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Register a new userStudy of the systemic activity of carbendazim fungicide in cucumber plants and its effect on the growth of plants
دراسة النشاط الجهازي للمبيد الفطري كربندازيم في نباتات الخيار و تأثيره في نمو النباتات
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درسنا في هذا البحث النشاط الجهازي للمبيد الفطري كربندازيم في نباتات الخيار صنف ملتون (F1 هجين)، تمَّ ذلك من خلال المعاملة بالمبيد عن طريق التربة وفق التراكيز 0.25 – 0.5- 1.0-2.5 غ مادة فعالة لكل كغ تربة، و الرش الورقي للنباتات بعمر شهر (ثلاث أوراق حقيقية) وفق التركيز المنصوح به و هو 0.25 غ مادة فعالة لكل لتر ماء و نصف التركيز و ضعفه. اعتمدت الطريقة الحيوية للكشف عن النشاط الجهازي للمبيد، و ذلك بوضع الأجزاء النباتية بتماس مباشر مع أبواغ فطر حساس للمبيد المطلوب الكشف عنه على بيئة PDA ضمن أطباق بتري. تم الكشف عن وجود الكربندازيم في الجذر و الأوراق الفلقية و الورقة الحقيقية الأولى بعد 20 يوماً من معاملة التربة و ذلك لجميع التراكيز، كما تم ملاحظة مثابرة المبيد في النباتات بعد أربعين يوماً. أما في معاملة الرش الورقي فتمّ الكشف عن المبيد في جميع التراكيز بعد يوم من الرش، و للتركيز المنصوح به و ضعفه فقط بعد خمسة و عشرة و عشرين يوماً من الرش.
We studied in this research the systemic activity of fungicide carbendazim in cucumber plants (Hybrid F1 Milton). The soil was treated with fungicide with concentrations of 0.25 - 0.5 - 1.0 - 2.5 g active ingredient per kg of soil and the month-old plants was sprayed (three true leaves) with the recommended concentration 0.25 active ingredient per liter of water, half and double of concentration. Bioassay method was used to detection the systemic activity of fungicide by putting the plant parts in direct contact with sensitive fungus spores within petri dishes that containing PDA. It has been detected the presence of carbendazim in the root , cotyledonary leaves and first real leaf after 20 days from treatment the soil for all concentrations, as it was observed the fungicide persistence in plants after forty days. In the spraying treatment, It has been detected the presence of carbendazim after one day for all concentrations and for the recommended and double concentration only after five, ten and twenty days of spraying.
References used
AMINI, J., and SIDOVICH, D.F. The Effects of Fungicides on Fusarium oxysporum F. sp lycopersici Associated with Fusarium wilt of Tomato. Plant Protection Research 50:172-178. 2010
ANAND, T., CHANDRASEKARAN, A., KUTTALAM, S. P., SENTHILRAJA, G., RAGUCHANDER, T. and SAMIYAPPAN, R. Effectiveness of Azoxystrobin in The Control of Erysiphe cichoracearum and Pseudooeronospora cubensis on cucumber. Journal of Plant Protection Research Vol. 48, No. 2, 2008
BADER, K. and ABDEL-BASSET, R. Adaption of plants to Anthropogenic and Environmental stresses: The Effects of air constituents and plant-protective chemicals. In Handbook of plant and crop stress, Pessarakli, Ed. Dekker: New York, 1999
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bloom, flowering andpost-flowering stages each beside its non-inoculated
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Inoculated plants showed reduction in number of leaves, number of branches and yield.
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varieties. Meannumber of leaves per plant of ESTAR F1 H hybrid were 130 in pre
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differences were significant between inoculated plants in both varieties.
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stimulatory effect of Allelochemicals , which present in water extract of this weed . and
may used as potential Bioherbicide after further experiments.
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