML1ptzkG1V1BZi5L7HczMUNjEQYUUiLDH1ovUwc_ioISH5QxS4WnJyMH1f-_p_JKt3ljHwZHLsFjhFyOzBbYPZkW6M5_BLKWm6XnQH/s72-c/800px-guttation_ne.jpg', 'postImageUrl': 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhuuW_bmYKQb7ZainksyTWbuyjXkLwrq4FYSTML1ptzkG1V1BZi5L7HczMUNjEQYUUiLDH1ovUwc_ioISH5QxS4WnJyMH1f-_p_JKt3ljHwZHLsFjhFyOzBbYPZkW6M5_BLKWm6XnQH/s320/800px-guttation_ne.jpg', 'pageName': '\u0627\u0644\u0646\u0628\u0627\u062a \u064a\u062f\u0645\u0639', 'pageTitle': '\u062c\u0648\u062f\u0649 \u0627\u0644\u0627\u0631\u0648\u0628\u0629: \u0627\u0644\u0646\u0628\u0627\u062a \u064a\u062f\u0645\u0639', 'metaDescription': ''}}, {'name': 'features', 'data': {}}, {'name': 'messages', 'data': {'edit': '\u062a\u0639\u062f\u064a\u0644', 'linkCopiedToClipboard': '\u062a\u0645 \u0646\u0633\u062e \u0627\u0644\u0631\u0627\u0628\u0637 \u0625\u0644\u0649 \u0627\u0644\u062d\u0627\u0641\u0638\u0629', 'ok': '\u062d\u0633\u0646\u064b\u0627', 'postLink': '\u0631\u0627\u0628\u0637 \u0627\u0644\u0645\u0634\u0627\u0631\u0643\u0629'}}, {'name': 'template', 'data': {'name': 'custom', 'localizedName': '\u0645\u062e\u0635\u0635', 'isResponsive': true, 'isAlternateRendering': false, 'isCustom': true}}, {'name': 'view', 'data': {'classic': {'name': 'classic', 'url': '?view\x3dclassic'}, 'flipcard': {'name': 'flipcard', 'url': '?view\x3dflipcard'}, 'magazine': {'name': 'magazine', 'url': '?view\x3dmagazine'}, 'mosaic': {'name': 'mosaic', 'url': '?view\x3dmosaic'}, 'sidebar': {'name': 'sidebar', 'url': '?view\x3dsidebar'}, 'snapshot': {'name': 'snapshot', 'url': '?view\x3dsnapshot'}, 'timeslide': {'name': 'timeslide', 'url': '?view\x3dtimeslide'}, 'isMobile': false, 'title': '\u0627\u0644\u0646\u0628\u0627\u062a \u064a\u062f\u0645\u0639', 'description': '\u0645\u062f\u0648\u0646\u0629 \u0646\u0633\u0627\u0626\u064a\u0629 \u0645\u0646\u0648\u0639\u0647 \u062a\u0647\u062a\u0645 \u0628\u0643\u0644 \u0645\u0627 \u064a\u0634\u063a\u0644 \u0627\u0644\u0645\u0631\u0623\u0629 \u0627\u0644\u0639\u0631\u0628\u064a\u0629', 'featuredImage': 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhuuW_bmYKQb7ZainksyTWbuyjXkLwrq4FYSTML1ptzkG1V1BZi5L7HczMUNjEQYUUiLDH1ovUwc_ioISH5QxS4WnJyMH1f-_p_JKt3ljHwZHLsFjhFyOzBbYPZkW6M5_BLKWm6XnQH/s320/800px-guttation_ne.jpg', 'url': 'https://kgjody.blogspot.com/2010/08/blog-post_2921.html', 'type': 'item', 'isSingleItem': true, 'isMultipleItems': false, 'isError': false, 'isPage': false, 'isPost': true, 'isHomepage': false, 'isArchive': false, 'isLabelSearch': false, 'postId': 261583426932410445}}, {'name': 'widgets', 'data': [{'title': '\u0627\u0644\u0635\u0641\u062d\u0627\u062a', 'type': 'PageList', 'sectionId': 'pages', 'id': 'PageList1'}, {'title': '\u062c\u0648\u062f\u0649 \u0627\u0644\u0627\u0631\u0648\u0628\u0629 (\u0631\u0623\u0633 \u0627\u0644\u0635\u0641\u062d\u0629)', 'type': 'Header', 'sectionId': 'logo', 'id': 'Header1'}, {'title': '\u0631\u0633\u0627\u0626\u0644 \u0627\u0644\u0645\u062f\u0648\u0646\u0629 \u0627\u0644\u0625\u0644\u0643\u062a\u0631\u0648\u0646\u064a\u0629', 'type': 'Blog', 'sectionId': 'Tempnec', 'id': 'Blog1', 'posts': [{'id': '261583426932410445', 'title': '\u0627\u0644\u0646\u0628\u0627\u062a \u064a\u062f\u0645\u0639', 'featuredImage': 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhuuW_bmYKQb7ZainksyTWbuyjXkLwrq4FYSTML1ptzkG1V1BZi5L7HczMUNjEQYUUiLDH1ovUwc_ioISH5QxS4WnJyMH1f-_p_JKt3ljHwZHLsFjhFyOzBbYPZkW6M5_BLKWm6XnQH/s320/800px-guttation_ne.jpg', 'showInlineAds': false}], 'headerByline': {'regionName': 'header1', 'items': [{'name': 'author', 'label': '\u0643\u062a\u0628:'}, {'name': 'timestamp', 'label': '\u0622\u062e\u0631 \u062a\u062d\u062f\u064a\u062b:'}, {'name': 'share', 'label': ''}]}, 'footerBylines': [{'regionName': 'footer1', 'items': [{'name': 'comments', 'label': 'comments'}, {'name': 'icons', 'label': ''}]}, {'regionName': 'footer2', 'items': [{'name': 'labels', 'label': '\u0627\u0644\u0642\u0633\u0645:'}]}], 'allBylineItems': [{'name': 'author', 'label': '\u0643\u062a\u0628:'}, {'name': 'timestamp', 'label': '\u0622\u062e\u0631 \u062a\u062d\u062f\u064a\u062b:'}, {'name': 'share', 'label': ''}, {'name': 'comments', 'label': 'comments'}, {'name': 'icons', 'label': ''}, {'name': 'labels', 'label': '\u0627\u0644\u0642\u0633\u0645:'}]}, {'title': '\u0627\u0639\u0644\u0627\u0646 \u0628\u0639\u062f \u0627\u0648\u0644 \u0641\u0642\u0631\u0629', 'type': 'HTML', 'sectionId': 'PostAds', 'id': 'HTML205'}, {'title': '\u0627\u0639\u0644\u0627\u0646 \u0628\u0639\u062f \u062b\u0627\u0646\u064a \u0641\u0642\u0631\u0629', 'type': 'HTML', 'sectionId': 'PostAds', 'id': 'HTML206'}, {'title': '\u0627\u0639\u0644\u0627\u0646 \u0628\u0639\u062f \u062b\u0627\u0644\u062b \u0641\u0642\u0631\u0629', 'type': 'HTML', 'sectionId': 'PostAds', 'id': 'HTML207'}]}]); _WidgetManager._RegisterWidget('_PageListView', new _WidgetInfo('PageList1', 'pages', document.getElementById('PageList1'), {'title': '\u0627\u0644\u0635\u0641\u062d\u0627\u062a', 'links': [{'isCurrentPage': false, 'href': 'https://kgjody.blogspot.com/', 'title': '\u0627\u0644\u0635\u0641\u062d\u0629 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629'}], 'mobile': false, 'showPlaceholder': true, 'hasCurrentPage': false}, 'displayModeFull')); _WidgetManager._RegisterWidget('_HeaderView', new _WidgetInfo('Header1', 'logo', document.getElementById('Header1'), {}, 'displayModeFull')); _WidgetManager._RegisterWidget('_BlogView', new _WidgetInfo('Blog1', 'Tempnec', document.getElementById('Blog1'), {'cmtInteractionsEnabled': false, 'lightboxEnabled': true, 'lightboxModuleUrl': 'https://www.blogger.com/static/v1/jsbin/3563558640-lbx__ar.js', 'lightboxCssUrl': 'https://www.blogger.com/static/v1/v-css/13464135-lightbox_bundle_rtl.css'}, 'displayModeFull')); _WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML205', 'PostAds', document.getElementById('HTML205'), {}, 'displayModeFull')); _WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML206', 'PostAds', document.getElementById('HTML206'), {}, 'displayModeFull')); _WidgetManager._RegisterWidget('_HTMLView', new _WidgetInfo('HTML207', 'PostAds', document.getElementById('HTML207'), {}, 'displayModeFull'));