تأثير تعقيم التربة بالفورمالين والتشميس في فطور التربة في البيوت المحمية

Authors

  • محمود حسن
  • رياض زيدان
  • لميا منلا

Abstract

هدفت الدراسة إلى تقويم فعالية ثلاث طرائق لتعقيم  التربة في مكافحة بعض الفطور الممرضة للنبات في البيوت المحمية شملت: التعقيم الكيميائي بالفورمالين و التعقيم الشمسي + التسميد العضوي و التعقيم الشمسي, وعند أعماق  0 -  5, 5 - 10 , 10-15 و15- 20 سم .

أظهرت النتائج فعالية معاملات التعقيم في مكافحة الفطور Fusarium spp.و Alternaria spp..
و Verticillum spp. و Sclerotium spp. بالمقارنة مع الشاهد, إذ أمكن مكافحة الفطر Verticillum spp. بنسبة 100 % حتى عمق 20 سم عند متوسط درجات حرارة 43.72 – 37.90ºس في معاملات التعقيم, والقضاء على 97.25)% و % 92.86 و94.43 %) من أعداد الوحدات التكاثرية للأجناس Fusarium spp., Alternaria spp., Sclerotium spp. على التوالي, عند متوسط درجات حرارة بين (51.59–54.01 )ºس
و % 98.38) و 93.92% و95% ) عند متوسط درجات حرارة بين (53.15 –(54.71ºس عند عمق 0 -  5سم عند التعقيم  بالتشميس والتعقيم الشمسي مع التسميد على التوالي.  كما تم القضاء على 100% من أعداد الوحدات التكاثرية للأجناس Fusarium spp. Alternaria spp. وVerticillum spp. و 94.43% من أعداد الجنس Sclerotium spp. عند عمق 0- 5 سم  لدى تعقيم التربة بالفورمالين وانخفضت هذه النسب  بزيادة العمق في جميع معاملات التعقيم .

 

The study was carried out to comparison between of of three controlling  treetments,  of soil-borne fungi in greenhouses. The treetments were as follows: An treeted control, Formalin 3%, soil Solarization + animal manur and solarization for 50 days, and 0 , 5, 10 ,15  and 20 cm depth.  Results showed significant differences between the control and disinfection treetments in reduction the total number of fungal propagules of pathogenic fungi: Fusarium spp., Alternaria spp. , Verticillum spp. , Sclerotium spp.  At  the four deapth, and the results showed that : 100% reduction  at 20 cm in the number of Verticillum spp. at the  average of  soil temperature between 37.90 - 43.72°c, and (97.25%, 92.86%, 94.43 %) of  Fusarium spp. , Alternaria spp., Sclerotium spp. respectevily at the average of  soil temperature 51.59 -54.1°c  and (98.38%, 93.92%, 95% ) at the average of soil temperature 53.15-54.71°c, in solarized soi land solarized soil+ animal manur treetment at 0-5cm deapth.  The chemical control  resulted 100 % reduction in the number of  Fusarium spp. , Alternaria spp., Verticillum spp. and 94.43% of Sclerotium spp. at the deapth 0-5 cm in all treetments, and this reductions dicreased with increasing deapth.

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Published

2013-08-13

How to Cite

حسن م., زيدان ر., & منلا ل. (2013). تأثير تعقيم التربة بالفورمالين والتشميس في فطور التربة في البيوت المحمية. Tishreen University Journal -Biological Sciences Series, 35(6). Retrieved from https://journal.tishreen.edu.sy/index.php/bioscnc/article/view/166

Issue

Vol. 35 No. 6 (2013): العلوم البيولوجية

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Articles

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